[PATCH v2] diff --no-index: reset temporary buffer lengths on directory iteration
- From
Bobby Powers <bobbypowers@gmail.com>
- Date
- May 16, 2012, 14:28 UTC
- Message-ID
- <1337178511-22980-1-git-send-email-bobbypowers@gmail.com>
- In-Reply-To
- <CAArOQ2UNJyBHNa5_+G+J0bihCEOxPebey8-EkcoXDyeR1wM+yw@mail.gmail.com>
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@gmail.com> --- 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