wildmatch: import wildmatch from git.git

In commit 70a8fc999d (stop using fnmatch (either native or
compat), 2014-02-15), upstream git has switched over all code
from their internal fnmatch copy to its new wildmatch code. We
haven't followed suit, and thus have developed some
incompatibilities in how we match regular expressions.

Import git's wildmatch from v2.22.0 and add a test suite based on
their t3070-wildmatch.sh tests.

1 files changed, 28 insertions, 0 deletions

diff --git a/COPYING b/COPYING
index da695ebdb..c0f61fb91 100644
--- a/COPYING
+++ b/COPYING
@@ -991,3 +991,31 @@ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 SOFTWARE.
+
+----------------------------------------------------------------------
+
+The bundled wildmatch code is licensed under the BSD license:
+
+Copyright Rich Salz.
+All rights reserved.
+
+Redistribution and use in any form are permitted provided that the
+following restrictions are are met:
+
+1.  Source distributions must retain this entire copyright notice
+    and comment.
+2.  Binary distributions must include the acknowledgement ``This
+    product includes software developed by Rich Salz'' in the
+    documentation or other materials provided with the
+    distribution.  This must not be represented as an endorsement
+   or promotion without specific prior written permission.
+3.  The origin of this software must not be misrepresented, either
+    by explicit claim or by omission.  Credits must appear in the
+    source and documentation.
+4.  Altered versions must be plainly marked as such in the source
+    and documentation and must not be misrepresented as being the
+    original software.
+
+THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
+WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.