Merge branch 'master' into cairocanvas
[ardour.git] / libs / pbd / file_utils.cc
index efb065fbd4e3d19b28ac72f0a03b172b3216893c..bb290fa6aaf1ae9ccdeba64e9a3941ed734b0184 100644 (file)
 */
 
 #include <algorithm>
+#include <vector>
+
+#include <glib.h>
+#include <glib/gstdio.h>
 
 #include <glibmm/fileutils.h>
+#include <glibmm/miscutils.h>
 #include <glibmm/pattern.h>
 
-#include <pbd/compose.h>
-#include <pbd/file_utils.h>
+#include <giomm/file.h>
+
+#include "pbd/compose.h"
+#include "pbd/file_utils.h"
+#include "pbd/error.h"
+#include "pbd/pathscanner.h"
+#include "pbd/stl_delete.h"
 
-#include <pbd/error.h>
+#include "i18n.h"
+
+using namespace std;
 
 namespace PBD {
 
 void
-get_files_in_directory (const sys::path& directory_path, vector<string>& result)
+get_files_in_directory (const std::string& directory_path, vector<string>& result)
 {
-       if (!is_directory(directory_path)) return;
+       if (!Glib::file_test (directory_path, Glib::FILE_TEST_IS_DIR)) return;
 
        try
        {
-               Glib::Dir dir(directory_path.to_string());
+               Glib::Dir dir(directory_path);
                std::copy(dir.begin(), dir.end(), std::back_inserter(result));
        }
        catch (Glib::FileError& err)
@@ -46,13 +58,14 @@ get_files_in_directory (const sys::path& directory_path, vector<string>& result)
 }
 
 void
-find_matching_files_in_directory (const sys::path& directory,
+find_matching_files_in_directory (const std::string& directory,
                                   const Glib::PatternSpec& pattern,
-                                  vector<sys::path>& result)
+                                  vector<std::string>& result)
 {
        vector<string> tmp_files;
 
        get_files_in_directory (directory, tmp_files);
+       result.reserve(tmp_files.size());
 
        for (vector<string>::iterator file_iter = tmp_files.begin();
                        file_iter != tmp_files.end();
@@ -60,19 +73,19 @@ find_matching_files_in_directory (const sys::path& directory,
        {
                if (!pattern.match(*file_iter)) continue;
 
-               sys::path full_path(directory);
-               full_path /= *file_iter;
+               std::string full_path(directory);
+               full_path = Glib::build_filename (full_path, *file_iter);
 
                result.push_back(full_path);
        }
 }
 
 void
-find_matching_files_in_directories (const vector<sys::path>& paths,
+find_matching_files_in_directories (const vector<std::string>& paths,
                                     const Glib::PatternSpec& pattern,
-                                    vector<sys::path>& result)
+                                    vector<std::string>& result)
 {
-       for (vector<sys::path>::const_iterator path_iter = paths.begin();
+       for (vector<std::string>::const_iterator path_iter = paths.begin();
                        path_iter != paths.end();
                        ++path_iter)
        {
@@ -83,33 +96,23 @@ find_matching_files_in_directories (const vector<sys::path>& paths,
 void
 find_matching_files_in_search_path (const SearchPath& search_path,
                                     const Glib::PatternSpec& pattern,
-                                    vector<sys::path>& result)
+                                    vector<std::string>& result)
 {
-       vector<sys::path> dirs;
-       std::copy(search_path.begin(), search_path.end(), std::back_inserter(dirs));
-       find_matching_files_in_directories (dirs, pattern, result);    
+       find_matching_files_in_directories (search_path, pattern, result);    
 }
 
 bool
 find_file_in_search_path(const SearchPath& search_path,
                          const string& filename,
-                         sys::path& result)
+                         std::string& result)
 {
-       vector<sys::path> tmp;
+       vector<std::string> tmp;
        Glib::PatternSpec tmp_pattern(filename);
 
        find_matching_files_in_search_path (search_path, tmp_pattern, tmp);
 
        if (tmp.size() == 0)
        {
-               info << string_compose
-                       (
-                        "Found no file named %1 in search path %2",
-                        filename,
-                        search_path.to_string ()
-                       )
-                       << endmsg;
-
                return false;
        }
 
@@ -120,7 +123,7 @@ find_file_in_search_path(const SearchPath& search_path,
                        (
                         "Found more than one file matching %1 in search path %2",
                         filename,
-                        search_path.to_string ()
+                        search_path ()
                        )
                        << endmsg;
        }
@@ -131,4 +134,113 @@ find_file_in_search_path(const SearchPath& search_path,
        return true;
 }
 
+bool
+copy_file(const std::string & from_path, const std::string & to_path)
+{
+       if (!Glib::file_test (from_path, Glib::FILE_TEST_EXISTS)) return false;
+
+       Glib::RefPtr<Gio::File> from_file = Gio::File::create_for_path(from_path);
+       Glib::RefPtr<Gio::File> to_file = Gio::File::create_for_path(to_path);
+
+       try
+       {
+               from_file->copy (to_file, Gio::FILE_COPY_OVERWRITE);
+       }
+       catch(const Glib::Exception& ex)
+       {
+               error << string_compose (_("Unable to Copy file %1 to %2 (%3)"),
+                               from_path, to_path, ex.what())
+                       << endmsg;
+               return false;
+       }
+       return true;
+}
+
+static
+bool accept_all_files (string const &, void *)
+{
+       return true;
+}
+
+void
+copy_files(const std::string & from_path, const std::string & to_dir)
+{
+       PathScanner scanner;
+       vector<string*>* files = scanner (from_path, accept_all_files, 0, true, false);
+
+       if (files) {
+               for (vector<string*>::iterator i = files->begin(); i != files->end(); ++i) {
+                       std::string from = Glib::build_filename (from_path, **i);
+                       std::string to = Glib::build_filename (to_dir, **i);
+                       copy_file (from, to);
+               }
+               vector_delete (files);
+       }
+}
+
+std::string
+get_absolute_path (const std::string & p)
+{
+       Glib::RefPtr<Gio::File> f = Gio::File::create_for_path (p);
+       return f->get_path ();
+}
+
+bool
+equivalent_paths (const std::string& a, const std::string& b)
+{
+       struct stat bA;
+       int const rA = g_stat (a.c_str(), &bA);
+       struct stat bB;
+       int const rB = g_stat (b.c_str(), &bB);
+
+       return (rA == 0 && rB == 0 && bA.st_dev == bB.st_dev && bA.st_ino == bB.st_ino);
+}
+
+bool
+path_is_within (std::string const & haystack, std::string needle)
+{
+       while (1) {
+               if (equivalent_paths (haystack, needle)) {
+                       return true;
+               }
+
+               needle = Glib::path_get_dirname (needle);
+               if (needle == "." || needle == "/") {
+                       break;
+               }
+       }
+
+       return false;
+}
+
+bool
+exists_and_writable (const std::string & p)
+{
+       /* writable() really reflects the whole folder, but if for any
+          reason the session state file can't be written to, still
+          make us unwritable.
+       */
+
+       struct stat statbuf;
+
+       if (g_stat (p.c_str(), &statbuf) != 0) {
+               /* doesn't exist - not writable */
+               return false;
+       } else {
+               if (!(statbuf.st_mode & S_IWUSR)) {
+                       /* exists and is not writable */
+                       return false;
+               }
+               /* filesystem may be mounted read-only, so even though file
+                * permissions permit access, the mount status does not.
+                * access(2) seems like the best test for this.
+                */
+               if (g_access (p.c_str(), W_OK) != 0) {
+                       return false;
+               }
+       }
+
+       return true;
+}
+
 } // namespace PBD