[RFC/PATCH] Make git-recursive the default strategy for git-pull.

[Junio C Hamano <junkio@cox.net>]

This does two things:

 - It changes the hardcoded default merge strategy for two-head
   git-pull from resolve to recursive.

 - .git/config file acquires two configuration items.
   pull.twohead names the strategy for two-head case, and
   pull.octopus names the strategy for octopus merge.

IOW you are paranoid, you can have the following lines in your
.git/config file and keep using git-merge-resolve when pulling
one remote:

	[pull]
		twohead = resolve

OTOH, you can say this:

	[pull]
		twohead = resolve
		twohead = recursive

to try quicker resolve first, and when it fails, fall back to
recursive.

Signed-off-by: Junio C Hamano <junkio@cox.net>

---

  Linus Torvalds <torvalds@osdl.org> writes:

  > Hmm. True. The _really_ trivial in-index case triggers for me pretty 
  > often, but I haven't done any statistics. It might be only 50% of the 
  > time.
  >...
  > It's certainly an option to just do what I just did, namely use the 
  > default one until it breaks, and then just do "git reset --hard" and re-do 
  > the pull with "-s recursive". A bit sad, and it would be good to have 
  > coverage on the recursive strategy..

  Hopefully something like this would make people aware of
  recursive and give it a wider coverage and chance to mature.

 git-pull.sh |   16 ++++++++++++++--
 1 files changed, 14 insertions(+), 2 deletions(-)

applies-to: 75922cf23cc070e2d5220d961a8f645f1bc8bb60
3acc20beaf0df9ce11a1b7aabf8c9dc7507a9b44
diff --git a/git-pull.sh b/git-pull.sh
index 2358af6..3b875ad 100755
--- a/git-pull.sh
+++ b/git-pull.sh
@@ -79,10 +79,22 @@ case "$merge_head" in
 	exit 0
 	;;
 ?*' '?*)
-	strategy_default_args='-s octopus'
+	var=`git-var -l | sed -ne 's/^pull\.octopus=/-s /p'`
+	if test '' = "$var"
+	then
+		strategy_default_args='-s octopus'
+	else
+		strategy_default_args=$var
+	fi
 	;;
 *)
-	strategy_default_args='-s resolve'
+	var=`git-var -l | sed -ne 's/^pull\.twohead=/-s /p'`
+	if test '' = "$var"
+	then
+		strategy_default_args='-s recursive'
+	else
+		strategy_default_args=$var
+	fi
 	;;
 esac
 
---
0.99.9.GIT