cmd: Add support for wildcards in if exist.

programs/cmd/builtins.c

@@ -2804,8 +2804,11 @@ void WCMD_if (WCHAR *p, CMD_LIST **cmdList)
     WCMD_parameter(p, 2+negate, &command, FALSE, FALSE);
   }
   else if (!lstrcmpiW (condition, existW)) {
-    test = (GetFileAttributesW(WCMD_parameter(p, 1+negate, NULL, FALSE, FALSE))
-             != INVALID_FILE_ATTRIBUTES);
+    WIN32_FIND_DATAW fd;
+    HANDLE hff = FindFirstFileW(WCMD_parameter(p, 1+negate, NULL, FALSE, FALSE), &fd);
+    test = (hff != INVALID_HANDLE_VALUE );
+    if (!test) FindClose(hff);
+
     WCMD_parameter(p, 2+negate, &command, FALSE, FALSE);
   }
   else if (!lstrcmpiW (condition, defdW)) {

programs/cmd/tests/test_builtins.cmd

@@ -979,6 +979,49 @@ for %%i in (%WINE_STR_PARMS%) do (
 for %%i in (%WINE_STR_PARMS%) do (
     for %%j in (%WINE_STR_PARMS%) do (
         call :GTRtest %%i %%j))
+
+echo ------------ Testing if/exist ------------
+mkdir subdir
+echo something>subdir\bar
+echo something else>foo
+if exist foo (
+   echo exist explicit works
+) else (
+   echo ERROR exist explicit broken
+)
+if exist bar (
+   echo ERROR exist explicit unknown file broken
+) else (
+   echo exist explicit unknown file works
+)
+if exist subdir\bar (
+   echo exist explicit in subdir works
+) else (
+   echo ERROR exist explicit in subdir broken
+)
+if exist fo* (
+   echo exist simple wildcard works
+) else (
+   echo ERROR exist simple wildcard broken
+)
+if exist subdir\ba* (
+   echo exist wildcard works
+) else (
+   echo ERROR exist wildcard broken
+)
+if not exist subdir\ba* (
+   echo ERROR negate exist wildcard broken
+) else (
+   echo negate exist wildcard works
+)
+if exist idontexist\ba* (
+   echo ERROR exist wildcard bad subdir broken
+) else (
+   echo exist wildcard bad subdir broken works
+)
+del foo subdir\bar
+rd subdir
+
 echo ------ for numbers
 if -1 LSS 1 (echo negative numbers handled)
 if not -1 LSS -10 (echo negative numbers handled)

programs/cmd/tests/test_builtins.cmd.exp

@@ -768,6 +768,14 @@ BA GTR B
 BA GTR AB
 BA GTR AA
 AA GTR A
+------------ Testing if/exist ------------
+exist explicit works
+exist explicit unknown file works
+exist explicit in subdir works
+exist simple wildcard works
+exist wildcard works
+negate exist wildcard works
+exist wildcard bad subdir broken works
 ------ for numbers
 negative numbers handled
 negative numbers handled