[clang] [git-clang-format] Fix: make the tool backward compatible (PR #108721)
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Sat Sep 14 15:28:05 PDT 2024
llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-clang-format
Author: Eden Reich (edenreich)
<details>
<summary>Changes</summary>
## Summary
Currently it's not backward compatible, because the flag -list-ignored doesn't exists on older version of clang-format.
To make this tool still backward compatible, we can first check if the .clang-format-ignore file exists before we run clang-format with the -list-ignored flag.
---
Full diff: https://github.com/llvm/llvm-project/pull/108721.diff
1 Files Affected:
- (modified) clang/tools/clang-format/git-clang-format (+2)
``````````diff
diff --git a/clang/tools/clang-format/git-clang-format b/clang/tools/clang-format/git-clang-format
index bacbd8de245666..997644045c1f25 100755
--- a/clang/tools/clang-format/git-clang-format
+++ b/clang/tools/clang-format/git-clang-format
@@ -402,6 +402,8 @@ def filter_symlinks(dictionary):
def filter_ignored_files(dictionary, binary):
"""Delete every key in `dictionary` that is ignored by clang-format."""
+ if not os.path.exists('.clang-format-ignore'):
+ return
ignored_files = run(binary, '-list-ignored', *dictionary.keys())
if not ignored_files:
return
``````````
</details>
https://github.com/llvm/llvm-project/pull/108721
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