git-sh-setup.sh

   1 #!/bin/sh
   2 #
   3 # Set up GIT_DIR and GIT_OBJECT_DIRECTORY
   4 # and return true if everything looks ok
   5 #
   6 : ${GIT_DIR=.git}
   7 : ${GIT_OBJECT_DIRECTORY="$GIT_DIR/objects"}
   8
   9 # Having this variable in your environment would break scripts because
  10 # you would cause "cd" to be be taken to unexpected places.  If you
  11 # like CDPATH, define it for your interactive shell sessions without
  12 # exporting it.
  13 unset CDPATH
  14
  15 die() {
  16         echo "$@" >&2
  17         exit 1
  18 }
  19
  20 check_clean_tree() {
  21     dirty1_=`git-update-index -q --refresh` && {
  22     dirty2_=`git-diff-index --name-only --cached HEAD`
  23     case "$dirty2_" in '') : ;; *) (exit 1) ;; esac
  24     } || {
  25         echo >&2 "$dirty1_"
  26         echo "$dirty2_" | sed >&2 -e 's/^/modified: /'
  27         (exit 1)
  28     }
  29 }
  30
  31 [ -h "$GIT_DIR/HEAD" ] &&
  32 [ -d "$GIT_DIR/refs" ] &&
  33 [ -d "$GIT_OBJECT_DIRECTORY/00" ]