debian/git.preinst

   1 #!/bin/sh
   2 set -e
   3
   4 #DEBHELPER#
   5
   6 # /var/cache/git/ -> /var/lib/git/ transition
   7 if test "$1" = upgrade &&
   8    dpkg --compare-versions "$2" lt-nl '1:1.8.4~rc0-1'; then
   9         mkdir -m 755 -p /var/lib/git
  10         (
  11                 cd /var/lib/git
  12                 for target in ../../cache/git/*; do
  13                         if ! test -L "$target" && ! test -e "$target"; then
  14                                 continue
  15                         fi
  16
  17                         link=${target#../../cache/git/}
  18                         if ! test -L "$link" && ! test -e "$link"; then
  19                                 ln -s "$target" "$link"
  20                         fi
  21                 done
  22         )
  23 fi
  24
  25 # A previous version of the /var/lib/git/ transition code
  26 # left behind a symlink '/var/lib/git/*' -> '../../cache/git/*'.
  27 if test "$1" = upgrade &&
  28    dpkg --compare-versions "$2" eq '1:1.8.4~rc0-1' &&
  29    test -L '/var/lib/git/*'; then
  30         target=$(readlink '/var/lib/git/*')
  31         if test "$target" = '../../cache/git/*'; then
  32                 rm -f '/var/lib/git/*'
  33         fi
  34 fi