git-commit: add a prepare-commit-msg hook

diff --git a/t/diff-lib.sh b/t/diff-lib.sh
index a912f435aa67d7b2cde09f0b8c9855442c6c2377..7dc6d7eb1e13a1831b61c70269ce593457badf0c 100644 (file)
--- a/t/diff-lib.sh
+++ b/t/diff-lib.sh
@@ -11,7 +11,7 @@ compare_diff_raw () {
 
     sed -e "$sanitize_diff_raw" <"$1" >.tmp-1
     sed -e "$sanitize_diff_raw" <"$2" >.tmp-2
-    diff -u .tmp-1 .tmp-2 && rm -f .tmp-1 .tmp-2
+    git diff .tmp-1 .tmp-2 && rm -f .tmp-1 .tmp-2
 }
 
 sanitize_diff_raw_z='/^:/s/ '"$_x40"' '"$_x40"' \([A-Z]\)[0-9]*$/ X X \1#/'
@@ -21,15 +21,21 @@ compare_diff_raw_z () {
     # Also we do not check SHA1 hash generation in this test, which
     # is a job for t0000-basic.sh
 
-    tr '\0' '\012' <"$1" | sed -e "$sanitize_diff_raw_z" >.tmp-1
-    tr '\0' '\012' <"$2" | sed -e "$sanitize_diff_raw_z" >.tmp-2
-    diff -u .tmp-1 .tmp-2 && rm -f .tmp-1 .tmp-2
+    tr '\000' '\012' <"$1" | sed -e "$sanitize_diff_raw_z" >.tmp-1
+    tr '\000' '\012' <"$2" | sed -e "$sanitize_diff_raw_z" >.tmp-2
+    git diff .tmp-1 .tmp-2 && rm -f .tmp-1 .tmp-2
 }
 
 compare_diff_patch () {
     # When heuristics are improved, the score numbers would change.
     # Ignore them while comparing.
-    sed -e '/^[dis]*imilarity index [0-9]*%$/d' <"$1" >.tmp-1
-    sed -e '/^[dis]*imilarity index [0-9]*%$/d' <"$2" >.tmp-2
-    diff -u .tmp-1 .tmp-2 && rm -f .tmp-1 .tmp-2
+    sed -e '
+       /^[dis]*imilarity index [0-9]*%$/d
+       /^index [0-9a-f]*\.\.[0-9a-f]/d
+    ' <"$1" >.tmp-1
+    sed -e '
+       /^[dis]*imilarity index [0-9]*%$/d
+       /^index [0-9a-f]*\.\.[0-9a-f]/d
+    ' <"$2" >.tmp-2
+    git diff .tmp-1 .tmp-2 && rm -f .tmp-1 .tmp-2
 }