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#!/usr/bin/env ruby

require 'fileutils'

require_relative 'go_build'
include GoBuild

def main(dependency)
  # Govendor wants to run in a GOPATH so let's make one for it.
  create_fresh_build_dir
  run!(GO_ENV, %w[go get github.com/kardianos/govendor])

  gitlab_shell_build_go_dir = File.join(BUILD_DIR, 'src', GO_PACKAGE)
  run!(GO_ENV, %W[govendor fetch #{dependency}], chdir: gitlab_shell_build_go_dir)

  # Now we have updated go/vendor in the temporary build dir. We must sync
  # the changes back so that Git will see them.
  FileUtils.rm_rf('go/vendor')
  FileUtils.cp_r(File.join(gitlab_shell_build_go_dir, 'vendor'), 'go')
end

unless ARGV.count == 1
  abort "usage: #{$PROGRAM_NAME} DEPENDENCY"
end

main(ARGV.first)