guilt-pop

   1 #!/bin/bash
   2 #
   3 # Copyright (c) Josef "Jeff" Sipek, 2006, 2007
   4 #
   5
   6 source "`dirname $0`/guilt"
   7
   8 USAGE="$USAGE [-a | --all | <patchname>]"
   9
  10 if [ $# -gt 1 ]; then
  11         print_usage
  12         exit 1
  13 fi
  14
  15 patch="$1"
  16
  17 if [ "$patch" = "--all" -o "$patch" = "-a" ]; then
  18         # we are supposed to pop all patches
  19
  20         sidx=`wc -l < $applied`
  21         sidx=`expr $sidx - 1`
  22         eidx=0
  23 elif [ -z "$patch" ]; then
  24         # we are supposed to pop only the current patch on the stack
  25
  26         sidx=`wc -l < $applied`
  27         sidx=`expr $sidx - 1`
  28         eidx=$sidx
  29 else
  30         # we're supposed to pop only up to a patch, make sure the patch is
  31         # in the series
  32
  33         eidx=`cat $applied | grep -ne "^[0-9a-f]\{40\}:$patch\$" | cut -d: -f 1`
  34         if [ -z "$eidx" ]; then
  35                 echo "Patch $patch is not in the series/is not applied" >&2
  36                 exit 1
  37         fi
  38
  39         eidx=`expr $eidx - 1`
  40         sidx=`wc -l < $applied`
  41         sidx=`expr $sidx - 1`
  42 fi
  43
  44 # make sure that there are no unapplied changes
  45 if ! must_commit_first; then
  46         echo "Uncommited changes detected. Refresh first." >&2
  47         exit 1
  48 fi
  49
  50 idx=`get_series | wc -l`
  51 for p in `get_series | tac`; do
  52         idx=`expr $idx - 1`
  53         [ $idx -gt $sidx ] && continue
  54         [ $idx -lt $eidx ] && break
  55
  56         echo "Popping patch...`tail -1 < $applied | cut -d: -f 2-`"
  57
  58         pop_patch
  59 done
  60
  61 p=`get_top`
  62 [ ! -z "$p" ] && echo "Now at $p." || echo "All patches popped."
  63