Class: GitHelpers::GitFancyDiff

Inherits:
GitDiff
  • Object
show all
Defined in:
lib/git_helpers/diff.rb

Constant Summary

Constants inherited from GitDiff

GitHelpers::GitDiff::NoNewLine

Instance Attribute Summary

Attributes inherited from GitDiff

#output

Instance Method Summary collapse

Methods inherited from GitDiff

#change_mode, #detect_delete, #detect_diff_header, #detect_end_diff_header, #detect_end_hunk, #detect_filename, #detect_index, #detect_new_commit, #detect_new_diff_header, #detect_new_hunk, #detect_new_submodule_header, #detect_newfile, #detect_perm, #detect_rename_copy, #each, #end_hunk, #end_meta, #end_submodule, #get_file_name, #handle_commit, #handle_diff_header, #handle_hunk, #handle_meta, #handle_submodule, #handle_submodule_header, #new_hunk, #new_meta, #new_submodule, #next_mode, output, #output_line, #output_lines, #parse, #parse_hunk_header, #parse_line, #prepare_new_line, #reparse, #submodule_line, #update_mode

Constructor Details

#initialize(*args, **kw, &b) ⇒ GitFancyDiff

Returns a new instance of GitFancyDiff.



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# File 'lib/git_helpers/diff.rb', line 485

def initialize(*args,**kw,&b)
  super
  #when run inside a pager I get one more column so the line overflow
  #I don't know why
  cols=`tput cols`.to_i
  cols==0 && cols=80 #if TERM is not defined `tput cols` returns ''
  @cols=cols-1
end

Instance Method Details

#binary_file_differ ⇒ Object 



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# File 'lib/git_helpers/diff.rb', line 628

def binary_file_differ
  @file and (@file[:mode]==:new && @line =~ %r{^Binary files /dev/null and ./#{@file[:name]} differ$} or
              @file[:mode]==:delete && @line =~ %r{^Binary files ./#{@file[:old_name]} and /dev/null differ$})
end

#clean_hunk_col ⇒ Object 



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# File 'lib/git_helpers/diff.rb', line 602

def clean_hunk_col
  if @opts[:color] && @mode==:hunk && !@start_mode && @hunk[:n]==2
    bcolor,ecolor,line=SimpleColor.current_colors(@orig_line)
    m=line.scrub.match(/^([+-])?(.*)/)
    mode=m[1]
    cline=m[2]
    if mode && cline !~ /[^[:space:]]/ #detect blank line
      output_line SimpleColor.color(bcolor.to_s + (cline.empty? ? " ": cline)+ecolor.to_s,:inverse)
    else
      cline.sub!(/^\s/,'') unless mode #strip one blank character
      output_line bcolor.to_s+cline+ecolor.to_s
    end
    true
  end
end

#diff_header_summary ⇒ Object 



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# File 'lib/git_helpers/diff.rb', line 532

def diff_header_summary
  r=case @file[:mode]
    when :modify
      "modified: #{@file[:name]}"
    when :rewrite
      "rewrote: #{@file[:name]} (dissimilarity: #{@file[:dissimilarity]})"
    when :new
      "added#{perm_mode(@file[:new_perm])}: #{@file[:name]}"
    when :delete
      "deleted#{perm_mode(@file[:old_perm])}: #{@file[:old_name]}"
    when :rename
      "renamed: #{@file[:old_name]} to #{@file[:name]} (similarity: #{@file[:similarity]})"
    when :copy
      "copied: #{@file[:old_name]} to #{@file[:name]} (similarity: #{@file[:similarity]})"
    end
  r<<" [#{short_perm_mode(@file[:old_perm],prefix:'-')}#{short_perm_mode(@file[:new_perm])}]" if @file[:old_perm] && @file[:new_perm]
  r
end

#end_commit ⇒ Object 



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# File 'lib/git_helpers/diff.rb', line 597

def end_commit
  super
  output_line meta_colorize(hhline)
end

#end_diff_header ⇒ Object 



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# File 'lib/git_helpers/diff.rb', line 564

def end_diff_header
  super
  output_line meta_colorize(diff_header_summary)
  output_line meta_colorize(hline)
end

#end_submodule_header ⇒ Object 



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# File 'lib/git_helpers/diff.rb', line 583

def end_submodule_header
  super
  output_line meta_colorize(submodule_header_summary)
  output_line meta_colorize(hline)
end

#handle_line ⇒ Object 



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# File 'lib/git_helpers/diff.rb', line 633

def handle_line
  super
  #:diff_header and submodule_header are handled at end_*
  case @mode
  when :meta
    if binary_file_differ
    else output_line @orig_line
    end
  when :hunk
    if hunk_header
    elsif nonewline_clean
    elsif clean_hunk_col
    else output_line @orig_line
    end
  when :submodule,:commit
    output_line @orig_line
  end
end

#hhline ⇒ Object 



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# File 'lib/git_helpers/diff.rb', line 497

def hhline
  #'⬛'*@cols
  #"━"*@cols
  "═"*@cols
end

#hline ⇒ Object 



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# File 'lib/git_helpers/diff.rb', line 494

def hline
  '─'*@cols
end

#hunk_header ⇒ Object 



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# File 'lib/git_helpers/diff.rb', line 618

def hunk_header
  if @mode==:hunk && @start_mode
    if @hunk[:lines][0][1] && @hunk[:lines][0][1] != 0
      header="#{@file[:name]}:#{@hunk[:lines][0][1]}"
      output_line @orig_line.sub(/(@@+\s)(.*)(\s@@+)/,"\\1#{header}\\3")
    end
    true
  end
end

#meta_colorize(l) ⇒ Object 



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# File 'lib/git_helpers/diff.rb', line 551

def meta_colorize(l)
  if @opts[:color]
    l.color(*@colors[:meta])
  else
    l
  end
end

#new_commit ⇒ Object 



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# File 'lib/git_helpers/diff.rb', line 593

def new_commit
  super
  output_line meta_colorize(hhline)
end

#new_diff_header ⇒ Object 



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# File 'lib/git_helpers/diff.rb', line 559

def new_diff_header
  super
  output_line meta_colorize(hline)
end

#new_submodule_header ⇒ Object 



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# File 'lib/git_helpers/diff.rb', line 578

def new_submodule_header
  super
  output_line meta_colorize(hline)
end

#nonewline_clean ⇒ Object 



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# File 'lib/git_helpers/diff.rb', line 589

def nonewline_clean
    @mode==:hunk && @file && (@file[:perm]=="120000" or @file[:old_perm]=="120000" or @file[:new_perm]=="120000") && @line==NoNewLine
end

#perm_mode(m, prefix: ' ') ⇒ Object 



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# File 'lib/git_helpers/diff.rb', line 517

def perm_mode(m, prefix: ' ')
  case m
  when "040000"
    prefix+"directory"
  when "100644"
    "" #file
  when "100755"
    prefix+"executable"
  when "120000"
    prefix+"symlink"
  when "160000"
    prefix+"gitlink"
  end
end

#short_perm_mode(m, prefix: '+') ⇒ Object 



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# File 'lib/git_helpers/diff.rb', line 503

def short_perm_mode(m, prefix: '+')
  case m
  when "040000"
    prefix+"d" #directory
  when "100644"
    "" #file
  when "100755"
    prefix+"x" #executable
  when "120000"
    prefix+"l" #symlink
  when "160000"
    prefix+"g" #gitlink
  end
end

#submodule_header_summary ⇒ Object 



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# File 'lib/git_helpers/diff.rb', line 570

def submodule_header_summary
  r="Submodule #{@submodule[:name]}"
  extra=[@submodule[:modified] && "modified", @submodule[:untracked] && "untracked"].compact.join("+")
  r<<" [#{extra}]" unless extra.empty?
  r << " #{@submodule[:info]}" if @submodule[:info]
  r
end