suppress realloc-poll debug messages in optimized builds

[ardour.git] / libs / pbd / pathexpand.cc

diff --git a/libs/pbd/pathexpand.cc b/libs/pbd/pathexpand.cc
index 5784ec942855de3ece0de4e9809333efbb5278e1..a92005a08621e9a0d850be26675d53bd3581ca02 100644 (file)
--- a/libs/pbd/pathexpand.cc
+++ b/libs/pbd/pathexpand.cc
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2013 Paul Davis
+    Copyright (C) 2013-2014 Paul Davis
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -25,28 +25,82 @@
 
 #include <regex.h>
 
+#include <glibmm/fileutils.h>
 #include <glibmm/miscutils.h>
 
+#include "pbd/compose.h"
+#include "pbd/debug.h"
 #include "pbd/pathexpand.h"
 #include "pbd/strsplit.h"
+#include "pbd/tokenizer.h"
 
 using std::string;
 using std::vector;
 
+#ifdef COMPILER_MINGW
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <glibmm.h>
+
+/****************************************************************
+ * Emulate POSIX realpath() using Win32 _fullpath() since realpath()
+ * is not available.
+ *
+ * Returns:
+ *    On Success: A pointer to the resolved (absolute) path
+ *    On Failure: 0 (NULL)
+ */
+
+static char*
+realpath (const char *original_path, char resolved_path[_MAX_PATH+1])
+{
+       char *rpath = 0;
+       bool bIsSymLink = false; // We'll probably need to test the incoming path
+                                // to find out if it points to a Windows shortcut
+                                // (or a hard link) and set this appropriately.
+
+       if (bIsSymLink) {
+               // At the moment I'm not sure if Windows '_fullpath()' is directly
+               // equivalent to POSIX 'realpath()' - in as much as the latter will
+               // resolve the supplied path if it happens to point to a symbolic
+               // link ('_fullpath()' probably DOESN'T do this but I'm not really
+               // sure if Ardour needs such functionality anyway). Therefore we'll
+               // possibly need to add that functionality here at a later date.
+       } else {
+               char temp[(_MAX_PATH+1)*6]; // Allow for maximum length of a path in wchar characters
+
+               // POSIX 'realpath()' requires that the buffer size is at
+               // least PATH_MAX+1, so assume that the user knew this !!
+
+               rpath = _fullpath (temp, Glib::locale_from_utf8 (original_path).c_str(), _MAX_PATH);
+
+               if (0 != rpath) {
+                       snprintf (resolved_path, _MAX_PATH+1, "%s", Glib::locale_to_utf8 (temp).c_str());
+               }
+
+       }
+
+       return (rpath);
+}
+
+#endif  // COMPILER_MINGW
+
 string
 PBD::canonical_path (const std::string& path)
 {
-#ifdef COMPILER_MINGW
-       return path;
-#else
        char buf[PATH_MAX+1];
 
-       if (!realpath (path.c_str(), buf) && (errno != ENOENT)) {
+       if (realpath (path.c_str(), buf) == NULL) {
+               DEBUG_TRACE (DEBUG::FileUtils,
+                               string_compose("PBD::canonical_path: Unable to resolve %1: %2\n", path, g_strerror(errno)));
                return path;
        }
 
+       DEBUG_TRACE (DEBUG::FileUtils,
+                       string_compose("PBD::canonical_path %1 resolved to: %2\n", path, string(buf)));
+
        return string (buf);
-#endif
 }
 
 string
@@ -75,22 +129,22 @@ PBD::path_expand (string path)
        regex_t compiled_pattern;
        const int nmatches = 100;
        regmatch_t matches[nmatches];
-       
+
        if (regcomp (&compiled_pattern, "\\$([a-zA-Z_][a-zA-Z0-9_]*|\\{[a-zA-Z_][a-zA-Z0-9_]*\\})", REG_EXTENDED)) {
                std::cerr << "bad regcomp\n";
                 return path;
         }
 
-       while (true) { 
+       while (true) {
 
                if (regexec (&compiled_pattern, path.c_str(), nmatches, matches, 0)) {
                        break;
                }
-               
+
                /* matches[0] gives the entire match */
-               
+
                string match = path.substr (matches[0].rm_so, matches[0].rm_eo - matches[0].rm_so);
-               
+
                /* try to get match from the environment */
 
                 if (match[1] == '{') {
@@ -107,7 +161,7 @@ PBD::path_expand (string path)
                 }
 
                /* go back and do it again with whatever remains after the
-                * substitution 
+                * substitution
                 */
        }
 
@@ -128,7 +182,7 @@ PBD::search_path_expand (string path)
        vector<string> s;
        vector<string> n;
 
-       split (path, s, ':');
+       split (path, s, G_SEARCHPATH_SEPARATOR);
 
        for (vector<string>::iterator i = s.begin(); i != s.end(); ++i) {
                string exp = path_expand (*i);
@@ -141,10 +195,36 @@ PBD::search_path_expand (string path)
 
        for (vector<string>::iterator i = n.begin(); i != n.end(); ++i) {
                if (!r.empty()) {
-                       r += ':';
+                       r += G_SEARCHPATH_SEPARATOR;
                }
                r += *i;
        }
 
        return r;
 }
+
+std::vector <std::string>
+PBD::parse_path(std::string path, bool check_if_exists)
+{
+       vector <std::string> pathlist;
+       vector <std::string> tmp;
+       PBD::tokenize (path, string(G_SEARCHPATH_SEPARATOR_S), std::back_inserter (tmp));
+
+       for(vector<std::string>::const_iterator i = tmp.begin(); i != tmp.end(); ++i) {
+               if ((*i).empty()) continue;
+               std::string dir;
+#ifndef PLATFORM_WINDOWS
+               if ((*i).substr(0,1) == "~") {
+                       dir = Glib::build_filename(Glib::get_home_dir(), (*i).substr(1));
+               }
+               else
+#endif
+               {
+                       dir = *i;
+               }
+               if (!check_if_exists || Glib::file_test (dir, Glib::FILE_TEST_IS_DIR)) {
+                       pathlist.push_back(dir);
+               }
+       }
+  return pathlist;
+}