angular-docs-cn/dev-infra/bazel/browsers/browser_repositories.bzl
Paul Gschwendtner 9456eca7c5 feat(dev-infra): better caching for browser archive contents (#42814)
Adds better caching for browser archives and their extraction.
This is done because the archives are currently extracted as a build
action and these are actions are invalidated frequently, causing
flakiness on the CI and slow-down in local development.

Here is an example flaky error on the CI (that surfaces often
with RBE execution):

```
ERROR:
/home/circleci/.cache/bazel/_bazel_circleci/9ce5c2144ecf75d11717c0aa41e45a8d/external/npm/@angular/dev-infra-private/bazel/browsers/chromium/BUILD.bazel:22:17:
Extracting ../org_chromium_chromium_amd64/file/chrome-linux.zip failed:
(Exit 34): extract.sh failed: error executing command
external/io_bazel_rules_webtesting/web/internal/extract.sh
external/org_chromium_chromium_amd64/file/chrome-linux.zip ...
(remaining 2 argument(s) skipped). Note: Remote connection/protocol
failed with: execution failed
```

We fix this by introducing a new rule that downloads a browser
archive and unpacks it directly into a Bazel repository. Before
this change, the archive would just be downloaded but extracted
later as part of a build action. This is unnecessary and results
in less efficient caching as build actions are invalidated more
often, especially if developers run `bazel clean` in between.

The root cause on why the extraction often fails in RBE containers
is unclear. It's unclear why the extacted archive is not cached
properly as part of a build action (most likely some hermeticity
issue within `rules_webtesting`, but it seems more Bazel-idiomatic
to unpack the archives as part of the repository anyway, and this solves
the flakiness issue.

PR Close #42814
2021-07-12 14:37:10 -07:00

16 lines
563 B
Python

"""Pinned browser versions.
This function is here to make browser repositories work with cross-platform RBE.
Unlike the `rules_webtesting` `browser_repositories`, this function defines
separate repositories for each platform.
"""
load("//dev-infra/bazel/browsers/chromium:chromium.bzl", "define_chromium_repositories")
load("//dev-infra/bazel/browsers/firefox:firefox.bzl", "define_firefox_repositories")
def browser_repositories():
"""Load pinned rules_webtesting browser versions."""
define_chromium_repositories()
define_firefox_repositories()