templates/hooks--update.sample: use a lowercase "usage:" string

diff --git a/git-merge-one-file.sh b/git-merge-one-file.sh
index d067894bf45fd0a50513e196ea2a5e671d901681..3373c040d4aae221386fac5ec2cd9a29344c1840 100755 (executable)
--- a/git-merge-one-file.sh
+++ b/git-merge-one-file.sh
@@ -18,10 +18,15 @@
 
 USAGE='<orig blob> <our blob> <their blob> <path>'
 USAGE="$USAGE <orig mode> <our mode> <their mode>"
-LONG_USAGE="Usage: git merge-one-file $USAGE
+LONG_USAGE="usage: git merge-one-file $USAGE
 
 Blob ids and modes should be empty for missing files."
 
+SUBDIRECTORY_OK=Yes
+. git-sh-setup
+cd_to_toplevel
+require_work_tree
+
 if ! test "$#" -eq 7
 then
        echo "$LONG_USAGE"
@@ -107,12 +112,12 @@ case "${1:-.}${2:-.}${3:-.}" in
                # remove lines that are unique to ours.
                orig=`git-unpack-file $2`
                sz0=`wc -c <"$orig"`
-               diff -u -La/$orig -Lb/$orig $orig $src2 | git apply --no-add
+               @@DIFF@@ -u -La/$orig -Lb/$orig $orig $src2 | git apply --no-add
                sz1=`wc -c <"$orig"`
 
                # If we do not have enough common material, it is not
                # worth trying two-file merge using common subsections.
-               expr "$sz0" \< "$sz1" \* 2 >/dev/null || : >$orig
+               expr $sz0 \< $sz1 \* 2 >/dev/null || : >$orig
                ;;
        *)
                echo "Auto-merging $4"
@@ -132,7 +137,7 @@ case "${1:-.}${2:-.}${3:-.}" in
 
        # Create the working tree file, using "our tree" version from the
        # index, and then store the result of the merge.
-       git checkout-index -f --stage=2 -- "$4" && cat "$src1" >"$4"
+       git checkout-index -f --stage=2 -- "$4" && cat "$src1" >"$4" || exit 1
        rm -f -- "$orig" "$src1" "$src2"
 
        if [ "$6" != "$7" ]; then