LXR linux-old/scripts/patch-kernel

   1#! /bin/sh
   2# Script to apply kernel patches.
   3#   usage: patch-kernel [ sourcedir [ patchdir ] ]
   4#     The source directory defaults to /usr/src/linux, and the patch
   5#     directory defaults to the current directory.
   6#
   7# It determines the current kernel version from the top-level Makefile.
   8# It then looks for patches for the next sublevel in the patch directory.
   9# This is applied using "patch -p1 -s" from within the kernel directory.
  10# A check is then made for "*.rej" files to see if the patch was
  11# successful.  If it is, then all of the "*.orig" files are removed.
  12#
  13#       Nick Holloway <Nick.Holloway@alfie.demon.co.uk>, 2nd January 1995.
  14#
  15# Added support for handling multiple types of compression. What includes
  16# gzip, bzip, bzip2, zip, compress, and plaintext. 
  17#
  18#       Adam Sulmicki <adam@cfar.umd.edu>, 1st January 1997.
  19
  20# Set directories from arguments, or use defaults.
  21sourcedir=${1-/usr/src/linux}
  22patchdir=${2-.}
  23
  24# set current VERSION, PATCHLEVEL, SUBLEVEL
  25eval `sed -n 's/^\([A-Z]*\) = \([0-9]*\)$/\1=\2/p' $sourcedir/Makefile`
  26if [ -z "$VERSION" -o -z "$PATCHLEVEL" -o -z "$SUBLEVEL" ]
  27then
  28    echo "unable to determine current kernel version" >&2
  29    exit 1
  30fi
  31
  32echo "Current kernel version is $VERSION.$PATCHLEVEL.$SUBLEVEL"
  33
  34while :
  35do
  36    SUBLEVEL=`expr $SUBLEVEL + 1`
  37    patch=patch-$VERSION.$PATCHLEVEL.$SUBLEVEL 
  38    if [ -r $patchdir/${patch}.gz ]; then
  39        ext=".gz"
  40        name="gzip"
  41        uncomp="gunzip -dc"
  42    elif [ -r $patchdir/${patch}.bz  ]; then
  43        ext=".bz"
  44        name="bzip"
  45        uncomp="bunzip -dc"
  46    elif [ -r $patchdir/${patch}.bz2 ]; then
  47        ext=".bz2"
  48        name="bzip2"
  49        uncomp="bunzip2 -dc"
  50    elif [ -r $patchdir/${patch}.zip ]; then
  51        ext=".zip"
  52        name="zip"
  53        uncomp="unzip -d"
  54    elif [ -r $patchdir/${patch}.Z ]; then
  55        ext=".Z"
  56        name="uncompress"
  57        uncomp="uncompress -c"
  58    elif [ -r $patchdir/${patch}     ]; then
  59        ext=""
  60        name="plaintext"
  61        uncomp="cat"
  62    else
  63        break
  64    fi
  65
  66    echo -n "Applying ${patch} (${name})... "
  67    if $uncomp ${patchdir}/${patch}${ext} | patch -p1 -s -N -E -d $sourcedir
  68    then
  69        echo "done."
  70    else
  71        echo "failed.  Clean up yourself."
  72        break
  73    fi
  74    if [ "`find $sourcedir/ '(' -name '*.rej' -o -name '.*.rej' ')' -print`" ]
  75    then
  76        echo "Aborting.  Reject files found."
  77        break
  78    fi
  79    # Remove backup files
  80    find $sourcedir/ '(' -name '*.orig' -o -name '.*.orig' ')' -exec rm -f {} \;
  81done
  82