2 Copyright (C) 2013-2014 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
28 #include <glibmm/fileutils.h>
29 #include <glibmm/miscutils.h>
31 #include "pbd/pathexpand.h"
32 #include "pbd/strsplit.h"
33 #include "pbd/tokenizer.h"
44 /****************************************************************
45 * Emulate POSIX realpath() using Win32 _fullpath() since realpath()
49 * On Success: A pointer to the resolved (absolute) path
50 * On Failure: 0 (NULL)
54 realpath (const char *original_path, char resolved_path[_MAX_PATH+1])
57 bool bIsSymLink = false; // We'll probably need to test the incoming path
58 // to find out if it points to a Windows shortcut
59 // (or a hard link) and set this appropriately.
62 // At the moment I'm not sure if Windows '_fullpath()' is directly
63 // equivalent to POSIX 'realpath()' - in as much as the latter will
64 // resolve the supplied path if it happens to point to a symbolic
65 // link ('_fullpath()' probably DOESN'T do this but I'm not really
66 // sure if Ardour needs such functionality anyway). Therefore we'll
67 // possibly need to add that functionality here at a later date.
69 char temp[(_MAX_PATH+1)*6]; // Allow for maximum length of a path in wchar characters
71 // POSIX 'realpath()' requires that the buffer size is at
72 // least PATH_MAX+1, so assume that the user knew this !!
74 rpath = _fullpath (temp, Glib::locale_from_utf8 (original_path).c_str(), _MAX_PATH);
77 snprintf (resolved_path, _MAX_PATH+1, "%s", Glib::locale_to_utf8 (temp).c_str());
85 #endif // COMPILER_MINGW
88 PBD::canonical_path (const std::string& path)
92 if (!realpath (path.c_str(), buf)) {
100 PBD::path_expand (string path)
106 /* tilde expansion */
108 if (path[0] == '~') {
109 if (path.length() == 1) {
110 return Glib::get_home_dir();
113 if (path[1] == '/') {
114 path.replace (0, 1, Glib::get_home_dir());
116 /* can't handle ~roger, so just leave it */
120 /* now do $VAR substitution, since wordexp isn't reliable */
122 regex_t compiled_pattern;
123 const int nmatches = 100;
124 regmatch_t matches[nmatches];
126 if (regcomp (&compiled_pattern, "\\$([a-zA-Z_][a-zA-Z0-9_]*|\\{[a-zA-Z_][a-zA-Z0-9_]*\\})", REG_EXTENDED)) {
127 std::cerr << "bad regcomp\n";
133 if (regexec (&compiled_pattern, path.c_str(), nmatches, matches, 0)) {
137 /* matches[0] gives the entire match */
139 string match = path.substr (matches[0].rm_so, matches[0].rm_eo - matches[0].rm_so);
141 /* try to get match from the environment */
143 if (match[1] == '{') {
145 match = match.substr (2, match.length() - 3);
148 char* matched_value = getenv (match.c_str());
151 path.replace (matches[0].rm_so, matches[0].rm_eo - matches[0].rm_so, matched_value);
153 path.replace (matches[0].rm_so, matches[0].rm_eo - matches[0].rm_so, string());
156 /* go back and do it again with whatever remains after the
161 regfree (&compiled_pattern);
165 return canonical_path (path);
169 PBD::search_path_expand (string path)
178 split (path, s, G_SEARCHPATH_SEPARATOR);
180 for (vector<string>::iterator i = s.begin(); i != s.end(); ++i) {
181 string exp = path_expand (*i);
189 for (vector<string>::iterator i = n.begin(); i != n.end(); ++i) {
191 r += G_SEARCHPATH_SEPARATOR;
199 std::vector <std::string>
200 PBD::parse_path(std::string path, bool check_if_exists)
202 vector <std::string> pathlist;
203 vector <std::string> tmp;
204 PBD::tokenize (path, string(G_SEARCHPATH_SEPARATOR_S), std::back_inserter (tmp));
206 for(vector<std::string>::const_iterator i = tmp.begin(); i != tmp.end(); ++i) {
207 if ((*i).empty()) continue;
209 #ifndef PLATFORM_WINDOWS
210 if ((*i).substr(0,1) == "~") {
211 dir = Glib::build_filename(Glib::get_home_dir(), (*i).substr(1));
218 if (!check_if_exists || Glib::file_test (dir, Glib::FILE_TEST_IS_DIR)) {
219 pathlist.push_back(dir);