builtin/apply: move 'update_index' global into 'struct apply_state'

diff --git a/git-merge-octopus.sh b/git-merge-octopus.sh
index 1dadbb49666c6d796df76babbfd291a2de4357e4..dc2fd1b5a47b3d759aa251549d2c158713ccfa4e 100755 (executable)
--- a/git-merge-octopus.sh
+++ b/git-merge-octopus.sh
@@ -44,9 +44,14 @@ esac
 # MRC is the current "merge reference commit"
 # MRT is the current "merge result tree"
 
-MRC=$head MSG= PARENT="-p $head"
+if ! git diff-index --quiet --cached HEAD --
+then
+    echo "Error: Your local changes to the following files would be overwritten by merge"
+    git diff-index --cached --name-only HEAD -- | sed -e 's/^/    /'
+    exit 2
+fi
+MRC=$(git rev-parse --verify -q $head)
 MRT=$(git write-tree)
-CNT=1 ;# counting our head
 NON_FF_MERGE=0
 OCTOPUS_FAILURE=0
 for SHA1 in $remotes
@@ -61,19 +66,22 @@ do
                exit 2
        esac
 
+       eval pretty_name=\${GITHEAD_$SHA1:-$SHA1}
+       if test "$SHA1" = "$pretty_name"
+       then
+               SHA1_UP="$(echo "$SHA1" | tr a-z A-Z)"
+               eval pretty_name=\${GITHEAD_$SHA1_UP:-$pretty_name}
+       fi
        common=$(git merge-base --all $SHA1 $MRC) ||
-               die "Unable to find common commit with $SHA1"
+               die "Unable to find common commit with $pretty_name"
 
        case "$LF$common$LF" in
        *"$LF$SHA1$LF"*)
-               echo "Already up-to-date with $SHA1"
+               echo "Already up-to-date with $pretty_name"
                continue
                ;;
        esac
 
-       CNT=`expr $CNT + 1`
-       PARENT="$PARENT -p $SHA1"
-
        if test "$common,$NON_FF_MERGE" = "$MRC,0"
        then
                # The first head being merged was a fast-forward.
@@ -81,7 +89,7 @@ do
                # tree as the intermediate result of the merge.
                # We still need to count this as part of the parent set.
 
-               echo "Fast forwarding to: $SHA1"
+               echo "Fast-forwarding to: $pretty_name"
                git read-tree -u -m $head $SHA1 || exit
                MRC=$SHA1 MRT=$(git write-tree)
                continue
@@ -89,7 +97,7 @@ do
 
        NON_FF_MERGE=1
 
-       echo "Trying simple merge with $SHA1"
+       echo "Trying simple merge with $pretty_name"
        git read-tree -u -m --aggressive  $common $MRT $SHA1 || exit 2
        next=$(git write-tree 2>/dev/null)
        if test $? -ne 0