git-split-repository

   1 #!/bin/sh
   2
   3 set -ex
   4
   5 d="$PWD"
   6 src=$1
   7 shift
   8
   9 # expects command line options like
  10 #       bspfiles='s,^data/(?=.*(?:\.bsp|/lm_.*\.tga)$),,' \
  11 #       a_nonbsp=
  12 # i.e. like filter-index, but with reponame= instead of .
  13
  14 repos=`for x in "$@"; do
  15         case "$x" in
  16                 delete=*)
  17                         ;;
  18                 *=*)
  19                         echo "${x%%=*}"
  20                         ;;
  21         esac
  22 done | sort -u`
  23
  24 export filterfile=`mktemp`
  25
  26 for r in $repos; do
  27         rsync -vaSHP --delete "$src" "$r.git/"
  28         cd "$r.git"
  29         for x in "$@"; do
  30                 case "$x" in
  31                         *=*)
  32                                 rr=${x%%=*}
  33                                 f=${x#*=}
  34                                 if [ x"$r" = x"$rr" ]; then
  35                                         printf -- "+%s\0" "$f"
  36                                 else
  37                                         printf -- "-%s\0" "$f"
  38                                 fi
  39                                 ;;
  40                 esac
  41         done >"$filterfile"
  42         git filter-repository "$filterfile"
  43         cd "$d"
  44 done
  45
  46 rm -f "$filterfile"