2 files changed, 78 insertions, 2 deletions
diff --git a/revision.c b/revision.c
index 7e2f4f1eb5..6e85aaa3fb 100644
--- a/revision.c
+++ b/revision.c
@@ -1290,8 +1290,10 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, const ch
 	if (revs->diffopt.output_format & ~DIFF_FORMAT_NO_OUTPUT)
 		revs->diff = 1;
 
-	/* Pickaxe and rename following needs diffs */
-	if (revs->diffopt.pickaxe || DIFF_OPT_TST(&revs->diffopt, FOLLOW_RENAMES))
+	/* Pickaxe, diff-filter and rename following need diffs */
+	if (revs->diffopt.pickaxe ||
+	    revs->diffopt.filter ||
+	    DIFF_OPT_TST(&revs->diffopt, FOLLOW_RENAMES))
 		revs->diff = 1;
 
 	if (revs->topo_order)
diff --git a/t/t4202-log.sh b/t/t4202-log.sh
new file mode 100755
index 0000000000..b53645417b
--- /dev/null
+++ b/t/t4202-log.sh
@@ -0,0 +1,74 @@
+#!/bin/sh
+
+test_description='git log'
+
+. ./test-lib.sh
+
+test_expect_success setup '
+
+	echo one >one &&
+	git add one &&
+	test_tick &&
+	git commit -m initial &&
+
+	echo ichi >one &&
+	git add one &&
+	test_tick &&
+	git commit -m second &&
+
+	mkdir a &&
+	echo ni >a/two &&
+	git add a/two &&
+	test_tick &&
+	git commit -m third &&
+
+	echo san >a/three &&
+	git add a/three &&
+	test_tick &&
+	git commit -m fourth &&
+
+	git rm a/three &&
+	test_tick &&
+	git commit -m fifth
+
+'
+
+test_expect_success 'diff-filter=A' '
+
+	actual=$(git log --pretty="format:%s" --diff-filter=A HEAD) &&
+	expect=$(echo fourth ; echo third ; echo initial) &&
+	test "$actual" = "$expect" || {
+		echo Oops
+		echo "Actual: $actual"
+		false
+	}
+
+'
+
+test_expect_success 'diff-filter=M' '
+
+	actual=$(git log --pretty="format:%s" --diff-filter=M HEAD) &&
+	expect=$(echo second) &&
+	test "$actual" = "$expect" || {
+		echo Oops
+		echo "Actual: $actual"
+		false
+	}
+
+'
+
+test_expect_success 'diff-filter=D' '
+
+	actual=$(git log --pretty="format:%s" --diff-filter=D HEAD) &&
+	expect=$(echo fifth) &&
+	test "$actual" = "$expect" || {
+		echo Oops
+		echo "Actual: $actual"
+		false
+	}
+
+'
+
+
+
+test_done
+\ No newline at end of file