59 lines
1.6 KiB
Bash
Executable file
59 lines
1.6 KiB
Bash
Executable file
#!/bin/bash
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#
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# A git hook script to find and fix trailing whitespace
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# in your commits. Bypass it with the --no-verify option
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# to git-commit
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#
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# Copyright Oldman <imoldman.com@gmail.com> and contributors:
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# https://github.com/imoldman/config
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#
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# Add this to a project's pre-hooks using:
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# git rev-parse --show-toplevel
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# ln -s ../../scripts/git-prehook-whitespace.sh .git/hooks/pre-commit
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set -euo pipefail
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# detect platform
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platform="win"
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uname_result="$(uname)"
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if [ "$uname_result" = "Linux" ]; then
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platform="linux"
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elif [ "$uname_result" = "Darwin" ]; then
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platform="mac"
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fi
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# change IFS to ignore filename's space in |for|
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IFS="
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"
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# autoremove trailing whitespace
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for line in $(git diff --check --cached | sed '/^[+-]/d') ; do
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# get file name
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if [ "$platform" = "mac" ]; then
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file="$(echo "$line" | sed -E 's/:[0-9]+: .*//')"
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else
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file="$(echo "$line" | sed -r 's/:[0-9]+: .*//')"
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fi
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# display tips
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echo -e "auto remove trailing whitespace in \\033[31m$file\\033[0m!"
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# since $file in working directory isn't always equal to $file in index, so we backup it
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mv -f "$file" "${file}.save"
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# discard changes in working directory
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git checkout -- "$file"
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# remove trailing whitespace
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if [ "$platform" = "win" ]; then
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# sed in msys 1.x does not support -i
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sed 's/[[:space:]]*$//' "$file" > "${file}.bak"
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mv -f "${file}.bak" "$file"
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elif [ "$platform" == "mac" ]; then
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sed -i "" 's/[[:space:]]*$//' "$file"
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else
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sed -i 's/[[:space:]]*$//' "$file"
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fi
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git add "$file"
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# restore the $file
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sed 's/[[:space:]]*$//' "${file}.save" > "$file"
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rm "${file}.save"
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done
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# Now we can commit
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exit
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