Module: GitHelpers::GitStats

Included in:
GitDir
Defined in:
lib/git_helpers/stats.rb

Instance Method Summary collapse

Instance Method Details

#infos ⇒ Object

inspired by visionmedia//git-infos



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# File 'lib/git_helpers/stats.rb', line 130

def infos
  with_dir do
    puts "## Remote URLs:"
    puts
    system("git --no-pager remote -v")
    puts
    
    puts "## Remote Branches:"
    puts
    system("git --no-pager  branch -r")
    puts
    
    puts "## Local Branches:"
    puts
    system("git --no-pager  branch")
    puts
    
    puts "## Most Recent Commit:"
    puts
    system("git --no-pager log --max-count=1 --pretty=short")
    puts
  end
end

#output_stats_authors(logopts = nil) ⇒ Object 



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# File 'lib/git_helpers/stats.rb', line 122

def output_stats_authors(logopts=nil)
  authors=stats_authors(logopts, more: true)
  authors.each do |a,v|
    puts "- #{a}: #{v[:commits]} commits (+#{v[:added]}/-#{v[:deleted]}), #{v[:files]} files modified, #{v[:renames]} renames, #{v[:merges]} merges"
  end
end

#output_stats_diff(logopts = nil) ⇒ Object 



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# File 'lib/git_helpers/stats.rb', line 35

def output_stats_diff(logopts=nil)
  lines=stats_diff(logopts)
  lines.sort_by { |a, c| -c[:all] }.each do |a, c|
    puts "#{a}: #{c[:all]} lines of diff (+#{c[:added]}/-#{c[:deleted]})"
  end
end

#output_stats_lines ⇒ Object 



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# File 'lib/git_helpers/stats.rb', line 73

def output_stats_lines
  stats=stats_lines_all
  total=stats.values.sum
  stats.sort_by{|k,v| -v}.each do |k,v|
    puts "- #{k}: #{v} (#{"%2.1f%%" % (100*v/total.to_f)})"
  end
  puts "Total lines: #{total}"
end

#stats_authors(logopts = nil, more: false) ⇒ Object

Inspired by https://github.com/esc/git-stats/blob/master/git-stats.sh



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# File 'lib/git_helpers/stats.rb', line 83

def stats_authors(logopts=nil, more: false)
  require 'set'
  #Exemple: --after=..., --before=...,
  #  -w #word diff
  #  -C --find-copies-harder; -M
  authors={}
  with_dir do
    %x/git shortlog -sn #{logopts}/.each_line do |l|
      commits, author=l.chomp.split(' ', 2)
      authors[author]={commits: commits.to_i}
    end

    if more
      authors.each_key do |a|
        tot_a=0; tot_r=0; tot_rename=0; files=Set.new
        %x/git log #{DefaultLogOptions} #{logopts} --numstat --format="%n" --author='#{a}'/.each_line do |l|
          added, deleted, file=l.chomp.split(' ',3)
          #puts "#{l} => #{added}, #{deleted}, #{rest}"
          tot_a+=added.to_i; tot_r+=deleted.to_i
          next if file.nil?
          if file.include?(' => ')
            tot_rename+=1
          else
            files.add(file) unless file.empty?
          end
        end
        #rev-list should be faster, but I would need to use 
        # `git rev-parse --revs-only --default HEAD #{logopts.shelljoin}`
        # to be sure we default to HEAD, and 
        # `git rev-parse --flags #{logopts.shelljoin}` to get the log flags...
        #tot_merges=%x/git rev-list #{logopts} --merges --author='#{a}'/.each_line.count
        tot_merges=%x/git log --pretty=oneline #{logopts} --merges --author='#{a}'/.each_line.count
        authors[a].merge!({added: tot_a, deleted: tot_r, files: files.size, renames: tot_rename, merges: tot_merges})
      end
    end
  end
  authors
end

#stats_diff(logopts = nil) ⇒ Object

Note: stats-authors give the same result, should be faster, and handle mailcap inspired by git-mainline//git-rank-contributors



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# File 'lib/git_helpers/stats.rb', line 6

def stats_diff(logopts=nil)
  lines = {}

  with_dir do
    author = nil
    state = :pre_author
    DR::Encoding.fix_utf8(`git log #{DefaultLogOptions} -p #{logopts}`).each_line do |l|
      case
      when (state == :pre_author || state == :post_author) && m=l[/Author: (.*)$/,1]
        #TODO: using directly author=l[]... seems to only affect a block scoped author variable
        author=m
        state = :post_author
        lines[author] ||= {added: 0, deleted: 0, all: 0}
      when state == :post_author && l =~ /^\+\+\+\s/
        state = :in_diff
      when state == :in_diff && l =~ /^[\+\-]/
        unless l=~ /^(\+\+\+|\-\-\-)\s/
          lines[author][:all] += 1 
          lines[author][:added] += 1 if l[0]=="+"
          lines[author][:deleted] += 1 if l[0]=="-"
        end
      when state == :in_diff && l =~ /^commit /
        state = :pre_author
      end
    end
  end
  lines
end

#stats_lines(file) ⇒ Object

inspired by visionmedia//git-line-summary



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# File 'lib/git_helpers/stats.rb', line 43

def stats_lines(file)
  out=""
  with_dir do
    out,_suc=SH.run_simple("git", "blame", "--line-porcelain", file, quiet: true)
  end
  r={}
  begin
  out.each_line do |l|
      l.match(/^author (.*)/) do |m|
        r[m[1]]||=0
        r[m[1]]+=1
      end
    end
  rescue => e
    warn "Warning: #{e} on #{file}"
  end
  r
end

#stats_lines_all ⇒ Object 



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# File 'lib/git_helpers/stats.rb', line 62

def stats_lines_all
  r={}
  all_files.select {|f| SH::Pathname.new(f).text? rescue false}.each do |f|
    stats_lines(f).each do |k,v|
      r[k]||=0
      r[k]+=v
    end
  end
  r
end

#summary(logopts = nil) ⇒ Object

inspired by visionmedia//git-summary



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# File 'lib/git_helpers/stats.rb', line 155

def summary(logopts=nil)
  with_dir do
    project=Pathname.new(%x/git rev-parse --show-toplevel/).basename
    authors=stats_authors(logopts)
    commits=authors.map {|a,v| v[:commits]}.sum
    file_count=%x/git ls-files/.each_line.count
    active_days=%x/git log --date=short --pretty='format: %ad' #{logopts}/.each_line.uniq.count
    #This only give the rep age of the current branch; and is not
    #efficient since we generate the first log
    #A better way would be to get all the roots commits via
    #    git rev-list --max-parents=0 HEAD
    #and then look at their ages
    repository_age=%x/git log --reverse --pretty=oneline --format="%ar" #{logopts}/.each_line.first.sub!('ago','')
    #total= %x/git rev-list #{logopts}/.each_line.count
    total=%x/git rev-list --count #{logopts.empty? ? "HEAD" : logopts.shelljoin}/.to_i

    puts " project  : #{project}"
    puts " repo age : #{repository_age}"
    puts " active   : #{active_days} days"
    puts " commits  : #{commits}"
    puts " files    : #{file_count}"
    puts " authors  : #{authors.keys.join(", ")} (Total: #{total})"
    authors.each do |a,v|
      puts " - #{a}: #{v[:commits]} (#{"%2.1f" % (100*v[:commits]/commits.to_f)}%)"
    end
  end
end