Proof-of-concept Travis API v3 command-line client written in Go.

Goals:

• Speed. Go runtime boots extremely fast.
• Portability. Precompiled binaries can be distributed without dependencies.
• Extensibility. Custom travis-<foo> subcommands are usable if in PATH.

Current design:

• Each commands/*.go file registers a subcommand.
• A command generally uses client.Travis() to perform API actions.
• This Travis HTTP client fetches the API manifest once and performs subsequent actions by expanding the URI templates found within.
• Calls to unregistered subcommands are dispatched to travis-<foo> executables in PATH. The following environment is provided: TRAVIS_REPO, TRAVIS_TOKEN.
• The custom travis-<foo> scripts can be implemented in any scripting language and consume the travis api subcommand to dispatch manual API requests.

Current supported inputs:

• Global flags: -r/--repo SLUG, -t/--token TOKEN, --debug.
• If repo slug isn't explicitly provided, git remote configuration is consulted.
• If token isn't explicitly provided, ~/.travis/config.yml is consulted.

Suggested next steps:

• Devise a help system for subcommands.
• Encapsulate error handling such as unrecognized flags or HTTP errors.
• Enable POSTing data via travis api command
• Add optional line-based output from travis api instead of raw JSON
• travis login
• travis status
• travis show
• travis restart