flutter/dev/tracing_tests
Gray Mackall f3d2204827
[Android] Add .cxx directories to app template .gitignore (#161069)
Fixes (but I still need to write the draft of the blog section so don't
autoclose github 🙏 ) https://github.com/flutter/flutter/issues/160372.

-Module templates [already exclude the entire `.android`
directory](d9b7e56646/packages/flutter_tools/templates/module/common/.gitignore.tmpl (L40)).
-Plugin templates [already exclude
`.cxx`](d9b7e56646/packages/flutter_tools/templates/plugin_shared/android.tmpl/.gitignore).

Modified the existing gitignores with
```
nl=$'\n'
sed -i'' -e '/GeneratedPluginRegistrant.java/a\'$'\n''.cxx/'"\\${nl}"'' $(find . -path \*android/.gitignore)
```
(which was probably not the best way)

Fun fact: apparently the `.gitignore` files (including the ones we copy
to the template apps) aren't indexed for search (the `.gitignore.tmpl`
are, but not the ones that we copy exactly [such as this
one](27ba2f2790/packages/flutter_tools/templates/app/android.tmpl/.gitignore)).

## Pre-launch Checklist

- [x] I read the [Contributor Guide] and followed the process outlined
there for submitting PRs.
- [x] I read the [Tree Hygiene] wiki page, which explains my
responsibilities.
- [x] I read and followed the [Flutter Style Guide], including [Features
we expect every widget to implement].
- [x] I signed the [CLA].
- [x] I listed at least one issue that this PR fixes in the description
above.
- [x] I updated/added relevant documentation (doc comments with `///`).
- [ ] I added new tests to check the change I am making, or this PR is
[test-exempt].
- [x] I followed the [breaking change policy] and added [Data Driven
Fixes] where supported.
- [ ] All existing and new tests are passing.

If you need help, consider asking for advice on the #hackers-new channel
on [Discord].

<!-- Links -->
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[Tree Hygiene]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md
[test-exempt]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#tests
[Flutter Style Guide]:
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[Discord]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Chat.md
[Data Driven Fixes]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Data-driven-Fixes.md

---------

Co-authored-by: Gray Mackall <mackall@google.com>
Co-authored-by: Reid Baker <hamilton.reid.baker@gmail.com>
Co-authored-by: Greg Price <gnprice@gmail.com>
2025-01-07 18:09:49 +00:00
..
android [Android] Add .cxx directories to app template .gitignore (#161069) 2025-01-07 18:09:49 +00:00
lib Auto-format Framework (#160545) 2024-12-19 20:06:21 +00:00
test Auto-format Framework (#160545) 2024-12-19 20:06:21 +00:00
pubspec.yaml Bump characters, collection, meta (#161066) 2025-01-03 02:23:10 +00:00
README.md Improve tracing (#93086) 2021-12-10 10:09:24 -08:00

Tracing tests

"Application"

The lib/test.dart and lib/control.dart files in this directory are used by dev/bots/test.dart's runTracingTests function to check whether aspects of the tracing logic in the framework get compiled out in profile and release builds. They're not meant to be run directly.

The strings in these files are used in dev/bots/test.dart.

Tests

The tests in this folder must be run with flutter test --enable-vmservice, since they test that trace data is written to the timeline by connecting to the observatory.

These tests will fail if run without this flag.