[RFC/PATCH] git-fetch: Use already fetched branch with the --local flag.
- From
- Santi Béjar <sbejar@gmail.com>
- Date
- Oct 16, 2006, 13:40 UTC
- Message-ID
- <87ac3w8jl1.fsf@gmail.com>
It allows to separate when you fetch from when you merge. So, a "git pull" can be:
$ git fetch $ git pull --local
and the pull call can be made later. This is usefull when you have multiple branches and you want to merge the same "upstream" branch, or when you are offline but you have already fetched the remote branch.
Note that this is different from:
$ git fetch $ git pull . origin
(1) you do not have to tell explicitly the branch to merge (2) the commit message is exactly as with "git pull"
Signed-off-by: Santi Béjar <sbejar@gmail.com> --- Documentation/fetch-options.txt | 3 +++ git-fetch.sh | 25 +++++++++++++++++++------ git-parse-remote.sh | 22 ++++++++++++++++++++++ 3 files changed, 44 insertions(+), 6 deletions(-)
diff --git a/Documentation/fetch-options.txt b/Documentation/fetch-options.txt index 13f34d3..3a6cb3d 100644 --- a/Documentation/fetch-options.txt +++ b/Documentation/fetch-options.txt @@ -39,3 +39,6 @@ check. Note that fetching into the current branch will not update the index and working directory, so use it with care. +\--local:: + Do not fetch from the remote repository. Use the already fetched + branches to program the merge for `git-pull`. diff --git a/git-fetch.sh b/git-fetch.sh index 79222fb..5ff800a 100755 --- a/git-fetch.sh +++ b/git-fetch.sh @@ -21,6 +21,7 @@ update_head_ok= exec= upload_pack= keep=--thin +local_fetch= while case "$#" in 0) break ;; esac do case "$1" in @@ -56,6 +57,9 @@ do --reflog-action=*) rloga=`expr "z$1" : 'z-[^=]*=\(.*\)'` ;; + --local) + local_fetch=t + ;; -*) usage ;; @@ -80,6 +84,10 @@ refs= rref= rsync_slurped_objects= +[ "$local_fetch" = t ] && [ "$remote_nick" = "$remote" ] && \ + [ "$remote" != "." ] && \ + die "Flag --local only compatible with remote shorthands" + rloga="$rloga $remote_nick" test "$remote_nick" = "$remote" || rloga="$rloga $remote" @@ -285,8 +293,8 @@ fetch_main () { rref="$rref$LF$remote_name" # There are transports that can fetch only one head at a time... - case "$remote" in - http://* | https://* | ftp://*) + case "$local_fetch,$remote" in + ,http://* | ,https://* | ,ftp://*) if [ -n "$GIT_SSL_NO_VERIFY" ]; then curl_extra_args="-k" fi @@ -313,7 +321,7 @@ fetch_main () { echo >&2 Fetching "$remote_name from $remote" using http git-http-fetch -v -a "$head" "$remote/" || exit ;; - rsync://*) + ,rsync://*) TMP_HEAD="$GIT_DIR/TMP_HEAD" rsync -L -q "$remote/$remote_name" "$TMP_HEAD" || exit 1 head=$(git-rev-parse --verify TMP_HEAD) @@ -343,6 +351,11 @@ fetch_main () { rsync_slurped_objects=t } ;; + t,*) + [ -z "$local_name" ] &&\ + local_name=$(get_ref_for_remote_branch "$remote_nick" "$remote_name") + head=$(git-rev-parse --verify $local_name^0) || exit + ;; *) # We will do git native transport with just one call later. continue ;; @@ -353,8 +366,8 @@ fetch_main () { done - case "$remote" in - http://* | https://* | ftp://* | rsync://* ) + case "$local_fetch,$remote" in + ,http://* | ,https://* | ,ftp://* | ,rsync://* | t,*) ;; # we are already done. *) ( : subshell because we muck with IFS @@ -406,7 +419,7 @@ fetch_main () { fetch_main "$reflist" # automated tag following -case "$no_tags$tags" in +case "$no_tags$tags$local_fetch" in '') case "$reflist" in *:refs/*) diff --git a/git-parse-remote.sh b/git-parse-remote.sh index c325ef7..679f73c 100755 --- a/git-parse-remote.sh +++ b/git-parse-remote.sh @@ -236,3 +236,25 @@ resolve_alternates () { esac done } + +get_ref_for_remote_branch (){ + data_source=$(get_data_source "$1") + case "$data_source" in + '' | config-partial | branches | branches-partial) + test "$1" = . && echo $2 + ;; + config) + ref=$(git-repo-config --get-all "remote.$1.fetch" |\ + grep "^$2:") + expr "z$ref" : 'z[^:]*:\(.*\)' + ;; + remotes) + ref=$(sed -ne '/^Pull: */{ + s///p + }' "$GIT_DIR/remotes/$1" | grep "$2:") + expr "z$ref" : 'z[^:]*:\(.*\)' + ;; + *) + die "internal error: get-ref-for-remote-branch $1 $2" ;; + esac +}
-- 1.4.3.rc2.ga442