RStudio Platform Go Libraries

Overview

This repo includes useful Go code for building applications.

Go Directories

/internal

Private application and library code. This is for code we don't want others importing in their applications or libraries. Note that this layout pattern is enforced by the Go compiler itself. See the Go 1.4 release notes for more details. Note that you are not limited to the top level internal directory. You can have more than one internal directory at any level of your project tree.

You can optionally add a bit of extra structure to your internal packages to separate your shared and non-shared internal code. It's not required (especially for smaller projects), but it's nice to have visual clues showing the intended package use. Your actual application code can go in the /internal/app directory (e.g., /internal/app/myapp) and the code shared by those apps in the /internal/pkg directory (e.g., /internal/pkg/myprivlib).

/pkg

Shared library code for use by external applications (e.g., /pkg/rslog). Other projects can import these libraries expecting them to work.

/examples

Example applications that demonstrate using the shared libraries.

Common Application Directories

/scripts

Scripts to perform various build, install, linting, and documentation tasks.

These scripts keep the root level justfile small and simple (e.g., https://github.com/hashicorp/terraform/blob/master/Makefile).

Other Directories

/docs

Design and user documents (in addition to your godoc generated documentation).

Tooling

We use just to run project specific commands. See the GitHub repository for installation and examples.

You will also need Docker if you wish to run the integration and end-to-end tests.

Testing

We test multiple modules by default. Therefore, if you wish to test a specific package, you must specify the MODULE env variable. See the examples below.

Examples:

# Run all Go tests
just test

# Run all Go tests twice
just test -count 2 ./...

# Run all tests once (no cached results)
just test -count 1 ./...

# Run with verbose output
just test -v ./...

# Run the "TestNewDebugLog" test twice with verbose output
MODULE=pkg/rslog just test -v -count 2 github.com/rstudio/platform-lib/pkg/rslog/debug -testify.m=TestNewDebugLog

# Run the LocalNotifySuite suite tests with verbose output
MODULE=pkg/rsnotify just test -v github.com/rstudio/platform-lib/pkg/rsnotify/locallistener -check.f=LocalNotifySuite

# Run the PgxNotifySuite suite tests with docker-compose
MODULE=pkg/rsnotify just test-integration -v github.com/rstudio/platform-lib/pkg/rsnotify/pgxlistener -check.f=PgxNotifySuite

Testing with Docker

The integration tests are run with Docker.

Examples:

# Run the integration tests (uses docker-compose)
just test-integration

Licenses

To update NOTICE.md with a list of licenses from third-party Go modules, use the just licenses target. This requires Python 3.

Versioning

Follow semantic versioning guidelines. To release a new version, we simply create and push a tag.

git tag v0.1.2
git push origin v0.1.2

The rslog package is versioned separately. To release a new rslog version:

git tag pkg/rslog/v1.6.1
git push origin pkg/rslog/v1.6.1

Badges

• Go Report Card - It will scan your code with gofmt, go vet, gocyclo, golint, ineffassign, license and misspell. Replace github.com/golang-standards/project-layout with your project reference.

  

• Pkg.go.dev - Pkg.go.dev is a new destination for Go discovery & docs. You can create a badge using the badge generation tool.

  

• Release - It will show the latest release number for your project. Change the github link to point to your project.