Commit 875b91b3 introduced a regression when using diff --no-index
with directories. When iterating through a directory, the switch to
strbuf from heap-allocated char arrays caused paths to form like
'dir/file1', 'dir/file1file2', rather than 'dir/file1', 'dir/file2' as
expected. By resetting the length on each iteration (but not
buf.alloc), we avoid this.
Signed-off-by: Bobby Powers <bobbypowers@xxxxxxxxx>
---
diff-no-index.c | 6 ++++++
t/t4053-diff-no-index.sh | 19 +++++++++++++++++++
2 files changed, 25 insertions(+)
create mode 100755 t/t4053-diff-no-index.sh
diff --git a/diff-no-index.c b/diff-no-index.c
index b44473e..3080b66 100644
--- a/diff-no-index.c
+++ b/diff-no-index.c
@@ -68,6 +68,7 @@ static int queue_diff(struct diff_options *o,
struct string_list p1 = STRING_LIST_INIT_DUP;
struct string_list p2 = STRING_LIST_INIT_DUP;
int i1, i2, ret = 0;
+ size_t len1 = 0, len2 = 0;
if (name1 && read_directory(name1, &p1))
return -1;
@@ -80,18 +81,23 @@ static int queue_diff(struct diff_options *o,
strbuf_addstr(&buffer1, name1);
if (buffer1.len && buffer1.buf[buffer1.len - 1] != '/')
strbuf_addch(&buffer1, '/');
+ len1 = buffer1.len;
}
if (name2) {
strbuf_addstr(&buffer2, name2);
if (buffer2.len && buffer2.buf[buffer2.len - 1] != '/')
strbuf_addch(&buffer2, '/');
+ len2 = buffer2.len;
}
for (i1 = i2 = 0; !ret && (i1 < p1.nr || i2 < p2.nr); ) {
const char *n1, *n2;
int comp;
+ strbuf_setlen(&buffer1, len1);
+ strbuf_setlen(&buffer2, len2);
+
if (i1 == p1.nr)
comp = 1;
else if (i2 == p2.nr)
diff --git a/t/t4053-diff-no-index.sh b/t/t4053-diff-no-index.sh
new file mode 100755
index 0000000..4dc8c67
--- /dev/null
+++ b/t/t4053-diff-no-index.sh
@@ -0,0 +1,19 @@
+#!/bin/sh
+
+test_description='diff --no-index'
+
+. ./test-lib.sh
+
+test_expect_success 'setup' '
+ mkdir a &&
+ mkdir b &&
+ echo 1 >a/1 &&
+ echo 2 >a/2
+'
+
+test_expect_success 'git diff --no-index directories' '
+ git diff --no-index a b >cnt
+ test $? = 1 && test_line_count = 14 cnt
+'
+
+test_done
--
1.7.10.2.521.g8ddb639
--
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