lib/git/lib.rb

   1 module Git
   2
   3   class GitExecuteError < StandardError
   4   end
   5
   6   class Lib
   7
   8     @base = nil
   9
  10     def initialize(base)
  11       @base = base
  12     end
  13
  14     def log_commits(opts)
  15       arr_opts = ['--pretty=oneline']
  16       arr_opts << "-#{opts[:count]}" if opts[:count]
  17       arr_opts << "--since=\"#{opts[:since]}\"" if opts[:since].is_a? String
  18       arr_opts << "#{opts[:between][0]}..#{opts[:between][1].to_s}" if (opts[:between] && opts[:between].size == 2)
  19       arr_opts << opts[:file] if opts[:file].is_a? String
  20
  21       command_lines('log', arr_opts).map { |l| Git::Object::Commit.new(@base, l.split.first) }
  22     end
  23
  24     def revparse(string)
  25       command('rev-parse', string)
  26     end
  27
  28     def object_type(sha)
  29       command('cat-file', ['-t', sha])
  30     end
  31
  32     def object_size(sha)
  33       command('cat-file', ['-s', sha]).to_i
  34     end
  35
  36     def object_contents(sha)
  37       command('cat-file', ['-p', sha])
  38     end
  39
  40     def branches_all
  41       command_lines('branch', '-a').map { |l| Git::Branch.new(@base, l) }
  42     end
  43
  44     private
  45
  46     def command_lines(cmd, opts)
  47       command(cmd, opts).split("\n")
  48     end
  49
  50     def command(cmd, opts)
  51       ENV['GIT_DIR'] = @base.repo.path
  52       ENV['GIT_INDEX_FILE'] = @base.index.path
  53       ENV['GIT_WORK_DIR'] = @base.dir.path
  54       Dir.chdir(@base.dir.path) do
  55         opts = opts.to_a.join(' ')
  56         #puts "git #{cmd} #{opts}"
  57         out = `git #{cmd} #{opts} 2>&1`.chomp
  58         if $?.exitstatus != 0
  59           raise Git::GitExecuteError.new(out)
  60         end
  61         out
  62       end
  63     end
  64
  65   end
  66 end