Use Daniel's read-tree in the merge strategy 'resolve'.

And rename the one Linus kept calling stupid, 'stupid'.

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

diff --git a/Makefile b/Makefile
index 7ef9861a7d6828f1622cb375f0b81e88306e91c3..41461fa8169df5553b8df47ea75f83ead4fb9ea1 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -74,7 +74,8 @@ SCRIPT_SH = \
        git-resolve.sh git-revert.sh git-sh-setup.sh git-status.sh \
        git-tag.sh git-verify-tag.sh git-whatchanged.sh git.sh \
        git-applymbox.sh git-applypatch.sh \
-       git-merge.sh git-merge-resolve.sh git-merge-octopus.sh
+       git-merge.sh git-merge-stupid.sh git-merge-octopus.sh \
+       git-merge-resolve.sh
 
 SCRIPT_PERL = \
        git-archimport.perl git-cvsimport.perl git-relink.perl \

diff --git a/git-merge-resolve.sh b/git-merge-resolve.sh
index f0a19b4c8a2ac63a7808bc54975d89a8e031aba1..e3b04a0e959676e513a7b7e902ea51927d76e2be 100755 (executable)
--- a/git-merge-resolve.sh
+++ b/git-merge-resolve.sh
@@ -1,8 +1,9 @@
 #!/bin/sh
 #
 # Copyright (c) 2005 Linus Torvalds
+# Copyright (c) 2005 Junio C Hamano
 #
-# Resolve two trees.
+# Resolve two trees, using enhancd multi-base read-tree.
 
 # The first parameters up to -- are merge bases; the rest are heads.
 bases= head= remotes= sep_seen=
@@ -30,41 +31,8 @@ case "$remotes" in
        exit 2 ;;
 esac
 
-# Find an optimum merge base if there are more than one candidates.
-case "$bases" in
-?*' '?*)
-       echo "Trying to find the optimum merge base."
-       G=.tmp-index$$
-       best=
-       best_cnt=-1
-       for c in $bases
-       do
-               rm -f $G
-               GIT_INDEX_FILE=$G git-read-tree -m $c $head $remotes \
-                        2>/dev/null || continue
-               # Count the paths that are unmerged.
-               cnt=`GIT_INDEX_FILE=$G git-ls-files --unmerged | wc -l`
-               if test $best_cnt -le 0 -o $cnt -le $best_cnt
-               then
-                       best=$c
-                       best_cnt=$cnt
-                       if test "$best_cnt" -eq 0
-                       then
-                               # Cannot do any better than all trivial merge.
-                               break
-                       fi
-               fi
-       done
-       rm -f $G
-       common="$best"
-       ;;
-*)
-       common="$bases"
-       ;;
-esac
-
 git-update-index --refresh 2>/dev/null
-git-read-tree -u -m $common $head $remotes || exit 2
+git-read-tree -u -m $bases $head $remotes || exit 2
 echo "Trying simple merge."
 if result_tree=$(git-write-tree  2>/dev/null)
 then

diff --git a/git-merge-stupid.sh b/git-merge-stupid.sh
new file mode 100755 (executable)
index 0000000..4faecb9
--- /dev/null
+++ b/git-merge-stupid.sh
@@ -0,0 +1,80 @@
+#!/bin/sh
+#
+# Copyright (c) 2005 Linus Torvalds
+#
+# Resolve two trees, 'stupid merge'.
+
+# The first parameters up to -- are merge bases; the rest are heads.
+bases= head= remotes= sep_seen=
+for arg
+do
+       case ",$sep_seen,$head,$arg," in
+       *,--,)
+               sep_seen=yes
+               ;;
+       ,yes,,*)
+               head=$arg
+               ;;
+       ,yes,*)
+               remotes="$remotes$arg "
+               ;;
+       *)
+               bases="$bases$arg "
+               ;;
+       esac
+done
+
+# Give up if we are given more than two remotes -- not handling octopus.
+case "$remotes" in
+?*' '?*)
+       exit 2 ;;
+esac
+
+# Find an optimum merge base if there are more than one candidates.
+case "$bases" in
+?*' '?*)
+       echo "Trying to find the optimum merge base."
+       G=.tmp-index$$
+       best=
+       best_cnt=-1
+       for c in $bases
+       do
+               rm -f $G
+               GIT_INDEX_FILE=$G git-read-tree -m $c $head $remotes \
+                        2>/dev/null || continue
+               # Count the paths that are unmerged.
+               cnt=`GIT_INDEX_FILE=$G git-ls-files --unmerged | wc -l`
+               if test $best_cnt -le 0 -o $cnt -le $best_cnt
+               then
+                       best=$c
+                       best_cnt=$cnt
+                       if test "$best_cnt" -eq 0
+                       then
+                               # Cannot do any better than all trivial merge.
+                               break
+                       fi
+               fi
+       done
+       rm -f $G
+       common="$best"
+       ;;
+*)
+       common="$bases"
+       ;;
+esac
+
+git-update-index --refresh 2>/dev/null
+git-read-tree -u -m $common $head $remotes || exit 2
+echo "Trying simple merge."
+if result_tree=$(git-write-tree  2>/dev/null)
+then
+       exit 0
+else
+       echo "Simple merge failed, trying Automatic merge."
+       if git-merge-index -o git-merge-one-file -a
+       then
+               exit 0
+       else
+               exit 1
+       fi
+fi

diff --git a/git-merge.sh b/git-merge.sh
index 9926e45d1a158c0f4dce1c442afa17fa0de3c94a..55b0c7269e9234a849e4abe7ced5999dbf5334b2 100755 (executable)
--- a/git-merge.sh
+++ b/git-merge.sh
@@ -12,10 +12,10 @@ usage () {
     die "git-merge [-n] [-s <strategy>]... <merge-message> <head> <remote>+"
 }
 
-# all_strategies='resolve multibase fredrik octopus'
+# all_strategies='resolve fredrik stupid octopus'
 
-all_strategies='resolve multibase octopus'
-default_strategies='resolve multibase octopus'
+all_strategies='resolve octopus stupid'
+default_strategies='resolve octopus'
 use_strategies=
 
 dropheads() {