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64 lines
1.4 KiB
Bash
Executable File
64 lines
1.4 KiB
Bash
Executable File
#!/bin/sh
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#
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# This pre-commit hook checks if any versions of clang-format
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# are installed, and if so, uses the installed version to format
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# the staged changes.
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#
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# To install, copy this script to `.git/hooks/pre-commit`:
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# cd .git/hooks && ln -s ../../tools/clang-format_precommit_hook pre-commit
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# and make sure that `clang-format` is installed on your system
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maj_min=1
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maj_max=8
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base=clang-format
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format=""
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# Redirect output to stderr.
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exec 1>&2
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# check if clang-format is installed
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type "$base" >/dev/null 2>&1 && format="$base"
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# if not, check all possible versions
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# (i.e. clang-format-<$maj_min-$maj_max>-<0-9>)
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if [ -z "$format" ]
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then
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for j in `seq $maj_max -1 $maj_min`
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do
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for i in `seq 0 9`
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do
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type "$base-$j.$i" >/dev/null 2>&1 && format="$base-$j.$i" && break
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done
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[ -z "$format" ] || break
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done
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fi
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# no versions of clang-format are installed
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if [ -z "$format" ]
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then
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echo "$base is not installed. Pre-commit hook will not be executed."
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exit 0
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fi
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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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# do the formatting
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for file in `git diff-index --cached --name-only $against`
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do
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case "$file" in
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*.h | *.hpp | *.c | *.cpp )
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"$format" -i "$file"
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;;
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*)
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# do nothing with file
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;;
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esac
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done
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