mirror of
https://github.com/RGBCube/serenity
synced 2025-10-31 22:22:45 +00:00
66 lines
2.1 KiB
Bash
Executable file
66 lines
2.1 KiB
Bash
Executable file
#!/usr/bin/env bash
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# the file containing the commit message is passed as the first argument
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commit_file="$1"
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commit_message=$(cat "$commit_file")
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error() {
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echo -e "\033[0;31m$1:\033[0m"
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echo "$commit_message"
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exit 1
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}
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# fail if the commit message contains windows style line breaks (carriage returns)
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if grep -q -U $'\x0D' "$commit_file"; then
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error "Commit message contains CRLF line breaks (only unix-style LF linebreaks are allowed)"
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fi
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line_number=0
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while read -r line; do
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# break on git cut line, used by git commit --verbose
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if [[ "$line" == "# ------------------------ >8 ------------------------" ]]; then
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break
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fi
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# ignore comment lines
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[[ "$line" =~ ^#.* ]] && continue
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# ignore overlong 'fixup!' commit descriptions
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[[ "$line" =~ ^fixup!\ .* ]] && continue
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((line_number += 1))
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line_length=${#line}
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if [[ $line_number -eq 2 ]] && [[ $line_length -ne 0 ]]; then
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error "Empty line between commit title and body is missing"
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fi
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merge_commit_pattern="^Merge branch"
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if [[ $line_number -eq 1 ]] && (echo "$line" | grep -E -q "$merge_commit_pattern"); then
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error "Commit is a git merge commit, use the rebase command instead"
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fi
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category_pattern='^(Revert "|\S+: )'
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if [[ $line_number -eq 1 ]] && (echo "$line" | grep -E -v -q "$category_pattern"); then
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error "Missing category in commit title (if this is a fix up of a previous commit, it should be squashed)"
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fi
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title_case_pattern="^\S.*?: [A-Z0-9]"
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if [[ $line_number -eq 1 ]] && (echo "$line" | grep -E -v -q "$title_case_pattern"); then
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error "First word of commit after the subsystem is not capitalized"
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fi
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if [[ $line_number -eq 1 ]] && [[ "$line" =~ \.$ ]]; then
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error "Commit title ends in a period"
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fi
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url_pattern="([a-z]+:\/\/)?(([a-zA-Z0-9_]|-)+\.)+[a-z]{2,}(:\d+)?([a-zA-Z_0-9@:%\+.~\?&\/=]|-)+"
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if [[ $line_length -gt 72 ]] && (echo "$line" | grep -E -v -q "$url_pattern"); then
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error "Commit message lines are too long (maximum allowed is 72 characters)"
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fi
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if [[ "$line" == "Signed-off-by: "* ]]; then
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error "Commit body contains a Signed-off-by tag"
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fi
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done <"$commit_file"
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exit 0
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