add windows replacement for stat

extra/io/windows/files/files.factor

@@ -0,0 +1,108 @@
+! Copyright (C) 2008 Doug Coleman.
+! See http://factorcode.org/license.txt for BSD license.
+USING: alien.c-types io.files io.windows kernel
+math windows windows.kernel32 combinators.cleave
+windows.time calendar combinators math.functions
+sequences combinators.lib namespaces words ;
+IN: io.windows.files
+
+SYMBOL: +read-only+
+SYMBOL: +hidden+
+SYMBOL: +system+
+SYMBOL: +directory+
+SYMBOL: +archive+
+SYMBOL: +device+
+SYMBOL: +normal+
+SYMBOL: +temporary+
+SYMBOL: +sparse-file+
+SYMBOL: +reparse-point+
+SYMBOL: +compressed+
+SYMBOL: +offline+
+SYMBOL: +not-content-indexed+
+SYMBOL: +encrypted+
+
+: expand-constants ( word/obj -- obj'/obj )
+    dup word? [ execute ] when ;
+
+: get-flags ( n seq -- seq' )
+    [
+        [
+            first2 expand-constants
+            [ swapd mask? [ , ] [ drop ] if ] 2curry
+        ] map call-with
+    ] { } make ;
+
+: win32-file-attributes ( n -- seq )
+    {
+        { +read-only+ FILE_ATTRIBUTE_READONLY }
+        { +hidden+ FILE_ATTRIBUTE_HIDDEN }
+        { +system+ FILE_ATTRIBUTE_SYSTEM }
+        { +directory+ FILE_ATTRIBUTE_DIRECTORY }
+        { +archive+ FILE_ATTRIBUTE_ARCHIVE }
+        { +device+ FILE_ATTRIBUTE_DEVICE }
+        { +normal+ FILE_ATTRIBUTE_NORMAL }
+        { +temporary+ FILE_ATTRIBUTE_TEMPORARY }
+        { +sparse-file+ FILE_ATTRIBUTE_SPARSE_FILE }
+        { +reparse-point+ FILE_ATTRIBUTE_REPARSE_POINT }
+        { +compressed+ FILE_ATTRIBUTE_COMPRESSED }
+        { +offline+ FILE_ATTRIBUTE_OFFLINE }
+        { +not-content-indexed+ FILE_ATTRIBUTE_NOT_CONTENT_INDEXED }
+        { +encrypted+ FILE_ATTRIBUTE_ENCRYPTED }
+    } get-flags ;
+
+: WIN32_FIND_DATA>file-info
+    {
+        [ WIN32_FIND_DATA-dwFileAttributes win32-file-attributes ]
+        [
+            [ WIN32_FIND_DATA-nFileSizeLow ]
+            [ WIN32_FIND_DATA-nFileSizeHigh ] bi >64bit
+        ]
+        [ WIN32_FIND_DATA-dwFileAttributes ]
+        [
+            WIN32_FIND_DATA-ftLastWriteTime FILETIME>timestamp
+        ]
+    } cleave
+    \ file-info construct-boa ;
+
+: find-first-file-stat ( path -- WIN32_FIND_DATA )
+    "WIN32_FIND_DATA" <c-object> [
+        FindFirstFile
+        [ INVALID_HANDLE_VALUE = [ win32-error ] when ] keep
+        FindClose win32-error=0/f
+    ] keep ;
+
+: BY_HANDLE_FILE_INFORMATION>file-info
+    {
+        [ BY_HANDLE_FILE_INFORMATION-dwFileAttributes win32-file-attributes ]
+        [
+            [ BY_HANDLE_FILE_INFORMATION-nFileSizeLow ]
+            [ BY_HANDLE_FILE_INFORMATION-nFileSizeHigh ] bi >64bit
+        ]
+        [ BY_HANDLE_FILE_INFORMATION-dwFileAttributes ]
+        [
+            BY_HANDLE_FILE_INFORMATION-ftLastWriteTime
+            FILETIME>timestamp
+        ]
+    } cleave
+    \ file-info construct-boa ;
+
+: get-file-information ( handle -- BY_HANDLE_FILE_INFORMATION )
+    [
+        "BY_HANDLE_FILE_INFORMATION" <c-object>
+        [ GetFileInformationByHandle win32-error=0/f ] keep
+    ] keep CloseHandle win32-error=0/f ;
+
+: get-file-information-stat ( path -- BY_HANDLE_FILE_INFORMATION )
+    dup
+    GENERIC_READ FILE_SHARE_READ f
+    OPEN_EXISTING FILE_FLAG_BACKUP_SEMANTICS f
+    CreateFileW dup INVALID_HANDLE_VALUE = [
+        drop find-first-file-stat WIN32_FIND_DATA>file-info
+    ] [
+        nip
+        get-file-information BY_HANDLE_FILE_INFORMATION>file-info
+    ] if ;
+
+M: windows-nt-io file-info ( path -- info )
+    get-file-information-stat ;
+