Make for-each-ref's grab_date() support per-atom formatting

[git.git] / git-merge.sh

diff --git a/git-merge.sh b/git-merge.sh
index 5ccf28251d51d3ee10675d48cf04829f5d6d8c06..6c513dcbdf44036b0207c276e765a87eceb7aa77 100755 (executable)
--- a/git-merge.sh
+++ b/git-merge.sh
@@ -19,10 +19,12 @@ LF='
 all_strategies='recur recursive octopus resolve stupid ours subtree'
 default_twohead_strategies='recursive'
 default_octopus_strategies='octopus'
-no_trivial_merge_strategies='ours subtree'
+no_fast_forward_strategies='subtree ours'
+no_trivial_strategies='recursive recur subtree ours'
 use_strategies=
 
-index_merge=t
+allow_fast_forward=t
+allow_trivial_merge=t
 
 dropsave() {
        rm -f -- "$GIT_DIR/MERGE_HEAD" "$GIT_DIR/MERGE_MSG" \
@@ -95,6 +97,19 @@ finish () {
                fi
                ;;
        esac
+
+       # Run a post-merge hook
+        if test -x "$GIT_DIR"/hooks/post-merge
+        then
+           case "$squash" in
+           t)
+                "$GIT_DIR"/hooks/post-merge 1
+               ;;
+           '')
+                "$GIT_DIR"/hooks/post-merge 0
+               ;;
+           esac
+        fi
 }
 
 merge_name () {
@@ -120,7 +135,7 @@ merge_name () {
 case "$#" in 0) usage ;; esac
 
 have_message=
-while case "$#" in 0) break ;; esac
+while test $# != 0
 do
        case "$1" in
        -n|--n|--no|--no-|--no-s|--no-su|--no-sum|--no-summ|\
@@ -265,11 +280,20 @@ esac
 
 for s in $use_strategies
 do
-       for nt in $no_trivial_merge_strategies
+       for ss in $no_fast_forward_strategies
        do
                case " $s " in
-               *" $nt "*)
-                       index_merge=f
+               *" $ss "*)
+                       allow_fast_forward=f
+                       break
+                       ;;
+               esac
+       done
+       for ss in $no_trivial_strategies
+       do
+               case " $s " in
+               *" $ss "*)
+                       allow_trivial_merge=f
                        break
                        ;;
                esac
@@ -286,10 +310,7 @@ case "$#" in
 esac
 echo "$head" >"$GIT_DIR/ORIG_HEAD"
 
-case "$index_merge,$#,$common,$no_commit" in
-f,*)
-       # We've been told not to try anything clever.  Skip to real merge.
-       ;;
+case "$allow_fast_forward,$#,$common,$no_commit" in
 ?,*,'',*)
        # No common ancestors found. We need a real merge.
        ;;
@@ -299,7 +320,7 @@ f,*)
        finish_up_to_date "Already up-to-date."
        exit 0
        ;;
-?,1,"$head",*)
+t,1,"$head",*)
        # Again the most common case of merging one remote.
        echo "Updating $(git rev-parse --short $head)..$(git rev-parse --short $1)"
        git update-index --refresh 2>/dev/null
@@ -322,11 +343,8 @@ f,*)
        # We are not doing octopus, not fast forward, and have only
        # one common.
        git update-index --refresh 2>/dev/null
-       case " $use_strategies " in
-       *' recursive '*|*' recur '*)
-               : run merge later
-               ;;
-       *)
+       case "$allow_trivial_merge" in
+       t)
                # See if it is really trivial.
                git var GIT_COMMITTER_IDENT >/dev/null || exit
                echo "Trying really trivial in-index merge..."