From cd67e4d46b122b161f2ad7d943e4ae7aa8df6cf5 Mon Sep 17 00:00:00 2001
From: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Date: Wed, 28 Nov 2007 13:11:07 +0000
Subject: [PATCH] Teach 'git pull' about --rebase
When calling 'git pull' with the '--rebase' option, it performs a
fetch + rebase instead of a fetch + merge.
This behavior is more desirable than fetch + pull when a topic branch
is ready to be submitted and needs to be update.
fetch + rebase might also be considered a better workflow with shared
repositories in any case, or for contributors to a centrally managed
repository, such as WINE's.
As a convenience, you can set the default behavior for a branch by
defining the config variable branch.<name>.rebase, which is
interpreted as a bool. This setting can be overridden on the command
line by --rebase and --no-rebase.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
Documentation/config.txt | 7 +++++++
Documentation/git-pull.txt | 10 ++++++++++
git-pull.sh | 11 ++++++++++-
t/t5520-pull.sh | 22 ++++++++++++++++++++++
4 files changed, 49 insertions(+), 1 deletion(-)
diff --git a/Documentation/config.txt b/Documentation/config.txt
index 39d1ef5298..4124ad2970 100644
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -346,6 +346,13 @@ branch.<name>.mergeoptions::
option values containing whitespace characters are currently not
supported.
+branch.<name>.rebase::
+ When true, rebase the branch <name> on top of the fetched branch,
+ instead of merging the default branch from the default remote.
+ *NOTE*: this is a possibly dangerous operation; do *not* use
+ it unless you understand the implications (see gitlink:git-rebase[1]
+ for details).
+
clean.requireForce::
A boolean to make git-clean do nothing unless given -f
or -n. Defaults to true.
diff --git a/Documentation/git-pull.txt b/Documentation/git-pull.txt
index e1eb2c1d00..d4d26afea0 100644
--- a/Documentation/git-pull.txt
+++ b/Documentation/git-pull.txt
@@ -33,6 +33,16 @@ include::urls-remotes.txt[]
include::merge-strategies.txt[]
+\--rebase::
+ Instead of a merge, perform a rebase after fetching.
+ *NOTE:* This is a potentially _dangerous_ mode of operation.
+ It rewrites history, which does not bode well when you
+ published that history already. Do *not* use this option
+ unless you have read gitlink:git-rebase[1] carefully.
+
+\--no-rebase::
+ Override earlier \--rebase.
+
DEFAULT BEHAVIOUR
-----------------
diff --git a/git-pull.sh b/git-pull.sh
index 30fdc57310..698e82b116 100755
--- a/git-pull.sh
+++ b/git-pull.sh
@@ -17,6 +17,9 @@ test -z "$(git ls-files -u)" ||
die "You are in the middle of a conflicted merge."
strategy_args= no_summary= no_commit= squash= no_ff=
+curr_branch=$(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 "$1" in
@@ -52,6 +55,12 @@ do
esac
strategy_args="${strategy_args}-s $strategy "
;;
+ -r|--r|--re|--reb|--reba|--rebas|--rebase)
+ rebase=true
+ ;;
+ --no-r|--no-re|--no-reb|--no-reba|--no-rebas|--no-rebase)
+ rebase=false
+ ;;
-h|--h|--he|--hel|--help)
usage
;;
@@ -95,7 +104,6 @@ merge_head=$(sed -e '/ not-for-merge /d' \
case "$merge_head" in
'')
- curr_branch=$(git symbolic-ref -q HEAD)
case $? in
0) ;;
1) echo >&2 "You are not currently on a branch; you must explicitly"
@@ -142,5 +150,6 @@ then
fi
merge_name=$(git fmt-merge-msg <"$GIT_DIR/FETCH_HEAD") || exit
+test true = "$rebase" && exec git-rebase $merge_head
exec git-merge $no_summary $no_commit $squash $no_ff $strategy_args \
"$merge_name" HEAD $merge_head
diff --git a/t/t5520-pull.sh b/t/t5520-pull.sh
index 93eaf2c154..52b3a0c6dd 100755
--- a/t/t5520-pull.sh
+++ b/t/t5520-pull.sh
@@ -53,4 +53,26 @@ test_expect_success 'the default remote . should not break explicit pull' '
test `cat file` = modified
'
+test_expect_success '--rebase' '
+ git branch to-rebase &&
+ echo modified again > file &&
+ git commit -m file file &&
+ git checkout to-rebase &&
+ echo new > file2 &&
+ git add file2 &&
+ git commit -m "new file" &&
+ git tag before-rebase &&
+ git pull --rebase . copy &&
+ test $(git rev-parse HEAD^) = $(git rev-parse copy) &&
+ test new = $(git show HEAD:file2)
+'
+
+test_expect_success 'branch.to-rebase.rebase' '
+ git reset --hard before-rebase &&
+ git config branch.to-rebase.rebase 1 &&
+ git pull . copy &&
+ test $(git rev-parse HEAD^) = $(git rev-parse copy) &&
+ test new = $(git show HEAD:file2)
+'
+
test_done
--
2.40.0