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authorJunio C Hamano <junkio@cox.net>2006-12-18 01:57:19 (GMT)
committerJunio C Hamano <junkio@cox.net>2006-12-18 01:57:19 (GMT)
commited9f7c954c26ec6d517bdca3d8e4b895278d1b2b (patch)
tree4bb8f0ddd83046127d3e984665329f17e0a8dafc /git-fetch.sh
parentee6002aa429272871733b8fbc99a9e6df3e150f5 (diff)
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git-fetch: Avoid reading packed refs over and over again
When checking which tags to fetch, the old code used to call git-show-ref --verify for each remote tag. Since reading even packed refs is not a cheap operation when there are a lot of local refs, the code became quite slow. This fixes it by teaching git-show-ref to filter out existing refs using a new mode of operation of git-show-ref. Signed-off-by: Junio C Hamano <junkio@cox.net>
Diffstat (limited to 'git-fetch.sh')
-rwxr-xr-xgit-fetch.sh12
1 files changed, 3 insertions, 9 deletions
diff --git a/git-fetch.sh b/git-fetch.sh
index fb35815..38101a6 100755
--- a/git-fetch.sh
+++ b/git-fetch.sh
@@ -242,7 +242,7 @@ esac
reflist=$(get_remote_refs_for_fetch "$@")
if test "$tags"
then
- taglist=`IFS=" " &&
+ taglist=`IFS=' ' &&
echo "$ls_remote_result" |
while read sha1 name
do
@@ -438,17 +438,11 @@ case "$no_tags$tags" in
*:refs/*)
# effective only when we are following remote branch
# using local tracking branch.
- taglist=$(IFS=" " &&
+ taglist=$(IFS=' ' &&
echo "$ls_remote_result" |
- sed -n -e 's|^\('"$_x40"'\) \(refs/tags/.*\)^{}$|\1 \2|p' \
- -e 's|^\('"$_x40"'\) \(refs/tags/.*\)$|\1 \2|p' |
+ git-show-ref --exclude-existing=refs/tags/ |
while read sha1 name
do
- git-show-ref --verify --quiet -- "$name" && continue
- git-check-ref-format "$name" || {
- echo >&2 "warning: tag ${name} ignored"
- continue
- }
git-cat-file -t "$sha1" >/dev/null 2>&1 || continue
echo >&2 "Auto-following $name"
echo ".${name}:${name}"