diff options
author | Jeff King <peff@peff.net> | 2015-08-10 12:34:46 +0300 |
---|---|---|
committer | Junio C Hamano <gitster@pobox.com> | 2015-08-11 01:15:42 +0300 |
commit | 77b9b1d13ac9e6b78ba676d4edb221b7d2273c62 (patch) | |
tree | 48dbdac8534c48be32d3e05dcb3846887d83fd6b /t/t5700-clone-reference.sh | |
parent | bc192300c49a32e1ef297dc3fa78a101f28e2a4c (diff) |
add_to_alternates_file: don't add duplicate entries
The add_to_alternates_file function blindly uses
hold_lock_file_for_append to copy the existing contents, and
then adds the new line to it. This has two minor problems:
1. We might add duplicate entries, which are ugly and
inefficient.
2. We do not check that the file ends with a newline, in
which case we would bogusly append to the final line.
This is quite unlikely in practice, though, as we call
this function only from git-clone, so presumably we are
the only writers of the file (and we always add a
newline).
Instead of using hold_lock_file_for_append, let's copy the
file line by line, which ensures all records are properly
terminated. If we see an extra line, we can simply abort the
update (there is no point in even copying the rest, as we
know that it would be identical to the original).
As a bonus, we also get rid of some calls to the
static-buffer mkpath and git_path functions.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 't/t5700-clone-reference.sh')
-rwxr-xr-x | t/t5700-clone-reference.sh | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/t/t5700-clone-reference.sh b/t/t5700-clone-reference.sh index 51d131a97a..ef1779f5ca 100755 --- a/t/t5700-clone-reference.sh +++ b/t/t5700-clone-reference.sh @@ -120,6 +120,11 @@ test_expect_success 'cloning with reference being subset of source (-l -s)' ' git clone -l -s --reference A B E ' +test_expect_success 'cloning with multiple references drops duplicates' ' + git clone -s --reference B --reference A --reference B A dups && + test_line_count = 2 dups/.git/objects/info/alternates +' + test_expect_success 'clone with reference from a tagged repository' ' ( cd A && git tag -a -m tagged HEAD |