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29 changes: 25 additions & 4 deletions tools/actions/merge.sh
Original file line number Diff line number Diff line change
Expand Up @@ -6,25 +6,46 @@
# To land a PR with this tool:
# 1. Run `git node land <pr-id-or-url> --fixupAll`
# 2. Copy the hash of the commit at the top of the PR branch.
# 3. Run `tools/actions/merge.sh <pr-id-or-url> <commit-hash>`.
# 3. Run `tools/actions/merge.sh <pr-id-or-url> <commit-hash>` or `tools/actions/merge.sh <url-to-PR-commit>`.

set -xe

pr=$1
commit_head=$2
shift 2 || { echo "Expected two arguments"; exit 1; }

OWNER=nodejs
REPOSITORY=node

if expr "X$pr" : 'Xhttps://github.com/[^/]\{1,\}/[^/]\{1,\}/pull/[0-9]\{1,\}' >/dev/null; then
OWNER="$(echo "$pr" | awk 'BEGIN { FS = "/" } ; { print $4 }')"
REPOSITORY="$(echo "$pr" | awk 'BEGIN { FS = "/" } ; { print $5 }')"
[ -n "$commit_head" ] || commit_head="$(echo "$pr" | awk 'BEGIN { FS = "/" } ; { print $9 }')"
pr="$(echo "$pr" | awk 'BEGIN { FS = "/" } ; { print $7 }')"
elif ! expr "X$pr" : 'X[0-9]\{1,\}' >/dev/null; then
echo "The first argument should be the PR ID or URL"
fi

validation_error=
if ! expr "X${pr}X" : 'X[0-9]\{1,\}X' >/dev/null; then
set +x
echo "Invalid PR ID: $pr"
validation_error=1
fi
if ! expr "X${commit_head}X" : 'X[a-f0-9]\{40\}X' >/dev/null; then
set +x
echo "Invalid PR head: $commit_head"
validation_error=1
fi
[ -z "$validation_error" ] || {
echo 'Usage:'
printf '\t%s <pr-id-or-url> <commit-hash>\n' "$0"
echo 'or:'
printf '\t%s <url-to-PR-commit>\n' "$0"
echo 'Examples:'
printf '\t%s 12345 aaaaabbbbbcccccdddddeeeeefffff1111122222\n' "$0"
printf '\t%s https://github.com/%s/pull/12345 aaaaabbbbbcccccdddddeeeeefffff1111122222\n' "$0" "$OWNER/$REPOSITORY"
printf '\t%s https://github.com/%s/pull/12345/commit/aaaaabbbbbcccccdddddeeeeefffff1111122222\n' "$0" "$OWNER/$REPOSITORY"
exit 1
}

git log -1 HEAD --pretty='format:%B' | git interpret-trailers --parse --no-divider | \
grep -q -x "^PR-URL: https://github.com/$OWNER/$REPOSITORY/pull/$pr$" || {
echo "Invalid PR-URL trailer"
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