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"
43 /****************************************************************
44 * Emulate POSIX realpath() using Win32 _fullpath() since realpath()
48 * On Success: A pointer to the resolved (absolute) path
49 * On Failure: 0 (NULL)
53 realpath (const char *original_path, char resolved_path[_MAX_PATH+1])
56 bool bIsSymLink = false; // We'll probably need to test the incoming path
57 // to find out if it points to a Windows shortcut
58 // (or a hard link) and set this appropriately.
61 // At the moment I'm not sure if Windows '_fullpath()' is directly
62 // equivalent to POSIX 'realpath()' - in as much as the latter will
63 // resolve the supplied path if it happens to point to a symbolic
64 // link ('_fullpath()' probably DOESN'T do this but I'm not really
65 // sure if Ardour needs such functionality anyway). Therefore we'll
66 // possibly need to add that functionality here at a later date.
68 char temp[(_MAX_PATH+1)*6]; // Allow for maximum length of a path in wchar characters
70 // POSIX 'realpath()' requires that the buffer size is at
71 // least PATH_MAX+1, so assume that the user knew this !!
73 rpath = _fullpath (temp, Glib::locale_from_utf8 (original_path).c_str(), _MAX_PATH);
76 snprintf (resolved_path, _MAX_PATH+1, "%s", Glib::locale_to_utf8 (temp).c_str());
84 #endif // COMPILER_MINGW
87 PBD::canonical_path (const std::string& path)
91 if (!realpath (path.c_str(), buf)) {
99 PBD::path_expand (string path)
105 /* tilde expansion */
107 if (path[0] == '~') {
108 if (path.length() == 1) {
109 return Glib::get_home_dir();
112 if (path[1] == '/') {
113 path.replace (0, 1, Glib::get_home_dir());
115 /* can't handle ~roger, so just leave it */
119 /* now do $VAR substitution, since wordexp isn't reliable */
121 regex_t compiled_pattern;
122 const int nmatches = 100;
123 regmatch_t matches[nmatches];
125 if (regcomp (&compiled_pattern, "\\$([a-zA-Z_][a-zA-Z0-9_]*|\\{[a-zA-Z_][a-zA-Z0-9_]*\\})", REG_EXTENDED)) {
126 std::cerr << "bad regcomp\n";
132 if (regexec (&compiled_pattern, path.c_str(), nmatches, matches, 0)) {
136 /* matches[0] gives the entire match */
138 string match = path.substr (matches[0].rm_so, matches[0].rm_eo - matches[0].rm_so);
140 /* try to get match from the environment */
142 if (match[1] == '{') {
144 match = match.substr (2, match.length() - 3);
147 char* matched_value = getenv (match.c_str());
150 path.replace (matches[0].rm_so, matches[0].rm_eo - matches[0].rm_so, matched_value);
152 path.replace (matches[0].rm_so, matches[0].rm_eo - matches[0].rm_so, string());
155 /* go back and do it again with whatever remains after the
160 regfree (&compiled_pattern);
164 return canonical_path (path);
168 PBD::search_path_expand (string path)
177 split (path, s, ':');
179 for (vector<string>::iterator i = s.begin(); i != s.end(); ++i) {
180 string exp = path_expand (*i);
188 for (vector<string>::iterator i = n.begin(); i != n.end(); ++i) {
198 std::vector <std::string>
199 PBD::parse_path(std::string path, bool check_if_exists)
201 vector <std::string> pathlist;
202 vector <std::string> tmp;
203 PBD::tokenize (path, string(G_SEARCHPATH_SEPARATOR_S), std::back_inserter (tmp));
205 for(vector<std::string>::const_iterator i = tmp.begin(); i != tmp.end(); ++i) {
206 if ((*i).empty()) continue;
208 #ifndef PLATFORM_WINDOWS
209 if ((*i).substr(0,1) == "~") {
210 dir = Glib::build_filename(Glib::get_home_dir(), (*i).substr(1));
217 if (!check_if_exists || Glib::file_test (dir, Glib::FILE_TEST_IS_DIR)) {
218 pathlist.push_back(dir);