git-sh-setup.sh

   1 #!/bin/sh
   2 #
   3 # This is included in commands that either have to be run from the toplevel
   4 # of the repository, or with GIT_DIR environment variable properly.
   5 # If the GIT_DIR does not look like the right correct git-repository,
   6 # it dies.
   7
   8 # Having this variable in your environment would break scripts because
   9 # you would cause "cd" to be be taken to unexpected places.  If you
  10 # like CDPATH, define it for your interactive shell sessions without
  11 # exporting it.
  12 unset CDPATH
  13
  14 die() {
  15         echo >&2 "$@"
  16         exit 1
  17 }
  18
  19 usage() {
  20         die "Usage: $0 $USAGE"
  21 }
  22
  23 set_reflog_action() {
  24         if [ -z "${GIT_REFLOG_ACTION:+set}" ]
  25         then
  26                 GIT_REFLOG_ACTION="$*"
  27                 export GIT_REFLOG_ACTION
  28         fi
  29 }
  30
  31 if [ -z "$LONG_USAGE" ]
  32 then
  33         LONG_USAGE="Usage: $0 $USAGE"
  34 else
  35         LONG_USAGE="Usage: $0 $USAGE
  36
  37 $LONG_USAGE"
  38 fi
  39
  40 case "$1" in
  41         -h|--h|--he|--hel|--help)
  42         echo "$LONG_USAGE"
  43         exit
  44 esac
  45
  46 # Make sure we are in a valid repository of a vintage we understand.
  47 if [ -z "$SUBDIRECTORY_OK" ]
  48 then
  49         : ${GIT_DIR=.git}
  50         GIT_DIR=$(GIT_DIR="$GIT_DIR" git-rev-parse --git-dir) || exit
  51 else
  52         GIT_DIR=$(git-rev-parse --git-dir) || exit
  53 fi
  54 : ${GIT_OBJECT_DIRECTORY="$GIT_DIR/objects"}