require 'rake/clean'
require 'tempfile'

REPO_ROOT = File.dirname(__FILE__)
BUILD_DIR = File.join(REPO_ROOT, "build")
CLOBBER.include('build')
CLEAN.include("#{BUILD_DIR}/*.deb")

task :package do
    commit = (ENV["GIT_COMMIT"] || `git rev-parse HEAD`).chomp()
    branch = (ENV["GIT_BRANCH"] || `git symbolic-ref -q HEAD`).chomp()
    branch = branch.gsub('refs/heads/', '').gsub('origin/', '').gsub('/', '_')
    build_number = (ENV["BUILD_NUMBER"] || "dev").chomp()

    if branch == "master"
        package_name = "mitx"
    else
        package_name = "mitx-#{branch}"
    end

    FileUtils.mkdir_p(BUILD_DIR)
    
    Dir.chdir(BUILD_DIR) do
        args = ["fakeroot", "fpm", "-s", "dir", "-t", "deb",
            "--exclude=build",
            "--exclude=rakefile",
            "--exclude=.git",
            "--prefix=/opt/wwc/mitx-#{commit}",
            "--depends=python-mysqldb",
            "--depends=python-django",
            "--depends=python-pip",
            "--depends=python-flup",
            "--depends=python-numpy",
            "--depends=python-scipy",
            "--depends=python-matplotlib",
            "--depends=python-libxml2",
            "--depends=python2.7-dev",
            "--depends=libxml2-dev",
            "--depends=libxslt-dev",
            "--depends=python-markdown",
            "--depends=python-pygments",
            "--depends=mysql-client",
            "--name=#{package_name}-#{commit}",
            "--version=0.1",
            "--iteration=#{build_number}",
            "-a", "all",
            "#{REPO_ROOT}"]
        system(*args) || raise("fpm failed to build the .deb")
    end
end