CLI tool that checks the build status of current branch on Travis CI

readme.md

Check build status of a project on the command line

Install (copy & paste):

curl -sL https://raw.github.com/gist/1708408/travis.rb > ~/bin/travis-ci \
  && chmod +x ~/bin/travis-ci

gem install hub | tail -2
ruby -e 'require "json"' 2>/dev/null || gem install json

You're in a project's directory. Is the current branch green on Travis CI? Let's find out:

$ travis
origin/master built OK.

To check a branch other than current:

$ travis feature
origin/feature built OK.

The travis command will exit with a non-zero status if the latest build has failed or is still running. This enables you to chain the command like this:

$ travis && rake release

Now if the build has failed, rake release will never happen and this gives you the chance to fix your library before releasing the gem.

travis.rb

#!/usr/bin/env ruby
# Lookup Travis CI build status of the current branch.
# Exit with error status if build in progress or has failed.
#
# Dependenices: json (on ruby 1.8), hub

begin
  require 'rubygems'
  require 'json'
  require 'time'
  require 'net/https'
  require 'uri'
  require 'hub/context'
  require 'hub/ssh_config'
rescue LoadError
  abort $!
end

## helper methods

include Hub::Context

def get(url)
  uri = URI(url)
  http = Net::HTTP.new(uri.host, uri.port)
  http.use_ssl = true
  http.verify_mode = OpenSSL::SSL::VERIFY_PEER
  http.ca_path = '/etc/ssl/certs' if File.exists?('/etc/ssl/certs')

  case response = http.request_get(uri.request_uri)
  when Net::HTTPSuccess then JSON.parse(response.body)
  when Net::HTTPNotFound then abort "error: project not found on Travis"
  else abort "error: Travis API returned status #{response.code}"
  end
end

def to_branch(name)
  name = "refs/heads/#{name}" unless name.include?('/')
  Branch.new(local_repo, name)
end

## figure out current repo state

branch = ARGV[0] ? to_branch(ARGV[0]) : current_branch or abort "no git branch"
project = current_project or abort "git remote not pointing to a GitHub project"
upstream = branch.upstream || to_branch("refs/remotes/#{project.remote}/#{branch.short_name}")
pushed_rev = git_command("rev-parse #{upstream}") or abort "invalid upstream branch: #{upstream}"
upstream_name = upstream.to_s.sub('refs/remotes/', '')

## warn about unpushed commits

if local_commits = git_command("rev-list --cherry #{upstream}...")
  warn "%d commits not yet pushed to %s" % [
    local_commits.split("\n").size,
    upstream_name
  ]
end

## talk to Travis

builds = get('https://travis-ci.org/%s/builds.json' % current_project.name_with_owner)

if build = builds.find {|b| b['commit'] == pushed_rev }
  if build['result']
    if build['result'] == 0
      puts "%s built OK." % upstream_name
    else
      warn "%s build failed." % upstream_name
      exit build['result']
    end
  else
    started_at = Time.parse build['started_at']
    seconds = Time.now - started_at
    abort "build in progress (%d seconds)" % seconds
  end
else
  queue_name = case current_project.owner
  when 'rails', 'spree' then current_project.owner
  else
    conf = '.travis.yml'
    (File.exist?(conf) && File.read(conf) =~ /\blanguage:\s*(\w+)\b/) ?
      (%w[java scala groovy clojure].include?($1) ? 'jvm' : $1) :
      'common'
  end

  # check if build is waiting in the queue
  if queue = get("https://travis-ci.org/jobs.json?state=created&queue=builds.#{queue_name}") and !queue.empty?
    repo_id = builds.any? ? builds.first['repository_id'] :
      get('https://travis-ci.org/%s.json' % current_project.name_with_owner)['id']

    if queue.any? { |b| b['repository_id'] == repo_id }
      abort "builds are waiting in the queue"
    end
  end

  abort "no build for #{upstream_name}"
end