[MERGE] Kotlin/Native history merged into kotlin/master

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/native/NativeCompilerDownloader.kt

@@ -57,8 +57,14 @@ class NativeCompilerDownloader(
             }
         }
 
+    val versionStringRepresentation = compilerVersion.toStringPre1_5_20(
+        compilerVersion.meta != MetaVersion.RELEASE,
+        compilerVersion.meta != MetaVersion.RELEASE
+    )
+
+
     private val dependencyNameWithVersion: String
-        get() = "$dependencyName-$compilerVersion"
+        get() = "$dependencyName-$versionStringRepresentation"
 
     private val dependencyFileName: String
         get() = "$dependencyNameWithVersion.$archiveExtension"
@@ -100,7 +106,7 @@ class NativeCompilerDownloader(
         val repoUrl = buildString {
             append("$BASE_DOWNLOAD_URL/")
             append(if (compilerVersion.meta == MetaVersion.DEV) "dev/" else "releases/")
-            append("$compilerVersion/")
+            append("$versionStringRepresentation/")
             append(simpleOsName)
         }
         val dependencyUrl = "$repoUrl/$dependencyFileName"
@@ -110,7 +116,7 @@ class NativeCompilerDownloader(
         val compilerDependency = project.dependencies.create(
             mapOf(
                 "name" to dependencyName,
-                "version" to compilerVersion.toString(),
+                "version" to versionStringRepresentation,
                 "ext" to archiveExtension
             )
         )
@@ -157,4 +163,36 @@ class NativeCompilerDownloader(
             downloadAndExtract()
         }
     }
-}
+}
+/**
+ * Once we've decide to make K/N version like K one (with droppable maintenance 0), but this breaks old publications,
+ * when did merging kotlin with kotlin/native after 1.5.0 release.
+ * older 1.5.20?
+ */
+fun CompilerVersion.toStringPre1_5_20(showMeta: Boolean = meta != MetaVersion.RELEASE, showBuild: Boolean = meta != MetaVersion.RELEASE) =
+    buildString {
+        if (major > 1
+            || minor > 5
+            || maintenance > 20
+        )
+            return toString(showMeta, showBuild)
+        append(major)
+        append('.')
+        append(minor)
+        if (maintenance != 0) {
+            append('.')
+            append(maintenance)
+        }
+        if (milestone != -1) {
+            append("-M")
+            append(milestone)
+        }
+        if (showMeta) {
+            append('-')
+            append(meta.metaString)
+        }
+        if (showBuild && build != -1) {
+            append('-')
+            append(build)
+        }
+    }