src/lib/check_content_change_job.cc

   1 /*
   2     Copyright (C) 2018 Carl Hetherington <cth@carlh.net>
   3
   4     This file is part of DCP-o-matic.
   5
   6     DCP-o-matic is free software; you can redistribute it and/or modify
   7     it under the terms of the GNU General Public License as published by
   8     the Free Software Foundation; either version 2 of the License, or
   9     (at your option) any later version.
  10
  11     DCP-o-matic is distributed in the hope that it will be useful,
  12     but WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14     GNU General Public License for more details.
  15
  16     You should have received a copy of the GNU General Public License
  17     along with DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
  18
  19 */
  20
  21 #include "check_content_change_job.h"
  22 #include "job_manager.h"
  23 #include "examine_content_job.h"
  24 #include "content.h"
  25 #include "film.h"
  26 #include <boost/foreach.hpp>
  27 #include <iostream>
  28
  29 #include "i18n.h"
  30
  31 using std::string;
  32 using std::list;
  33 using std::cout;
  34 using boost::shared_ptr;
  35
  36 /** @param gui true if we are running this job from the GUI, false if it's the CLI */
  37 CheckContentChangeJob::CheckContentChangeJob (shared_ptr<const Film> film, shared_ptr<Job> following, bool gui)
  38         : Job (film)
  39         , _following (following)
  40         , _gui (gui)
  41 {
  42
  43 }
  44
  45 CheckContentChangeJob::~CheckContentChangeJob ()
  46 {
  47         stop_thread ();
  48 }
  49
  50 string
  51 CheckContentChangeJob::name () const
  52 {
  53         return _("Checking content for changes");
  54 }
  55
  56 string
  57 CheckContentChangeJob::json_name () const
  58 {
  59         return N_("check_content_change");
  60 }
  61
  62 void
  63 CheckContentChangeJob::run ()
  64 {
  65         set_progress_unknown ();
  66
  67         list<shared_ptr<Content> > changed;
  68
  69         BOOST_FOREACH (shared_ptr<Content> i, _film->content()) {
  70                 bool ic = false;
  71                 for (size_t j = 0; j < i->number_of_paths(); ++j) {
  72                         if (boost::filesystem::last_write_time(i->path(j)) != i->last_write_time(j)) {
  73                                 ic = true;
  74                                 break;
  75                         }
  76                 }
  77                 if (!ic && i->calculate_digest() != i->digest()) {
  78                         ic = true;
  79                 }
  80                 if (ic) {
  81                         changed.push_back (i);
  82                 }
  83         }
  84
  85         BOOST_FOREACH (shared_ptr<Content> i, changed) {
  86                 JobManager::instance()->add(shared_ptr<Job>(new ExamineContentJob(_film, i)));
  87         }
  88
  89         if (!changed.empty()) {
  90                 if (_gui) {
  91                         string m = _("Some files have been changed since they were added to the project.\n\nThese files will now be re-examined, so you may need to check their settings.");
  92                         if (_following) {
  93                                 /* I'm assuming that _following is a make DCP job */
  94                                 m += "  ";
  95                                 m += _("Choose 'Make DCP' again when you have done this.");
  96                         }
  97                         set_message (m);
  98                 } else {
  99                         set_progress (1);
 100                         set_state (FINISHED_ERROR);
 101                         set_error (
 102                                 _("Some files have been changed since they were added to the project.  Open the project in DCP-o-matic, check the settings, then save it before trying again."),
 103                                 ""
 104                                 );
 105                         return;
 106                 }
 107         } else if (_following) {
 108                 JobManager::instance()->add (_following);
 109         }
 110
 111         /* Only set this job as finished once we have added the following job, otherwise I think
 112            it's possible that the tests will sporadically fail if they check for all jobs being
 113            complete in the gap between this one finishing and _following being added.
 114         */
 115
 116         set_progress (1);
 117         set_state (FINISHED_OK);
 118 }