# This file contains various tasks usefull for Smalltalk/X jv-branch 

# development. Currently it only supports working with Mercurial repositories,

# Honestly, there's not much one can do with CVS, we're using it only for

# packages that have not been converted to Mercurial. 

namespace :'workflow' do

  # A helper function to :push-upstream and push-staging tasks

  def hg_repositories()     

    project.packages_and_application.each do | pkg |

      if not pkg.nested_package? then

        repo = Rake::Stx::Configuration::Repository::find(pkg.repository)

        if repo.type == :'hg' then

          hg = HG::Repository.new(BUILD_DIR / pkg.directory)          

        end

      end

    end    

  end

  def push(remote, user, pass, review_only, push_bookmark)  

      opts = {

        :user => user,

        :pass => pass,

      }   

      paths = hg.paths

      if remote == 'upstream' 

        if not paths['upstream'] then

          remote = 'canonical'

        end

      elsif remote == 'staging'

        if not paths['staging'] then

          puts ""

          puts "!! repository #{hg.path} has not staging repository defined - skipping !!"

          puts ""  

          return

        end

      end

      if review_only then

        opts[:rev] = '.'

        remote_url = hg.paths[remote] || remote

        bookmark = hg.bookmark()

        puts ""

        puts "== changes going to #{remote_url} =="

        puts ""

        hg.outgoing(remote, **opts)

        puts ""

        if push_bookmark and bookmark then

          puts "Will update bookmark '#{bookmark}"

        end

        puts "===================================="

        puts ""

      else

        if push_bookmark && bookmark then

          opts[:bookmarks] = ['.']

        else

          opts[:rev] = '.'

        end        

        hg.push(remote, **opts)

      end

    end

  end

  desc "Display changes to be pushed to upstream repositores (use it to review what workflow:push-upstream would do)"

  task :'out-upstream', :user, :pass do | t, args |

    push('upstream', args[:user], args[:pass], true, false)

  end

  task :'out-upstream' => :'setup'

  desc "Push currently checked out revisions to upstream repositories (to be called after all tests pass on all configurations)"

  task :'push-upstream', :user, :pass do | t, args |

    push('upstream', args[:user], args[:pass], false, false)

  end

  task :'push-upstream' => :'setup'

  desc "Display changes to be pushed to staging repositores (use it to review what workflow:push-staging would do)"

  task :'out-staging', :user, :pass do | t, args |

    push('staging', args[:user], args[:pass], true, true)

  end

  task :'out-staging' => :'setup'

  desc "Push currently checked out revisions to staging repositories (to be by developer to test her changes)"

  task :'push-staging', :user, :pass do | t, args |

    push('staging', args[:user], args[:pass], false, true)

  end

  task :'push-staging' => :'setup'

  desc "(Auto)merge changes (from eXept)"

  task :'merge' => :'setup' do

    if not which("hg-automerge.rb") then

      info "Cannot find 'hg-automerge.rb' in PATH"

      info "You may find it at https://bitbucket.org/janvrany/jv-scripts"

      error "Cannot find 'hg-automerge.rb' in PATH"

    end    

    hg_repositories_failed_to_merge = []

      if File.exist? (hg.path / '.hgautomerge') then

        info "Merging #{hg.path}"

        sh "hg-automerge.rb --cwd #{hg.path}"

      else 

        info "Not merging #{hg.path} - no merge config found."

        info "To configure run: 'hg-automerge.rb --cwd #{hg.path} --config'"

      end

    end

  end

end