absurd/git

   1 #!/bin/sh
   2 set -e
   3
   4 case "$DGIT_ABSURD_DEBUG" in
   5 ''|0)   exec 3>/dev/null ;;
   6 1)      exec 3>>../../gbp-pq-output ;;
   7 *)      exec 3>>../../gbp-pq-output 2>&3 ;;
   8 esac
   9
  10 exec 4>>../../absurd-apply-warnings
  11
  12 log () {
  13         echo >&3 "DGIT ABSURD GIT APPLY (DEBUG)  $*"
  14         echo >&2 "DGIT ABSURD GIT APPLY (STDERR) $*"
  15 }
  16
  17 fail () {
  18         log "FAILED: $*"
  19         exit 127
  20 }
  21
  22 self=${0%/*}
  23 npath=${PATH#$self:}
  24 if test "x$PATH" = "x$npath"; then
  25         fail "PATH FILTER FAIL ($0 $self $PATH)"
  26 fi
  27
  28 bypass=true
  29 for arg in "$@"; do
  30         case "$arg" in
  31         apply)  bypass=false; break     ;;
  32         -*)                             ;;
  33         *)      bypass=true; break      ;;
  34         esac
  35 done
  36
  37 if $bypass; then
  38         PATH=$npath
  39         echo >&3 "DGIT ABSURD GIT APPLY - BYPASS: $*"
  40         exec git "$@"
  41 fi
  42
  43 log "NO BYPASS: $*"
  44
  45 case "$DGIT_ABSURD_DEBUG" in
  46 ''|0|1) ;;
  47 *)      set -x ;;
  48 esac
  49
  50 #exec >/dev/tty 2>&1
  51
  52 index=0
  53 noo=0
  54
  55 for arg in "$@"; do
  56         case "$noo.$arg" in
  57         1.--index)
  58                 index=1
  59                 continue
  60                 ;;
  61         1.--whitespace=fix)
  62                 continue
  63                 ;;
  64         ?.-*)
  65                 fail "UNKNOWN OPTION $arg ($*)"
  66                 ;;
  67         0.apply)
  68                 ;;
  69         1.*)    patch="$arg"
  70                 ;;
  71         *)
  72                 fail "BAD USAGE $arg ($noo $*)"
  73         esac
  74         noo=$(( $noo + 1 ))
  75 done
  76
  77 if [ $noo != 2 ]; then
  78         fail "NO PATCH ($*)"
  79 fi
  80
  81 pwd=`pwd`
  82 patch=${patch#$pwd/debian/patches/}
  83 rm -f debian/patches/series
  84
  85 # Work around #848611.
  86 # We need a stunt filename which the source package must not
  87 # contain.  A trick is to use the commit hash of HEAD, whose
  88 # hash value cannot appear in any file in its own tree.
  89 omgwtf="dgit-omg-wtf-$(git rev-parse HEAD)"
  90 cat <<END >debian/patches/$omgwtf
  91 ---
  92 --- a/$omgwtf   2016-10-31 23:28:47.314155919 +0000
  93 +++ b/$omgwtf   2016-12-18 22:40:01.870058270 +0000
  94 @@ -0,0 +1 @@
  95 +:
  96 END
  97 printf "%s\n" "$omgwtf" >debian/patches/series
  98 printf "%s\n" "$patch" >>debian/patches/series
  99
 100 # Just in case some joker tries to patch .git/something
 101 mv .git ../.git
 102 set +e
 103 dpkg-source --before-build .
 104 rc=$?
 105 set -e
 106 rm -rf .git
 107 mv ../.git .
 108 test $rc = 0
 109
 110 rm -f $omgwtf debian/patches/$omgwtf
 111
 112 rm -rf .pc
 113 git checkout debian/patches/series
 114 git add -Af .
 115
 116 log "APPLIED $patch"
 117 #printf 'APPLIED '; date --iso-8601=ns