145 lines
4.0 KiB
PHP
145 lines
4.0 KiB
PHP
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<?php
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/**
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* Script to automatically assign a milestone to a pull request when it's merged.
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*
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* @package WooCommerce/GithubActions
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*/
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// phpcs:disable WordPress.Security.EscapeOutput.OutputNotEscaped, WordPress.WP.AlternativeFunctions
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global $repo_owner, $repo_name, $github_token, $graphql_api_url;
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/**
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* Grab/process input.
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*/
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$repo_parts = explode( '/', getenv( 'GITHUB_REPOSITORY' ) );
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$repo_owner = $repo_parts[0];
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$repo_name = $repo_parts[1];
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$pr_id = getenv( 'PULL_REQUEST_ID' );
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$github_token = getenv( 'GITHUB_TOKEN' );
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$graphql_api_url = getenv( 'GITHUB_GRAPHQL_URL' );
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/**
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* Select the milestone to be added:
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*
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* 1. Get the first 10 milestones sorted by creation date descending.
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* (we'll never have more than 2 or 3 active milestones but let's get 10 to be sure).
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* 2. Discard those not open or whose title is not a proper version number ("X.Y.Z").
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* 3. Sort descending using version_compare.
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* 4. Get the oldest one that does not have a corresponding "release/X.Y" branch.
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*/
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echo "Getting the list of milestones...\n";
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$query = "
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repository(owner:\"$repo_owner\", name:\"$repo_name\") {
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milestones(first: 10, orderBy: {field: CREATED_AT, direction: DESC}) {
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nodes {
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id
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title
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state
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}
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}
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}
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";
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$json = do_graphql_api_request( $query );
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$milestones = $json['data']['repository']['milestones']['nodes'];
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$milestones = array_map(
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function( $x ) {
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return 'OPEN' === $x['state'] && 1 === preg_match( '/^\d+\.\d+\.\d+$/D', $x['title'] ) ? $x : null;
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},
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$milestones
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);
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$milestones = array_filter( $milestones );
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usort(
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$milestones,
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function( $a, $b ) {
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return version_compare( $b['title'], $a['title'] );
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}
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);
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echo 'Latest open milestone: ' . $milestones[0]['title'] . "\n";
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$chosen_milestone = null;
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foreach ( $milestones as $milestone ) {
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$milestone_title_parts = explode( '.', $milestone['title'] );
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$milestone_release_branch = 'release/' . $milestone_title_parts[0] . '.' . $milestone_title_parts[1];
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$query = "
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repository(owner:\"$repo_owner\", name:\"$repo_name\") {
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ref(qualifiedName: \"refs/heads/$milestone_release_branch\") {
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id
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}
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}
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";
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$result = do_graphql_api_request( $query );
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if ( is_null( $result['data']['repository']['ref'] ) ) {
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$chosen_milestone = $milestone;
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} else {
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break;
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}
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}
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// If all the milestones have a release branch, just take the newest one.
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if ( is_null( $chosen_milestone ) ) {
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$chosen_milestone = $milestones[0];
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}
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echo 'Milestone that will be assigned: ' . $chosen_milestone['title'] . "\n";
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if ( getenv( 'DRY_RUN' ) ) {
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echo "Dry run, skipping the actual milestone assignment\n";
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return;
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}
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/*
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* Assign the milestone to the pull request.
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*/
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echo "Assigning the milestone to the pull request...\n";
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$milestone_id = $chosen_milestone['id'];
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$mutation = "
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updatePullRequest(input: {pullRequestId: \"$pr_id\", milestoneId: \"$milestone_id\"}) {
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clientMutationId
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}
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";
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do_graphql_api_request( $mutation, true );
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/**
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* Function to query the GitHub GraphQL API.
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*
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* @param string $body The GraphQL-formatted request body, without "query" or "mutation" wrapper.
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* @param bool $is_mutation True if the request is a mutation, false if it's a query.
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* @return array The json-decoded response.
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*/
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function do_graphql_api_request( $body, $is_mutation = false ) {
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global $github_token, $graphql_api_url;
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$keyword = $is_mutation ? 'mutation' : 'query';
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$data = array( 'query' => "$keyword { $body }" );
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$context = stream_context_create(
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array(
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'http' => array(
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'method' => 'POST',
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'header' => array(
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'Accept: application/json',
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'Content-Type: application/json',
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'User-Agent: GitHub action to set the milestone for a pull request',
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'Authorization: bearer ' . $github_token,
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),
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'content' => json_encode( $data ),
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),
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)
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);
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$result = file_get_contents( $graphql_api_url, false, $context );
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return json_decode( $result, true );
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}
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// phpcs:enable WordPress.Security.EscapeOutput.OutputNotEscaped, WordPress.WP.AlternativeFunctions
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