reinstate use of a MidiTrack's MIDI filter when reading from disk

[ardour.git] / libs / ardour / find_session.cc

diff --git a/libs/ardour/find_session.cc b/libs/ardour/find_session.cc
index f0a034d8d434301546a17608b3f9b572d9a36955..5ee9f47cc3be16179a75e5832c8fdf9faca6b390 100644 (file)
--- a/libs/ardour/find_session.cc
+++ b/libs/ardour/find_session.cc
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2012 Paul Davis 
+    Copyright (C) 2012 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
@@ -18,21 +18,27 @@
 */
 
 #include <unistd.h>
-#include <sys/stat.h>
 
 #include <cstring>
 #include <climits>
 #include <cerrno>
 
+#include "pbd/gstdio_compat.h"
+
 #include <glibmm/miscutils.h>
+#include <glibmm/fileutils.h>
 
+#include "pbd/basename.h"
 #include "pbd/compose.h"
+#include "pbd/file_archive.h"
+#include "pbd/pathexpand.h"
 #include "pbd/error.h"
 
 #include "ardour/filename_extensions.h"
 #include "ardour/utils.h"
+#include "ardour/session_utils.h"
 
-#include "i18n.h"
+#include "pbd/i18n.h"
 
 using namespace std;
 using namespace PBD;
@@ -42,21 +48,15 @@ namespace ARDOUR {
 int
 find_session (string str, string& path, string& snapshot, bool& isnew)
 {
-       struct stat statbuf;
-       char buf[PATH_MAX+1];
+       GStatBuf statbuf;
 
        isnew = false;
 
-       if (!realpath (str.c_str(), buf) && (errno != ENOENT && errno != ENOTDIR)) {
-               error << string_compose (_("Could not resolve path: %1 (%2)"), buf, strerror(errno)) << endmsg;
-               return -1;
-       }
-
-       str = buf;
+       str = canonical_path (str);
 
        /* check to see if it exists, and what it is */
 
-       if (stat (str.c_str(), &statbuf)) {
+       if (g_stat (str.c_str(), &statbuf)) {
                if (errno == ENOENT) {
                        isnew = true;
                } else {
@@ -85,7 +85,7 @@ find_session (string str, string& path, string& snapshot, bool& isnew)
 
                                /* is it there ? */
 
-                               if (stat (tmp.c_str(), &statbuf)) {
+                               if (g_stat (tmp.c_str(), &statbuf)) {
                                        error << string_compose (_("cannot check statefile %1 (%2)"), tmp, strerror (errno))
                                              << endmsg;
                                        return -1;
@@ -121,7 +121,10 @@ find_session (string str, string& path, string& snapshot, bool& isnew)
 
                        suffix = snapshot.find (statefile_suffix);
 
-                       if (suffix == string::npos) {
+                       const string::size_type start_pos_of_extension = snapshot.size () - strlen (statefile_suffix);
+                       // we should check the start of extension position
+                       // because files '*.ardour.bak' are possible
+                       if (suffix != start_pos_of_extension) {
                                error << string_compose (_("%1 is not a snapshot file"), str) << endmsg;
                                return -1;
                        }
@@ -185,4 +188,100 @@ find_session (string str, string& path, string& snapshot, bool& isnew)
        return 0;
 }
 
+/* check if zip is a session-archive,
+ * return > 0 if file is not an archive
+ * return < 0 if unzip failed
+ * return 0 on success.  path and snapshot are set.
+ */
+int
+inflate_session (const std::string& zipfile, const std::string& target_dir, string& path, string& snapshot)
+{
+       if (zipfile.find (".tar.xz") == string::npos) {
+               return 1;
+       }
+
+       try {
+               PBD::FileArchive ar (zipfile);
+               std::vector<std::string> files = ar.contents ();
+
+               if (files.size () == 0) {
+                       error << _("Archive is empty") << endmsg;
+                       return 2;
+               }
+
+               /* session archives are expected to be named after the archive */
+               std::string bn = Glib::path_get_dirname (files.front());
+               if (bn.empty ()) {
+                       error << _("Archive does not contain a session folder") << endmsg;
+                       return 3;
+               }
+
+               size_t sep = bn.find_first_of ('/');
+
+               if (sep != string::npos) {
+                       bn = bn.substr (0, sep);
+               }
+
+               if (bn.empty ()) {
+                       error << _("Archive does not contain a valid session structure") << endmsg;
+                       return 4;
+               }
+
+               string sn = Glib::build_filename (bn, bn + statefile_suffix);
+
+               if (std::find (files.begin(), files.end(), sn) == files.end()) {
+                       error << _("Archive does not contain a session file") << endmsg;
+                       return 5;
+               }
+
+               /* check if target folder exists */
+               string dest = Glib::build_filename (target_dir, bn);
+               if (Glib::file_test (dest, Glib::FILE_TEST_EXISTS)) {
+                       error << string_compose (_("Destination '%1' already exists."), dest) << endmsg;
+                       return -1;
+               }
+
+               if (0 == ar.inflate (target_dir)) {
+                       info << string_compose (_("Extracted session-archive to '%1'."), dest) << endmsg;
+                       path = dest;
+                       snapshot = bn;
+                       return 0;
+               }
+
+       } catch (...) {
+               error << _("Error reading file-archive") << endmsg;
+               return 6;
+       }
+
+       error << _("Error extracting file-archive") << endmsg;
+       return -2;
+}
+
+string inflate_error (int e) {
+       switch (e) {
+               case 0:
+                       return _("No Error");
+               case 1:
+                       return _("File extension is not .tar.xz");
+               case 2:
+                       return _("Archive is empty");
+               case 3:
+                       return _("Archive does not contain a session folder");
+               case 4:
+                       return _("Archive does not contain a valid session structure");
+               case 5:
+                       return _("Archive does not contain a session file");
+               case 6:
+                       return _("Error reading file-archive");
+               case -1:
+                       return _("Destination folder already exists.");
+               case -2:
+                       return _("Error extracting file-archive");
+               default:
+                       assert (0);
+                       break;
+       }
+       return _("Unknown Error");
+}
+
 }  // namespace ARDOUR