Teach rebase -i about --preserve-merges
[gitweb.git] / git-sh-setup.sh
index 025ef2d5f6b37d89dab1d602e1d8d1a80ab7f42e..d861db3b2807c1c23141f5e7d346a694104b6a21 100755 (executable)
@@ -20,6 +20,66 @@ 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."
+}
+
+get_author_ident_from_commit () {
+       pick_author_script='
+       /^author /{
+               s/'\''/'\''\\'\'\''/g
+               h
+               s/^author \([^<]*\) <[^>]*> .*$/\1/
+               s/'\''/'\''\'\'\''/g
+               s/.*/GIT_AUTHOR_NAME='\''&'\''/p
+
+               g
+               s/^author [^<]* <\([^>]*\)> .*$/\1/
+               s/'\''/'\''\'\'\''/g
+               s/.*/GIT_AUTHOR_EMAIL='\''&'\''/p
+
+               g
+               s/^author [^<]* <[^>]*> \(.*\)$/\1/
+               s/'\''/'\''\'\'\''/g
+               s/.*/GIT_AUTHOR_DATE='\''&'\''/p
+
+               q
+       }
+       '
+       encoding=$(git config i18n.commitencoding || echo UTF-8)
+       git show -s --pretty=raw --encoding="$encoding" "$1" |
+       LANG=C LC_ALL=C sed -ne "$pick_author_script"
+}
+
 if [ -z "$LONG_USAGE" ]
 then
        LONG_USAGE="Usage: $0 $USAGE"
@@ -30,22 +90,21 @@ $LONG_USAGE"
 fi
 
 case "$1" in
-       --h|--he|--hel|--help)
+       -h|--h|--he|--hel|--help)
        echo "$LONG_USAGE"
        exit
 esac
 
+# Make sure we are in a valid repository of a vintage we understand.
 if [ -z "$SUBDIRECTORY_OK" ]
 then
        : ${GIT_DIR=.git}
-       : ${GIT_OBJECT_DIRECTORY="$GIT_DIR/objects"}
-
-       # Make sure we are in a valid repository of a vintage we understand.
-       GIT_DIR="$GIT_DIR" git repo-config --get core.nosuch >/dev/null
-       if test $? = 128
-       then
-           exit
-       fi
+       GIT_DIR=$(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"}