VCS App

A library to create apps for version control platforms, specifically to automate pull request creation.

Examples

• CID Workflow App
• PrimeLib Generator App

Usage

Create Tasks

type WorkflowTask struct {
}

// Name returns the name of the task
func (n WorkflowTask) Name() string {
    return "cid-workflow-update"
}

// Execute runs the task
func (n WorkflowTask) Execute(ctx taskcommon.TaskContext) error {
    helper := simpletask.New(ctx)

    // clone repository
    err := helper.Clone()
    if err != nil {
        return fmt.Errorf("failed to clone repository: %w", err)
    }

    // create and checkout new branch
    err = helper.CreateBranch("chore/my-branch-name")
    if err != nil {
        return fmt.Errorf("failed to create branch: %w", err)
    }

    // TODO: make file modifications here (in ctx.Directory, temp dir with a clean clone of the repository for every task)

    // commit, push and create merge request
    err = helper.CommitPushAndMergeRequest("chore: my change", "chore: my change", "my-description", "unique-key-to-prevent-duplicates")
    if err != nil {
        return fmt.Errorf("failed to commit push and create or update merge request: %w", err)
    }

    return nil
}

Execute Tasks

// platform
platform, err := vcsapp.GetPlatformFromEnvironment() // automatically configures the platform from environment variables, see below for details

// execute
err = vcsapp.ExecuteTasks(platform, []taskcommon.Task{
    WorkflowTask{},
})

Configuration

You are required to have the environment variables for one platform set.

GitHub App

Create a private key and store it in a file.

Environment Variable	Description
GITHUB_APP_ID	The ID of the GitHub App.
GITHUB_APP_PRIVATE_KEY_FILE	The path to the private key file.

GitLab User

Create a GitLab user and generate a personal access token with the following permissions:

• api

Environment Variable	Description
GITLAB_SERVER	The GitLab server URL.
GITLAB_ACCESS_TOKEN	The personal access token.

License

Released under the MIT license.