47 lines
1.3 KiB
Plaintext
47 lines
1.3 KiB
Plaintext
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#!/bin/sh
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# Usage: add this file to your project's .git/hooks directory. Rename it to
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# just 'pre-commit'.
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# Now, when you change some files in repository and try to commit these
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# changes, git will run this script right before commit. Cppcheck will scan
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# changed/new files in repository. If it finds some issues, script returns with
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# exit code 1, rejecting commit. Otherwise, script returns 0, and you can
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# actually commit your changes.
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#
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# Example:
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# $ cat hello.c
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# int main() {
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# int *s = malloc(10);
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# }
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# $ git add hello.c
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# $ git commit
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# Checking hello.c...
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# [hello.c:3]: (error) Memory leak: s
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# [hello.c:2]: (error) The allocated size 10 is not a multiple of the underlying type's size.
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#
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# $ vim hello.c
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# $ cat hello.c
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# int main() {
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# }
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# $ git add hello.c
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# $ git commit
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# Checking hello.c...
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# $
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if git rev-parse --verify HEAD >/dev/null 2>&1
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then
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against=HEAD
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else
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# Initial commit: diff against an empty tree object
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against=4b825dc642cb6eb9a060e54bf8d69288fbee4904
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fi
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# We should not pass non-C/C++ files to cppcheck. Filter filenames with pattern.
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pattern='\.(c|cpp|cc|cxx|h|hpp)$'
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changed_files=$(git diff-index --cached --name-only $against | grep -E $pattern)
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if [ -n "$changed_files" ]; then
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cppcheck --error-exitcode=1 $changed_files
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exit $?
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fi
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