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49 lines
1.5 KiB
49 lines
1.5 KiB
3 years ago
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#!/usr/bin/env bash
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# Copyright (c) 2020 The Bitcoin Core developers
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# Distributed under the MIT software license, see the accompanying
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# file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#
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# Linter to check that commit messages have a new line before the body
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# or no body at all
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export LC_ALL=C
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EXIT_CODE=0
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while getopts "?" opt; do
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case $opt in
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?)
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echo "Usage: $0 [N]"
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echo " COMMIT_RANGE='<commit range>' $0"
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echo " $0 -?"
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echo "Checks unmerged commits, the previous N commits, or a commit range."
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echo "COMMIT_RANGE='47ba2c3...ee50c9e' $0"
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exit ${EXIT_CODE}
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;;
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esac
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done
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if [ -z "${COMMIT_RANGE}" ]; then
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if [ -n "$1" ]; then
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COMMIT_RANGE="HEAD~$1...HEAD"
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else
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# This assumes that the target branch of the pull request will be master.
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MERGE_BASE=$(git merge-base HEAD master)
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COMMIT_RANGE="$MERGE_BASE..HEAD"
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fi
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fi
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while IFS= read -r commit_hash || [[ -n "$commit_hash" ]]; do
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n_line=0
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while IFS= read -r line || [[ -n "$line" ]]; do
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n_line=$((n_line+1))
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length=${#line}
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if [ $n_line -eq 2 ] && [ $length -ne 0 ]; then
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echo "The subject line of commit hash ${commit_hash} is followed by a non-empty line. Subject lines should always be followed by a blank line."
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EXIT_CODE=1
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fi
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done < <(git log --format=%B -n 1 "$commit_hash")
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done < <(git log "${COMMIT_RANGE}" --format=%H)
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exit ${EXIT_CODE}
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