From 937b76ed4970214837314e26265b78793e6653ed Mon Sep 17 00:00:00 2001 From: Johannes Schindelin Date: Wed, 2 Oct 2019 14:10:47 -0700 Subject: range-diff: internally force `diff.noprefix=true` MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When parsing the diffs, `range-diff` expects to see the prefixes `a/` and `b/` in the diff headers. These prefixes can be forced off via the config setting `diff.noprefix=true`. As `range-diff` is not prepared for that situation, this will cause a segmentation fault. Let's avoid that by passing the `--no-prefix` option to the `git log` process that generates the diffs that `range-diff` wants to parse. And of course expect the output to have no prefixes, then. Reported-by: Michal Suchánek Signed-off-by: Johannes Schindelin Signed-off-by: Junio C Hamano --- range-diff.c | 3 ++- t/t3206-range-diff.sh | 4 ++++ 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/range-diff.c b/range-diff.c index ba1e9a4265..f2fc1e02c2 100644 --- a/range-diff.c +++ b/range-diff.c @@ -52,6 +52,7 @@ static int read_patches(const char *range, struct string_list *list) argv_array_pushl(&cp.args, "log", "--no-color", "-p", "--no-merges", "--reverse", "--date-order", "--decorate=no", + "--no-prefix", /* * Choose indicators that are not used anywhere * else in diffs, but still look reasonable @@ -111,7 +112,7 @@ static int read_patches(const char *range, struct string_list *list) if (!util->diff_offset) util->diff_offset = buf.len; line[len - 1] = '\n'; - len = parse_git_diff_header(&root, &linenr, 1, line, + len = parse_git_diff_header(&root, &linenr, 0, line, len, size, &patch); if (len < 0) die(_("could not parse git header '%.*s'"), (int)len, line); diff --git a/t/t3206-range-diff.sh b/t/t3206-range-diff.sh index ec548654ce..be60976c28 100755 --- a/t/t3206-range-diff.sh +++ b/t/t3206-range-diff.sh @@ -354,4 +354,8 @@ test_expect_success 'format-patch --range-diff as commentary' ' grep "> 1: .* new message" 0001-* ' +test_expect_success 'range-diff overrides diff.noprefix internally' ' + git -c diff.noprefix=true range-diff HEAD^... +' + test_done -- cgit v1.2.3