通过gcloud触发特定Git提交构建，能否用Git URL替代本地源码目录？

Hey there, great questions—both of your proposed solutions are totally feasible and will cut down that annoying transfer time significantly. Let’s break down each one step by step:

1. Using Git/GitHub URL Instead of Local Source Directory #

Absolutely, you can skip uploading your local directory entirely by having Cloud Build pull directly from your GitHub repo. Here’s how to set it up:

• Via Cloud Build Triggers:

  • Head to the Google Cloud Console, navigate to Cloud Build > Triggers.
  • Create a new trigger, select "GitHub" as the source (you’ll need to authenticate your GitHub account if you haven’t already).
  • Pick your repository and the branch/tag you want to build from.
  • Configure your build steps (either point to your cloudbuild.yaml or define them directly in the trigger settings).
  • Save the trigger—now every time you push to that branch, Cloud Build will pull the code straight from GitHub, no local upload required.

• Via gcloud Command Line:
  If you prefer running builds manually, use the gcloud builds submit command with your repo URL instead of a local directory path:

  gcloud builds submit --config=cloudbuild.yaml https://github.com/your-username/your-repo.git#main
  

  Replace main with your target branch. For private repos, make sure Cloud Build has access permissions—you can set this up using a service account or a personal access token linked to your GitHub account.

2. Using the Mirrored Google Source Repository #

Even better—since your repo is already mirrored to Google Source Repository (GSR), this is a seamless option because GSR lives on Google’s infrastructure, so Cloud Build can access it ultra-fast. Here’s what to do:

• Set Up a Trigger for GSR:

  • In the Cloud Console, go to Cloud Build > Triggers.
  • Create a new trigger, select "Google Source Repository" as the source.
  • Your mirrored repo should appear in the list (since it’s already synced)—select it.
  • Choose the branch you want to build, then configure your build steps as usual.
  • Save the trigger—now whenever your GSR repo syncs with your original Git repo, Cloud Build will kick off a build automatically, with zero transfer time from your local machine.

• Manual Build via gcloud:
  You can also run a manual build pointing directly to the GSR repo:

  gcloud builds submit --config=cloudbuild.yaml https://source.developers.google.com/p/your-project-id/r/your-mirrored-repo#main
  

  Since it’s a mirrored repo, you don’t have to worry about keeping it up to date—your existing build trigger handles syncing from your original repo automatically.

Pro tip: Whichever option you go with, double-check your cloudbuild.yaml to ensure paths to build scripts and resources match the repo structure (since Cloud Build will be working directly with the repo’s files instead of your local directory).

内容的提问来源于stack exchange，提问作者Saurabh Nanda