add ccache support for custom toolchain#180737
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This pull request adds ccache support for custom toolchains by introducing a compiler_prefix in the BUILD.gn file. The change is straightforward and correct. I've suggested a minor stylistic improvement to align with the GN style guide for conditional variable assignment, which makes the code slightly more concise.
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| if (use_ccache) { | ||
| compiler_prefix = "ccache " | ||
| } else { | ||
| compiler_prefix = "" | ||
| } |
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For better readability and to align with the GN style guide, it's preferable to initialize the variable to a default value and then conditionally modify it, rather than using an if-else block. This avoids the unnecessary else block.
compiler_prefix = ""
if (use_ccache) {
compiler_prefix = "ccache "
}
References
- The GN Style Guide suggests omitting an
elseblock when it's not needed. This can be achieved by setting a default value for a variable before anifstatement that might change it. This change makes the code more concise. (link)
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flutter/flutter@1d9d6a9...9eafba4 2026-02-01 [email protected] Roll Skia from a8ceddc2bca0 to 4ee9eb659ae0 (1 revision) (flutter/flutter#181773) 2026-02-01 [email protected] Roll Skia from a5a535bc21a3 to a8ceddc2bca0 (1 revision) (flutter/flutter#181772) 2026-02-01 [email protected] Roll Dart SDK from cde322c518b9 to 84abc8d58ec8 (1 revision) (flutter/flutter#181767) 2026-02-01 [email protected] Roll Dart SDK from c72b3f527a07 to cde322c518b9 (1 revision) (flutter/flutter#181763) 2026-01-31 [email protected] Roll Dart SDK from 43de79f08887 to c72b3f527a07 (1 revision) (flutter/flutter#181762) 2026-01-31 [email protected] Roll Fuchsia Linux SDK from 27OsrsrKcrr2pOaqY... to nI52U4LJMrBv8G1M9... (flutter/flutter#181760) 2026-01-31 [email protected] Roll Dart SDK from a0aac59705e5 to 43de79f08887 (1 revision) (flutter/flutter#181758) 2026-01-31 [email protected] Roll Skia from b704afbcd8e7 to a5a535bc21a3 (1 revision) (flutter/flutter#181757) 2026-01-31 [email protected] Roll Dart SDK from d6f77f9098e1 to a0aac59705e5 (1 revision) (flutter/flutter#181756) 2026-01-31 [email protected] Roll Skia from 6f9511ce11ba to b704afbcd8e7 (4 revisions) (flutter/flutter#181753) 2026-01-31 [email protected] Roll Dart SDK from 0cf997832948 to d6f77f9098e1 (2 revisions) (flutter/flutter#181749) 2026-01-31 [email protected] Roll Skia from 33c00c0f3b8b to 6f9511ce11ba (1 revision) (flutter/flutter#181744) 2026-01-31 [email protected] Roll Dart SDK from be3ffc51d407 to 0cf997832948 (1 revision) (flutter/flutter#181740) 2026-01-30 [email protected] Roll Skia from b62d43b59dd6 to 33c00c0f3b8b (1 revision) (flutter/flutter#181735) 2026-01-30 [email protected] [Impeller] Fix type conversion warnings seen on Windows when Impeller GL API wrappers log arguments with function types (flutter/flutter#181734) 2026-01-30 [email protected] Update New Android API Docs (flutter/flutter#180604) 2026-01-30 [email protected] Roll Fuchsia Linux SDK from isy1ARvK-3bsvtfc-... to 27OsrsrKcrr2pOaqY... (flutter/flutter#181733) 2026-01-30 [email protected] Fix P3-to-sRGB color conversion to operate in linear light (flutter/flutter#181720) 2026-01-30 [email protected] chore: deflake Linux_mokey flutter_engine_group_performance (flutter/flutter#181624) 2026-01-30 [email protected] Roll Dart SDK from 2703fd9733ce to be3ffc51d407 (1 revision) (flutter/flutter#181729) 2026-01-30 [email protected] Ensure content-sizing resize is run on UI thread (flutter/flutter#181686) 2026-01-30 [email protected] [ Tool ] Cleanup `ResidentCompiler` initialization logic (flutter/flutter#181421) 2026-01-30 [email protected] [native assets] Split debug info into `.dsym` files (flutter/flutter#181533) 2026-01-30 [email protected] Roll Skia from 4745eb2fe837 to b62d43b59dd6 (1 revision) (flutter/flutter#181727) 2026-01-30 [email protected] add ccache support for custom toolchain (flutter/flutter#180737) 2026-01-30 [email protected] update GLFW to latest and use EGL context creation on linux (flutter/flutter#181259) 2026-01-30 [email protected] add stacktrace support when requested for host builds (flutter/flutter#181264) If this roll has caused a breakage, revert this CL and stop the roller using the controls here: https://autoroll.skia.org/r/flutter-packages Please CC [email protected],[email protected] on the revert to ensure that a human is aware of the problem. To file a bug in Packages: https://github.com/flutter/flutter/issues/new/choose To report a problem with the AutoRoller itself, please file a bug: https://issues.skia.org/issues/new?component=1389291&template=1850622 Documentation for the AutoRoller is here: https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md
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Add ccache support when building the engine using a custom toolchain. Fixes flutter#180736 ## 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.
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Add ccache support when building the engine using a custom toolchain. Fixes flutter#180736 ## 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.
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Add ccache support when building the engine using a custom toolchain. Fixes flutter#180736 ## 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.
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Add ccache support when building the engine using a custom toolchain.
Fixes #180736
Pre-launch Checklist