47 lines
1.3 KiB
Bash
47 lines
1.3 KiB
Bash
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#!/bin/sh
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die() {
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printf '%s\n' "$*" >&2
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exit 1
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}
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command -v git >/dev/null 2>&1 ||
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die "neither chroot-git nor git could be found!"
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tip="$(git rev-list -1 --parents HEAD)"
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case "$tip" in
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# This is a merge commit, pick last parent
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*" "*" "*) tip="${tip##* }" ;;
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# This is a non-merge commit, pick itself
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*) tip="${tip%% *}" ;;
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esac
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base="$(git merge-base origin/HEAD "$tip")"
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[ $(git rev-list --count "$tip" "^$base") -lt 20 ] || {
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echo "::error title=Branch out of date::Your branch is too out of date. Please rebase on upstream and force-push."
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exit 1
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}
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status=0
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for cmt in $(git rev-list --abbrev-commit $base..$tip)
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do
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git cat-file commit "$cmt" |
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awk -vC="$cmt" '
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# skip header
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/^$/ && !msg { msg = 1; next }
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!msg { next }
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# 3: long-line-is-banned-except-footnote-like-this-for-url
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(NF > 2) && (length > 80) { print "::error title=Commit Lint::" C ": long line: " $0; exit 1 }
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!subject {
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if (length > 50) { print "::warning title=Commit Lint::" C ": subject is a bit long" }
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if (!($0 ~ ":")) { print "::error title=Commit Lint::" C ": subject does not follow CONTRIBUTING.md guidelines"; exit 1 }
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subject = 1; next
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}
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/^$/ { body = 1; next }
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!body { print "::error title=Commit Lint::" C ": second line must be blank"; exit 1 }
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' || status=1
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done
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exit $status
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