Currently, we shrink classpath snapshots at 2 steps:
- Classpath diffing: Shrink the current classpath snapshot against
the previous lookup symbols
- Classpath snapshot saving: Shrink the current classpath snapshot
against the current lookup symbols
With this commit, the shrinking at the second step is now incremental.
The shrinking at the first step is still non-incremental.
Compute library md5 hash and check it first with cached one. If hashes
are equal it means that cache is up-to-date and no additional checks are
needed
- store library hashes (flat + trans) into cache info file
- change invalidator return value
Without this, one has to define a file like `karma.config.d/karma.conf.js`
with contents:
```js
config.set({
browsers: ['ChromeHeadlessNoSandbox'],
customLaunchers: {
ChromeHeadlessNoSandbox: {
base: 'ChromeHeadless',
// Needed to work on Jenkins. Otherwise, there's an error:
// 'Running as root without --no-sandbox is not supported. See https://crbug.com/638180.'
flags: ['--no-sandbox'],
}
}
});
```
This change allows staying 100% in Gradle config for such configuration.
With growing usage of Kubernetes, this flag becomes more and more
popular.
Ideally the Karma config API in Gradle could be more flexible, so that
e.g. someone that uses Chromium could also use `--no-sandbox` flag.
However, it's some bigger change that influnces the API, so I want this
change to be simple.
Related Slack thread: https://kotlinlang.slack.com/archives/C0B8L3U69/p1639133380172400
We do it because sometimes we want to treat a regular class as
an inline class. For example, in the Wasm backend we treat classes
with the `@WasmAutoboxed` annotation as inline classes. Also, in
the JS IR backend the `Char` class is declared as a regular class for
compatibility reasons, but we want it to be an inline class for
performance.
When new mark phase finished before previous finalization is done,
extra objects are still in list, which would be passed to finalize.
This could lead to unpredictable effects.
After this commit such objects are marked by new flag and ignored by
next gc runs.
Ilya Chernikov