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rebase: use @{upstream} if no upstream specified

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'git rebase' without arguments is currently not supported. Make it
default to 'git rebase @{upstream}'. That is also what 'git pull
[--rebase]' defaults to, so it only makes sense that 'git rebase'
defaults to the same thing.

Defaulting to @{upstream} will make it possible to run e.g. 'git
rebase -i' without arguments, which is probably a quite common use
case. It also improves the scenario where you have multiple branches
that rebase against a remote-tracking branch, where you currently have
to choose between the extra network delay of 'git pull' or the
slightly awkward keys to enter 'git rebase @{u}'.

The error reporting when no upstream is configured for the current
branch or when no branch is checked out is reused from git-pull.sh. A
function is extracted into git-parse-remote.sh for this purpose.

Helped-by: Yann Dirson <ydirson@altern.org>
Helped-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Martin von Zweigbergk <martin.von.zweigbergk@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Martin von Zweigbergk
2011-02-09 20:54:02 -05:00
committed by Junio C Hamano
parent c71f8f3d50
commit 15a147e618
6 changed files with 85 additions and 46 deletions
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32
git-pull.sh
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@ -163,34 +163,10 @@ error_on_no_merge_candidates () {
echo "You asked to pull from the remote '$1', but did not specify"
echo "a branch. Because this is not the default configured remote"
echo "for your current branch, you must specify a branch on the command line."
elif [ -z "$curr_branch" ]; then
echo "You are not currently on a branch, so I cannot use any"
echo "'branch.<branchname>.merge' in your configuration file."
echo "Please specify which remote branch you want to use on the command"
echo "line and try again (e.g. 'git pull <repository> <refspec>')."
echo "See git-pull(1) for details."
elif [ -z "$upstream" ]; then
echo "You asked me to pull without telling me which branch you"
echo "want to $op_type $op_prep, and 'branch.${curr_branch}.merge' in"
echo "your configuration file does not tell me, either. Please"
echo "specify which branch you want to use on the command line and"
echo "try again (e.g. 'git pull <repository> <refspec>')."
echo "See git-pull(1) for details."
echo
echo "If you often $op_type $op_prep the same branch, you may want to"
echo "use something like the following in your configuration file:"
echo
echo " [branch \"${curr_branch}\"]"
echo " remote = <nickname>"
echo " merge = <remote-ref>"
test rebase = "$op_type" &&
echo " rebase = true"
echo
echo " [remote \"<nickname>\"]"
echo " url = <url>"
echo " fetch = <refspec>"
echo
echo "See git-config(1) for details."
elif [ -z "$curr_branch" -o -z "$upstream" ]; then
. git-parse-remote
error_on_missing_default_upstream "pull" $op_type $op_prep \
"git pull <repository> <refspec>"
else
echo "Your configuration specifies to $op_type $op_prep the ref '${upstream#refs/heads/}'"
echo "from the remote, but no such ref was fetched."