ontohub/lib/git_repository.rb

	git_repository.rb revision 389ef6f0a2c389ad624dcf0b0e7336e39c3fbec5
5c4c13ac875d79def115ce3d8443d4ec87b3252aJulian Kornberger# Wrapper for access to the local Git repository
b66a6512eb6dea6cf5339eaa857a81d1b89cb4deJulian Kornberger# requires git and git-svn to be installed for the functions clone_git and clone_svn to work
5c4c13ac875d79def115ce3d8443d4ec87b3252aJulian Kornbergerclass GitRepository
b66a6512eb6dea6cf5339eaa857a81d1b89cb4deJulian Kornberger  require 'git_repository/config'
ee5342a8882c2fc7631fcffb5497e6597747887cTim Reddehase
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa  include \
b66a6512eb6dea6cf5339eaa857a81d1b89cb4deJulian Kornberger    Config,
9cfb01db247ca04bb4b5b337bbd77c66b7150e53Julian Kornberger    Cloning,
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa    Files,
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa    GetCommit,
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa    GetObject,
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa    GetDiff,
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa    GetFolderContents,
03dee28977299b4b40210d9b7842bf85c136ab7d=    GetInfoList,
03dee28977299b4b40210d9b7842bf85c136ab7d=    Commit,
5c4c13ac875d79def115ce3d8443d4ec87b3252aJulian Kornberger    History
5c4c13ac875d79def115ce3d8443d4ec87b3252aJulian Kornberger
5c4c13ac875d79def115ce3d8443d4ec87b3252aJulian Kornberger  attr_reader :repo
5c4c13ac875d79def115ce3d8443d4ec87b3252aJulian Kornberger
5c4c13ac875d79def115ce3d8443d4ec87b3252aJulian Kornberger  delegate :path, :empty?, to: :repo
498a5ce047b7c0873d84f6e7f45f3443e5072b70Eugen Kuksa
5c4c13ac875d79def115ce3d8443d4ec87b3252aJulian Kornberger  def initialize(path)
5c4c13ac875d79def115ce3d8443d4ec87b3252aJulian Kornberger    if File.exists?(path)
5c4c13ac875d79def115ce3d8443d4ec87b3252aJulian Kornberger      @repo = Rugged::Repository.new(path)
5c4c13ac875d79def115ce3d8443d4ec87b3252aJulian Kornberger    else
039b6fe97fd37af689c6991e6fceef72bbd617fcEugen Kuksa      FileUtils.mkdir_p(Ontohub::Application.config.git_root)
03dee28977299b4b40210d9b7842bf85c136ab7d=      @repo = Rugged::Repository.init_at(path, true)
03dee28977299b4b40210d9b7842bf85c136ab7d=    end
03dee28977299b4b40210d9b7842bf85c136ab7d=  end
03dee28977299b4b40210d9b7842bf85c136ab7d=
532f6901b468d49af265ef939b52bbc6c8f1ab85Eugen Kuksa  def destroy
532f6901b468d49af265ef939b52bbc6c8f1ab85Eugen Kuksa    FileUtils.rmtree(self.path)
532f6901b468d49af265ef939b52bbc6c8f1ab85Eugen Kuksa  end
532f6901b468d49af265ef939b52bbc6c8f1ab85Eugen Kuksa
82943dcc7f878756736a3f21a8100b389b94ba46Eugen Kuksa  def dir?(path, commit_oid = nil)
82943dcc7f878756736a3f21a8100b389b94ba46Eugen Kuksa    path ||= '/'
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa    if empty?
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa      return false
9f9aab3a5e6a6beca675c7f90f9af56a3636f000Eugen Kuksa    end
9e3e0144c09a30bdb6211168a35dacbf0cb130d8Eugen Kuksa
9e3e0144c09a30bdb6211168a35dacbf0cb130d8Eugen Kuksa    rugged_commit = repo.lookup(commit_oid || head_oid)
9e3e0144c09a30bdb6211168a35dacbf0cb130d8Eugen Kuksa    object = get_object(rugged_commit, path)
9e3e0144c09a30bdb6211168a35dacbf0cb130d8Eugen Kuksa
9f9aab3a5e6a6beca675c7f90f9af56a3636f000Eugen Kuksa    !object.nil? && object.type == :tree
9f9aab3a5e6a6beca675c7f90f9af56a3636f000Eugen Kuksa  end
9f9aab3a5e6a6beca675c7f90f9af56a3636f000Eugen Kuksa
9f9aab3a5e6a6beca675c7f90f9af56a3636f000Eugen Kuksa  def path_exists?(path, commit_oid = nil)
9f9aab3a5e6a6beca675c7f90f9af56a3636f000Eugen Kuksa    rugged_commit = get_commit(commit_oid)
9f9aab3a5e6a6beca675c7f90f9af56a3636f000Eugen Kuksa    if !rugged_commit && path.empty?
f458e516c452c779efc7fc8949edfc2092d3fb82Julian Kornberger      true
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa    else
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa      path_exists_rugged?(rugged_commit, path)
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa    end
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa  end
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa  def paths_starting_with(path, commit_oid = nil)
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa    dir = dir?(path, commit_oid) ? path : path.split('/')[0..-2].join('/')
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa    contents = folder_contents(commit_oid, dir)
f458e516c452c779efc7fc8949edfc2092d3fb82Julian Kornberger
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa    contents.map { |git_file| git_file.path }.
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa      select { |p| p.starts_with?(path) }
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa  end
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa
1b3a30e097b49e2c7a8d09b5d4cf544c1fec299bEugen Kuksa  def get_file(path, commit_oid = nil)
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa    begin
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa      get_file!(path, commit_oid)
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa    rescue GitRepository::PathNotFoundError
8ec575832389c2588f0b5ca1f1dd2cc42d62eb12=      nil
8ec575832389c2588f0b5ca1f1dd2cc42d62eb12=    end
8ec575832389c2588f0b5ca1f1dd2cc42d62eb12=  end
8ec575832389c2588f0b5ca1f1dd2cc42d62eb12=
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa  def get_file!(path, commit_oid = nil)
8ec575832389c2588f0b5ca1f1dd2cc42d62eb12=    path ||= '/'
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa    rugged_commit = get_commit(commit_oid)
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa    raise GitRepository::PathNotFoundError if !rugged_commit && path.empty?
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa    GitFile.new(self, rugged_commit, path)
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa  end
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa
039b6fe97fd37af689c6991e6fceef72bbd617fcEugen Kuksa  def get_path_of_dir(oid = nil, path = nil)
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa    path ||= ''
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa    path = path[0..-2] if(path[-1] == '/')
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa    raise PathNotFoundError.new unless path_exists?(path, oid)
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa    path
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa  end
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa  def self.directory(path)
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa    path.split("/")[0..-2].join("/")
a5a4e2f7ee10435dab96569b4514486f0eee6c09Eugen Kuksa  end
a5a4e2f7ee10435dab96569b4514486f0eee6c09Eugen Kuksa
a5a4e2f7ee10435dab96569b4514486f0eee6c09Eugen Kuksa  # Given a commit oid or a branch name, commit_id returns a hash of oid and
a5a4e2f7ee10435dab96569b4514486f0eee6c09Eugen Kuksa  # branch name if existent.
a5a4e2f7ee10435dab96569b4514486f0eee6c09Eugen Kuksa  def commit_id(ref)
a5a4e2f7ee10435dab96569b4514486f0eee6c09Eugen Kuksa    return {oid: head_oid, branch_name: 'master'} if ref.nil?
a5a4e2f7ee10435dab96569b4514486f0eee6c09Eugen Kuksa    if ref.match(/[0-9a-fA-F]{40}/)
a5a4e2f7ee10435dab96569b4514486f0eee6c09Eugen Kuksa      commit_id_by_oid(ref)
a5a4e2f7ee10435dab96569b4514486f0eee6c09Eugen Kuksa    else
a5a4e2f7ee10435dab96569b4514486f0eee6c09Eugen Kuksa      commit_id_by_branch_name(ref)
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa    end
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa  end
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa  def commit_id_by_oid(oid)
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa    branch_names = branches_by_oid(oid)
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa    {oid: oid, branch_name: branch_names.empty? ? nil : branch_names[0][:name]}
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa  end
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa  def commit_id_by_branch_name(name)
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa    if branch_oid(name).nil?
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa      nil
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa    else
82943dcc7f878756736a3f21a8100b389b94ba46Eugen Kuksa      {oid: branch_oid(name), branch_name: name}
391f72f778a8c9e1cbaed1860f4a4754d6881c8aEugen Kuksa    end
391f72f778a8c9e1cbaed1860f4a4754d6881c8aEugen Kuksa  end
391f72f778a8c9e1cbaed1860f4a4754d6881c8aEugen Kuksa
391f72f778a8c9e1cbaed1860f4a4754d6881c8aEugen Kuksa  def branches_by_oid(oid)
391f72f778a8c9e1cbaed1860f4a4754d6881c8aEugen Kuksa    branches.select { |b| b[:oid] == oid }
82943dcc7f878756736a3f21a8100b389b94ba46Eugen Kuksa  end
82943dcc7f878756736a3f21a8100b389b94ba46Eugen Kuksa
039b6fe97fd37af689c6991e6fceef72bbd617fcEugen Kuksa  def branches
039b6fe97fd37af689c6991e6fceef72bbd617fcEugen Kuksa    repo.refs.map do |ref|
039b6fe97fd37af689c6991e6fceef72bbd617fcEugen Kuksa      {
039b6fe97fd37af689c6991e6fceef72bbd617fcEugen Kuksa        refname: ref.name,
039b6fe97fd37af689c6991e6fceef72bbd617fcEugen Kuksa        name: ref.name.split('/')[-1],
039b6fe97fd37af689c6991e6fceef72bbd617fcEugen Kuksa        commit: ref.target,
039b6fe97fd37af689c6991e6fceef72bbd617fcEugen Kuksa        oid: ref.target.oid,
039b6fe97fd37af689c6991e6fceef72bbd617fcEugen Kuksa      }
1167711784176c2c46f3b69a3530a8aff0d575f7Eugen Kuksa    end
93ff918a7a1656d812f27a767a976ea33da0921fJulian Kornberger  end
1167711784176c2c46f3b69a3530a8aff0d575f7Eugen Kuksa
1167711784176c2c46f3b69a3530a8aff0d575f7Eugen Kuksa  def branch_commit(name)
1167711784176c2c46f3b69a3530a8aff0d575f7Eugen Kuksa    ref = repo.references["refs/heads/#{name}"]
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa
2725ada6b2a776abaadd22b0006097eae9ba2b02Julian Kornberger    if ref.nil?
2725ada6b2a776abaadd22b0006097eae9ba2b02Julian Kornberger      nil
2725ada6b2a776abaadd22b0006097eae9ba2b02Julian Kornberger    else
2725ada6b2a776abaadd22b0006097eae9ba2b02Julian Kornberger      ref.target
2725ada6b2a776abaadd22b0006097eae9ba2b02Julian Kornberger    end
2725ada6b2a776abaadd22b0006097eae9ba2b02Julian Kornberger  end
2725ada6b2a776abaadd22b0006097eae9ba2b02Julian Kornberger
2725ada6b2a776abaadd22b0006097eae9ba2b02Julian Kornberger  def branch_oid(name)
2725ada6b2a776abaadd22b0006097eae9ba2b02Julian Kornberger    if commit = branch_commit(name)
2725ada6b2a776abaadd22b0006097eae9ba2b02Julian Kornberger      commit.oid
2725ada6b2a776abaadd22b0006097eae9ba2b02Julian Kornberger    end
2725ada6b2a776abaadd22b0006097eae9ba2b02Julian Kornberger  end
2725ada6b2a776abaadd22b0006097eae9ba2b02Julian Kornberger
2725ada6b2a776abaadd22b0006097eae9ba2b02Julian Kornberger  def build_target_path(path, file_name)
2725ada6b2a776abaadd22b0006097eae9ba2b02Julian Kornberger    file_path = path.dup
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa    file_path << '/' if file_path[-1] != '/' && !file_path.empty?
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa    file_path << file_name
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa
391f72f778a8c9e1cbaed1860f4a4754d6881c8aEugen Kuksa    file_path
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa  end
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa  def is_head?(commit_oid=nil)
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa    commit_oid.nil? || (!empty? && commit_oid == head_oid)
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa  end
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa  def head_oid
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa    if empty?
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa      nil
1b3a30e097b49e2c7a8d09b5d4cf544c1fec299bEugen Kuksa    else
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa      repo.head.target.oid
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa    end
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa  end
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa  def self.is_repository_with_working_copy?(path)
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa    repo = Rugged::Repository.new(path)
2725ada6b2a776abaadd22b0006097eae9ba2b02Julian Kornberger
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa    !repo.bare?
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa  rescue Rugged::RepositoryError
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa    false
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa  end
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa  def self.is_bare_repository?(path)
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa    Rugged::Repository.new(path).bare?
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa  rescue Rugged::RepositoryError
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa    false
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa  end
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa  def self.mime_type_editable?(mime_type)
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa    mime_type.to_s == 'application/xml' || mime_type.to_s.match(/^text\/.*/)
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa  end
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa
a2b3d5bb602a9a0d970b6640948f1d7d75ce78bfEugen Kuksa  def self.mime_info(filename)
    ext = File.extname(filename)[1..-1]
    mime_type = Mime::Type.lookup_by_extension(ext) || Mime::TEXT
    mime_category = mime_type.to_s.split('/')[0]

    {
      mime_type: mime_type,
      mime_category: mime_category
    }
  end

  protected

  def path_exists_rugged?(rugged_commit, path = '/')
    path.empty? || !get_object(rugged_commit, path).nil?
  rescue Rugged::OdbError
    false
  end

  def head
    repo.lookup(head_oid)
  end
end