Rework pretty_print_commit to use strbufs instead of custom buffers.

diff --git a/git-sh-setup.sh b/git-sh-setup.sh
index 7bef43f39d0d74497104351d2f40258dfccce104..185c5c6c95df389e0d7f39f47feeabbe67124e80 100755 (executable)
--- a/git-sh-setup.sh
+++ b/git-sh-setup.sh
@@ -29,7 +29,8 @@ set_reflog_action() {
 }
 
 git_editor() {
-       GIT_EDITOR=${GIT_EDITOR:-$(git config core.editor || echo ${VISUAL:-${EDITOR}})}
+       : "${GIT_EDITOR:=$(git config core.editor)}"
+       : "${GIT_EDITOR:=${VISUAL:-${EDITOR}}}"
        case "$GIT_EDITOR,$TERM" in
        ,dumb)
                echo >&2 "No editor specified in GIT_EDITOR, core.editor, VISUAL,"
@@ -40,7 +41,7 @@ git_editor() {
                exit 1
                ;;
        esac
-       "${GIT_EDITOR:-vi}" "$1"
+       eval "${GIT_EDITOR:=vi}" '"$@"'
 }
 
 is_bare_repository () {
@@ -115,6 +116,16 @@ then
                exit $exit
        }
 else
-       GIT_DIR=$(git rev-parse --git-dir) || exit
+       GIT_DIR=$(git rev-parse --git-dir) || {
+           exit=$?
+           echo >&2 "Failed to find a valid git directory."
+           exit $exit
+       }
 fi
+
+test -n "$GIT_DIR" && GIT_DIR=$(cd "$GIT_DIR" && pwd) || {
+    echo >&2 "Unable to determine absolute path of git directory"
+    exit 1
+}
+
 : ${GIT_OBJECT_DIRECTORY="$GIT_DIR/objects"}