builtin-bundle - use buffered reads for bundle header

diff --git a/git-sh-setup.sh b/git-sh-setup.sh
index c51985e4c36022a1f58146e49cc82336c39df05a..8cbd153b62265b8fbbd2dd73fc4089fa26dbc669 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 () {
@@ -59,8 +60,7 @@ cd_to_toplevel () {
 }
 
 require_work_tree () {
-       test $(git rev-parse --is-inside-work-tree) = true &&
-       test $(git rev-parse --is-inside-git-dir) = false ||
+       test $(git rev-parse --is-inside-work-tree) = true ||
        die "fatal: $0 cannot be used without a working tree."
 }