do

go do (dev ops)

Go tool for dev ops: init, build, lint, test, deploy apps.

# install direnv to automatically manage PATH for your app
brew install direnv

# get the tool and init in your go project
go get -tool github.com/housecat-inc/do
go tool do init --allow

# use the `go do` shorthand for common operations
go do
 → go mod tidy
 → go generate ./...
 → go build ./...
 → go vet ./...
 → go do lint ./...
 → go test ./...

go do deploy

Adding lint rules

Run go do lint to verify code standards are met and go do lint --list to display code standards.

To enforce standards we prefer software tools that tell you exactly what standards are not met and where. The multichecker package provides a way to build this.

Contrast this approach to documenting standards in README.md / AGENTS.md / CLAUDE.md, which leaves both developers and LLMs room to interpret and forget. A better agentic approach is to tell Claude to write code:

Write an analysis package that enforces "use github.com/pkg/errors everywhere"

⏺ I'll explore to understand analysis packages, then create one that enforces the use of the errors packages. ⏺ Now I'll create the analyzer that will flag direct use of err

Dev

Run go do dev to live reload your cmd/app program. It should look for PORT env var and use that if set, but default to port 8080 for deploy via Cloud Run.

CI

Run go do ci to create a GitHub CI workflow. The workflow runs go do on all pushes and PRs.

When CI=true is set, go do automatically:

• Drops local replace directives from go.mod (e.g. replace foo => ../local)
• Installs tool dependencies from go.mod tool directives
• Runs go generate ./... before build

This means your CI workflow is simply:

- name: Build and Test
  run: go tool do

To enable preview deploys on PRs and production deploys on merge to main:

# First deploy locally to configure .envrc
go do deploy

# Set up GCP Workload Identity Federation
go do ci --setup

This configures:

• Workload Identity Pool and OIDC provider for GitHub Actions
• Service account with Cloud Run, Storage, and Artifact Registry permissions
• Prints the GitHub repository variables to configure

Add the printed variables to your repo: Settings > Secrets and variables > Actions > Variables tab.

Deploy

Run go do deploy to deploy you program. It will prompt for Google Cloud settings on first run. Run go do logs and go do status to inspect deployments.

# install dependencies to manage Google Cloud
brew install gcloud-cli ko