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feat(gh75): extract target branched from pr labels (#112)

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Andrea Lamparelli 2024-03-30 19:19:17 +01:00 • committed by GitHub
parent b2e2e271b9
commit 53cc505f17
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20 changed files with 523 additions and 83 deletions
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39
src/service/configs/pullrequest/pr-configs-parser.ts
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@ -26,7 +26,17 @@ export default class PullRequestConfigsParser extends ConfigsParser {
const folder: string = args.folder ?? this.getDefaultFolder();
const targetBranches: string[] = [...new Set(getAsCommaSeparatedList(args.targetBranch)!)];
let targetBranches: string[] = [];
if (args.targetBranchPattern) {
// parse labels to extract target branch(es)
targetBranches = this.getTargetBranchesFromLabels(args.targetBranchPattern, pr.labels);
if (targetBranches.length === 0) {
throw new Error(`Unable to extract target branches with regular expression "${args.targetBranchPattern}"`);
}
} else {
// target branch must be provided if targetRegExp is missing
targetBranches = [...new Set(getAsCommaSeparatedList(args.targetBranch!)!)];
}
const bpBranchNames: string[] = [...new Set(args.bpBranchName ? (getAsCleanedCommaSeparatedList(args.bpBranchName) ?? []) : [])];
if (bpBranchNames.length > 1 && bpBranchNames.length != targetBranches.length) {
@ -52,6 +62,33 @@ export default class PullRequestConfigsParser extends ConfigsParser {
return "bp";
}
/**
* Parse the provided labels and return a list of target branches
* obtained by applying the provided pattern as regular expression extractor
* @param pattern reg exp pattern to extract target branch from label name
* @param labels list of labels to check
* @returns list of target branches
*/
private getTargetBranchesFromLabels(pattern: string, labels: string[]): string[] {
this.logger.debug(`Extracting branches from [${labels}] using ${pattern}`);
const regExp = new RegExp(pattern);
const branches: string[] = [];
for (const l of labels) {
const result = regExp.exec(l);
if (result?.groups) {
const { target } = result.groups;
if (target){
branches.push(target);
}
}
}
return [...new Set(branches)];
}
/**
* Create a backport pull request starting from the target branch and
* the original pr to be backported