svnhacks.sh

#Author:  Martin Grenfell [http://github.com/scrooloose]
#License:
#
#  This program is free software. It comes without any warranty, to
#  the extent permitted by applicable law. You can redistribute it
#  and/or modify it under the terms of the Do What The Fuck You Want
#  To Public License, Version 2, as published by Sam Hocevar.  See
#  http://sam.zoy.org/wtfpl/COPYING for more details.
#
#This script hijacks calls to svn and adds color and pagination to
#some svn commands. Source it from your bashrc.
#
#colordiff must be installed.
#-------------------------------------------------------------------

#intercept calls to svn
svn () {

  #bail if the user didnt specify which subversion command to invoke
  if [ $# -lt 1 ]; then
    command svn
    return
  fi

  local sub_cmd=$1
  shift

  #intercept svn diff commands
  if [ $sub_cmd == diff ]; then

    #colorize the diff
    #remove stupid ^M dos line endings
    #page it if there's more one screen
    command svn diff "$@" | colordiff | sed -e 's/\r//g' | less -RF

  #add some color to svn status output and page if needed:
  #M = blue
  #A = green
  #D/!/~ = red
  #C = magenta
  #
  #note that C and M can be preceded by whitespace - see $svn help status
  elif [[ $sub_cmd =~ ^(status|st)$ ]]; then
    command svn status "$@" | sed -e 's/^\(\([A-Z]\s\+\(+\s\+\)\?\)\?C .*\)$/\o33\[1;35m\1\o33[0m/' \
                                  -e 's/^\(\s*M.*\)$/\o33\[1;34m\1\o33[0m/' \
                                  -e 's/^\(A.*\)$/\o33\[1;32m\1\o33[0m/' \
                                  -e 's/^\(\(D\|!\|~\).*\)$/\o33\[1;31m\1\o33[0m/' | less -RF

  #page some stuff I often end up paging manually
  elif [[ $sub_cmd =~ ^(blame|help|h|cat)$ ]]; then
    command svn $sub_cmd "$@" | less -F

  #colorize and page svn log
  #rearrange the date field from:
  #  2010-10-08 21:19:24 +1300 (Fri, 08 Oct 2010)
  #to:
  #  2010-10-08 21:19 (Fri, +1300)
  elif [[ $sub_cmd == log ]]; then
    command svn log "$@" | sed -e 's/^\(.*\)|\(.*\)| \(.*\) \(.*\):[0-9]\{2\} \(.*\) (\(...\).*) |\(.*\)$/\o33\[1;32m\1\o33[0m|\o33\[1;34m\2\o33[0m| \o33\[1;35m\3 \4 (\6, \5)\o33[0m |\7/' | less -RF

  #let svn handle it as normal
  else
    command svn $sub_cmd "$@"
  fi
}

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