feat: add configurable base branch for Version PRs

- Add version-pr-base input to allow targeting non-default branches
- Falls back to repository default branch if not specified
- Useful for monorepos or projects using develop/next branches

Fixes: Version PR always targeted default branch with no override

Author: omermorad

action.yml

@@ -32,6 +32,9 @@ inputs:
     description: 'Branch name for Version Contracts PR'
     required: false
     default: 'contractual/version-contracts'
+  version-pr-base:
+    description: 'Base branch for Version Contracts PR (defaults to repository default branch)'
+    required: false
   pre-release-tag:
     description: 'Pre-release tag (e.g., "alpha", "beta", "rc") - creates versions like 2.0.0-beta.0'
     required: false

dist/index.js

@@ -130424,7 +130424,7 @@ function hasStagedChanges() {
 __name(hasStagedChanges, "hasStagedChanges");
 async function createOrUpdateVersionPR(octokit, context3, options) {
   const { owner, repo } = context3.repo;
-  const baseBranch = getDefaultBranch(context3);
+  const baseBranch = options.baseBranch || getDefaultBranch(context3);
   core3.debug(`Base branch: ${baseBranch}, Version branch: ${options.branch}`);
   await ensureBranchExists(octokit, owner, repo, options.branch, baseBranch);
   git2(`fetch origin ${options.branch}`);
@@ -131525,7 +131525,8 @@ async function handleVersioning(octokit, context3, config, changesets, inputs) {
     const prUrl = await createOrUpdateVersionPR(octokit, context3, {
       branch: inputs.versionPrBranch,
       title: inputs.versionPrTitle,
-      body: prBody
+      body: prBody,
+      baseBranch: inputs.versionPrBase
     });
     core5.setOutput("version-pr-url", prUrl);
     core5.info(`Version Contracts PR: ${prUrl}`);
@@ -131703,6 +131704,7 @@ function getInputs() {
     autoChangeset: core6.getInput("auto-changeset") === "true",
     versionPrTitle: core6.getInput("version-pr-title") || "Version Contracts",
     versionPrBranch: core6.getInput("version-pr-branch") || "contractual/version-contracts",
+    versionPrBase: core6.getInput("version-pr-base") || void 0,
     preReleaseTag: core6.getInput("pre-release-tag") || void 0,
     createReleases: core6.getInput("create-releases") !== "false",
     tagPrefix: tagPrefixInput,

dist/index.js.map

@@ -46,7 +46,7 @@ export async function createOrUpdateVersionPR(
   options: VersionPROptions
 ): Promise<string> {
   const { owner, repo } = context.repo;
-  const baseBranch = getDefaultBranch(context);
+  const baseBranch = options.baseBranch || getDefaultBranch(context);
 
   core.debug(`Base branch: ${baseBranch}, Version branch: ${options.branch}`);
 

src/github/pull-requests.ts

@@ -32,6 +32,7 @@ function getInputs(): ActionInputs {
     autoChangeset: core.getInput('auto-changeset') === 'true',
     versionPrTitle: core.getInput('version-pr-title') || 'Version Contracts',
     versionPrBranch: core.getInput('version-pr-branch') || 'contractual/version-contracts',
+    versionPrBase: core.getInput('version-pr-base') || undefined,
     preReleaseTag: core.getInput('pre-release-tag') || undefined,
     createReleases: core.getInput('create-releases') !== 'false',
     tagPrefix: tagPrefixInput as TagPrefix,

src/main.ts

@@ -166,6 +166,7 @@ async function handleVersioning(
       branch: inputs.versionPrBranch,
       title: inputs.versionPrTitle,
       body: prBody,
+      baseBranch: inputs.versionPrBase,
     });
 
     core.setOutput('version-pr-url', prUrl);

src/modes/release.ts

@@ -74,6 +74,8 @@ export interface VersionPROptions {
   title: string;
   /** PR body markdown */
   body: string;
+  /** Base branch to target (optional, defaults to repository default branch) */
+  baseBranch?: string;
 }
 
 /**
@@ -102,6 +104,7 @@ export interface ActionInputs {
   autoChangeset: boolean;
   versionPrTitle: string;
   versionPrBranch: string;
+  versionPrBase?: string;
   preReleaseTag?: string;
   createReleases: boolean;
   tagPrefix: TagPrefix;