scripts/patch.sh

   1 #!/usr/bin/env bash
   2 # A little script I whipped up to make it easy to
   3 # patch source trees and have sane error handling
   4 # -Erik
   5 #
   6 # (c) 2006, 2007 Thorsten Glaser <tg@freewrt.org>
   7 # (c) 2002 Erik Andersen <andersen@codepoet.org>
   8
   9 [[ -n $BASH_VERSION ]] && shopt -s extglob
  10
  11 # Set directories from arguments, or use defaults.
  12 targetdir=${1-.}
  13 patchdir=${2-../patches}
  14 patchpattern=${3-*}
  15
  16 if [ ! -d "${targetdir}" ] ; then
  17     echo "Aborting.  '${targetdir}' is not a directory."
  18     exit 1
  19 fi
  20 if [ ! -d "${patchdir}" ] ; then
  21     echo "Aborting.  '${patchdir}' is not a directory."
  22     exit 0
  23 fi
  24
  25 wd=$(pwd)
  26 cd $patchdir
  27 rm -f $targetdir/.patch.tmp
  28 for i in $(eval echo ${patchpattern}); do
  29     test -e "$i" || continue
  30     i=$patchdir/$i
  31     cd $wd
  32     case $i in
  33         *.gz)
  34         type="gzip"; uncomp="gunzip -dc"; ;;
  35         *.bz)
  36         type="bzip"; uncomp="bunzip -dc"; ;;
  37         *.bz2)
  38         type="bzip2"; uncomp="bunzip2 -dc"; ;;
  39         *.zip)
  40         type="zip"; uncomp="unzip -d"; ;;
  41         *.Z)
  42         type="compress"; uncomp="uncompress -c"; ;;
  43         *)
  44         type="plaintext"; uncomp="cat"; ;;
  45     esac
  46     [ -d "${i}" ] && echo "Ignoring subdirectory ${i}" && continue
  47     echo ""
  48     echo "Applying ${i} using ${type}: "
  49     ${uncomp} ${i} | tee $targetdir/.patch.tmp | patch -p1 -E -d ${targetdir}
  50     fgrep '@@ -0,0 ' $targetdir/.patch.tmp >/dev/null 2>&1 && \
  51       touch $targetdir/.patched-newfiles
  52     rm -f $targetdir/.patch.tmp
  53     if [ $? != 0 ] ; then
  54         echo "Patch failed!  Please fix $i!"
  55         exit 1
  56     fi
  57     cd $patchdir
  58 done
  59
  60 # Check for rejects...
  61 if [ "`find $targetdir/ '(' -name '*.rej' -o -name '.*.rej' ')' -print`" ] ; then
  62     echo "Aborting.  Reject files found."
  63     exit 1
  64 fi
  65
  66 # Remove backup files
  67 find $targetdir/ '(' -name '*.orig' -o -name '.*.orig' ')' -exec rm -f {} \;