git-recurse

   1 #!/bin/sh
   2
   3 SEPARATOR=@@
   4
   5 # TODO this logic should probably rather be in rev-parse itself
   6 # what it does:
   7 #   whenever an expression foo@@bar is used as an argument
   8 #   it checks whether foo is a valid reference, and if not, bar is used instead
   9 processarg()
  10 {
  11         prefix=
  12         suffix=
  13         case "$1" in
  14                 *..*)
  15                         first=${1%%..*}
  16                         rest=${1#*..}
  17                         first=`processarg "$first"`
  18                         rest=`processarg "$rest"`
  19                         echo "$first..$rest"
  20                         ;;
  21                 *@\{*)
  22                         first=${1%%@\{*}
  23                         rest=${1#*@\{}
  24                         first=`processarg "$first"`
  25                         echo "$first@{$rest"
  26                         ;;
  27                 *^*)
  28                         first=${1%%^*}
  29                         rest=${1#*^}
  30                         first=`processarg "$first"`
  31                         echo "$first^$rest"
  32                         ;;
  33                 *~*)
  34                         first=${1%%~*}
  35                         rest=${1#*~}
  36                         first=`processarg "$first"`
  37                         echo "$first~$rest"
  38                         ;;
  39                 *:*)
  40                         first=${1%%:*}
  41                         rest=${1#*:}
  42                         first=`processarg "$first"`
  43                         echo "$first:$rest"
  44                         ;;
  45                 ^*)
  46                         first=${1#^}
  47                         first=`processarg "$first"`
  48                         echo "^$first"
  49                         ;;
  50                 *$SEPARATOR*)
  51                         first=${1%%$SEPARATOR*}
  52                         rest=${1#*$SEPARATOR}
  53                         if git rev-parse "$first" >/dev/null 2>&1; then
  54                                 echo "$first"
  55                         else
  56                                 processarg "$rest"
  57                         fi
  58                         ;;
  59                 *)
  60                         echo "$1"
  61                         ;;
  62         esac
  63 }
  64 processargs()
  65 {
  66         first=true
  67         for X in "$@"; do
  68                 if $first; then
  69                         first=false
  70                         # clear arg list
  71                         set --
  72                 fi
  73                 set -- "$@" "`processarg "$X"`"
  74         done
  75         "$@"
  76 }
  77
  78 # recurse through all sub-repos
  79 status=0
  80 for GITDIR in `find . -type d -name \*.git`; do
  81         # TODO I would LIKE to do this, but then some commands (like pull) fail
  82         #export GIT_DIR="$GITDIR"
  83         #export GIT_WORK_TREE="${GITDIR%/.git}"
  84         # so I will have to chdir instead
  85
  86         ( cd "$GITDIR/.." && processargs git "$@" )
  87         if [ "$?" -gt "$status" ]; then
  88                 status=$?
  89         fi
  90 done
  91 exit "$status"