lstat_cache(): print a warning if doing ping-pong between cache types

diff --git a/git-pull.sh b/git-pull.sh
index 809e537a4d81233966aad23df11c13931d6250c1..2c7f432dc04254dcb9906f4d078eb16d195848ca 100755 (executable)
--- a/git-pull.sh
+++ b/git-pull.sh
@@ -16,13 +16,17 @@ cd_to_toplevel
 test -z "$(git ls-files -u)" ||
        die "You are in the middle of a conflicted merge."
 
-strategy_args= no_stat= no_commit= squash= no_ff= log_arg=
+strategy_args= no_stat= no_commit= squash= no_ff= log_arg= verbosity=
 curr_branch=$(git symbolic-ref -q HEAD)
 curr_branch_short=$(echo "$curr_branch" | sed "s|refs/heads/||")
 rebase=$(git config --bool branch.$curr_branch_short.rebase)
 while :
 do
        case "$1" in
+       -q|--quiet)
+               verbosity="$verbosity -q" ;;
+       -v|--verbose)
+               verbosity="$verbosity -v" ;;
        -n|--no-stat|--no-summary)
                no_stat=-n ;;
        --stat|--summary)
@@ -107,9 +111,9 @@ error_on_no_merge_candidates () {
 }
 
 test true = "$rebase" && {
-       git update-index --refresh &&
-       git diff-files --quiet &&
-       git diff-index --cached --quiet HEAD -- ||
+       git update-index --ignore-submodules --refresh &&
+       git diff-files --ignore-submodules --quiet &&
+       git diff-index --ignore-submodules --cached --quiet HEAD -- ||
        die "refusing to pull with rebase: your working tree is not up-to-date"
 
        . git-parse-remote &&
@@ -117,14 +121,14 @@ test true = "$rebase" && {
        test -z "$origin" && origin=$(get_default_remote)
        reflist="$(get_remote_refs_for_fetch "$@" 2>/dev/null |
                sed "s|refs/heads/\(.*\):|\1|")" &&
-       oldremoteref="$(git rev-parse --verify \
-               "refs/remotes/$origin/$reflist" 2>/dev/null)"
+       oldremoteref="$(git rev-parse -q --verify \
+               "refs/remotes/$origin/$reflist")"
 }
-orig_head=$(git rev-parse --verify HEAD 2>/dev/null)
-git-fetch --update-head-ok "$@" || exit 1
+orig_head=$(git rev-parse -q --verify HEAD)
+git fetch $verbosity --update-head-ok "$@" || exit 1
 
-curr_head=$(git rev-parse --verify HEAD 2>/dev/null)
-if test "$curr_head" != "$orig_head"
+curr_head=$(git rev-parse -q --verify HEAD)
+if test -n "$orig_head" && test "$curr_head" != "$orig_head"
 then
        # The fetch involved updating the current branch.
 
@@ -172,7 +176,7 @@ esac
 
 if test -z "$orig_head"
 then
-       git update-ref -m "initial pull" HEAD $merge_head "" &&
+       git update-ref -m "initial pull" HEAD $merge_head "$curr_head" &&
        git read-tree --reset -u HEAD || exit 1
        exit
 fi
@@ -182,4 +186,4 @@ test true = "$rebase" &&
        exec git-rebase $strategy_args --onto $merge_head \
        ${oldremoteref:-$merge_head}
 exec git-merge $no_stat $no_commit $squash $no_ff $log_arg $strategy_args \
-       "$merge_name" HEAD $merge_head
+       "$merge_name" HEAD $merge_head $verbosity