Hi there,
The new git-check-ignore command seg faults when
(1) it is called with single dot path name at $GIT_DIR level _AND_
(2) and .gitignore has at least one directory pattern.
Git version: 1.8.2.rc0.16.g20a599e
Reproduce the bug:
$ git --version
git version 1.8.2.rc0.16.g20a599e
$ mkdir test
$ cd test
$ git init
$ git check-ignore . # All good, no errors here
$ echo "dirpattern/" > .gitignore
$ git check-ignore .
Segmentation fault (core dumped)
The segmentation fault is actually caused by hash_name(const char
*name, int namelen) function in name-hash.c when the 'name' argument
is an empty stringi and namelen is 0.
The empty string comes from a call to the prefix_path(prefix, len,
path) function in setup.c. In this instance arguments 'prefix' is
NULL, 'len' is 0 and 'path' is "." .
Cheers,
Zoltan
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