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 $PATH)"
  26 fi
  27
  28 filter_path () {
  29         PATH=$npath
  30 }
  31
  32 bypass=true
  33 for arg in "$@"; do
  34         case "$arg" in
  35         apply)  bypass=false; break     ;;
  36         -*)                             ;;
  37         *)      bypass=true; break      ;;
  38         esac
  39 done
  40
  41 if $bypass; then
  42         filter_path
  43         echo >&3 "DGIT ABSURD GIT APPLY - BYPASS: $*"
  44         exec git "$@"
  45 fi
  46
  47 log "NO BYPASS: $*"
  48
  49 case "$DGIT_ABSURD_DEBUG" in
  50 ''|0|1) ;;
  51 *)      set -x ;;
  52 esac
  53
  54 #exec >/dev/tty 2>&1
  55
  56 index=0
  57 noo=0
  58
  59 for arg in "$@"; do
  60         case "$noo.$arg" in
  61         1.--index)
  62                 index=1
  63                 continue
  64                 ;;
  65         1.--whitespace=fix)
  66                 continue
  67                 ;;
  68         ?.-*)
  69                 fail "UNKNOWN OPTION $arg ($*)"
  70                 ;;
  71         0.apply)
  72                 ;;
  73         1.*)    patch="$arg"
  74                 ;;
  75         *)
  76                 fail "BAD USAGE $arg ($noo $*)"
  77         esac
  78         noo=$(( $noo + 1 ))
  79 done
  80
  81 if [ $noo != 2 ]; then
  82         fail "NO PATCH ($*)"
  83 fi
  84
  85 pwd=`pwd`
  86 patch=${patch#$pwd/debian/patches/}
  87 rm -f debian/patches/series
  88
  89 # Work around #848611.
  90 # We need a stunt filename which the source package must not
  91 # contain.  A trick is to use the commit hash of HEAD, whose
  92 # hash value cannot appear in any file in its own tree.
  93 omgwtf="dgit-omg-wtf-$(git rev-parse HEAD)"
  94 cat <<END >debian/patches/$omgwtf
  95 ---
  96 --- a/$omgwtf   2016-10-31 23:28:47.314155919 +0000
  97 +++ b/$omgwtf   2016-12-18 22:40:01.870058270 +0000
  98 @@ -0,0 +1 @@
  99 +:
 100 END
 101 printf "%s\n" "$omgwtf" >debian/patches/series
 102 printf "%s\n" "$patch" >>debian/patches/series
 103
 104 # Just in case some joker tries to patch .git/something
 105 mv .git ../.git
 106 set +e
 107 dpkg-source --before-build .
 108 rc=$?
 109 set -e
 110 rm -rf .git
 111 mv ../.git .
 112 test $rc = 0
 113
 114 rm -f $omgwtf debian/patches/$omgwtf
 115
 116 rm -rf .pc
 117 git checkout debian/patches/series
 118 git add -Af .
 119
 120 log "APPLIED $patch"
 121 #printf 'APPLIED '; date --iso-8601=ns