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#!/bin/sh
set -e
revision_range="${1?revision range}"
valid=0
revisions=$(git rev-list --reverse "$revision_range")
total=$(echo $revisions | wc -w)
if [ "$total" -eq 0 ]; then
exit 0
fi
n=0
title=
fail=false
err() {
echo "error [PATCH $n/$total] '$title' $*" >&2
fail=true
}
for rev in $revisions; do
n=$((n + 1))
title=$(git log --format='%s' -1 "$rev")
fail=false
if [ "$(echo "$title" | wc -m)" -gt 72 ]; then
err "title is longer than 72 characters, please make it shorter"
fi
if ! echo "$title" | grep -q '^[a-z0-9,{}/_-]\+: '; then
err "title lacks a topic prefix (e.g. 'imap:')"
fi
author=$(git log --format='%an <%ae>' -1 "$rev")
if ! git log --format="%(trailers:key=Signed-off-by,only,valueonly,unfold)" -1 "$rev" |
grep -qFx "$author"; then
err "'Signed-off-by: $author' trailer is missing"
fi
body=$(git log --format='%b' -1 "$rev")
body=${body%$(git log --format='%(trailers)' -1 "$rev")}
if [ "$(echo "$body" | wc -w)" -lt 3 ]; then
err "body has less than three words, please describe your changes"
fi
if [ "$fail" = true ]; then
continue
fi
echo "ok [PATCH $n/$total] '$title'"
valid=$((valid + 1))
done
echo "$valid/$total valid patches"
if [ "$valid" -ne "$total" ]; then
exit 1
fi
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