Class: Redmine::Scm::Adapters::GitAdapter

Inherits:
AbstractAdapter show all
Defined in:
lib/redmine/scm/adapters/git_adapter.rb

Defined Under Namespace

Classes: GitBranch, Revision

Constant Summary collapse

GIT_BIN =

Git executable name

Redmine::Configuration['scm_git_command'] || "git"

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from AbstractAdapter

#adapter_name, client_version_above?, client_version_string, #properties, #root_url, shell_quote, #shell_quote, shell_quote_command, #supports_annotate?, #supports_cat?, #url, #with_leading_slash, #with_trailling_slash, #without_leading_slash, #without_trailling_slash

Constructor Details

#initialize(url, root_url = nil, login = nil, password = nil, path_encoding = nil) ⇒ GitAdapter

Returns a new instance of GitAdapter.


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# File 'lib/redmine/scm/adapters/git_adapter.rb', line 61

def initialize(url, root_url=nil, =nil, password=nil, path_encoding=nil)
  super
  @path_encoding = path_encoding.blank? ? 'UTF-8' : path_encoding
end

Class Method Details

.client_availableObject


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# File 'lib/redmine/scm/adapters/git_adapter.rb', line 45

def client_available
  !client_version.empty?
end

.client_commandObject


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# File 'lib/redmine/scm/adapters/git_adapter.rb', line 33

def client_command
  @@bin    ||= GIT_BIN
end

.client_versionObject


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# File 'lib/redmine/scm/adapters/git_adapter.rb', line 41

def client_version
  @@client_version ||= (scm_command_version || [])
end

.scm_command_versionObject


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# File 'lib/redmine/scm/adapters/git_adapter.rb', line 49

def scm_command_version
  scm_version = scm_version_from_command_line.dup.force_encoding('ASCII-8BIT')
  if m = scm_version.match(%r{\A(.*?)((\d+\.)+\d+)})
    m[2].scan(%r{\d+}).collect(&:to_i)
  end
end

.scm_version_from_command_lineObject


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# File 'lib/redmine/scm/adapters/git_adapter.rb', line 56

def scm_version_from_command_line
  shellout("#{sq_bin} --version --no-color") { |io| io.read }.to_s
end

.sq_binObject


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# File 'lib/redmine/scm/adapters/git_adapter.rb', line 37

def sq_bin
  @@sq_bin ||= shell_quote_command
end

Instance Method Details

#annotate(path, identifier = nil) ⇒ Object


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# File 'lib/redmine/scm/adapters/git_adapter.rb', line 328

def annotate(path, identifier=nil)
  identifier = 'HEAD' if identifier.blank?
  cmd_args = %w|blame --encoding=UTF-8|
  cmd_args << "-p" << identifier << "--" <<  scm_iconv(@path_encoding, 'UTF-8', path)
  blame = Annotate.new
  content = nil
  git_cmd(cmd_args) { |io| io.binmode; content = io.read }
  # git annotates binary files
  return nil if content.is_binary_data?
  identifier = ''
  # git shows commit author on the first occurrence only
  authors_by_commit = {}
  content.split("\n").each do |line|
    if line =~ /^([0-9a-f]{39,40})\s.*/
      identifier = $1
    elsif line =~ /^author (.+)/
      authors_by_commit[identifier] = $1.strip
    elsif line =~ /^\t(.*)/
      blame.add_line($1, Revision.new(
                            :identifier => identifier,
                            :revision   => identifier,
                            :scmid      => identifier,
                            :author     => authors_by_commit[identifier]
                            ))
      identifier = ''
      author = ''
    end
  end
  blame
rescue ScmCommandAborted
  nil
end

#branchesObject


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# File 'lib/redmine/scm/adapters/git_adapter.rb', line 78

def branches
  return @branches if @branches
  @branches = []
  cmd_args = %w|branch --no-color --verbose --no-abbrev|
  git_cmd(cmd_args) do |io|
    io.each_line do |line|
      branch_rev = line.match('\s*(\*?)\s*(.*?)\s*([0-9a-f]{40}).*$')
      bran = GitBranch.new(branch_rev[2])
      bran.revision =  branch_rev[3]
      bran.scmid    =  branch_rev[3]
      bran.is_default = ( branch_rev[1] == '*' )
      @branches << bran
    end
  end
  @branches.sort!
rescue ScmCommandAborted
  nil
end

#cat(path, identifier = nil) ⇒ Object


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# File 'lib/redmine/scm/adapters/git_adapter.rb', line 361

def cat(path, identifier=nil)
  if identifier.nil?
    identifier = 'HEAD'
  end
  cmd_args = %w|show --no-color|
  cmd_args << "#{identifier}:#{scm_iconv(@path_encoding, 'UTF-8', path)}"
  cat = nil
  git_cmd(cmd_args) do |io|
    io.binmode
    cat = io.read
  end
  cat
rescue ScmCommandAborted
  nil
end

#default_branchObject


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# File 'lib/redmine/scm/adapters/git_adapter.rb', line 107

def default_branch
  bras = self.branches
  return nil if bras.nil?
  default_bras = bras.select{|x| x.is_default == true}
  return default_bras.first.to_s if ! default_bras.empty?
  master_bras = bras.select{|x| x.to_s == 'master'}
  master_bras.empty? ? bras.first.to_s : 'master' 
end

#diff(path, identifier_from, identifier_to = nil) ⇒ Object


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# File 'lib/redmine/scm/adapters/git_adapter.rb', line 308

def diff(path, identifier_from, identifier_to=nil)
  path ||= ''
  cmd_args = []
  if identifier_to
    cmd_args << "diff" << "--no-color" <<  identifier_to << identifier_from
  else
    cmd_args << "show" << "--no-color" << identifier_from
  end
  cmd_args << "--" <<  scm_iconv(@path_encoding, 'UTF-8', path) unless path.empty?
  diff = []
  git_cmd(cmd_args) do |io|
    io.each_line do |line|
      diff << line
    end
  end
  diff
rescue ScmCommandAborted
  nil
end

#entries(path = nil, identifier = nil, options = {}) ⇒ Object


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# File 'lib/redmine/scm/adapters/git_adapter.rb', line 131

def entries(path=nil, identifier=nil, options={})
  path ||= ''
  p = scm_iconv(@path_encoding, 'UTF-8', path)
  entries = Entries.new
  cmd_args = %w|ls-tree -l|
  cmd_args << "HEAD:#{p}"          if identifier.nil?
  cmd_args << "#{identifier}:#{p}" if identifier
  git_cmd(cmd_args) do |io|
    io.each_line do |line|
      e = line.chomp.to_s
      if e =~ /^\d+\s+(\w+)\s+([0-9a-f]{40})\s+([0-9-]+)\t(.+)$/
        type = $1
        sha  = $2
        size = $3
        name = $4.force_encoding(@path_encoding)
        full_path = p.empty? ? name : "#{p}/#{name}"
        n      = scm_iconv('UTF-8', @path_encoding, name)
        full_p = scm_iconv('UTF-8', @path_encoding, full_path)
        entries << Entry.new({:name => n,
         :path => full_p,
         :kind => (type == "tree") ? 'dir' : 'file',
         :size => (type == "tree") ? nil : size,
         :lastrev => options[:report_last_commit] ?
                         lastrev(full_path, identifier) : Revision.new
        }) unless entries.detect{|entry| entry.name == name}
      end
    end
  end
  entries.sort_by_name
rescue ScmCommandAborted
  nil
end

#entry(path = nil, identifier = nil) ⇒ Object


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# File 'lib/redmine/scm/adapters/git_adapter.rb', line 116

def entry(path=nil, identifier=nil)
  parts = path.to_s.split(%r{[\/\\]}).select {|n| !n.blank?}
  search_path = parts[0..-2].join('/')
  search_name = parts[-1]
  if search_path.blank? && search_name.blank?
    # Root entry
    Entry.new(:path => '', :kind => 'dir')
  else
    # Search for the entry in the parent directory
    es = entries(search_path, identifier,
                 options = {:report_last_commit => false})
    es ? es.detect {|e| e.name == search_name} : nil
  end
end

#infoObject


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# File 'lib/redmine/scm/adapters/git_adapter.rb', line 70

def info
  begin
    Info.new(:root_url => url, :lastrev => lastrev('',nil))
  rescue
    nil
  end
end

#lastrev(path, rev) ⇒ Object


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# File 'lib/redmine/scm/adapters/git_adapter.rb', line 164

def lastrev(path, rev)
  return nil if path.nil?
  cmd_args = %w|log --no-color --encoding=UTF-8 --date=iso --pretty=fuller --no-merges -n 1|
  cmd_args << rev if rev
  cmd_args << "--" << path unless path.empty?
  lines = []
  git_cmd(cmd_args) { |io| lines = io.readlines }
  begin
      id = lines[0].split[1]
      author = lines[1].match('Author:\s+(.*)$')[1]
      time = Time.parse(lines[4].match('CommitDate:\s+(.*)$')[1])

      Revision.new({
        :identifier => id,
        :scmid      => id,
        :author     => author,
        :time       => time,
        :message    => nil,
        :paths      => nil
        })
  rescue NoMethodError => e
      logger.error("The revision '#{path}' has a wrong format")
      return nil
  end
rescue ScmCommandAborted
  nil
end

#path_encodingObject


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# File 'lib/redmine/scm/adapters/git_adapter.rb', line 66

def path_encoding
  @path_encoding
end

#revisions(path, identifier_from, identifier_to, options = {}) ⇒ Object


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# File 'lib/redmine/scm/adapters/git_adapter.rb', line 192

def revisions(path, identifier_from, identifier_to, options={})
  revs = Revisions.new
  cmd_args = %w|log --no-color --encoding=UTF-8 --raw --date=iso --pretty=fuller --parents --stdin|
  cmd_args << "--reverse" if options[:reverse]
  cmd_args << "-n" << "#{options[:limit].to_i}" if options[:limit]
  cmd_args << "--" << scm_iconv(@path_encoding, 'UTF-8', path) if path && !path.empty?
  revisions = []
  if identifier_from || identifier_to
    revisions << ""
    revisions[0] << "#{identifier_from}.." if identifier_from
    revisions[0] << "#{identifier_to}" if identifier_to
  else
    unless options[:includes].blank?
      revisions += options[:includes]
    end
    unless options[:excludes].blank?
      revisions += options[:excludes].map{|r| "^#{r}"}
    end
  end

  git_cmd(cmd_args, {:write_stdin => true}) do |io|
    io.binmode
    io.puts(revisions.join("\n"))
    io.close_write
    files=[]
    changeset = {}
    parsing_descr = 0  #0: not parsing desc or files, 1: parsing desc, 2: parsing files

    io.each_line do |line|
      if line =~ /^commit ([0-9a-f]{40})(( [0-9a-f]{40})*)$/
        key = "commit"
        value = $1
        parents_str = $2
        if (parsing_descr == 1 || parsing_descr == 2)
          parsing_descr = 0
          revision = Revision.new({
            :identifier => changeset[:commit],
            :scmid      => changeset[:commit],
            :author     => changeset[:author],
            :time       => Time.parse(changeset[:date]),
            :message    => changeset[:description],
            :paths      => files,
            :parents    => changeset[:parents]
          })
          if block_given?
            yield revision
          else
            revs << revision
          end
          changeset = {}
          files = []
        end
        changeset[:commit] = $1
        unless parents_str.nil? or parents_str == ""
          changeset[:parents] = parents_str.strip.split(' ')
        end
      elsif (parsing_descr == 0) && line =~ /^(\w+):\s*(.*)$/
        key = $1
        value = $2
        if key == "Author"
          changeset[:author] = value
        elsif key == "CommitDate"
          changeset[:date] = value
        end
      elsif (parsing_descr == 0) && line.chomp.to_s == ""
        parsing_descr = 1
        changeset[:description] = ""
      elsif (parsing_descr == 1 || parsing_descr == 2) \
          && line =~ /^:\d+\s+\d+\s+[0-9a-f.]+\s+[0-9a-f.]+\s+(\w)\t(.+)$/
        parsing_descr = 2
        fileaction    = $1
        filepath      = $2
        p = scm_iconv('UTF-8', @path_encoding, filepath)
        files << {:action => fileaction, :path => p}
      elsif (parsing_descr == 1 || parsing_descr == 2) \
          && line =~ /^:\d+\s+\d+\s+[0-9a-f.]+\s+[0-9a-f.]+\s+(\w)\d+\s+(\S+)\t(.+)$/
        parsing_descr = 2
        fileaction    = $1
        filepath      = $3
        p = scm_iconv('UTF-8', @path_encoding, filepath)
        files << {:action => fileaction, :path => p}
      elsif (parsing_descr == 1) && line.chomp.to_s == ""
        parsing_descr = 2
      elsif (parsing_descr == 1)
        changeset[:description] << line[4..-1]
      end
    end

    if changeset[:commit]
      revision = Revision.new({
        :identifier => changeset[:commit],
        :scmid      => changeset[:commit],
        :author     => changeset[:author],
        :time       => Time.parse(changeset[:date]),
        :message    => changeset[:description],
        :paths      => files,
        :parents    => changeset[:parents]
         })
      if block_given?
        yield revision
      else
        revs << revision
      end
    end
  end
  revs
rescue ScmCommandAborted => e
  err_msg = "git log error: #{e.message}"
  logger.error(err_msg)
  if block_given?
    raise CommandFailed, err_msg
  else
    revs
  end
end

#tagsObject


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# File 'lib/redmine/scm/adapters/git_adapter.rb', line 97

def tags
  return @tags if @tags
  cmd_args = %w|tag|
  git_cmd(cmd_args) do |io|
    @tags = io.readlines.sort!.map{|t| t.strip}
  end
rescue ScmCommandAborted
  nil
end