git diff too slow for a file

diff --git a/git-sh-setup.sh b/git-sh-setup.sh
index cf864a62738292cdd27d4461221369ef034516c5..6131670860514c215a6b9b7417dd05c3124e81b4 100755 (executable)
--- a/git-sh-setup.sh
+++ b/git-sh-setup.sh
@@ -107,6 +107,19 @@ git_editor() {
        eval "$GIT_EDITOR" '"$@"'
 }
 
+git_pager() {
+       if test -t 1
+       then
+               GIT_PAGER=$(git var GIT_PAGER)
+       else
+               GIT_PAGER=cat
+       fi
+       : ${LESS=-FRSX}
+       export LESS
+
+       eval "$GIT_PAGER" '"$@"'
+}
+
 sane_grep () {
        GREP_OPTIONS= LC_ALL=C grep "$@"
 }
@@ -128,7 +141,7 @@ cd_to_toplevel () {
 }
 
 require_work_tree () {
-       test $(git rev-parse --is-inside-work-tree) = true ||
+       test "$(git rev-parse --is-inside-work-tree 2>/dev/null)" = true ||
        die "fatal: $0 cannot be used without a working tree."
 }