[beast/win32] Fixed a few directory / path separator issues in the file crawler code.

[Stefan Westerfeld <stw src gnome org>]

commit 063fcb654f371b9c92851b55286db928dbb6c4a9
Author: Stefan Westerfeld <stefan space twc de>
Date:   Sat Sep 5 09:48:59 2009 +0200

    Fixed a few directory / path separator issues in the file crawler code.
    
    Based on 010_plugin_ext_crawler.diff.

 sfi/sfifilecrawler.c |   49 +++++++++++++++++++++++++++++++++----------------
 1 files changed, 33 insertions(+), 16 deletions(-)
---
diff --git a/sfi/sfifilecrawler.c b/sfi/sfifilecrawler.c
index edfbfd3..8b55033 100644
--- a/sfi/sfifilecrawler.c
+++ b/sfi/sfifilecrawler.c
@@ -19,8 +19,7 @@
 #include "sfiwrapper.h"
 #include "topconfig.h"
 #include <string.h>
-#include <sys/types.h>
-#include <dirent.h>
+#include <sys/stat.h>
 
 #define INCREMENTAL_RESULTS 1
 
@@ -173,7 +172,7 @@ file_crawler_queue_readdir (SfiFileCrawler *self,
   if (strchr (file_pattern, '?') || strchr (file_pattern, '*'))
     {
       gchar *s = g_strconcat (base_dir, G_DIR_SEPARATOR_S, NULL);
-      self->dhandle = opendir (s);
+      self->dhandle = g_dir_open (s, 0, NULL);
       g_free (s);
       if (self->dhandle)
 	{
@@ -199,16 +198,17 @@ file_crawler_queue_readdir (SfiFileCrawler *self,
 static void	/* self->accu is implicit in/out arg */
 file_crawler_crawl_readdir (SfiFileCrawler *self)
 {
-  DIR *dd = self->dhandle;
-  struct dirent *d_entry = readdir (dd);
+  /* FIXME:stw: either this function is by design only supposed to be called
+   * with self->dhandle != NULL, or my win32 changes need fixing
+   */
+  g_return_if_fail (self->dhandle != NULL);
   
-  if (d_entry)
+  const gchar *filename = g_dir_read_name (self->dhandle);
+  if (filename)
     {
-      if (!(d_entry->d_name[0] == '.' && d_entry->d_name[1] == 0) &&
-	  !(d_entry->d_name[0] == '.' && d_entry->d_name[1] == '.' && d_entry->d_name[2] == 0) &&
-	  g_pattern_match_string (self->pspec, d_entry->d_name))
+      if (g_pattern_match_string (self->pspec, filename))
 	{
-	  gchar *str = g_strconcat (self->base_dir, G_DIR_SEPARATOR_S, d_entry->d_name, NULL);
+	  gchar *str = g_strconcat (self->base_dir, G_DIR_SEPARATOR_S, filename, NULL);
 	  if (self->ftest && !g_file_test_all (str, self->ftest))
 	    g_free (str);
 	  else
@@ -221,12 +221,29 @@ file_crawler_crawl_readdir (SfiFileCrawler *self)
       self->pspec = NULL;
       g_free (self->base_dir);
       self->base_dir = NULL;
-      closedir (dd);
+      g_dir_close (self->dhandle);
       self->dhandle = NULL;
       self->ftest = 0;
     }
 }
 
+/* On unix, it is equivalent with strchr (path, '/').
+ *
+ * On windows, it takes into account that both, '/' and '\' are
+ * valid directory separators.
+ */
+static gchar*
+find_next_dir_separator (const gchar *path)
+{
+  while (*path && !G_IS_DIR_SEPARATOR (*path))
+    path++;
+
+  if (*path)
+    return path;
+  else
+    return NULL;
+}
+
 static void
 file_crawler_queue_abs_file_path (SfiFileCrawler *self,
 				  const gchar    *path_pattern,
@@ -239,7 +256,7 @@ file_crawler_queue_abs_file_path (SfiFileCrawler *self,
   freeme = p = g_strdup (path_pattern);
   
   /* seperate root */
-  sep = strchr (p, G_DIR_SEPARATOR);
+  sep = find_next_dir_separator (p);
   g_return_if_fail (sep != NULL);	/* absolute paths must have a seperator */
   *sep++ = 0;
   
@@ -257,12 +274,12 @@ file_crawler_queue_abs_file_path (SfiFileCrawler *self,
   self->dlist = sfi_ring_prepend (self->dlist, g_strdup (p));
   
   /* compress multiple dir seperators */
-  while (*sep == G_DIR_SEPARATOR)
+  while (G_IS_DIR_SEPARATOR (*sep))
     sep++;
   
   /* add remaining segments to queue */
   p = sep;
-  sep = strchr (p, G_DIR_SEPARATOR);
+  sep = find_next_dir_separator (p);
   while (sep)
     {
       *sep++ = 0;
@@ -271,7 +288,7 @@ file_crawler_queue_abs_file_path (SfiFileCrawler *self,
       while (*sep == G_DIR_SEPARATOR)
 	sep++;
       p = sep;
-      sep = strchr (p, G_DIR_SEPARATOR);
+      sep = find_next_dir_separator (p);
     }
   
   /* final segment */
@@ -344,7 +361,7 @@ path_make_absolute (const gchar *rpath,
   gchar *home, *user = NULL;
   if (rpath[0] != '~')
     return cwd ? g_strconcat (cwd, G_DIR_SEPARATOR_S, rpath, NULL) : NULL;
-  dir = strchr (rpath + 1, G_DIR_SEPARATOR);
+  dir = find_next_dir_separator (rpath + 1);
   if (dir && dir > rpath + 1)
     user = g_strndup (rpath + 1, dir - rpath - 1);
   else if (!dir && rpath[1])