GIT-VERSION-FILE: check ./version first.

[thirdparty/git.git] / git-sh-setup.sh

diff --git a/git-sh-setup.sh b/git-sh-setup.sh
index b4f10224baf8328a9d6efa761b025450df414bb2..f24c7f2d23c13e9874308a019f3c0f93225de3c0 100755 (executable)
--- a/git-sh-setup.sh
+++ b/git-sh-setup.sh
@@ -11,13 +11,73 @@
 # exporting it.
 unset CDPATH
 
-: ${GIT_DIR=.git}
-: ${GIT_OBJECT_DIRECTORY="$GIT_DIR/objects"}
-
 die() {
        echo >&2 "$@"
        exit 1
 }
 
+usage() {
+       die "Usage: $0 $USAGE"
+}
+
+set_reflog_action() {
+       if [ -z "${GIT_REFLOG_ACTION:+set}" ]
+       then
+               GIT_REFLOG_ACTION="$*"
+               export GIT_REFLOG_ACTION
+       fi
+}
+
+is_bare_repository () {
+       git-config --bool --get core.bare ||
+       case "$GIT_DIR" in
+       .git | */.git) echo false ;;
+       *) echo true ;;
+       esac
+}
+
+cd_to_toplevel () {
+       cdup=$(git-rev-parse --show-cdup)
+       if test ! -z "$cdup"
+       then
+               cd "$cdup" || {
+                       echo >&2 "Cannot chdir to $cdup, the toplevel of the working tree"
+                       exit 1
+               }
+       fi
+}
+
+require_work_tree () {
+       test $(is_bare_repository) = false &&
+       test $(git-rev-parse --is-inside-git-dir) = false ||
+       die "fatal: $0 cannot be used without a working tree."
+}
+
+if [ -z "$LONG_USAGE" ]
+then
+       LONG_USAGE="Usage: $0 $USAGE"
+else
+       LONG_USAGE="Usage: $0 $USAGE
+
+$LONG_USAGE"
+fi
+
+case "$1" in
+       -h|--h|--he|--hel|--help)
+       echo "$LONG_USAGE"
+       exit
+esac
+
 # Make sure we are in a valid repository of a vintage we understand.
-GIT_DIR="$GIT_DIR" git-var GIT_AUTHOR_IDENT >/dev/null || exit
+if [ -z "$SUBDIRECTORY_OK" ]
+then
+       : ${GIT_DIR=.git}
+       GIT_DIR=$(GIT_DIR="$GIT_DIR" git-rev-parse --git-dir) || {
+               exit=$?
+               echo >&2 "You need to run this command from the toplevel of the working tree."
+               exit $exit
+       }
+else
+       GIT_DIR=$(git-rev-parse --git-dir) || exit
+fi
+: ${GIT_OBJECT_DIRECTORY="$GIT_DIR/objects"}