[PATCH 14/13] test-wildmatch: avoid Windows path mangling

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On Windows, arguments starting with a forward slash is mangled as if
it were full pathname. This causes the patterns beginning with a slash
not to be passed to test-wildmatch correctly. Avoid mangling by never
accepting patterns starting with a slash. Those arguments must be
rewritten with a leading "XXX" (e.g. "/abc" becomes "XXX/abc"), which
will be removed by test-wildmatch itself before feeding the patterns
to wildmatch() or fnmatch().

Reported-by: Johannes Sixt <j6t@xxxxxxxx>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@xxxxxxxxx>
---
 On Sun, Nov 11, 2012 at 5:47 PM, Junio C Hamano <gitster@xxxxxxxxx> wrote:
 > The title taken together with the above explanation makes it sound
 > as if wildmatch code does not work with the pattern /foo on Windows
 > at all and to avoid the issue (instead of fixing the breakage) this
 > patch removes such tests....

 OK how about this?

 t/t3070-wildmatch.sh | 10 +++++-----
 test-wildmatch.c     |  8 ++++++++
 2 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/t/t3070-wildmatch.sh b/t/t3070-wildmatch.sh
index e6ad6f4..3155eab 100755
--- a/t/t3070-wildmatch.sh
+++ b/t/t3070-wildmatch.sh
@@ -74,7 +74,7 @@ match 0 0 'foo/bar' 'foo[/]bar'
 match 0 0 'foo/bar' 'f[^eiu][^eiu][^eiu][^eiu][^eiu]r'
 match 1 1 'foo-bar' 'f[^eiu][^eiu][^eiu][^eiu][^eiu]r'
 match 1 0 'foo' '**/foo'
-match 1 x '/foo' '**/foo'
+match 1 x 'XXX/foo' '**/foo'
 match 1 0 'bar/baz/foo' '**/foo'
 match 0 0 'bar/baz/foo' '*/foo'
 match 0 0 'foo/bar/baz' '**/bar*'
@@ -95,8 +95,8 @@ match 0 0 ']' '[!]-]'
 match 1 x 'a' '[!]-]'
 match 0 0 '' '\'
 match 0 x '\' '\'
-match 0 x '/\' '*/\'
-match 1 x '/\' '*/\\'
+match 0 x 'XXX/\' '*/\'
+match 1 x 'XXX/\' '*/\\'
 match 1 1 'foo' 'foo'
 match 1 1 '@foo' '@foo'
 match 0 0 'foo' '@foo'
@@ -187,8 +187,8 @@ match 0 0 '-' '[[-\]]'
 match 1 1 '-adobe-courier-bold-o-normal--12-120-75-75-m-70-iso8859-1' '-*-*-*-*-*-*-12-*-*-*-m-*-*-*'
 match 0 0 '-adobe-courier-bold-o-normal--12-120-75-75-X-70-iso8859-1' '-*-*-*-*-*-*-12-*-*-*-m-*-*-*'
 match 0 0 '-adobe-courier-bold-o-normal--12-120-75-75-/-70-iso8859-1' '-*-*-*-*-*-*-12-*-*-*-m-*-*-*'
-match 1 1 '/adobe/courier/bold/o/normal//12/120/75/75/m/70/iso8859/1' '/*/*/*/*/*/*/12/*/*/*/m/*/*/*'
-match 0 0 '/adobe/courier/bold/o/normal//12/120/75/75/X/70/iso8859/1' '/*/*/*/*/*/*/12/*/*/*/m/*/*/*'
+match 1 1 'XXX/adobe/courier/bold/o/normal//12/120/75/75/m/70/iso8859/1' 'XXX/*/*/*/*/*/*/12/*/*/*/m/*/*/*'
+match 0 0 'XXX/adobe/courier/bold/o/normal//12/120/75/75/X/70/iso8859/1' 'XXX/*/*/*/*/*/*/12/*/*/*/m/*/*/*'
 match 1 0 'abcd/abcdefg/abcdefghijk/abcdefghijklmnop.txt' '**/*a*b*g*n*t'
 match 0 0 'abcd/abcdefg/abcdefghijk/abcdefghijklmnop.txtz' '**/*a*b*g*n*t'
 
diff --git a/test-wildmatch.c b/test-wildmatch.c
index 74c0864..e384c8e 100644
--- a/test-wildmatch.c
+++ b/test-wildmatch.c
@@ -3,6 +3,14 @@
 
 int main(int argc, char **argv)
 {
+	int i;
+	for (i = 2; i < argc; i++) {
+		if (argv[i][0] == '/')
+			die("Forward slash is not allowed at the beginning of the\n"
+			    "pattern because Windows does not like it. Use `XXX/' instead.");
+		else if (!strncmp(argv[i], "XXX/", 4))
+			argv[i] += 3;
+	}
 	if (!strcmp(argv[1], "wildmatch"))
 		return !!wildmatch(argv[3], argv[2], 0);
 	else if (!strcmp(argv[1], "iwildmatch"))
-- 
1.8.0.rc2.23.g1fb49df

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