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/compose.h"
32 #include "pbd/debug.h"
33 #include "pbd/pathexpand.h"
34 #include "pbd/strsplit.h"
35 #include "pbd/tokenizer.h"
46 /****************************************************************
47 * Emulate POSIX realpath() using Win32 _fullpath() since realpath()
51 * On Success: A pointer to the resolved (absolute) path
52 * On Failure: 0 (NULL)
56 realpath (const char *original_path, char resolved_path[_MAX_PATH+1])
59 bool bIsSymLink = false; // We'll probably need to test the incoming path
60 // to find out if it points to a Windows shortcut
61 // (or a hard link) and set this appropriately.
64 // At the moment I'm not sure if Windows '_fullpath()' is directly
65 // equivalent to POSIX 'realpath()' - in as much as the latter will
66 // resolve the supplied path if it happens to point to a symbolic
67 // link ('_fullpath()' probably DOESN'T do this but I'm not really
68 // sure if Ardour needs such functionality anyway). Therefore we'll
69 // possibly need to add that functionality here at a later date.
71 char temp[(_MAX_PATH+1)*6]; // Allow for maximum length of a path in wchar characters
73 // POSIX 'realpath()' requires that the buffer size is at
74 // least PATH_MAX+1, so assume that the user knew this !!
76 rpath = _fullpath (temp, Glib::locale_from_utf8 (original_path).c_str(), _MAX_PATH);
79 snprintf (resolved_path, _MAX_PATH+1, "%s", Glib::locale_to_utf8 (temp).c_str());
87 #endif // COMPILER_MINGW
90 PBD::canonical_path (const std::string& path)
94 if (realpath (path.c_str(), buf) == NULL) {
95 DEBUG_TRACE (DEBUG::FileUtils,
96 string_compose("PBD::canonical_path: Unable to resolve %1: %2\n", path, g_strerror(errno)));
100 DEBUG_TRACE (DEBUG::FileUtils,
101 string_compose("PBD::canonical_path %1 resolved to: %2\n", path, string(buf)));
107 PBD::path_expand (string path)
113 /* tilde expansion */
115 if (path[0] == '~') {
116 if (path.length() == 1) {
117 return Glib::get_home_dir();
120 if (path[1] == '/') {
121 path.replace (0, 1, Glib::get_home_dir());
123 /* can't handle ~roger, so just leave it */
127 /* now do $VAR substitution, since wordexp isn't reliable */
129 regex_t compiled_pattern;
130 const int nmatches = 100;
131 regmatch_t matches[nmatches];
133 if (regcomp (&compiled_pattern, "\\$([a-zA-Z_][a-zA-Z0-9_]*|\\{[a-zA-Z_][a-zA-Z0-9_]*\\})", REG_EXTENDED)) {
134 std::cerr << "bad regcomp\n";
140 if (regexec (&compiled_pattern, path.c_str(), nmatches, matches, 0)) {
144 /* matches[0] gives the entire match */
146 string match = path.substr (matches[0].rm_so, matches[0].rm_eo - matches[0].rm_so);
148 /* try to get match from the environment */
150 if (match[1] == '{') {
152 match = match.substr (2, match.length() - 3);
155 char* matched_value = getenv (match.c_str());
158 path.replace (matches[0].rm_so, matches[0].rm_eo - matches[0].rm_so, matched_value);
160 path.replace (matches[0].rm_so, matches[0].rm_eo - matches[0].rm_so, string());
163 /* go back and do it again with whatever remains after the
168 regfree (&compiled_pattern);
172 return canonical_path (path);
176 PBD::search_path_expand (string path)
185 split (path, s, G_SEARCHPATH_SEPARATOR);
187 for (vector<string>::iterator i = s.begin(); i != s.end(); ++i) {
188 string exp = path_expand (*i);
196 for (vector<string>::iterator i = n.begin(); i != n.end(); ++i) {
198 r += G_SEARCHPATH_SEPARATOR;
206 std::vector <std::string>
207 PBD::parse_path(std::string path, bool check_if_exists)
209 vector <std::string> pathlist;
210 vector <std::string> tmp;
211 PBD::tokenize (path, string(G_SEARCHPATH_SEPARATOR_S), std::back_inserter (tmp));
213 for(vector<std::string>::const_iterator i = tmp.begin(); i != tmp.end(); ++i) {
214 if ((*i).empty()) continue;
216 #ifndef PLATFORM_WINDOWS
217 if ((*i).substr(0,1) == "~") {
218 dir = Glib::build_filename(Glib::get_home_dir(), (*i).substr(1));
225 if (!check_if_exists || Glib::file_test (dir, Glib::FILE_TEST_IS_DIR)) {
226 pathlist.push_back(dir);