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028dad6e87
This should help with getting commit messages tidy before they pass through CI's commit linter :^) For this hook to work pre-commit has to be explicitly installed via: `pre-commit install --hook-type commit-msg`
36 lines
990 B
Bash
Executable File
36 lines
990 B
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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# ignore comment lines
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[[ "$line" =~ ^#.* ]] && continue
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((line_number += 1))
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line_length=${#line}
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category_pattern="^\S.*?: .+"
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if [[ $line_number -eq 1 ]] && (echo "$line" | grep -P -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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if [[ $line_length -gt 72 ]]; then
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error "Commit message lines are too long (maximum allowed is 72 characters)"
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fi
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done <"$commit_file"
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exit 0
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