Ignore certain branches

[trevor-scheer]

Is it possible to configure the app behavior per repo via .changeset/config.json (or some other way)? If so, it would be nice to filter branches that the bot acts on, i.e. there's no need to leave a comment on renovate/* branches.

[humphd]

This would be great. Looking through the code, I notice that the bot already can read the .changeset/config.json:

https://github.com/changesets/bot/blob/master/get-changed-packages.ts#L72

Given that, it would be cool if you could include a whitelist of branches in the config, then read it out and filter on those names when the bot runs in https://github.com/changesets/bot/blob/master/index.ts#L135?

  app.on(
    ["pull_request.opened", "pull_request.synchronize"],
    async (context) => {
      // Get the target branch (base branch) of the PR
      const targetBranch = context.payload.pull_request.base.ref;
      
      // Get the branches from the config somehow...
      const allowedBranches = ['main', 'develop', 'staging'];
      
      // Check if the target branch is in the allowed list
      if (!allowedBranches.includes(targetBranch)) {
        app.log.info(`Skipping PR for branch ${targetBranch} - not in allowed list`);
        return;
      }

Not sure if this is doable, I haven't worked with probot before, but the code seems to imply it could.