195 lines
7.8 KiB
Bash
Executable file
195 lines
7.8 KiB
Bash
Executable file
#!/usr/bin/env bash
|
|
#
|
|
# This script is meant to run on every new commit to master in CircleCI. If the commit comes from a PR, it will
|
|
# check the PR associated with the commit for labels. If the label matches `docs*` it will be cherry-picked
|
|
# to stable-website. If the label matches `backport/*`, it will be cherry-picked to the appropriate `release/*`
|
|
# branch.
|
|
|
|
# Requires $CIRCLE_PROJECT_USERNAME, $CIRCLE_PROJECT_REPONAME, and $CIRCLE_SHA1 from CircleCI
|
|
|
|
set -o pipefail
|
|
|
|
# colorized status prompt
|
|
function status {
|
|
tput setaf 4
|
|
echo "$@"
|
|
tput sgr0
|
|
}
|
|
|
|
# Returns the latest GitHub "backport/*" label
|
|
function get_latest_backport_label {
|
|
local resp
|
|
local ret
|
|
local latest_backport_label
|
|
|
|
resp=$(curl -f -s -H "Authorization: token ${GITHUB_TOKEN}" "https://api.github.com/repos/${CIRCLE_PROJECT_USERNAME}/${CIRCLE_PROJECT_REPONAME}/labels")
|
|
ret="$?"
|
|
if [[ "$ret" -ne 0 ]]; then
|
|
status "The GitHub API returned $ret which means it was probably rate limited."
|
|
exit $ret
|
|
fi
|
|
|
|
latest_backport_label=$(echo "$resp" | jq -r '.[] | select(.name | startswith("backport/")) | .name' | sort -rV | head -n1)
|
|
echo "$latest_backport_label"
|
|
return 0
|
|
}
|
|
|
|
# This function will do the cherry-picking of a commit on a branch
|
|
# Exit 1 if cherry-picking fails
|
|
function cherry_pick_with_slack_notification {
|
|
# Arguments:
|
|
# $1 - branch to cherry-pick to
|
|
# $2 - commit to cherry-pick
|
|
# $3 - url to PR of commit
|
|
#
|
|
# Return:
|
|
# 0 for success
|
|
# 1 for error
|
|
|
|
local branch="$1"
|
|
local commit="$2"
|
|
local pr_url="$3"
|
|
|
|
git checkout "$branch" || exit 1
|
|
# If git cherry-pick fails, we send a failure notification
|
|
if ! git cherry-pick --mainline 1 "$commit"; then
|
|
status "🍒❌ Cherry pick of commit ${commit:0:7} from $pr_url onto $branch failed!"
|
|
|
|
# send slack notification
|
|
curl -X POST -H 'Content-type: application/json' \
|
|
--data \
|
|
"{ \
|
|
\"attachments\": [ \
|
|
{ \
|
|
\"fallback\": \"Cherry pick failed!\", \
|
|
\"text\": \"🍒❌ Cherry picking of <$pr_url|${commit:0:7}> to \`$branch\` failed!\n\nBuild Log: ${CIRCLE_BUILD_URL}\", \
|
|
\"footer\": \"${CIRCLE_PROJECT_USERNAME}/${CIRCLE_PROJECT_REPONAME}\", \
|
|
\"ts\": \"$(date +%s)\", \
|
|
\"color\": \"danger\" \
|
|
} \
|
|
] \
|
|
}" "${CONSUL_SLACK_WEBHOOK_URL}"
|
|
|
|
# post PR comment to GitHub
|
|
github_message=":cherries::x: Cherry pick of commit ${commit} onto \`$branch\` failed! [Build Log]($CIRCLE_BUILD_URL)"
|
|
pr_id=$(basename ${pr_url})
|
|
curl -f -s -H "Authorization: token ${GITHUB_TOKEN}" \
|
|
-X POST \
|
|
-d "{ \"body\": \"${github_message}\"}" \
|
|
"https://api.github.com/repos/${CIRCLE_PROJECT_USERNAME}/${CIRCLE_PROJECT_REPONAME}/issues/${pr_id}/comments"
|
|
|
|
# run git status to leave error in CircleCI log
|
|
git status
|
|
return 1
|
|
|
|
# Else we send a success notification
|
|
else
|
|
status "🍒✅ Cherry picking of PR commit ${commit:0:7} from ${pr_url} succeeded!"
|
|
# push changes to the specified branch
|
|
git push origin "$branch"
|
|
curl -X POST -H 'Content-type: application/json' \
|
|
--data \
|
|
"{ \
|
|
\"attachments\": [ \
|
|
{ \
|
|
\"fallback\": \"Cherry pick succeeded!\", \
|
|
\"text\": \"🍒✅ Cherry picking of <$pr_url|${commit:0:7}> to \`$branch\` succeeded!\", \
|
|
\"footer\": \"${CIRCLE_PROJECT_USERNAME}/${CIRCLE_PROJECT_REPONAME}\", \
|
|
\"ts\": \"$(date +%s)\", \
|
|
\"color\": \"good\" \
|
|
} \
|
|
] \
|
|
}" "${CONSUL_SLACK_WEBHOOK_URL}"
|
|
|
|
# post PR comment to GitHub
|
|
github_message=":cherries::white_check_mark: Cherry pick of commit ${commit} onto \`$branch\` succeeded!"
|
|
pr_id=$(basename ${pr_url})
|
|
curl -f -s -H "Authorization: token ${GITHUB_TOKEN}" \
|
|
-X POST \
|
|
-d "{ \"body\": \"${github_message}\"}" \
|
|
"https://api.github.com/repos/${CIRCLE_PROJECT_USERNAME}/${CIRCLE_PROJECT_REPONAME}/issues/${pr_id}/comments"
|
|
fi
|
|
|
|
return 0
|
|
}
|
|
|
|
# search for the PR labels applicable to the specified commit
|
|
resp=$(curl -f -s -H "Authorization: token ${GITHUB_TOKEN}" "https://api.github.com/search/issues?q=repo:${CIRCLE_PROJECT_USERNAME}/${CIRCLE_PROJECT_REPONAME}+sha:${CIRCLE_SHA1}")
|
|
ret="$?"
|
|
if [[ "$ret" -ne 0 ]]; then
|
|
status "The GitHub API returned $ret which means it was probably rate limited."
|
|
exit $ret
|
|
fi
|
|
|
|
# get the count from the GitHub API to check if the commit matched a PR
|
|
count=$(echo "$resp" | jq '.total_count')
|
|
if [[ "$count" -eq 0 ]]; then
|
|
status "This commit was not associated with a PR"
|
|
exit 0
|
|
fi
|
|
|
|
# save PR number
|
|
pr_number=$(echo "$resp" | jq '.items[].number')
|
|
|
|
# comment on the PR with the build number to make it easy to re-run the job when
|
|
# cherry-pick labels are added in the future
|
|
github_message=":cherries: If backport labels were added before merging, cherry-picking will start automatically.\n\nTo retroactively trigger a backport after merging, add backport labels and re-run ${CIRCLE_BUILD_URL}."
|
|
curl -f -s -H "Authorization: token ${GITHUB_TOKEN}" \
|
|
-X POST \
|
|
-d "{ \"body\": \"${github_message}\"}" \
|
|
"https://api.github.com/repos/${CIRCLE_PROJECT_USERNAME}/${CIRCLE_PROJECT_REPONAME}/issues/${pr_number}/comments"
|
|
|
|
|
|
|
|
# If the API returned a non-zero count, we have found a PR with that commit so we find
|
|
# the labels from the PR
|
|
|
|
# Sorts the labels from a PR via version sort
|
|
labels=$(echo "$resp" | jq --raw-output '.items[].labels[] | .name' | sort -rV)
|
|
ret="$?"
|
|
pr_url=$(echo "$resp" | jq --raw-output '.items[].pull_request.html_url')
|
|
if [[ "$ret" -ne 0 ]]; then
|
|
status "jq exited with $ret when trying to find label names. Are there labels applied to the PR ($pr_url)?"
|
|
# This can be a valid error but usually this means we do not have any labels so it doesn't signal
|
|
# cherry-picking is possible. Exit 0 for now unless we run into cases where these failures are important.
|
|
exit 0
|
|
fi
|
|
|
|
# Attach label for latest release branch if 'docs-cherrypick' is present. Will noop if already applied.
|
|
latest_backport_label=$(get_latest_backport_label)
|
|
status "latest backport label is $latest_backport_label"
|
|
if echo "$resp" | jq -e '.items[].labels[] | select(.name | contains("docs-cherrypick"))'; then
|
|
labels=$(curl -f -s -H "Authorization: token ${GITHUB_TOKEN}" -X POST -d "{\"labels\":[\"$latest_backport_label\"]}" "https://api.github.com/repos/${CIRCLE_PROJECT_USERNAME}/${CIRCLE_PROJECT_REPONAME}/issues/${pr_number}/labels" | jq --raw-output '.[].name' | sort -rV)
|
|
ret="$?"
|
|
if [[ "$ret" -ne 0 ]]; then
|
|
status "Error applying $latest_backport_label to $pr_url"
|
|
exit $ret
|
|
fi
|
|
fi
|
|
|
|
backport_failures=0
|
|
# loop through all labels on the PR
|
|
for label in $labels; do
|
|
git config --local user.email "hashicorp-ci@users.noreply.github.com"
|
|
git config --local user.name "hashicorp-ci"
|
|
status "checking label: $label"
|
|
# if the label matches docs-cherrypick, it will attempt to cherry-pick to stable-website
|
|
if [[ $label =~ docs-cherrypick ]]; then
|
|
status "backporting to stable-website"
|
|
branch="stable-website"
|
|
cherry_pick_with_slack_notification "$branch" "$CIRCLE_SHA1" "$pr_url"
|
|
backport_failures=$((backport_failures + "$?"))
|
|
# else if the label matches backport/*, it will attempt to cherry-pick to the release branch
|
|
elif [[ $label =~ backport/* ]]; then
|
|
status "backporting to $label"
|
|
branch="${label/backport/release}.x"
|
|
cherry_pick_with_slack_notification "$branch" "$CIRCLE_SHA1" "$pr_url"
|
|
backport_failures=$((backport_failures + "$?"))
|
|
fi
|
|
done
|
|
|
|
if [ "$backport_failures" -ne 0 ]; then
|
|
echo "$backport_failures backports failed"
|
|
exit 1
|
|
fi
|