[+] Force push detection & sync

Updated installation instructions and demo generation details in README.

.mailmap

@@ -0,0 +1 @@
+Azalea <noreply@aza.moe> <22280294+hykilpikonna@users.noreply.github.com>

Cargo.lock

@@ -1118,7 +1118,7 @@ dependencies = [
 
 [[package]]
 name = "refray"
-version = "0.1.0"
+version = "0.1.1"
 dependencies = [
  "anyhow",
  "clap",

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "refray"
-version = "0.1.0"
+version = "0.1.1"
 edition = "2024"
 authors = ["Azalea"]
 description = "∞-way read-write git mirroring tool"

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 Azalea
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -1,3 +1,7 @@
+<p align="center">
+  <img src="./docs/refray.png" alt="refray logo" width="70%"/>
+</p>
+
 # refray
 
 A tool to keep your repos in sync across all git platforms, while being able to work from everywhere all at once. 
@@ -8,17 +12,46 @@ Created becasue github is so unusable and [unreliable](https://red-squares.cian.
 - **read-write mirrors**: Make changes from any provider, and the changes will sync to the others
 - **webhook support**: Sync right after push, reduce potential divergence window
 - **conflict handling**: Rebase or open pull requests when two platforms diverge
-- **tracks deletions**: Delete branches/repos across platforms when they are deleted from one platform
+- **tracks deletions**: Branches/repo deletions sync across platforms (with backup) 
 - **selective sync**: Sync subset of repos by regex white/black list, or by private/public visibility
+- **multithreaded**: Process multiple repos simultaneously!
 
 Supported platforms: GitHub, GitLab, Gitea, Forgejo
 
 > [!NOTE]
-> Meow
+> My cat made this codebase, meow
+
+![demo](./docs/demo.webp)
+
+<!--
+
+The demo was rendered from an asciinema cast with capped idle pauses, Sarasa Mono SC, a One Half Dark palette with lighter dark-gray ANSI slots, and a larger font:
+
+```sh
+agg --idle-time-limit 1 \
+  --theme '282C34,DCDFE4,5C6370,E06C75,98C379,E5C07B,61AFEF,C678DD,56B6C2,DCDFE4,7F848E,E06C75,98C379,E5C07B,61AFEF,C678DD,56B6C2,DCDFE4' \
+  --text-font-family 'Sarasa Mono SC' \
+  --font-size 24 \
+  --cols 160 \
+  --rows 42 \
+  ../out.cast \
+  demo.gif
+
+ffmpeg -i demo.gif \
+  -loop 0 \
+  -c:v libwebp_anim \
+  -lossless 1 \
+  -compression_level 6 \
+  -q:v 100 \
+  docs/demo.webp
+```
+
+--->
+
 
 ## Install
 
-### Option 1. Install from source
+### Option 1. Install with Cargo
 
 1. Install rust cargo if you don't have it: https://rustup.rs
 2. `cargo install refray`
@@ -69,8 +102,8 @@ token = { value = "gitea_pat_..." }
 [[mirrors]]
 name = "personal"
 sync_visibility = "all"
-repo_whitelist = ["^important-"]
+repo_whitelist = "^important-"
-repo_blacklist = ["-archive$"]
+repo_blacklist = "-archive$"
 create_missing = true
 visibility = "private"
 conflict_resolution = "auto_rebase_pull_request"
@@ -173,13 +206,17 @@ To move installed hooks to a new public URL, use `webhook update`. It removes ho
 refray webhook update https://new.example.com/webhook
 ```
 
-## Sync Semantics
+## Issues and Pull Requests
+
+Issues and pull requests are not mirrored.
+
+<!-- ## Sync Semantics
 
 Each mirror group is treated as a set of equivalent namespaces. Repositories are matched by repository name across all endpoints.
 
 Set `sync_visibility = "all"`, `"private"`, or `"public"` on a mirror group to choose which repository visibility is included in that group. When `refray` creates a missing repository, it mirrors the visibility of the existing repository it is syncing from; `visibility` is only a fallback when no source visibility is available.
 
-Set `repo_whitelist = ["..."]` and/or `repo_blacklist = ["..."]` on a mirror group to filter repository names with regular expressions. An empty whitelist includes all repository names, and blacklist matches are excluded after whitelist matches. These name filters are independent from `sync_visibility`; both must match for a repository to be synced.
+Set `repo_whitelist = "..."` and/or `repo_blacklist = "..."` on a mirror group to filter repository names with regular expressions. Omit `repo_whitelist` to include all repository names, and blacklist matches are excluded after whitelist matches. These name filters are independent from `sync_visibility`; both must match for a repository to be synced.
 
 For every repository name found in any endpoint, `refray` will:
 
@@ -203,7 +240,9 @@ Conflict resolution strategies are configured per mirror group:
 
 When a previously opened conflict pull request is merged, the next sync sees the merged branch as the winning tip, pushes it to the other endpoints, and closes stale `refray/conflicts/...` pull requests for that branch.
 
-Repository and branch deletion are propagated only when it is safe to infer intent. If a repository existed on every endpoint in the previous successful sync, then disappears from one endpoint while the remaining endpoints still have the previous synced refs, `refray` deletes it from the remaining endpoints instead of recreating it. If the repository was deleted everywhere, `refray` removes its saved sync state. If the repository was deleted on one endpoint but changed elsewhere, it is treated as a conflict and skipped.
+Force-pushes are propagated only when `refray` can infer intent from the previous successful sync state. If a branch previously matched everywhere, one endpoint rewrites that branch to a non-descendant tip, and the other endpoints still have the previous tip, `refray` writes local backup refs and a bundle under the work-dir `backups/` directory before force-pushing the rewritten tip to the other endpoints. If multiple endpoints rewrite the branch differently, or another endpoint also advances independently, the branch is treated as a conflict and skipped.
+
+Repository and branch deletion are propagated only when it is safe to infer intent, and `refray` writes local backup refs and bundle files under the work-dir `backups/` directory before propagating those deletions. If a repository existed on every endpoint in the previous successful sync, then disappears from one endpoint while the remaining endpoints still have the previous synced refs, `refray` deletes it from the remaining endpoints instead of recreating it when `delete_missing = true`. If `delete_missing = false`, that missing repository is not treated as a deletion and normal missing-repository handling applies. If the repository was deleted everywhere, `refray` removes its saved sync state after creating a local backup from the mirror cache. If the repository was deleted on one endpoint but changed elsewhere, it is treated as a conflict and skipped.
 
 Branch deletion follows the same rule at branch scope: if a branch existed on every endpoint in the previous successful sync, then disappears from one endpoint while the remaining endpoints still have the previous tip, `refray` deletes it from the remaining endpoints instead of recreating it. If the branch was deleted on one endpoint but changed elsewhere, it is treated as a conflict and skipped.
 
@@ -239,8 +278,4 @@ REFRAY_E2E_ALLOW_DESTRUCTIVE=1 \
   cargo test --test sequential -- --ignored --test-threads=1 --nocapture
 ```
 
-By default cleanup only deletes repositories named `refray-e2e-*`. To start by deleting every owned repository visible to the configured accounts, set `REFRAY_E2E_CLEAR_ALL_REPOS=DELETE_ALL_OWNED_REPOS`. Provider skips (`REFRAY_E2E_SKIP_GITHUB`, `REFRAY_E2E_SKIP_GITLAB`, `REFRAY_E2E_SKIP_GITEA`, `REFRAY_E2E_SKIP_FORGEJO`) and `REFRAY_E2E_ALLOW_PARTIAL=1` are available for local debugging, but the full support check should run with all four providers.
+By default cleanup only deletes repositories named `refray-e2e-*`. To start by deleting every owned repository visible to the configured accounts, set `REFRAY_E2E_CLEAR_ALL_REPOS=DELETE_ALL_OWNED_REPOS`. Provider skips (`REFRAY_E2E_SKIP_GITHUB`, `REFRAY_E2E_SKIP_GITLAB`, `REFRAY_E2E_SKIP_GITEA`, `REFRAY_E2E_SKIP_FORGEJO`) and `REFRAY_E2E_ALLOW_PARTIAL=1` are available for local debugging, but the full support check should run with all four providers. -->
-
-## Issues and Pull Requests
-
-Issues and pull requests are not mirrored.

src/config.rs

@@ -56,12 +56,14 @@ pub struct MirrorConfig {
     pub endpoints: Vec<EndpointConfig>,
     #[serde(default)]
     pub sync_visibility: SyncVisibility,
-    #[serde(default, skip_serializing_if = "Vec::is_empty")]
+    #[serde(default, skip_serializing_if = "Option::is_none")]
-    pub repo_whitelist: Vec<String>,
+    pub repo_whitelist: Option<String>,
-    #[serde(default, skip_serializing_if = "Vec::is_empty")]
+    #[serde(default, skip_serializing_if = "Option::is_none")]
-    pub repo_blacklist: Vec<String>,
+    pub repo_blacklist: Option<String>,
     #[serde(default = "default_true")]
     pub create_missing: bool,
+    #[serde(default = "default_true")]
+    pub delete_missing: bool,
     #[serde(default)]
     pub visibility: Visibility,
     #[serde(default)]
@@ -135,8 +137,8 @@ pub enum SyncVisibility {
 
 #[derive(Clone, Debug)]
 pub struct RepoNameFilter {
-    whitelist: Vec<Regex>,
+    whitelist: Option<Regex>,
-    blacklist: Vec<Regex>,
+    blacklist: Option<Regex>,
 }
 
 impl SyncVisibility {
@@ -152,35 +154,41 @@ impl SyncVisibility {
 impl MirrorConfig {
     pub fn repo_filter(&self) -> Result<RepoNameFilter> {
         Ok(RepoNameFilter {
-            whitelist: compile_repo_patterns(&self.name, "repo_whitelist", &self.repo_whitelist)?,
+            whitelist: compile_repo_pattern(&self.name, "repo_whitelist", &self.repo_whitelist)?,
-            blacklist: compile_repo_patterns(&self.name, "repo_blacklist", &self.repo_blacklist)?,
+            blacklist: compile_repo_pattern(&self.name, "repo_blacklist", &self.repo_blacklist)?,
         })
     }
 }
 
 impl RepoNameFilter {
     pub fn matches(&self, repo_name: &str) -> bool {
-        let whitelisted = self.whitelist.is_empty()
+        let whitelisted = self
-            || self
             .whitelist
-                .iter()
+            .as_ref()
-                .any(|pattern| pattern.is_match(repo_name));
+            .is_none_or(|pattern| pattern.is_match(repo_name));
         let blacklisted = self
             .blacklist
-            .iter()
+            .as_ref()
-            .any(|pattern| pattern.is_match(repo_name));
+            .is_some_and(|pattern| pattern.is_match(repo_name));
         whitelisted && !blacklisted
     }
 }
 
-fn compile_repo_patterns(mirror: &str, field: &str, patterns: &[String]) -> Result<Vec<Regex>> {
+fn compile_repo_pattern(
-    patterns
+    mirror: &str,
-        .iter()
+    field: &str,
-        .map(|pattern| {
+    pattern: &Option<String>,
+) -> Result<Option<Regex>> {
+    let Some(pattern) = pattern
+        .as_deref()
+        .map(str::trim)
+        .filter(|pattern| !pattern.is_empty())
+    else {
+        return Ok(None);
+    };
     Regex::new(pattern)
         .with_context(|| format!("mirror '{mirror}' has invalid {field} regex '{pattern}'"))
-        })
+        .map(Some)
-        .collect()
 }
 
 fn default_true() -> bool {

src/git.rs

@@ -52,6 +52,13 @@ pub struct BranchUpdate {
     pub force: bool,
 }
 
+#[derive(Clone, Debug)]
+pub struct RefBackup {
+    pub refname: String,
+    pub sha: String,
+    pub description: String,
+}
+
 #[derive(Clone, Debug)]
 pub struct BranchRebaseDecision {
     pub branch: String,
@@ -79,6 +86,12 @@ pub struct GitMirror {
     dry_run: bool,
 }
 
+struct CommitterIdentity {
+    name: String,
+    email: String,
+    date: String,
+}
+
 #[derive(Clone, Debug)]
 pub struct Redactor {
     secrets: Vec<String>,
@@ -420,6 +433,63 @@ impl GitMirror {
         Ok(())
     }
 
+    pub fn backup_refs(&self, backups: &[RefBackup]) -> Result<Vec<String>> {
+        let mut refs = Vec::new();
+        for backup in backups {
+            crate::logln!(
+                "  {} {}",
+                style("backup").cyan().bold(),
+                style(&backup.description).dim()
+            );
+            self.run(["update-ref", &backup.refname, &backup.sha])?;
+            refs.push(backup.refname.clone());
+        }
+        Ok(refs)
+    }
+
+    pub fn create_bundle(&self, path: &Path, refs: &[String]) -> Result<bool> {
+        if refs.is_empty() {
+            return Ok(false);
+        }
+        if self.dry_run {
+            crate::logln!(
+                "  {} git bundle create {} {}",
+                style("dry-run").yellow().bold(),
+                style(path.display()).dim(),
+                style(refs.join(" ")).dim()
+            );
+            return Ok(false);
+        }
+        if let Some(parent) = path.parent() {
+            fs::create_dir_all(parent)
+                .with_context(|| format!("failed to create {}", parent.display()))?;
+        }
+
+        let output = self
+            .command()
+            .arg("bundle")
+            .arg("create")
+            .arg(path)
+            .args(refs)
+            .output()
+            .with_context(|| "failed to run git bundle create")?;
+        if !output.status.success() {
+            let stdout = self
+                .redactor
+                .redact(&String::from_utf8_lossy(&output.stdout));
+            let stderr = self
+                .redactor
+                .redact(&String::from_utf8_lossy(&output.stderr));
+            return Err(GitCommandError::new("git bundle create", stdout, stderr).into());
+        }
+        crate::logln!(
+            "  {} {}",
+            style("backup bundle").cyan().bold(),
+            style(path.display()).dim()
+        );
+        Ok(true)
+    }
+
     fn push_branch_update(&self, remote: &RemoteSpec, update: &BranchUpdate) -> Result<()> {
         let refspec = if update.force {
             format!("+{}:refs/heads/{}", update.sha, update.branch)
@@ -518,6 +588,7 @@ impl GitMirror {
             return Ok(format!("dry-run-rebased-{}", short_sha(tip)));
         }
 
+        let commits = self.replay_commits(base, tip)?;
         let worktree = tempfile::TempDir::new().context("failed to create temporary worktree")?;
         let worktree_path = worktree.path().to_path_buf();
         self.run([
@@ -525,12 +596,13 @@ impl GitMirror {
             "add",
             "--detach",
             worktree_path.to_str().unwrap(),
-            tip,
+            onto,
         ])?;
 
-        let rebase_result = self.worktree_git(&worktree_path, ["rebase", "--onto", onto, base]);
+        let replay_result = self.replay_commits_preserving_committer(&worktree_path, &commits);
-        if let Err(error) = rebase_result {
+        if let Err(error) = replay_result {
-            let _ = self.worktree_git(&worktree_path, ["rebase", "--abort"]);
+            let _ = self.worktree_git(&worktree_path, ["cherry-pick", "--abort"]);
+            let _ = self.worktree_git(&worktree_path, ["reset", "--hard"]);
             let _ = self.run([
                 "worktree",
                 "remove",
@@ -549,6 +621,66 @@ impl GitMirror {
         Ok(rebased.trim().to_string())
     }
 
+    fn replay_commits(&self, base: &str, tip: &str) -> Result<Vec<String>> {
+        let range = format!("{base}..{tip}");
+        Ok(self
+            .output([
+                "rev-list",
+                "--reverse",
+                "--topo-order",
+                "--no-merges",
+                &range,
+            ])?
+            .lines()
+            .map(str::trim)
+            .filter(|line| !line.is_empty())
+            .map(ToOwned::to_owned)
+            .collect())
+    }
+
+    fn replay_commits_preserving_committer(
+        &self,
+        worktree: &Path,
+        commits: &[String],
+    ) -> Result<()> {
+        for commit in commits {
+            let committer = self.committer_identity(commit)?;
+            self.worktree_git(worktree, ["cherry-pick", "--no-commit", commit])?;
+            self.worktree_git_with_committer(
+                worktree,
+                ["commit", "--no-gpg-sign", "-C", commit],
+                &committer,
+            )?;
+        }
+        Ok(())
+    }
+
+    fn committer_identity(&self, commit: &str) -> Result<CommitterIdentity> {
+        let output = self.output(["show", "-s", "--format=%cn%x00%ce%x00%cI", commit])?;
+        let output = output.trim_end_matches('\n');
+        let mut parts = output.split('\0');
+        let name = parts
+            .next()
+            .filter(|value| !value.is_empty())
+            .ok_or_else(|| anyhow::anyhow!("commit {commit} has no committer name"))?;
+        let email = parts
+            .next()
+            .filter(|value| !value.is_empty())
+            .ok_or_else(|| anyhow::anyhow!("commit {commit} has no committer email"))?;
+        let date = parts
+            .next()
+            .filter(|value| !value.is_empty())
+            .ok_or_else(|| anyhow::anyhow!("commit {commit} has no committer date"))?;
+        if parts.next().is_some() {
+            bail!("commit {commit} has unexpected committer metadata");
+        }
+        Ok(CommitterIdentity {
+            name: name.to_string(),
+            email: email.to_string(),
+            date: date.to_string(),
+        })
+    }
+
     pub fn is_ancestor(&self, ancestor: &str, descendant: &str) -> Result<bool> {
         let status = self
             .command()
@@ -645,6 +777,35 @@ impl GitMirror {
             .into())
         }
     }
+
+    fn worktree_git_with_committer<const N: usize>(
+        &self,
+        worktree: &Path,
+        args: [&str; N],
+        committer: &CommitterIdentity,
+    ) -> Result<()> {
+        let output = Command::new("git")
+            .arg("-C")
+            .arg(worktree)
+            .args(args)
+            .env("GIT_COMMITTER_NAME", &committer.name)
+            .env("GIT_COMMITTER_EMAIL", &committer.email)
+            .env("GIT_COMMITTER_DATE", &committer.date)
+            .output()
+            .with_context(|| "failed to run git")?;
+        if output.status.success() {
+            Ok(())
+        } else {
+            Err(GitCommandError::new(
+                "git",
+                self.redactor
+                    .redact(&String::from_utf8_lossy(&output.stdout)),
+                self.redactor
+                    .redact(&String::from_utf8_lossy(&output.stderr)),
+            )
+            .into())
+        }
+    }
 }
 
 fn short_sha(sha: &str) -> &str {
@@ -752,6 +913,13 @@ pub fn is_disabled_repository_error(error: &anyhow::Error) -> bool {
         .any(|error| is_disabled_repository_stderr(error.stderr()))
 }
 
+pub fn is_missing_repository_error(error: &anyhow::Error) -> bool {
+    error
+        .chain()
+        .filter_map(|cause| cause.downcast_ref::<GitCommandError>())
+        .any(|error| is_missing_repository_stderr(error.stderr()))
+}
+
 fn missing_remotes(all_remote_names: &[String], source_remotes: &[String]) -> Vec<String> {
     all_remote_names
         .iter()
@@ -768,6 +936,14 @@ fn is_disabled_repository_stderr(stderr: &str) -> bool {
         || stderr.contains("dmca takedown")
 }
 
+fn is_missing_repository_stderr(stderr: &str) -> bool {
+    let stderr = stderr.to_ascii_lowercase();
+    (stderr.contains("repository") && stderr.contains("not found"))
+        || stderr.contains("project you were looking for could not be found")
+        || stderr.contains("does not appear to be a git repository")
+        || stderr.contains("the requested url returned error: 404")
+}
+
 impl Redactor {
     pub fn new(secrets: Vec<String>) -> Self {
         let secrets = secrets

src/interactive.rs

@@ -38,8 +38,8 @@ struct ParsedProfileUrl {
 
 #[derive(Clone, Debug, Default)]
 struct RepoFilterInput {
-    whitelist: Vec<String>,
+    whitelist: Option<String>,
-    blacklist: Vec<String>,
+    blacklist: Option<String>,
 }
 
 pub fn run_config_wizard(path: &Path) -> Result<ConfigWizardOutcome> {
@@ -115,6 +115,9 @@ fn add_sync_group_styled(config: &mut Config, theme: &ColorfulTheme) -> Result<(
     let endpoints = prompt_sync_group_endpoints_styled(config, theme, &[])?;
     let sync_visibility = prompt_sync_visibility_styled(theme, None)?;
     let repo_filters = prompt_repo_filters_styled(theme, None)?;
+    print_deletion_backup_notice_styled();
+    let create_missing = prompt_create_missing_styled(theme, None)?;
+    let delete_missing = prompt_delete_missing_styled(theme, None)?;
     let conflict_resolution = prompt_conflict_resolution_styled(theme, None)?;
     config.upsert_mirror(MirrorConfig {
         name: next_mirror_name(config),
@@ -122,7 +125,8 @@ fn add_sync_group_styled(config: &mut Config, theme: &ColorfulTheme) -> Result<(
         sync_visibility,
         repo_whitelist: repo_filters.whitelist,
         repo_blacklist: repo_filters.blacklist,
-        create_missing: true,
+        create_missing,
+        delete_missing,
         visibility: Visibility::Private,
         conflict_resolution,
     });
@@ -447,6 +451,8 @@ fn edit_sync_group_styled(config: &mut Config, theme: &ColorfulTheme) -> Result<
     let existing_sync_visibility = config.mirrors[index].sync_visibility.clone();
     let existing_repo_whitelist = config.mirrors[index].repo_whitelist.clone();
     let existing_repo_blacklist = config.mirrors[index].repo_blacklist.clone();
+    let existing_create_missing = config.mirrors[index].create_missing;
+    let existing_delete_missing = config.mirrors[index].delete_missing;
     let existing_conflict_resolution = config.mirrors[index].conflict_resolution.clone();
     let endpoints = prompt_sync_group_endpoints_styled(config, theme, &existing)?;
     let sync_visibility = prompt_sync_visibility_styled(theme, Some(&existing_sync_visibility))?;
@@ -455,12 +461,17 @@ fn edit_sync_group_styled(config: &mut Config, theme: &ColorfulTheme) -> Result<
         blacklist: existing_repo_blacklist,
     };
     let repo_filters = prompt_repo_filters_styled(theme, Some(&existing_repo_filters))?;
+    print_deletion_backup_notice_styled();
+    let create_missing = prompt_create_missing_styled(theme, Some(existing_create_missing))?;
+    let delete_missing = prompt_delete_missing_styled(theme, Some(existing_delete_missing))?;
     let conflict_resolution =
         prompt_conflict_resolution_styled(theme, Some(&existing_conflict_resolution))?;
     config.mirrors[index].endpoints = endpoints;
     config.mirrors[index].sync_visibility = sync_visibility;
     config.mirrors[index].repo_whitelist = repo_filters.whitelist;
     config.mirrors[index].repo_blacklist = repo_filters.blacklist;
+    config.mirrors[index].create_missing = create_missing;
+    config.mirrors[index].delete_missing = delete_missing;
     config.mirrors[index].conflict_resolution = conflict_resolution;
     prompt_webhook_setup_styled(config, theme)?;
     println!(
@@ -780,7 +791,7 @@ fn prompt_repo_filters_styled(
     existing: Option<&RepoFilterInput>,
 ) -> Result<RepoFilterInput> {
     let existing = existing.cloned().unwrap_or_default();
-    let has_existing = !existing.whitelist.is_empty() || !existing.blacklist.is_empty();
+    let has_existing = existing.whitelist.is_some() || existing.blacklist.is_some();
     if !Confirm::with_theme(theme)
         .with_prompt("Configure repository name whitelist/blacklist?")
         .default(has_existing)
@@ -790,51 +801,69 @@ fn prompt_repo_filters_styled(
     }
 
     Ok(RepoFilterInput {
-        whitelist: prompt_repo_pattern_list_styled(
+        whitelist: prompt_repo_pattern_styled(
             theme,
-            "Whitelist regexes (comma-separated, empty means all repo names)",
+            "Whitelist regex (empty means all repo names)",
             &existing.whitelist,
         )?,
-        blacklist: prompt_repo_pattern_list_styled(
+        blacklist: prompt_repo_pattern_styled(theme, "Blacklist regex", &existing.blacklist)?,
-            theme,
-            "Blacklist regexes (comma-separated)",
-            &existing.blacklist,
-        )?,
     })
 }
 
-fn prompt_repo_pattern_list_styled(
+fn prompt_repo_pattern_styled(
     theme: &ColorfulTheme,
     prompt: &str,
-    existing: &[String],
+    existing: &Option<String>,
-) -> Result<Vec<String>> {
+) -> Result<Option<String>> {
     let input = Input::<String>::with_theme(theme)
         .with_prompt(prompt)
         .allow_empty(true)
-        .validate_with(|value: &String| validate_repo_pattern_list(value));
+        .validate_with(|value: &String| validate_repo_pattern(value));
-    let input = if existing.is_empty() {
+    let input = if let Some(existing) = existing {
-        input
+        input.default(existing.clone())
     } else {
-        input.default(existing.join(", "))
+        input
     };
     let value = input.interact_text()?;
-    Ok(parse_repo_pattern_list(&value))
+    Ok(parse_repo_pattern(&value))
 }
 
-fn validate_repo_pattern_list(value: &str) -> std::result::Result<(), String> {
+fn print_deletion_backup_notice_styled() {
-    for pattern in parse_repo_pattern_list(value) {
+    println!();
+    println!(
+        "{} {}",
+        style("Deletion backups").cyan().bold(),
+        style("refray keeps a local backup before propagating repository or branch deletes").dim()
+    );
+}
+
+fn prompt_create_missing_styled(theme: &ColorfulTheme, existing: Option<bool>) -> Result<bool> {
+    Confirm::with_theme(theme)
+        .with_prompt("Create repositories that are missing from an endpoint?")
+        .default(existing.unwrap_or(true))
+        .interact()
+        .map_err(Into::into)
+}
+
+fn prompt_delete_missing_styled(theme: &ColorfulTheme, existing: Option<bool>) -> Result<bool> {
+    Confirm::with_theme(theme)
+        .with_prompt("When a previously synced repository is deleted from one endpoint, delete it everywhere?")
+        .default(existing.unwrap_or(true))
+        .interact()
+        .map_err(Into::into)
+}
+
+fn validate_repo_pattern(value: &str) -> std::result::Result<(), String> {
+    let Some(pattern) = parse_repo_pattern(value) else {
+        return Ok(());
+    };
     Regex::new(&pattern).map_err(|error| format!("invalid regex '{pattern}': {error}"))?;
-    }
     Ok(())
 }
 
-fn parse_repo_pattern_list(value: &str) -> Vec<String> {
+fn parse_repo_pattern(value: &str) -> Option<String> {
-    value
+    let value = value.trim();
-        .split(',')
+    (!value.is_empty()).then(|| value.to_string())
-        .map(str::trim)
-        .filter(|value| !value.is_empty())
-        .map(ToOwned::to_owned)
-        .collect()
 }
 
 fn sync_visibility_index(sync_visibility: &SyncVisibility) -> usize {
@@ -920,10 +949,11 @@ fn sync_group_summary(config: &Config, mirror: &MirrorConfig) -> String {
         .collect::<Vec<_>>()
         .join(" <-> ");
     format!(
-        "{} ({}, {}, {})",
+        "{} ({}, {}, {}, {})",
         endpoints,
         sync_visibility_label(&mirror.sync_visibility),
         repo_filter_label(mirror),
+        repo_lifecycle_label(mirror),
         conflict_resolution_label(&mirror.conflict_resolution)
     )
 }
@@ -937,14 +967,28 @@ fn sync_visibility_label(sync_visibility: &SyncVisibility) -> &'static str {
 }
 
 fn repo_filter_label(mirror: &MirrorConfig) -> String {
-    match (mirror.repo_whitelist.len(), mirror.repo_blacklist.len()) {
+    match (&mirror.repo_whitelist, &mirror.repo_blacklist) {
-        (0, 0) => "repos: all names".to_string(),
+        (None, None) => "repos: all names".to_string(),
-        (whitelist, 0) => format!("repos: whitelist {whitelist}"),
+        (Some(_), None) => "repos: whitelist".to_string(),
-        (0, blacklist) => format!("repos: blacklist {blacklist}"),
+        (None, Some(_)) => "repos: blacklist".to_string(),
-        (whitelist, blacklist) => {
+        (Some(_), Some(_)) => "repos: whitelist + blacklist".to_string(),
-            format!("repos: whitelist {whitelist}, blacklist {blacklist}")
     }
+}
+
+fn repo_lifecycle_label(mirror: &MirrorConfig) -> String {
+    format!(
+        "missing: {}, deletes: {}",
+        if mirror.create_missing {
+            "create"
+        } else {
+            "skip"
+        },
+        if mirror.delete_missing {
+            "propagate"
+        } else {
+            "keep"
         }
+    )
 }
 
 fn conflict_resolution_label(strategy: &ConflictResolutionStrategy) -> &'static str {

src/logging.rs

@@ -1,14 +1,14 @@
 use std::cell::RefCell;
 use std::fmt;
 use std::io::{self, IsTerminal, Write};
-use std::sync::{Mutex, OnceLock};
+use std::sync::{Arc, Mutex, OnceLock};
 
 use console::style;
 
 static OUTPUT: OnceLock<Mutex<OutputState>> = OnceLock::new();
 
 thread_local! {
-    static REPO_LOG: RefCell<Option<RepoLog>> = const { RefCell::new(None) };
+    static REPO_LOG: RefCell<Option<ActiveRepoLog>> = const { RefCell::new(None) };
 }
 
 #[derive(Default)]
@@ -22,11 +22,21 @@ struct StatusState {
     interactive: bool,
 }
 
+#[derive(Clone)]
+pub(crate) struct RepoLogContext {
+    inner: Arc<RepoLog>,
+}
+
+struct ActiveRepoLog {
+    context: RepoLogContext,
+    owner: bool,
+}
+
 struct RepoLog {
     repo_name: String,
     slot: usize,
     width: usize,
-    lines: Vec<String>,
+    lines: Mutex<Vec<String>>,
 }
 
 pub struct StatusGuard;
@@ -63,22 +73,76 @@ pub fn start_status_area(slots: usize) -> StatusGuard {
 }
 
 pub fn start_repo_log(repo_name: String, slot: usize, width: usize) -> RepoLogGuard {
-    REPO_LOG.with(|repo_log| {
+    let context = RepoLogContext {
-        *repo_log.borrow_mut() = Some(RepoLog {
+        inner: Arc::new(RepoLog {
             repo_name,
             slot,
             width,
-            lines: Vec::new(),
+            lines: Mutex::new(Vec::new()),
+        }),
+    };
+    REPO_LOG.with(|repo_log| {
+        *repo_log.borrow_mut() = Some(ActiveRepoLog {
+            context,
+            owner: true,
         });
     });
     RepoLogGuard
 }
 
+pub(crate) fn current_repo_log_context() -> Option<RepoLogContext> {
+    REPO_LOG.with(|repo_log| {
+        repo_log
+            .borrow()
+            .as_ref()
+            .map(|repo_log| repo_log.context.clone())
+    })
+}
+
+pub(crate) fn inherit_repo_log(context: Option<RepoLogContext>) -> InheritedRepoLogGuard {
+    let previous = REPO_LOG.with(|repo_log| {
+        let mut repo_log = repo_log.borrow_mut();
+        let previous = repo_log.take();
+        if let Some(context) = context {
+            *repo_log = Some(ActiveRepoLog {
+                context,
+                owner: false,
+            });
+        }
+        previous
+    });
+    InheritedRepoLogGuard { previous }
+}
+
+pub(crate) struct InheritedRepoLogGuard {
+    previous: Option<ActiveRepoLog>,
+}
+
+impl Drop for InheritedRepoLogGuard {
+    fn drop(&mut self) {
+        REPO_LOG.with(|repo_log| {
+            *repo_log.borrow_mut() = self.previous.take();
+        });
+    }
+}
+
 pub fn finish_repo_log() {
-    let repo_log = REPO_LOG.with(|repo_log| repo_log.borrow_mut().take());
+    let active = REPO_LOG.with(|repo_log| repo_log.borrow_mut().take());
-    let Some(repo_log) = repo_log else {
+    let Some(active) = active else {
         return;
     };
+    if !active.owner {
+        return;
+    }
+
+    let repo_log = active.context.inner;
+    let lines = {
+        let mut lines = repo_log
+            .lines
+            .lock()
+            .unwrap_or_else(|poisoned| poisoned.into_inner());
+        std::mem::take(&mut *lines)
+    };
 
     with_output(|output| {
         if let Some(status) = output.status.as_mut() {
@@ -87,7 +151,7 @@ pub fn finish_repo_log() {
                 status.slots[repo_log.slot] = None;
             }
         }
-        for line in repo_log.lines {
+        for line in lines {
             println!("{line}");
         }
         if let Some(status) = output.status.as_mut() {
@@ -107,27 +171,9 @@ pub fn repo_prefix(repo_name: &str, width: usize) -> String {
 
 pub fn line(args: fmt::Arguments<'_>) {
     let text = args.to_string();
-    let captured = REPO_LOG.with(|repo_log| {
+    let context = current_repo_log_context();
-        let mut repo_log = repo_log.borrow_mut();
+    if let Some(context) = context {
-        let Some(repo_log) = repo_log.as_mut() else {
+        capture_repo_line(&context, &text);
-            return false;
-        };
-
-        if text.is_empty() {
-            repo_log.lines.push(String::new());
-            return true;
-        }
-
-        for line in text.lines() {
-            repo_log.lines.push(line.to_string());
-            if !line.trim().is_empty() {
-                update_status(repo_log, line.trim());
-            }
-        }
-        true
-    });
-
-    if captured {
         return;
     }
 
@@ -142,7 +188,32 @@ pub fn line(args: fmt::Arguments<'_>) {
     });
 }
 
-fn update_status(repo_log: &RepoLog, line: &str) {
+fn capture_repo_line(context: &RepoLogContext, text: &str) {
+    let mut status_updates = Vec::new();
+    {
+        let mut lines = context
+            .inner
+            .lines
+            .lock()
+            .unwrap_or_else(|poisoned| poisoned.into_inner());
+        if text.is_empty() {
+            lines.push(String::new());
+            return;
+        }
+        for line in text.lines() {
+            lines.push(line.to_string());
+            if !line.trim().is_empty() {
+                status_updates.push(line.trim().to_string());
+            }
+        }
+    }
+    for line in status_updates {
+        update_status(context, &line);
+    }
+}
+
+fn update_status(context: &RepoLogContext, line: &str) {
+    let repo_log = &context.inner;
     let repo = repo_prefix(&repo_log.repo_name, repo_log.width);
     let line = truncate_status(line, 96);
     with_output(|output| {

src/parallel.rs

@@ -20,13 +20,16 @@ where
     let worker_count = jobs.min(items.len());
     let queue = Arc::new(Mutex::new(VecDeque::from(items)));
     let (sender, receiver) = mpsc::channel();
+    let repo_log_context = crate::logging::current_repo_log_context();
 
     thread::scope(|scope| {
         for _ in 0..worker_count {
             let queue = Arc::clone(&queue);
             let sender = sender.clone();
             let f = &f;
+            let repo_log_context = repo_log_context.clone();
             scope.spawn(move || {
+                let _repo_log_guard = crate::logging::inherit_repo_log(repo_log_context);
                 while let Some(item) = pop_item(&queue) {
                     if sender.send(f(item)).is_err() {
                         break;

src/provider.rs

@@ -40,6 +40,12 @@ pub struct PullRequestInfo {
     pub url: Option<String>,
 }
 
+#[derive(Clone, Copy, Debug, Eq, PartialEq)]
+pub enum WebhookInstallOutcome {
+    Created,
+    Existing,
+}
+
 pub fn list_mirror_repos(
     config: &Config,
     mirror: &MirrorConfig,
@@ -166,13 +172,26 @@ impl<'a> ProviderClient<'a> {
         )
     }
 
+    pub fn set_default_branch(
+        &self,
+        endpoint: &EndpointConfig,
+        repo_name: &str,
+        branch: &str,
+    ) -> Result<()> {
+        dispatch_provider!(self.site.provider,
+            github => self.github_set_default_branch(endpoint, repo_name, branch),
+            gitlab => self.gitlab_set_default_branch(endpoint, repo_name, branch),
+            gitea_like => self.gitea_set_default_branch(endpoint, repo_name, branch),
+        )
+    }
+
     pub fn install_webhook(
         &self,
         endpoint: &EndpointConfig,
         repo: &RemoteRepo,
         url: &str,
         secret: &str,
-    ) -> Result<()> {
+    ) -> Result<WebhookInstallOutcome> {
         dispatch_provider!(self.site.provider,
             github => self.github_install_webhook(endpoint, repo, url, secret),
             gitlab => self.gitlab_install_webhook(endpoint, repo, url, secret),
@@ -311,13 +330,24 @@ impl<'a> ProviderClient<'a> {
         self.delete(&url).map(|_| ())
     }
 
+    fn github_set_default_branch(
+        &self,
+        endpoint: &EndpointConfig,
+        repo_name: &str,
+        branch: &str,
+    ) -> Result<()> {
+        let url = self.repo_url(endpoint, repo_name, "GitHub")?;
+        self.patch_json::<serde_json::Value>(&url, &json!({ "default_branch": branch }))
+            .map(|_| ())
+    }
+
     fn github_install_webhook(
         &self,
         endpoint: &EndpointConfig,
         repo: &RemoteRepo,
         url: &str,
         secret: &str,
-    ) -> Result<()> {
+    ) -> Result<WebhookInstallOutcome> {
         let hooks_url = self.repo_hooks_url(endpoint, &repo.name, "GitHub")?;
         let body = json!({
             "name": "web",
@@ -435,7 +465,11 @@ impl<'a> ProviderClient<'a> {
                         projects.push(project);
                     }
                 }
-                Ok(projects.into_iter().map(Into::into).collect())
+                Ok(projects
+                    .into_iter()
+                    .filter(|project| !project.is_deletion_scheduled())
+                    .map(Into::into)
+                    .collect())
             }
             NamespaceKind::Org | NamespaceKind::Group => {
                 let encoded = urlencoding(&endpoint.namespace);
@@ -444,7 +478,12 @@ impl<'a> ProviderClient<'a> {
                     self.site.api_base(),
                     encoded
                 );
-                self.paged_remote_repos::<GitlabProject>(&url)
+                Ok(self
+                    .paged_get::<GitlabProject>(&url)?
+                    .into_iter()
+                    .filter(|project| !project.is_deletion_scheduled())
+                    .map(Into::into)
+                    .collect())
             }
         }
     }
@@ -496,6 +535,17 @@ impl<'a> ProviderClient<'a> {
         self.delete(&url).map(|_| ())
     }
 
+    fn gitlab_set_default_branch(
+        &self,
+        endpoint: &EndpointConfig,
+        repo_name: &str,
+        branch: &str,
+    ) -> Result<()> {
+        let url = self.gitlab_project_url(endpoint, repo_name);
+        self.put_json::<serde_json::Value>(&url, &json!({ "default_branch": branch }))
+            .map(|_| ())
+    }
+
     fn gitlab_group(&self, namespace: &str) -> Result<GitlabGroup> {
         let url = format!("{}/groups/{}", self.site.api_base(), urlencoding(namespace));
         self.get_json(&url)
@@ -526,7 +576,7 @@ impl<'a> ProviderClient<'a> {
         repo: &RemoteRepo,
         url: &str,
         secret: &str,
-    ) -> Result<()> {
+    ) -> Result<WebhookInstallOutcome> {
         let hooks_url = self.gitlab_hooks_url(endpoint, &repo.name);
         let body = json!({
             "url": url,
@@ -689,13 +739,24 @@ impl<'a> ProviderClient<'a> {
         self.delete(&url).map(|_| ())
     }
 
+    fn gitea_set_default_branch(
+        &self,
+        endpoint: &EndpointConfig,
+        repo_name: &str,
+        branch: &str,
+    ) -> Result<()> {
+        let url = self.repo_url(endpoint, repo_name, "Gitea/Forgejo")?;
+        self.patch_json::<serde_json::Value>(&url, &json!({ "default_branch": branch }))
+            .map(|_| ())
+    }
+
     fn gitea_install_webhook(
         &self,
         endpoint: &EndpointConfig,
         repo: &RemoteRepo,
         url: &str,
         secret: &str,
-    ) -> Result<()> {
+    ) -> Result<WebhookInstallOutcome> {
         let hooks_url = self.repo_hooks_url(endpoint, &repo.name, "Gitea/Forgejo")?;
         let body = json!({
             "type": "gitea",
@@ -875,10 +936,10 @@ impl<'a> ProviderClient<'a> {
         target_url: &str,
         body: &serde_json::Value,
         put_on_update: bool,
-    ) -> Result<()> {
+    ) -> Result<WebhookInstallOutcome> {
         let Some(hook) = self.find_existing_hook(hooks_url, target_url)? else {
             self.post_json::<serde_json::Value>(hooks_url, body)?;
-            return Ok(());
+            return Ok(WebhookInstallOutcome::Created);
         };
 
         let update_url = format!("{hooks_url}/{}", hook.id);
@@ -887,7 +948,7 @@ impl<'a> ProviderClient<'a> {
         } else {
             self.patch_json::<serde_json::Value>(&update_url, body)?;
         }
-        Ok(())
+        Ok(WebhookInstallOutcome::Existing)
     }
 
     fn delete_matching_hook(&self, hooks_url: &str, target_url: &str) -> Result<bool> {
@@ -1157,6 +1218,10 @@ struct GitlabProject {
     http_url_to_repo: String,
     visibility: String,
     description: Option<String>,
+    marked_for_deletion_at: Option<String>,
+    marked_for_deletion_on: Option<String>,
+    #[serde(default)]
+    pending_delete: bool,
 }
 
 impl GitlabProject {
@@ -1184,6 +1249,37 @@ impl GitlabProject {
                 .eq_ignore_ascii_case(other.project_path()),
         }
     }
+
+    fn is_deletion_scheduled(&self) -> bool {
+        self.pending_delete
+            || self
+                .marked_for_deletion_at
+                .as_deref()
+                .is_some_and(|value| !value.is_empty())
+            || self
+                .marked_for_deletion_on
+                .as_deref()
+                .is_some_and(|value| !value.is_empty())
+            || is_gitlab_deletion_scheduled_path(&self.name)
+            || self
+                .path
+                .as_deref()
+                .is_some_and(is_gitlab_deletion_scheduled_path)
+            || self
+                .path_with_namespace
+                .as_deref()
+                .and_then(|path| path.rsplit('/').next())
+                .is_some_and(is_gitlab_deletion_scheduled_path)
+    }
+}
+
+fn is_gitlab_deletion_scheduled_path(path: &str) -> bool {
+    let Some((name, project_id)) = path.rsplit_once("-deletion_scheduled-") else {
+        return false;
+    };
+    !name.is_empty()
+        && !project_id.is_empty()
+        && project_id.bytes().all(|byte| byte.is_ascii_digit())
 }
 
 #[derive(Deserialize)]

src/webhook.rs

@@ -8,7 +8,6 @@ use std::time::Duration;
 use anyhow::{Context, Result, bail};
 use console::style;
 use hmac::{Hmac, KeyInit, Mac};
-use regex::escape;
 use serde::{Deserialize, Serialize};
 use serde_json::Value;
 use sha2::Sha256;
@@ -18,9 +17,11 @@ use crate::config::{
     Config, EndpointConfig, MirrorConfig, ProviderKind, RepoNameFilter, default_work_dir,
     validate_config,
 };
-use crate::provider::{EndpointRepo, ProviderClient, RemoteRepo, list_mirror_repos};
+use crate::provider::{
+    EndpointRepo, ProviderClient, RemoteRepo, WebhookInstallOutcome, list_mirror_repos,
+};
 use crate::state::{load_toml_or_default, save_toml};
-use crate::sync::{SyncOptions, sync_all};
+use crate::sync::{SyncOptions, sync_all, sync_webhook_repo};
 
 type HmacSha256 = Hmac<Sha256>;
 const WEBHOOK_STATE_FILE: &str = "webhook-state.toml";
@@ -151,6 +152,7 @@ fn full_sync_timer_loop(
             &config,
             SyncOptions {
                 work_dir: work_dir.clone(),
+                jobs: config.jobs,
                 ..SyncOptions::default()
             },
         ) {
@@ -375,15 +377,12 @@ fn worker_loop(
         let _sync_guard = sync_lock
             .lock()
             .unwrap_or_else(|poisoned| poisoned.into_inner());
-        let result = sync_all(
+        let result = sync_webhook_repo(
             &config,
-            SyncOptions {
+            &job.group,
-                group: Some(job.group.clone()),
+            &job.repo,
-                repo_pattern: Some(format!("^{}$", escape(&job.repo))),
+            work_dir.clone(),
-                work_dir: work_dir.clone(),
+            config.jobs,
-                jobs: 1,
-                ..SyncOptions::default()
-            },
         );
         match result {
             Ok(()) => crate::logln!(
@@ -575,24 +574,32 @@ fn run_uninstall_tasks(tasks: Vec<WebhookUninstallTask>, jobs: usize) -> Result<
 
 fn install_webhook_task(task: WebhookInstallTask, state: &Arc<Mutex<WebhookState>>) -> Result<()> {
     let key = webhook_installation_key(&task.group, &task.endpoint, &task.repo.name);
+    if task.dry_run {
         crate::logln!(
             "  {} {} {}",
-        style(if task.dry_run {
+            style("would install").green().bold(),
-            "would install"
-        } else {
-            "install"
-        })
-        .green()
-        .bold(),
             style(&task.repo.name).cyan(),
             style(format!("webhook on {}", task.endpoint.label())).dim()
         );
-    if task.dry_run {
         return Ok(());
     }
     let client = ProviderClient::new(&task.site)?;
-    if let Err(error) = client.install_webhook(&task.endpoint, &task.repo, &task.url, &task.secret)
+    match client.install_webhook(&task.endpoint, &task.repo, &task.url, &task.secret) {
-    {
+        Ok(outcome) => {
+            let action = match outcome {
+                WebhookInstallOutcome::Created => "install",
+                WebhookInstallOutcome::Existing => "exists",
+            };
+            crate::logln!(
+                "  {} {} {}",
+                style(action).green().bold(),
+                style(&task.repo.name).cyan(),
+                style(format!("webhook on {}", task.endpoint.label())).dim()
+            );
+            record_webhook_installation(state, key, task);
+            Ok(())
+        }
+        Err(error) => {
             if is_duplicate_webhook_error(&error) {
                 crate::logln!(
                     "  {} {} {}",
@@ -625,16 +632,15 @@ fn install_webhook_task(task: WebhookInstallTask, state: &Arc<Mutex<WebhookState
                 );
                 return Ok(());
             }
-        return Err(error).with_context(|| {
+            Err(error).with_context(|| {
                 format!(
                     "failed to install webhook for {} on {}",
                     task.repo.name,
                     task.endpoint.label()
                 )
-        });
+            })
+        }
     }
-    record_webhook_installation(state, key, task);
-    Ok(())
 }
 
 fn record_webhook_installation(

tests/e2e/sequential.rs

@@ -25,8 +25,7 @@ const WEBHOOK_SECRET: &str = "refray-e2e-secret";
 #[test]
 #[ignore = "destructive live-provider e2e test; run explicitly with --ignored"]
 fn sequential_live_e2e_all_supported_features() -> Result<()> {
-    let env = EnvFile::load(Path::new(".env"))?;
+    let settings = load_e2e_settings()?;
-    let settings = E2eSettings::from_env(&env)?;
     settings.require_destructive_guard()?;
 
     let mut run = E2eRun::new(settings)?;
@@ -59,6 +58,42 @@ fn sequential_live_e2e_all_supported_features() -> Result<()> {
     Ok(())
 }
 
+#[test]
+#[ignore = "destructive live-provider e2e test; run explicitly with --ignored"]
+fn sequential_live_e2e_force_push_detection() -> Result<()> {
+    let settings = load_e2e_settings()?;
+    settings.require_destructive_guard()?;
+
+    let mut run = E2eRun::new(settings)?;
+    run.preflight()?;
+    run.clear_repositories()?;
+    run.write_config(ConflictMode::AutoRebasePullRequest, None, true)?;
+
+    eprintln!("e2e phase: force-push rewind");
+    run.rewind_force_push_propagates()?;
+    eprintln!("e2e phase: force-push rewrite");
+    run.rewrite_force_push_propagates()?;
+    eprintln!("e2e phase: force-push fast-forward guard");
+    run.normal_fast_forward_still_syncs()?;
+    eprintln!("e2e phase: force-push conflict");
+    run.conflicting_force_pushes_are_not_propagated()?;
+    eprintln!("e2e phase: force-push plus fast-forward conflict");
+    run.force_push_plus_fast_forward_is_not_propagated()?;
+    eprintln!("e2e phase: feature branch force-push");
+    run.feature_branch_force_push_propagates()?;
+
+    run.clear_e2e_repositories()?;
+    Ok(())
+}
+
+fn load_e2e_settings() -> Result<E2eSettings> {
+    let env_path = std::env::var_os("REFRAY_E2E_ENV_FILE")
+        .map(PathBuf::from)
+        .unwrap_or_else(|| PathBuf::from(".env"));
+    let env = EnvFile::load(&env_path)?;
+    E2eSettings::from_env(&env)
+}
+
 struct EnvFile {
     values: HashMap<String, String>,
 }
@@ -339,8 +374,9 @@ secret = {{ value = "{WEBHOOK_SECRET}" }}
 [[mirrors]]
 name = "all"
 sync_visibility = "all"
-repo_whitelist = ['{}']
+repo_whitelist = '{}'
 create_missing = {}
+delete_missing = true
 visibility = "public"
 conflict_resolution = "{}"
 
@@ -379,9 +415,10 @@ namespace = "{}"
         git(&work, ["tag", "v1.0.0"])?;
         let remote_url = source.authenticated_repo_url(&repo)?;
         self.git(&work, ["remote", "add", "origin", &remote_url])?;
-        self.git(
+        self.git_retry(
             &work,
             ["push", "origin", "HEAD:main", "feature/github", "v1.0.0"],
+            "initial seed push",
         )?;
         source.wait_branch(
             &repo,
@@ -392,6 +429,7 @@ namespace = "{}"
         source.wait_repo_listed(&repo)?;
         self.sync_repo(&repo, [])?;
         self.assert_branch_all_equal_after_optional_resync(&repo, MAIN_BRANCH)?;
+        self.assert_default_branch_all_except(&repo, MAIN_BRANCH, &source.site_name)?;
         self.assert_branch_all_equal(&repo, "feature/github")?;
         self.assert_tag_all_equal(&repo, "v1.0.0")?;
 
@@ -615,6 +653,7 @@ namespace = "{}"
         source.wait_branch_absent(&repo, "delete-me")?;
         self.sync_repo(&repo, [])?;
         self.assert_branch_absent_everywhere(&repo, "delete-me")?;
+        self.assert_backup_bundle_contains(&repo, "refs/refray-backups/branches/")?;
         Ok(())
     }
 
@@ -629,6 +668,219 @@ namespace = "{}"
         source.wait_repo_absent(&repo)?;
         self.sync_repo(&repo, [])?;
         self.assert_repo_absent_everywhere(&repo)?;
+        self.assert_backup_bundle_contains(&repo, "refs/refray-backups/repos/")?;
+        Ok(())
+    }
+
+    fn rewind_force_push_propagates(&self) -> Result<()> {
+        let repo = self.repo_name("force-rewind");
+        let source = self.primary_provider();
+        self.seed_all_main(&repo, "force rewind base", 1_700_001_701)?;
+        self.sync_repo(&repo, [])?;
+        let base = self.branch_sha(source, &repo, MAIN_BRANCH)?;
+        let old = self.commit_to_provider_branch(
+            source,
+            &repo,
+            MAIN_BRANCH,
+            "old.txt",
+            "old\n",
+            "force rewind old",
+            1_700_001_702,
+        )?;
+        self.sync_repo(&repo, [])?;
+        self.assert_branch_all_at(&repo, MAIN_BRANCH, &old)?;
+        self.unprotect_main_all(&repo)?;
+
+        self.force_push_provider_branch_to_sha(source, &repo, MAIN_BRANCH, &base)?;
+        self.sync_repo(&repo, [])?;
+        self.assert_branch_all_at(&repo, MAIN_BRANCH, &base)?;
+        self.assert_backup_bundle_contains(&repo, &old)?;
+        Ok(())
+    }
+
+    fn rewrite_force_push_propagates(&self) -> Result<()> {
+        let repo = self.repo_name("force-rewrite");
+        let source = self.primary_provider();
+        self.seed_all_main(&repo, "force rewrite base", 1_700_001_711)?;
+        self.sync_repo(&repo, [])?;
+        let base = self.branch_sha(source, &repo, MAIN_BRANCH)?;
+        let old = self.commit_to_provider_branch(
+            source,
+            &repo,
+            MAIN_BRANCH,
+            "old.txt",
+            "old\n",
+            "force rewrite old",
+            1_700_001_712,
+        )?;
+        self.sync_repo(&repo, [])?;
+        self.assert_branch_all_at(&repo, MAIN_BRANCH, &old)?;
+        self.unprotect_main_all(&repo)?;
+
+        let rewritten = self.force_rewrite_provider_branch_from(
+            source,
+            &repo,
+            MAIN_BRANCH,
+            &base,
+            "rewritten.txt",
+            "rewritten\n",
+            "force rewrite new",
+            1_700_001_713,
+        )?;
+        self.sync_repo(&repo, [])?;
+        self.assert_branch_all_at(&repo, MAIN_BRANCH, &rewritten)?;
+        self.assert_backup_bundle_contains(&repo, &old)?;
+        Ok(())
+    }
+
+    fn normal_fast_forward_still_syncs(&self) -> Result<()> {
+        let repo = self.repo_name("force-fast-forward");
+        let source = self.primary_provider();
+        self.seed_all_main(&repo, "force fast-forward base", 1_700_001_721)?;
+        self.sync_repo(&repo, [])?;
+
+        let newer = self.commit_to_provider_branch(
+            source,
+            &repo,
+            MAIN_BRANCH,
+            "newer.txt",
+            "newer\n",
+            "normal fast-forward",
+            1_700_001_722,
+        )?;
+        self.sync_repo(&repo, [])?;
+        self.assert_branch_all_at(&repo, MAIN_BRANCH, &newer)
+    }
+
+    fn conflicting_force_pushes_are_not_propagated(&self) -> Result<()> {
+        let repo = self.repo_name("force-conflict");
+        let (source, peer) = self.provider_pair();
+        self.seed_all_main(&repo, "force conflict base", 1_700_001_731)?;
+        self.sync_repo(&repo, [])?;
+        let base = self.branch_sha(source, &repo, MAIN_BRANCH)?;
+        let old = self.commit_to_provider_branch(
+            source,
+            &repo,
+            MAIN_BRANCH,
+            "old.txt",
+            "old\n",
+            "force conflict old",
+            1_700_001_732,
+        )?;
+        self.sync_repo(&repo, [])?;
+        self.assert_branch_all_at(&repo, MAIN_BRANCH, &old)?;
+        self.unprotect_main_all(&repo)?;
+
+        self.force_rewrite_provider_branch_from(
+            source,
+            &repo,
+            MAIN_BRANCH,
+            &base,
+            "source.txt",
+            "source\n",
+            "source force rewrite",
+            1_700_001_733,
+        )?;
+        self.force_rewrite_provider_branch_from(
+            peer,
+            &repo,
+            MAIN_BRANCH,
+            &base,
+            "peer.txt",
+            "peer\n",
+            "peer force rewrite",
+            1_700_001_734,
+        )?;
+        let expected_refs = self.branch_refs_by_provider(&repo, MAIN_BRANCH)?;
+
+        self.write_config(ConflictMode::Fail, Some(&exact_pattern(&repo)), true)?;
+        self.sync_repo_expect_failure(&repo, [])?;
+        self.assert_branch_refs_match(&repo, MAIN_BRANCH, &expected_refs)?;
+        self.write_config(ConflictMode::AutoRebasePullRequest, None, true)?;
+        Ok(())
+    }
+
+    fn force_push_plus_fast_forward_is_not_propagated(&self) -> Result<()> {
+        let repo = self.repo_name("force-plus-fast-forward");
+        let (source, peer) = self.provider_pair();
+        self.seed_all_main(&repo, "force plus fast-forward base", 1_700_001_741)?;
+        self.sync_repo(&repo, [])?;
+        let base = self.branch_sha(source, &repo, MAIN_BRANCH)?;
+        let old = self.commit_to_provider_branch(
+            source,
+            &repo,
+            MAIN_BRANCH,
+            "old.txt",
+            "old\n",
+            "force plus fast-forward old",
+            1_700_001_742,
+        )?;
+        self.sync_repo(&repo, [])?;
+        self.assert_branch_all_at(&repo, MAIN_BRANCH, &old)?;
+        self.unprotect_main_all(&repo)?;
+
+        self.force_rewrite_provider_branch_from(
+            source,
+            &repo,
+            MAIN_BRANCH,
+            &base,
+            "rewritten.txt",
+            "rewritten\n",
+            "force plus fast-forward rewrite",
+            1_700_001_743,
+        )?;
+        self.commit_to_provider_branch(
+            peer,
+            &repo,
+            MAIN_BRANCH,
+            "peer-fast-forward.txt",
+            "peer fast-forward\n",
+            "peer fast-forward",
+            1_700_001_744,
+        )?;
+        let expected_refs = self.branch_refs_by_provider(&repo, MAIN_BRANCH)?;
+
+        self.write_config(ConflictMode::Fail, Some(&exact_pattern(&repo)), true)?;
+        self.sync_repo_expect_failure(&repo, [])?;
+        self.assert_branch_refs_match(&repo, MAIN_BRANCH, &expected_refs)?;
+        self.write_config(ConflictMode::AutoRebasePullRequest, None, true)?;
+        Ok(())
+    }
+
+    fn feature_branch_force_push_propagates(&self) -> Result<()> {
+        let repo = self.repo_name("force-feature");
+        let source = self.primary_provider();
+        let branch = "feature/force-push";
+        self.seed_all_main(&repo, "force feature base", 1_700_001_751)?;
+        self.sync_repo(&repo, [])?;
+        let main = self.branch_sha(source, &repo, MAIN_BRANCH)?;
+        let old_feature = self.create_provider_branch(
+            source,
+            &repo,
+            MAIN_BRANCH,
+            branch,
+            "feature.txt",
+            "feature\n",
+            "feature branch old",
+            1_700_001_752,
+        )?;
+        self.sync_repo(&repo, [])?;
+        self.assert_branch_all_at(&repo, branch, &old_feature)?;
+
+        let rewritten_feature = self.force_rewrite_provider_branch_from(
+            source,
+            &repo,
+            branch,
+            &main,
+            "feature-rewritten.txt",
+            "feature rewritten\n",
+            "feature branch rewrite",
+            1_700_001_753,
+        )?;
+        self.sync_repo(&repo, [])?;
+        self.assert_branch_all_at(&repo, branch, &rewritten_feature)?;
+        self.assert_branch_all_at(&repo, MAIN_BRANCH, &main)?;
+        self.assert_backup_bundle_contains(&repo, &old_feature)?;
         Ok(())
     }
 
@@ -696,7 +948,7 @@ namespace = "{}"
         )?;
         let remote_url = provider.authenticated_repo_url(repo)?;
         self.git(&work, ["remote", "add", "origin", &remote_url])?;
-        self.git(&work, ["push", "origin", "HEAD:main"])?;
+        self.git_retry(&work, ["push", "origin", "HEAD:main"], "seed push")?;
         provider.wait_branch(
             repo,
             MAIN_BRANCH,
@@ -723,7 +975,11 @@ namespace = "{}"
         for provider in &self.settings.providers {
             let remote_url = provider.authenticated_repo_url(repo)?;
             self.git(&work, ["remote", "add", &provider.site_name, &remote_url])?;
-            self.git(&work, ["push", &provider.site_name, "HEAD:main"])?;
+            self.git_retry(
+                &work,
+                ["push", &provider.site_name, "HEAD:main"],
+                "seed-all push",
+            )?;
             provider.wait_branch(repo, MAIN_BRANCH, &sha)?;
             provider.wait_repo_listed(repo)?;
             provider.unprotect_branch(repo, MAIN_BRANCH)?;
@@ -756,6 +1012,129 @@ namespace = "{}"
         Ok(())
     }
 
+    #[allow(clippy::too_many_arguments)]
+    fn commit_to_provider_branch(
+        &self,
+        provider: &ProviderAccount,
+        repo: &str,
+        branch: &str,
+        path: &str,
+        contents: &str,
+        message: &str,
+        timestamp: i64,
+    ) -> Result<String> {
+        let work = self.clone_repo(
+            provider,
+            repo,
+            &format!(
+                "commit-{}-{}-{repo}",
+                provider.site_name,
+                sanitize_path(branch)
+            ),
+        )?;
+        self.checkout_remote_branch(&work, branch)?;
+        write_commit(&work, path, contents, message, timestamp)?;
+        let sha = git_output(&work, ["rev-parse", "HEAD"])?;
+        let refspec = format!("HEAD:{branch}");
+        self.git(&work, ["push", "origin", &refspec])?;
+        provider.wait_branch(repo, branch, &sha)?;
+        provider.wait_repo_listed(repo)?;
+        Ok(sha)
+    }
+
+    #[allow(clippy::too_many_arguments)]
+    fn create_provider_branch(
+        &self,
+        provider: &ProviderAccount,
+        repo: &str,
+        base_branch: &str,
+        branch: &str,
+        path: &str,
+        contents: &str,
+        message: &str,
+        timestamp: i64,
+    ) -> Result<String> {
+        let work = self.clone_repo(
+            provider,
+            repo,
+            &format!(
+                "branch-{}-{}-{repo}",
+                provider.site_name,
+                sanitize_path(branch)
+            ),
+        )?;
+        let base_ref = format!("origin/{base_branch}");
+        self.git(&work, ["checkout", "-B", branch, &base_ref])?;
+        write_commit(&work, path, contents, message, timestamp)?;
+        let sha = git_output(&work, ["rev-parse", "HEAD"])?;
+        let refspec = format!("HEAD:{branch}");
+        self.git(&work, ["push", "origin", &refspec])?;
+        provider.wait_branch(repo, branch, &sha)?;
+        provider.wait_repo_listed(repo)?;
+        Ok(sha)
+    }
+
+    fn force_push_provider_branch_to_sha(
+        &self,
+        provider: &ProviderAccount,
+        repo: &str,
+        branch: &str,
+        sha: &str,
+    ) -> Result<()> {
+        let work = self.clone_repo(
+            provider,
+            repo,
+            &format!(
+                "force-to-{}-{}-{repo}",
+                provider.site_name,
+                sanitize_path(branch)
+            ),
+        )?;
+        self.checkout_remote_branch(&work, branch)?;
+        self.git(&work, ["reset", "--hard", sha])?;
+        let refspec = format!("HEAD:{branch}");
+        self.git(&work, ["push", "--force", "origin", &refspec])?;
+        provider.wait_branch(repo, branch, sha)?;
+        provider.wait_repo_listed(repo)
+    }
+
+    #[allow(clippy::too_many_arguments)]
+    fn force_rewrite_provider_branch_from(
+        &self,
+        provider: &ProviderAccount,
+        repo: &str,
+        branch: &str,
+        base_sha: &str,
+        path: &str,
+        contents: &str,
+        message: &str,
+        timestamp: i64,
+    ) -> Result<String> {
+        let work = self.clone_repo(
+            provider,
+            repo,
+            &format!(
+                "force-rewrite-{}-{}-{repo}",
+                provider.site_name,
+                sanitize_path(branch)
+            ),
+        )?;
+        self.checkout_remote_branch(&work, branch)?;
+        self.git(&work, ["reset", "--hard", base_sha])?;
+        write_commit(&work, path, contents, message, timestamp)?;
+        let sha = git_output(&work, ["rev-parse", "HEAD"])?;
+        let refspec = format!("HEAD:{branch}");
+        self.git(&work, ["push", "--force", "origin", &refspec])?;
+        provider.wait_branch(repo, branch, &sha)?;
+        provider.wait_repo_listed(repo)?;
+        Ok(sha)
+    }
+
+    fn checkout_remote_branch(&self, work: &Path, branch: &str) -> Result<()> {
+        let remote_branch = format!("origin/{branch}");
+        self.git(work, ["checkout", "-B", branch, &remote_branch])
+    }
+
     fn clone_repo(&self, provider: &ProviderAccount, repo: &str, label: &str) -> Result<PathBuf> {
         let path = self.git_worktree(label)?;
         let remote_url = provider.authenticated_repo_url(repo)?;
@@ -784,11 +1163,15 @@ namespace = "{}"
         assert_output_success(output, "git", &self.redactor)
     }
 
+    fn git_retry<const N: usize>(&self, path: &Path, args: [&str; N], label: &str) -> Result<()> {
+        retry(label, || self.git(path, args))
+    }
+
     fn set_repo_whitelist(&self, pattern: &str) -> Result<()> {
         let contents = fs::read_to_string(&self.config_path)
             .with_context(|| format!("failed to read {}", self.config_path.display()))?;
         let escaped_pattern = pattern.replace('\'', "''");
-        let replacement = format!("repo_whitelist = ['{escaped_pattern}']");
+        let replacement = format!("repo_whitelist = '{escaped_pattern}'");
         let mut replaced = false;
         let mut updated = contents
             .lines()
@@ -1045,6 +1428,34 @@ namespace = "{}"
         })
     }
 
+    fn assert_branch_all_at(&self, repo: &str, branch: &str, expected: &str) -> Result<()> {
+        retry("branch convergence to expected tip", || {
+            for (provider, actual) in self.branch_refs_by_provider(repo, branch)? {
+                if actual != expected {
+                    bail!("branch {branch} on {provider} is at {actual}, expected {expected}");
+                }
+            }
+            Ok(())
+        })
+    }
+
+    fn assert_branch_refs_match(
+        &self,
+        repo: &str,
+        branch: &str,
+        expected: &BTreeMap<String, String>,
+    ) -> Result<()> {
+        retry("branch refs unchanged", || {
+            let actual = self.branch_refs_by_provider(repo, branch)?;
+            if &actual != expected {
+                bail!(
+                    "branch {branch} refs changed unexpectedly for {repo}: expected {expected:?}, got {actual:?}"
+                );
+            }
+            Ok(())
+        })
+    }
+
     fn assert_branch_all_equal_after_optional_resync(
         &self,
         repo: &str,
@@ -1061,6 +1472,30 @@ namespace = "{}"
         }
     }
 
+    fn assert_default_branch_all_except(
+        &self,
+        repo: &str,
+        branch: &str,
+        excluded_site: &str,
+    ) -> Result<()> {
+        retry("default branch metadata", || {
+            for provider in &self.settings.providers {
+                if provider.site_name == excluded_site {
+                    continue;
+                }
+                let actual = provider.default_branch(repo)?;
+                if actual.as_deref() != Some(branch) {
+                    bail!(
+                        "expected default branch {branch} on {} for {repo}, got {:?}",
+                        provider.site_name,
+                        actual
+                    );
+                }
+            }
+            Ok(())
+        })
+    }
+
     fn assert_tag_all_equal(&self, repo: &str, tag: &str) -> Result<()> {
         retry("tag convergence", || {
             let refs = self.refs_by_provider(repo)?;
@@ -1090,6 +1525,29 @@ namespace = "{}"
         })
     }
 
+    fn assert_backup_bundle_contains(&self, repo: &str, marker: &str) -> Result<()> {
+        let bundles = self.backup_bundles_for_repo(repo)?;
+        for bundle in &bundles {
+            let output = Command::new("git")
+                .args(["bundle", "list-heads", bundle.to_str().unwrap()])
+                .output()
+                .context("failed to run git bundle list-heads")?;
+            if output.status.success() && String::from_utf8_lossy(&output.stdout).contains(marker) {
+                return Ok(());
+            }
+        }
+        bail!(
+            "no local backup bundle for {repo} contained {marker}; checked {:?}",
+            bundles
+        )
+    }
+
+    fn backup_bundles_for_repo(&self, repo: &str) -> Result<Vec<PathBuf>> {
+        let mut bundles = Vec::new();
+        collect_backup_bundles(&self.cache_home, repo, &mut bundles)?;
+        Ok(bundles)
+    }
+
     fn assert_conflict_branch_exists(&self, repo: &str) -> Result<()> {
         retry("conflict branch", || {
             for refs in self.refs_by_provider(repo)?.values() {
@@ -1164,6 +1622,36 @@ namespace = "{}"
         Ok(output)
     }
 
+    fn branch_refs_by_provider(
+        &self,
+        repo: &str,
+        branch: &str,
+    ) -> Result<BTreeMap<String, String>> {
+        let mut output = BTreeMap::new();
+        for (provider, refs) in self.refs_by_provider(repo)? {
+            let sha =
+                refs.branches.get(branch).cloned().ok_or_else(|| {
+                    anyhow!("branch {branch} missing on {provider} for repo {repo}")
+                })?;
+            output.insert(provider, sha);
+        }
+        Ok(output)
+    }
+
+    fn branch_sha(&self, provider: &ProviderAccount, repo: &str, branch: &str) -> Result<String> {
+        provider
+            .ls_remote(repo)?
+            .branches
+            .get(branch)
+            .cloned()
+            .ok_or_else(|| {
+                anyhow!(
+                    "branch {branch} missing on {} for repo {repo}",
+                    provider.site_name
+                )
+            })
+    }
+
     fn unprotect_main_all(&self, repo: &str) -> Result<()> {
         for provider in &self.settings.providers {
             provider.unprotect_branch(repo, MAIN_BRANCH)?;
@@ -1361,6 +1849,17 @@ impl ProviderAccount {
         }
     }
 
+    fn default_branch(&self, repo: &str) -> Result<Option<String>> {
+        let value = self
+            .get_json::<Value>(&self.repo_api_url(repo))
+            .with_context(|| format!("failed to inspect {} default branch", self.site_name))?;
+        Ok(value
+            .get("default_branch")
+            .and_then(Value::as_str)
+            .filter(|branch| !branch.is_empty())
+            .map(ToOwned::to_owned))
+    }
+
     fn wait_repo_present(&self, repo: &str) -> Result<()> {
         retry("repo present", || {
             if self.repo_exists(repo)? {
@@ -1951,6 +2450,26 @@ fn assert_output_success(output: Output, label: &str, redactor: &Redactor) -> Re
     )
 }
 
+fn collect_backup_bundles(dir: &Path, repo: &str, output: &mut Vec<PathBuf>) -> Result<()> {
+    if !dir.exists() {
+        return Ok(());
+    }
+    for entry in fs::read_dir(dir).with_context(|| format!("failed to read {}", dir.display()))? {
+        let entry = entry?;
+        let path = entry.path();
+        if path.is_dir() {
+            collect_backup_bundles(&path, repo, output)?;
+            continue;
+        }
+        if path.extension().and_then(|value| value.to_str()) == Some("bundle")
+            && path.to_string_lossy().contains(repo)
+        {
+            output.push(path);
+        }
+    }
+    Ok(())
+}
+
 fn retry(label: &str, mut action: impl FnMut() -> Result<()>) -> Result<()> {
     let mut last_error = None;
     for _ in 0..30 {

tests/unit/config.rs

@@ -22,9 +22,10 @@ fn parses_value_tokens() {
         [[mirrors]]
         name = "personal"
         sync_visibility = "public"
-        repo_whitelist = ["^important-", "-mirror$"]
+        repo_whitelist = "^important-|-mirror$"
-        repo_blacklist = ["-archive$"]
+        repo_blacklist = "-archive$"
         create_missing = true
+        delete_missing = false
         visibility = "private"
         conflict_resolution = "auto_rebase_pull_request"
 
@@ -51,12 +52,13 @@ fn parses_value_tokens() {
     assert_eq!(config.mirrors[0].sync_visibility, SyncVisibility::Public);
     assert_eq!(
         config.mirrors[0].repo_whitelist,
-        vec!["^important-".to_string(), "-mirror$".to_string()]
+        Some("^important-|-mirror$".to_string())
     );
     assert_eq!(
         config.mirrors[0].repo_blacklist,
-        vec!["-archive$".to_string()]
+        Some("-archive$".to_string())
     );
+    assert!(!config.mirrors[0].delete_missing);
     let webhook = config.webhook.unwrap();
     assert!(webhook.install);
     assert_eq!(webhook.url, "https://mirror.example.test/webhook");
@@ -92,6 +94,30 @@ fn config_defaults_jobs() {
     assert_eq!(config.jobs, DEFAULT_JOBS);
 }
 
+#[test]
+fn mirror_defaults_to_deleting_missing_repos_for_existing_configs() {
+    let config: Config = toml::from_str(
+        r#"
+        [[mirrors]]
+        name = "personal"
+        create_missing = true
+
+        [[mirrors.endpoints]]
+        site = "github"
+        kind = "user"
+        namespace = "alice"
+
+        [[mirrors.endpoints]]
+        site = "gitea"
+        kind = "user"
+        namespace = "alice"
+        "#,
+    )
+    .unwrap();
+
+    assert!(config.mirrors[0].delete_missing);
+}
+
 #[test]
 fn validation_rejects_unknown_sites_and_single_endpoint_groups() {
     let config = Config {
@@ -105,9 +131,10 @@ fn validation_rejects_unknown_sites_and_single_endpoint_groups() {
                 namespace: "alice".to_string(),
             }],
             sync_visibility: SyncVisibility::All,
-            repo_whitelist: Vec::new(),
+            repo_whitelist: None,
-            repo_blacklist: Vec::new(),
+            repo_blacklist: None,
             create_missing: true,
+            delete_missing: true,
             visibility: Visibility::Private,
             conflict_resolution: ConflictResolutionStrategy::Fail,
         }],
@@ -134,9 +161,10 @@ fn validation_rejects_unknown_sites_and_single_endpoint_groups() {
                 },
             ],
             sync_visibility: SyncVisibility::All,
-            repo_whitelist: Vec::new(),
+            repo_whitelist: None,
-            repo_blacklist: Vec::new(),
+            repo_blacklist: None,
             create_missing: true,
+            delete_missing: true,
             visibility: Visibility::Private,
             conflict_resolution: ConflictResolutionStrategy::Fail,
         }],
@@ -199,8 +227,8 @@ fn sync_visibility_matches_repo_privacy() {
 #[test]
 fn repo_name_filter_applies_whitelist_then_blacklist() {
     let mut mirror = mirror_config();
-    mirror.repo_whitelist = vec!["^important-".to_string(), "-mirror$".to_string()];
+    mirror.repo_whitelist = Some("^important-|-mirror$".to_string());
-    mirror.repo_blacklist = vec!["-archive$".to_string()];
+    mirror.repo_blacklist = Some("-archive$".to_string());
     let filter = mirror.repo_filter().unwrap();
 
     assert!(filter.matches("important-api"));
@@ -217,7 +245,7 @@ fn validation_rejects_invalid_repo_filter_regex() {
         mirrors: vec![mirror_config()],
         webhook: None,
     };
-    config.mirrors[0].repo_whitelist = vec!["(".to_string()];
+    config.mirrors[0].repo_whitelist = Some("(".to_string());
 
     let err = validate_config(&config).unwrap_err().to_string();
 
@@ -238,9 +266,10 @@ fn validation_rejects_duplicate_mirror_endpoints() {
             name: "broken".to_string(),
             endpoints: vec![duplicate.clone(), duplicate],
             sync_visibility: SyncVisibility::All,
-            repo_whitelist: Vec::new(),
+            repo_whitelist: None,
-            repo_blacklist: Vec::new(),
+            repo_blacklist: None,
             create_missing: true,
+            delete_missing: true,
             visibility: Visibility::Private,
             conflict_resolution: ConflictResolutionStrategy::Fail,
         }],
@@ -284,9 +313,10 @@ fn mirror_config() -> MirrorConfig {
             },
         ],
         sync_visibility: SyncVisibility::All,
-        repo_whitelist: Vec::new(),
+        repo_whitelist: None,
-        repo_blacklist: Vec::new(),
+        repo_blacklist: None,
         create_missing: true,
+        delete_missing: true,
         visibility: Visibility::Private,
         conflict_resolution: ConflictResolutionStrategy::Fail,
     }

tests/unit/git.rs

@@ -41,6 +41,19 @@ fn detects_provider_disabled_repository_errors() {
     assert!(!is_disabled_repository_error(&generic_forbidden));
 }
 
+#[test]
+fn detects_missing_repository_errors() {
+    let error: anyhow::Error = GitCommandError::new(
+        "git ls-remote",
+        "",
+        "remote: Repository not found.\nfatal: repository 'https://github.com/alice/missing.git/' not found",
+    )
+    .into();
+
+    assert!(is_missing_repository_error(&error));
+    assert!(!is_disabled_repository_error(&error));
+}
+
 #[test]
 fn ls_remote_snapshot_changes_when_remote_refs_change() {
     let fixture = GitFixture::new();
@@ -165,7 +178,15 @@ fn auto_rebase_branch_conflict_replays_later_tip_and_marks_force_targets() {
     let a_tip = fixture.commit_file("a", "a.txt", "a\n", 1_700_000_100);
     fixture.push_head(&fixture.remote_a, "main");
     fixture.reset_hard(&base);
-    let b_tip = fixture.commit_file("b", "b.txt", "b\n", 1_700_000_200);
+    let b_tip = fixture.commit_file_with_committer(
+        "b",
+        "b.txt",
+        "b\n",
+        1_700_000_200,
+        "Original Committer",
+        "original-committer@example.test",
+        1_700_000_250,
+    );
     fixture.push_head(&fixture.remote_b, "main");
 
     let mirror = fixture.mirror();
@@ -192,6 +213,10 @@ fn auto_rebase_branch_conflict_replays_later_tip_and_marks_force_targets() {
         .find(|update| update.target_remote == "b")
         .unwrap();
     assert!(b_update.force);
+    assert_eq!(
+        fixture.mirror_committer(&decision.sha),
+        fixture.mirror_committer(&b_tip)
+    );
 
     mirror
         .push_branch_updates(&fixture.remotes(), &decision.updates)
@@ -275,6 +300,44 @@ fn delete_branches_removes_branch_from_target_remotes() {
     assert!(!fixture.remote_ref_exists(&fixture.remote_b, "refs/heads/main"));
 }
 
+#[test]
+fn backup_refs_create_restorable_bundle_before_branch_delete() {
+    let fixture = GitFixture::new();
+    let expected = fixture.commit("base", "base", 1_700_000_000);
+    fixture.push_head(&fixture.remote_a, "main");
+    fixture.push_head(&fixture.remote_b, "main");
+
+    let mirror = fixture.mirror();
+    fixture.fetch_all(&mirror);
+    let backup_ref = "refs/refray-backups/branches/main/test/a".to_string();
+    mirror
+        .backup_refs(&[RefBackup {
+            refname: backup_ref.clone(),
+            sha: expected.clone(),
+            description: "branch main before delete".to_string(),
+        }])
+        .unwrap();
+    let bundle = fixture._temp.path().join("branch-backup.bundle");
+    mirror
+        .create_bundle(&bundle, std::slice::from_ref(&backup_ref))
+        .unwrap();
+
+    mirror
+        .delete_branches(
+            &fixture.remotes(),
+            &[BranchDeletion {
+                branch: "main".to_string(),
+                deleted_remotes: vec!["a".to_string()],
+                target_remotes: vec!["b".to_string()],
+            }],
+        )
+        .unwrap();
+
+    let heads = git_output(None, ["bundle", "list-heads", bundle.to_str().unwrap()]);
+    assert!(heads.contains(&expected));
+    assert!(heads.contains(&backup_ref));
+}
+
 #[test]
 fn tag_decisions_mirror_matching_or_missing_tags_and_skip_divergent_tags() {
     let fixture = GitFixture::new();
@@ -444,6 +507,35 @@ impl GitFixture {
         self.head()
     }
 
+    fn commit_file_with_committer(
+        &self,
+        message: &str,
+        file_name: &str,
+        contents: &str,
+        author_timestamp: i64,
+        committer_name: &str,
+        committer_email: &str,
+        committer_timestamp: i64,
+    ) -> String {
+        let path = self.work.join(file_name);
+        fs::write(path, contents).unwrap();
+        git(Some(&self.work), ["add", file_name]);
+
+        let author_date = format!("@{author_timestamp} +0000");
+        let committer_date = format!("@{committer_timestamp} +0000");
+        let output = Command::new("git")
+            .current_dir(&self.work)
+            .env("GIT_AUTHOR_DATE", &author_date)
+            .env("GIT_COMMITTER_NAME", committer_name)
+            .env("GIT_COMMITTER_EMAIL", committer_email)
+            .env("GIT_COMMITTER_DATE", &committer_date)
+            .args(["commit", "-m", message])
+            .output()
+            .unwrap();
+        assert_success(&output, "git commit");
+        self.head()
+    }
+
     fn head(&self) -> String {
         git_output(Some(&self.work), ["rev-parse", "HEAD"])
     }
@@ -508,6 +600,20 @@ impl GitFixture {
         .status
         .success()
     }
+
+    fn mirror_committer(&self, reference: &str) -> String {
+        git_output(
+            None,
+            [
+                "--git-dir",
+                self.mirror_path.to_str().unwrap(),
+                "show",
+                "-s",
+                "--format=%cn <%ce> %cI",
+                reference,
+            ],
+        )
+    }
 }
 
 fn git<const N: usize>(current_dir: Option<&Path>, args: [&str; N]) {

tests/unit/interactive.rs

@@ -14,6 +14,8 @@ fn wizard_builds_sync_group_from_profile_urls() {
         "",
         "",
         "",
+        "",
+        "",
         "n",
         "4",
     ]
@@ -46,6 +48,7 @@ fn wizard_builds_sync_group_from_profile_urls() {
     assert_eq!(config.mirrors[0].endpoints[1].namespace, "azalea");
     assert_eq!(config.mirrors[0].sync_visibility, SyncVisibility::All);
     assert!(config.mirrors[0].create_missing);
+    assert!(config.mirrors[0].delete_missing);
     assert_eq!(config.mirrors[0].visibility, Visibility::Private);
     assert_eq!(
         config.mirrors[0].conflict_resolution,
@@ -54,6 +57,9 @@ fn wizard_builds_sync_group_from_profile_urls() {
 
     let output = String::from_utf8(output).unwrap();
     assert!(output.contains("1. github.com/hykilpikonna <-> gitea.example.test/azalea"));
+    assert!(output.contains("Deletion backups: refray keeps a local backup"));
+    assert!(output.contains("Create repositories that are missing from an endpoint?"));
+    assert!(output.contains("delete it everywhere?"));
     assert!(output.contains("Add another sync group"));
     assert!(output.contains("Edit an existing group"));
     assert!(output.contains("Delete an existing group"));
@@ -77,6 +83,8 @@ fn wizard_can_build_three_way_sync() {
         "",
         "",
         "",
+        "",
+        "",
         "n",
         "4",
     ]
@@ -92,6 +100,35 @@ fn wizard_can_build_three_way_sync() {
     assert_eq!(config.sites.len(), 3);
 }
 
+#[test]
+fn wizard_can_disable_missing_repo_creation_and_repo_delete_propagation() {
+    let input = [
+        "https://github.com/alice",
+        "gh-token",
+        "",
+        "https://gitea.example.test/alice",
+        "gt-token",
+        "",
+        "n",
+        "",
+        "",
+        "n",
+        "n",
+        "",
+        "n",
+        "4",
+    ]
+    .join("\n")
+        + "\n";
+    let mut reader = Cursor::new(input.as_bytes());
+    let mut output = Vec::new();
+
+    let config = run_config_wizard_with_io(Config::default(), &mut reader, &mut output).unwrap();
+
+    assert!(!config.mirrors[0].create_missing);
+    assert!(!config.mirrors[0].delete_missing);
+}
+
 #[test]
 fn wizard_can_enable_webhooks() {
     let input = [
@@ -105,6 +142,8 @@ fn wizard_can_enable_webhooks() {
         "",
         "",
         "",
+        "",
+        "",
         "y",
         "https://mirror.example.test/webhook",
         "y",
@@ -159,6 +198,8 @@ fn wizard_reuses_existing_credentials_for_same_instance() {
         "",
         "",
         "",
+        "",
+        "",
         "n",
         "4",
     ]
@@ -211,9 +252,10 @@ fn wizard_starts_existing_config_at_sync_group_menu() {
                 },
             ],
             sync_visibility: SyncVisibility::All,
-            repo_whitelist: Vec::new(),
+            repo_whitelist: None,
-            repo_blacklist: Vec::new(),
+            repo_blacklist: None,
             create_missing: true,
+            delete_missing: true,
             visibility: Visibility::Private,
             conflict_resolution: ConflictResolutionStrategy::Fail,
         }],
@@ -240,9 +282,10 @@ fn wizard_can_ask_to_run_full_sync_after_config() {
             name: "sync-1".to_string(),
             endpoints: Vec::new(),
             sync_visibility: SyncVisibility::All,
-            repo_whitelist: Vec::new(),
+            repo_whitelist: None,
-            repo_blacklist: Vec::new(),
+            repo_blacklist: None,
             create_missing: true,
+            delete_missing: true,
             visibility: Visibility::Private,
             conflict_resolution: ConflictResolutionStrategy::Fail,
         }],
@@ -316,9 +359,10 @@ fn wizard_edits_existing_sync_group_from_menu() {
                 },
             ],
             sync_visibility: SyncVisibility::Private,
-            repo_whitelist: vec!["^important-".to_string()],
+            repo_whitelist: Some("^important-".to_string()),
-            repo_blacklist: vec!["-archive$".to_string()],
+            repo_blacklist: Some("-archive$".to_string()),
             create_missing: false,
+            delete_missing: true,
             visibility: Visibility::Public,
             conflict_resolution: ConflictResolutionStrategy::Fail,
         }],
@@ -337,6 +381,8 @@ fn wizard_edits_existing_sync_group_from_menu() {
         "^public-",
         "-skip$",
         "",
+        "",
+        "",
         "n",
         "4",
     ]
@@ -356,9 +402,10 @@ fn wizard_edits_existing_sync_group_from_menu() {
     assert_eq!(mirror.endpoints[1].site, "gitlab");
     assert_eq!(mirror.endpoints[1].namespace, "bob");
     assert!(!mirror.create_missing);
+    assert!(mirror.delete_missing);
     assert_eq!(mirror.sync_visibility, SyncVisibility::Public);
-    assert_eq!(mirror.repo_whitelist, vec!["^public-".to_string()]);
+    assert_eq!(mirror.repo_whitelist, Some("^public-".to_string()));
-    assert_eq!(mirror.repo_blacklist, vec!["-skip$".to_string()]);
+    assert_eq!(mirror.repo_blacklist, Some("-skip$".to_string()));
     assert_eq!(mirror.visibility, Visibility::Public);
     let output = String::from_utf8(output).unwrap();
     assert!(output.contains("Edit sync group"));
@@ -403,15 +450,16 @@ fn wizard_prefills_existing_sync_group_when_editing() {
                 },
             ],
             sync_visibility: SyncVisibility::All,
-            repo_whitelist: Vec::new(),
+            repo_whitelist: None,
-            repo_blacklist: Vec::new(),
+            repo_blacklist: None,
             create_missing: true,
+            delete_missing: true,
             visibility: Visibility::Private,
             conflict_resolution: ConflictResolutionStrategy::Fail,
         }],
         webhook: None,
     };
-    let input = ["2", "1", "", "", "", "", "n", "", "", "", "n", "4"].join("\n") + "\n";
+    let input = ["2", "1", "", "", "", "", "n", "", "", "", "", "", "n", "4"].join("\n") + "\n";
     let mut reader = Cursor::new(input.as_bytes());
     let mut output = Vec::new();
 
@@ -467,9 +515,10 @@ fn wizard_deletes_existing_sync_group_from_menu() {
                 },
             ],
             sync_visibility: SyncVisibility::All,
-            repo_whitelist: Vec::new(),
+            repo_whitelist: None,
-            repo_blacklist: Vec::new(),
+            repo_blacklist: None,
             create_missing: true,
+            delete_missing: true,
             visibility: Visibility::Private,
             conflict_resolution: ConflictResolutionStrategy::Fail,
         }],
@@ -526,9 +575,10 @@ fn wizard_can_go_back_from_delete_menu() {
                 },
             ],
             sync_visibility: SyncVisibility::All,
-            repo_whitelist: Vec::new(),
+            repo_whitelist: None,
-            repo_blacklist: Vec::new(),
+            repo_blacklist: None,
             create_missing: true,
+            delete_missing: true,
             visibility: Visibility::Private,
             conflict_resolution: ConflictResolutionStrategy::Fail,
         }],

tests/unit/interactive_test_io.rs

@@ -65,6 +65,9 @@ where
     let endpoints = prompt_sync_group_endpoints(reader, writer, config, &[])?;
     let sync_visibility = prompt_sync_visibility(reader, writer, None)?;
     let repo_filters = prompt_repo_filters(reader, writer, None)?;
+    write_deletion_backup_notice(writer)?;
+    let create_missing = prompt_create_missing(reader, writer, None)?;
+    let delete_missing = prompt_delete_missing(reader, writer, None)?;
     let conflict_resolution = prompt_conflict_resolution(reader, writer, None)?;
     config.upsert_mirror(MirrorConfig {
         name: next_mirror_name(config),
@@ -72,7 +75,8 @@ where
         sync_visibility,
         repo_whitelist: repo_filters.whitelist,
         repo_blacklist: repo_filters.blacklist,
-        create_missing: true,
+        create_missing,
+        delete_missing,
         visibility: Visibility::Private,
         conflict_resolution,
     });
@@ -276,6 +280,8 @@ where
                     whitelist: config.mirrors[index - 1].repo_whitelist.clone(),
                     blacklist: config.mirrors[index - 1].repo_blacklist.clone(),
                 };
+                let existing_create_missing = config.mirrors[index - 1].create_missing;
+                let existing_delete_missing = config.mirrors[index - 1].delete_missing;
                 let existing_conflict_resolution =
                     config.mirrors[index - 1].conflict_resolution.clone();
                 let endpoints = prompt_sync_group_endpoints(reader, writer, config, &existing)?;
@@ -283,6 +289,11 @@ where
                     prompt_sync_visibility(reader, writer, Some(&existing_sync_visibility))?;
                 let repo_filters =
                     prompt_repo_filters(reader, writer, Some(&existing_repo_filters))?;
+                write_deletion_backup_notice(writer)?;
+                let create_missing =
+                    prompt_create_missing(reader, writer, Some(existing_create_missing))?;
+                let delete_missing =
+                    prompt_delete_missing(reader, writer, Some(existing_delete_missing))?;
                 let conflict_resolution = prompt_conflict_resolution(
                     reader,
                     writer,
@@ -292,6 +303,8 @@ where
                 config.mirrors[index - 1].sync_visibility = sync_visibility;
                 config.mirrors[index - 1].repo_whitelist = repo_filters.whitelist;
                 config.mirrors[index - 1].repo_blacklist = repo_filters.blacklist;
+                config.mirrors[index - 1].create_missing = create_missing;
+                config.mirrors[index - 1].delete_missing = delete_missing;
                 config.mirrors[index - 1].conflict_resolution = conflict_resolution;
                 prompt_webhook_setup(reader, writer, config)?;
                 writeln!(writer, "updated sync group {index}")?;
@@ -531,7 +544,7 @@ where
     W: Write,
 {
     let existing = existing.cloned().unwrap_or_default();
-    let has_existing = !existing.whitelist.is_empty() || !existing.blacklist.is_empty();
+    let has_existing = existing.whitelist.is_some() || existing.blacklist.is_some();
     if !prompt_bool(
         reader,
         writer,
@@ -542,40 +555,79 @@ where
     }
 
     Ok(RepoFilterInput {
-        whitelist: prompt_repo_pattern_list(
+        whitelist: prompt_repo_pattern(
             reader,
             writer,
-            "Whitelist regexes (comma-separated, empty means all repo names)",
+            "Whitelist regex (empty means all repo names)",
             &existing.whitelist,
         )?,
-        blacklist: prompt_repo_pattern_list(
+        blacklist: prompt_repo_pattern(reader, writer, "Blacklist regex", &existing.blacklist)?,
-            reader,
-            writer,
-            "Blacklist regexes (comma-separated)",
-            &existing.blacklist,
-        )?,
     })
 }
 
-fn prompt_repo_pattern_list<R, W>(
+fn prompt_repo_pattern<R, W>(
     reader: &mut R,
     writer: &mut W,
     label: &str,
-    existing: &[String],
+    existing: &Option<String>,
-) -> Result<Vec<String>>
+) -> Result<Option<String>>
 where
     R: BufRead,
     W: Write,
 {
-    let value = if existing.is_empty() {
+    let value = match existing {
-        prompt_optional(reader, writer, label)?
+        Some(existing) => prompt_with_default(reader, writer, label, existing)?,
-    } else {
+        None => prompt_optional(reader, writer, label)?,
-        prompt_with_default(reader, writer, label, &existing.join(", "))?
     };
-    if let Err(error) = validate_repo_pattern_list(&value) {
+    if let Err(error) = validate_repo_pattern(&value) {
         bail!(error);
     }
-    Ok(parse_repo_pattern_list(&value))
+    Ok(parse_repo_pattern(&value))
+}
+
+fn write_deletion_backup_notice<W>(writer: &mut W) -> Result<()>
+where
+    W: Write,
+{
+    writeln!(
+        writer,
+        "Deletion backups: refray keeps a local backup before propagating repository or branch deletes."
+    )?;
+    Ok(())
+}
+
+fn prompt_create_missing<R, W>(
+    reader: &mut R,
+    writer: &mut W,
+    existing: Option<bool>,
+) -> Result<bool>
+where
+    R: BufRead,
+    W: Write,
+{
+    prompt_bool(
+        reader,
+        writer,
+        "Create repositories that are missing from an endpoint?",
+        existing.unwrap_or(true),
+    )
+}
+
+fn prompt_delete_missing<R, W>(
+    reader: &mut R,
+    writer: &mut W,
+    existing: Option<bool>,
+) -> Result<bool>
+where
+    R: BufRead,
+    W: Write,
+{
+    prompt_bool(
+        reader,
+        writer,
+        "When a previously synced repository is deleted from one endpoint, delete it everywhere?",
+        existing.unwrap_or(true),
+    )
 }
 
 fn sync_visibility_value(sync_visibility: &SyncVisibility) -> &'static str {

tests/unit/logging.rs

@@ -11,3 +11,28 @@ fn status_text_truncates_to_fixed_width() {
     assert_eq!(truncate_status("short", 8), "short");
     assert_eq!(truncate_status("very-long-status", 8), "very-lo~");
 }
+
+#[test]
+fn repo_log_context_is_inherited_by_parallel_workers() {
+    let _guard = start_repo_log("repo-a".to_string(), 0, 8);
+
+    crate::logln!("outer line");
+    crate::parallel::map(vec!["worker line"], 1, |line| {
+        crate::logln!("{line}");
+        Ok::<_, anyhow::Error>(())
+    })
+    .unwrap();
+
+    let lines = {
+        let context = current_repo_log_context().unwrap();
+        context
+            .inner
+            .lines
+            .lock()
+            .unwrap_or_else(|poisoned| poisoned.into_inner())
+            .clone()
+    };
+    finish_repo_log();
+
+    assert_eq!(lines, vec!["outer line", "worker line"]);
+}

tests/unit/provider.rs

@@ -225,6 +225,42 @@ fn list_gitlab_user_repos_merges_authenticated_owned_projects() {
     handle.join().unwrap();
 }
 
+#[test]
+fn list_gitlab_group_repos_ignores_deletion_scheduled_projects() {
+    let projects = r#"[
+        {"name":"active","path":"active","path_with_namespace":"maigolabs/active","http_url_to_repo":"https://gitlab.example.test/maigolabs/active.git","visibility":"private","description":null,"namespace":{"path":"maigolabs","full_path":"maigolabs"}},
+        {"name":"Kairos-deletion_scheduled-82068172","path":"Kairos-deletion_scheduled-82068172","path_with_namespace":"maigolabs/Kairos-deletion_scheduled-82068172","http_url_to_repo":"https://gitlab.example.test/maigolabs/Kairos-deletion_scheduled-82068172.git","visibility":"private","description":null,"namespace":{"path":"maigolabs","full_path":"maigolabs"}},
+        {"name":"marked-at","path":"marked-at","path_with_namespace":"maigolabs/marked-at","http_url_to_repo":"https://gitlab.example.test/maigolabs/marked-at.git","visibility":"private","description":null,"namespace":{"path":"maigolabs","full_path":"maigolabs"},"marked_for_deletion_at":"2026-05-17"},
+        {"name":"marked-on","path":"marked-on","path_with_namespace":"maigolabs/marked-on","http_url_to_repo":"https://gitlab.example.test/maigolabs/marked-on.git","visibility":"private","description":null,"namespace":{"path":"maigolabs","full_path":"maigolabs"},"marked_for_deletion_on":"2026-05-17"},
+        {"name":"pending","path":"pending","path_with_namespace":"maigolabs/pending","http_url_to_repo":"https://gitlab.example.test/maigolabs/pending.git","visibility":"private","description":null,"namespace":{"path":"maigolabs","full_path":"maigolabs"},"pending_delete":true}
+    ]"#;
+    let (api_url, handle) = one_request_server("200 OK", projects, |request| {
+        assert!(
+            request.starts_with(
+                "GET /groups/maigolabs/projects?simple=true&include_subgroups=false&per_page=100 "
+            ),
+            "request was {request}"
+        );
+    });
+    let site = SiteConfig {
+        api_url: Some(api_url),
+        ..site(ProviderKind::Gitlab, None)
+    };
+
+    let repos = ProviderClient::new(&site)
+        .unwrap()
+        .list_repos(&EndpointConfig {
+            site: "gitlab".to_string(),
+            kind: NamespaceKind::Group,
+            namespace: "maigolabs".to_string(),
+        })
+        .unwrap();
+
+    assert_eq!(repos.len(), 1);
+    assert_eq!(repos[0].name, "active");
+    handle.join().unwrap();
+}
+
 #[test]
 fn create_gitlab_repo_returns_existing_repo_when_path_is_taken() {
     let existing = r#"{"name":"repo","path":"repo","path_with_namespace":"alice/repo","http_url_to_repo":"https://gitlab.example.test/alice/repo.git","visibility":"public","description":"existing","namespace":{"path":"alice","full_path":"alice"}}"#;
@@ -282,6 +318,82 @@ fn create_gitlab_repo_returns_existing_repo_when_path_is_taken() {
     handle.join().unwrap();
 }
 
+#[test]
+fn set_github_default_branch_patches_repo() {
+    let (api_url, handle) = one_request_server("200 OK", "{}", |request| {
+        assert!(
+            request.starts_with("PATCH /repos/alice/repo "),
+            "request was {request}"
+        );
+        assert!(
+            request.contains(r#""default_branch":"main""#),
+            "request was {request}"
+        );
+        assert!(
+            request
+                .to_ascii_lowercase()
+                .contains("authorization: bearer secret"),
+            "request was {request}"
+        );
+    });
+    let site = SiteConfig {
+        api_url: Some(api_url),
+        ..site(ProviderKind::Github, None)
+    };
+
+    ProviderClient::new(&site)
+        .unwrap()
+        .set_default_branch(
+            &EndpointConfig {
+                site: "github".to_string(),
+                kind: NamespaceKind::User,
+                namespace: "alice".to_string(),
+            },
+            "repo",
+            "main",
+        )
+        .unwrap();
+    handle.join().unwrap();
+}
+
+#[test]
+fn set_gitlab_default_branch_updates_project() {
+    let (api_url, handle) = one_request_server("200 OK", "{}", |request| {
+        assert!(
+            request.starts_with("PUT /projects/alice%2Frepo "),
+            "request was {request}"
+        );
+        assert!(
+            request.contains(r#""default_branch":"main""#),
+            "request was {request}"
+        );
+        assert!(
+            request
+                .to_ascii_lowercase()
+                .contains("private-token: secret"),
+            "request was {request}"
+        );
+    });
+    let site = SiteConfig {
+        api_url: Some(api_url),
+        ..site(ProviderKind::Gitlab, None)
+    };
+
+    ProviderClient::new(&site)
+        .unwrap()
+        .set_default_branch(
+            &EndpointConfig {
+                site: "gitlab".to_string(),
+                kind: NamespaceKind::User,
+                namespace: "alice".to_string(),
+            },
+            "repo",
+            "main",
+        )
+        .unwrap();
+    handle.join().unwrap();
+}
+
 #[test]
 fn install_webhook_posts_github_hook_when_missing() {
     let (api_url, handle) = request_server(
@@ -309,7 +421,7 @@ fn install_webhook_posts_github_hook_when_missing() {
     };
     let client = ProviderClient::new(&site).unwrap();
 
-    client
+    let outcome = client
         .install_webhook(
             &EndpointConfig {
                 site: "github".to_string(),
@@ -326,6 +438,63 @@ fn install_webhook_posts_github_hook_when_missing() {
             "secret",
         )
         .unwrap();
+
+    assert_eq!(outcome, WebhookInstallOutcome::Created);
+    handle.join().unwrap();
+}
+
+#[test]
+fn install_webhook_reports_existing_forgejo_hook() {
+    let (api_url, handle) = request_server(
+        vec![
+            (
+                "200 OK",
+                r#"[{"id":42,"config":{"url":"https://mirror.example.test/webhook/"}}]"#,
+            ),
+            ("200 OK", r#"{"id":42}"#),
+        ],
+        |index, request| match index {
+            0 => assert!(
+                request.starts_with("GET /repos/alice/repo/hooks "),
+                "request was {request}"
+            ),
+            1 => {
+                assert!(
+                    request.starts_with("PATCH /repos/alice/repo/hooks/42 "),
+                    "request was {request}"
+                );
+                assert!(request.contains("https://mirror.example.test/webhook"));
+                assert!(request.contains("secret"));
+                assert!(request.contains("push"));
+            }
+            _ => unreachable!(),
+        },
+    );
+    let site = SiteConfig {
+        api_url: Some(api_url),
+        ..site(ProviderKind::Forgejo, None)
+    };
+    let client = ProviderClient::new(&site).unwrap();
+
+    let outcome = client
+        .install_webhook(
+            &EndpointConfig {
+                site: "forgejo".to_string(),
+                kind: NamespaceKind::User,
+                namespace: "alice".to_string(),
+            },
+            &RemoteRepo {
+                name: "repo".to_string(),
+                clone_url: "https://codeberg.org/alice/repo.git".to_string(),
+                private: true,
+                description: None,
+            },
+            "https://mirror.example.test/webhook",
+            "secret",
+        )
+        .unwrap();
+
+    assert_eq!(outcome, WebhookInstallOutcome::Existing);
     handle.join().unwrap();
 }
 
@@ -653,6 +822,44 @@ fn create_gitea_repo_returns_existing_repo_on_conflict() {
     handle.join().unwrap();
 }
 
+#[test]
+fn set_gitea_default_branch_patches_repo() {
+    let (api_url, handle) = one_request_server("200 OK", "{}", |request| {
+        assert!(
+            request.starts_with("PATCH /repos/alice/repo "),
+            "request was {request}"
+        );
+        assert!(
+            request.contains(r#""default_branch":"main""#),
+            "request was {request}"
+        );
+        assert!(
+            request
+                .to_ascii_lowercase()
+                .contains("authorization: token secret"),
+            "request was {request}"
+        );
+    });
+    let site = SiteConfig {
+        api_url: Some(api_url),
+        ..site(ProviderKind::Gitea, None)
+    };
+
+    ProviderClient::new(&site)
+        .unwrap()
+        .set_default_branch(
+            &EndpointConfig {
+                site: "gitea".to_string(),
+                kind: NamespaceKind::User,
+                namespace: "alice".to_string(),
+            },
+            "repo",
+            "main",
+        )
+        .unwrap();
+    handle.join().unwrap();
+}
+
 #[test]
 fn open_pull_request_posts_github_pull_when_missing() {
     let (api_url, handle) = request_server(

tests/unit/sync.rs

@@ -174,6 +174,29 @@ fn branch_deletion_decisions_ignore_internal_conflict_branches() {
     assert!(blocked.is_empty());
 }
 
+#[test]
+fn branches_deleted_everywhere_are_backed_up_before_prune() {
+    let mut previous = BTreeMap::new();
+    previous.insert(
+        "github".to_string(),
+        remote_ref_state("a", &[("main", "111")]),
+    );
+    previous.insert(
+        "gitea".to_string(),
+        remote_ref_state("b", &[("main", "111")]),
+    );
+
+    let backups = branches_deleted_everywhere_backups(&previous, &BTreeMap::new(), "stamp");
+
+    assert_eq!(backups.len(), 1);
+    assert_eq!(backups[0].sha, "111");
+    assert!(
+        backups[0]
+            .refname
+            .starts_with("refs/refray-backups/branches/")
+    );
+}
+
 #[test]
 fn repo_deletion_decision_propagates_previous_synced_repo_deletion() {
     let mirror = test_mirror();
@@ -208,6 +231,35 @@ fn repo_deletion_decision_propagates_previous_synced_repo_deletion() {
     );
 }
 
+#[test]
+fn repo_deletion_decision_is_disabled_by_mirror_policy() {
+    let mut mirror = test_mirror();
+    mirror.delete_missing = false;
+    let mut previous = BTreeMap::new();
+    previous.insert(
+        remote_key("github"),
+        remote_ref_state("a", &[("main", "111")]),
+    );
+    previous.insert(
+        remote_key("gitea"),
+        remote_ref_state("b", &[("main", "111")]),
+    );
+    let mut current = BTreeMap::new();
+    current.insert(
+        remote_key("gitea"),
+        remote_ref_state("b", &[("main", "111")]),
+    );
+
+    let decision = repo_deletion_decision(
+        &mirror,
+        &[endpoint_repo("gitea")],
+        Some(&previous),
+        &current,
+    );
+
+    assert_eq!(decision, RepoDeletionDecision::None);
+}
+
 #[test]
 fn repo_deletion_decision_conflicts_when_remaining_repo_changed() {
     let mirror = test_mirror();
@@ -344,7 +396,7 @@ fn all_visibility_keeps_state_only_repos_for_deletion_detection() {
 #[test]
 fn repo_name_filters_do_not_treat_state_only_repos_as_deleted() {
     let mut mirror = test_mirror();
-    mirror.repo_whitelist = vec!["^public-".to_string()];
+    mirror.repo_whitelist = Some("^public-".to_string());
     let repo_filter = mirror.repo_filter().unwrap();
     let mut ref_state = RefState::default();
     ref_state.set_repo(
@@ -396,6 +448,46 @@ fn endpoint_remote_names_do_not_slug_collide() {
     );
 }
 
+#[test]
+fn targeted_endpoint_repos_synthesize_clone_urls_without_listing() {
+    let mirror = MirrorConfig {
+        name: "sync-1".to_string(),
+        endpoints: vec![EndpointConfig {
+            site: "gitlab".to_string(),
+            kind: crate::config::NamespaceKind::Group,
+            namespace: "parent/child".to_string(),
+        }],
+        sync_visibility: crate::config::SyncVisibility::All,
+        repo_whitelist: None,
+        repo_blacklist: None,
+        create_missing: true,
+        delete_missing: true,
+        visibility: crate::config::Visibility::Private,
+        conflict_resolution: ConflictResolutionStrategy::Fail,
+    };
+    let config = Config {
+        jobs: crate::config::DEFAULT_JOBS,
+        sites: vec![crate::config::SiteConfig {
+            name: "gitlab".to_string(),
+            provider: crate::config::ProviderKind::Gitlab,
+            base_url: "https://gitlab.example.test/root".to_string(),
+            api_url: None,
+            token: crate::config::TokenConfig::Value("token".to_string()),
+            git_username: None,
+        }],
+        mirrors: vec![mirror.clone()],
+        webhook: None,
+    };
+
+    let repos = targeted_endpoint_repos(&config, &mirror, "repo").unwrap();
+
+    assert_eq!(repos.len(), 1);
+    assert_eq!(
+        repos[0].repo.clone_url,
+        "https://gitlab.example.test/root/parent/child/repo.git"
+    );
+}
+
 #[test]
 fn created_repo_visibility_follows_existing_public_repo() {
     let mirror = test_mirror();
@@ -440,6 +532,39 @@ fn created_repo_visibility_falls_back_to_config_without_template() {
     );
 }
 
+#[test]
+fn gitlab_invalid_project_name_errors_are_skippable() {
+    let error = anyhow::Error::msg(
+        r#"POST https://gitlab.com/api/v4/projects returned 400 Bad Request: {"message":{"project_namespace.path":["can only include non-accented letters, digits, '_', '-' and '.'. It must not start with '-', '_', or '.'."],"name":["can contain only letters, digits, emoji, '_', '.', '+', dashes, or spaces. It must start with a letter, digit, emoji, or '_'."]}}"#,
+    );
+
+    assert!(is_gitlab_invalid_project_name_error(&error));
+}
+
+#[test]
+fn gitlab_project_path_validation_matches_create_constraints() {
+    for name in ["Kairos", "needLe", "amaoke.app", "repo_1", "repo-1"] {
+        assert!(is_supported_gitlab_project_path(name), "{name}");
+    }
+
+    for name in [
+        "",
+        ".github",
+        "_private",
+        "-draft",
+        "repo.",
+        "repo_",
+        "repo-",
+        "repo.git",
+        "repo.atom",
+        "has space",
+        "has+plus",
+        "荞麦main",
+    ] {
+        assert!(!is_supported_gitlab_project_path(name), "{name}");
+    }
+}
+
 fn remote_ref_state(hash: &str, branches: &[(&str, &str)]) -> RemoteRefState {
     RemoteRefState {
         hash: hash.to_string(),
@@ -472,9 +597,10 @@ fn test_mirror() -> MirrorConfig {
         name: "sync-1".to_string(),
         endpoints: vec![endpoint("github"), endpoint("gitea")],
         sync_visibility: crate::config::SyncVisibility::All,
-        repo_whitelist: Vec::new(),
+        repo_whitelist: None,
-        repo_blacklist: Vec::new(),
+        repo_blacklist: None,
         create_missing: true,
+        delete_missing: true,
         visibility: crate::config::Visibility::Private,
         conflict_resolution: ConflictResolutionStrategy::Fail,
     }

tests/unit/webhook.rs

@@ -112,9 +112,10 @@ fn matches_jobs_by_provider_and_namespace() {
                 endpoint("gitea", NamespaceKind::User, "azalea"),
             ],
             sync_visibility: SyncVisibility::All,
-            repo_whitelist: Vec::new(),
+            repo_whitelist: None,
-            repo_blacklist: Vec::new(),
+            repo_blacklist: None,
             create_missing: true,
+            delete_missing: true,
             visibility: Visibility::Private,
             conflict_resolution: ConflictResolutionStrategy::Fail,
         }],
@@ -139,9 +140,10 @@ fn matching_jobs_respects_repo_name_filters() {
         name: "sync-1".to_string(),
         endpoints: vec![endpoint("github", NamespaceKind::User, "alice")],
         sync_visibility: SyncVisibility::All,
-        repo_whitelist: vec!["^important-".to_string()],
+        repo_whitelist: Some("^important-".to_string()),
-        repo_blacklist: vec!["-archive$".to_string()],
+        repo_blacklist: Some("-archive$".to_string()),
         create_missing: true,
+        delete_missing: true,
         visibility: Visibility::Private,
         conflict_resolution: ConflictResolutionStrategy::Fail,
     };
@@ -159,7 +161,7 @@ fn matching_jobs_respects_repo_name_filters() {
     assert!(matching_jobs(&config, &webhook_event("important-archive")).is_empty());
     assert!(matching_jobs(&config, &webhook_event("random")).is_empty());
 
-    mirror.repo_whitelist.clear();
+    mirror.repo_whitelist = None;
     let config = Config {
         jobs: crate::config::DEFAULT_JOBS,
         sites: vec![site("github", ProviderKind::Github)],
@@ -357,9 +359,10 @@ fn uninstall_webhooks_skips_blocked_provider_access() {
                 endpoint("github-peer", NamespaceKind::User, "bob"),
             ],
             sync_visibility: SyncVisibility::Public,
-            repo_whitelist: Vec::new(),
+            repo_whitelist: None,
-            repo_blacklist: Vec::new(),
+            repo_blacklist: None,
             create_missing: true,
+            delete_missing: true,
             visibility: Visibility::Private,
             conflict_resolution: ConflictResolutionStrategy::Fail,
         }],
@@ -710,9 +713,10 @@ fn filtered_mirror() -> MirrorConfig {
             endpoint("github-peer", NamespaceKind::User, "bob"),
         ],
         sync_visibility: SyncVisibility::Public,
-        repo_whitelist: vec!["^important-".to_string()],
+        repo_whitelist: Some("^important-".to_string()),
-        repo_blacklist: vec!["-archive$".to_string()],
+        repo_blacklist: Some("-archive$".to_string()),
         create_missing: true,
+        delete_missing: true,
         visibility: Visibility::Private,
         conflict_resolution: ConflictResolutionStrategy::Fail,
     }