src/lib/check_content_change_job.cc

   1 /*
   2     Copyright (C) 2018-2019 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 "dcpomatic_log.h"
  27 #include <boost/foreach.hpp>
  28 #include <iostream>
  29
  30 #include "i18n.h"
  31
  32 using std::string;
  33 using std::list;
  34 using std::cout;
  35 using boost::shared_ptr;
  36
  37 CheckContentChangeJob::CheckContentChangeJob (shared_ptr<const Film> film, shared_ptr<Job> following)
  38         : Job (film)
  39         , _following (following)
  40 {
  41
  42 }
  43
  44 string
  45 CheckContentChangeJob::name () const
  46 {
  47         return _("Checking content for changes");
  48 }
  49
  50 string
  51 CheckContentChangeJob::json_name () const
  52 {
  53         return N_("check_content_change");
  54 }
  55
  56 void
  57 CheckContentChangeJob::run ()
  58 {
  59         set_progress_unknown ();
  60
  61         list<shared_ptr<Content> > changed;
  62
  63         BOOST_FOREACH (shared_ptr<Content> i, _film->content()) {
  64                 bool ic = false;
  65                 for (size_t j = 0; j < i->number_of_paths(); ++j) {
  66                         if (boost::filesystem::last_write_time(i->path(j)) != i->last_write_time(j)) {
  67                                 LOG_GENERAL("File %1 changed; last_write_time now %2, was %3", i->path(j).string(), boost::filesystem::last_write_time(i->path(j)), i->last_write_time(j));
  68                                 ic = true;
  69                                 break;
  70                         }
  71                 }
  72                 if (!ic && i->calculate_digest() != i->digest()) {
  73                         LOG_GENERAL("Content %1 changed; digest now %2, was %3", i->path(0).string(), i->calculate_digest(), i->digest());
  74                         ic = true;
  75                 }
  76                 if (ic) {
  77                         changed.push_back (i);
  78                 }
  79         }
  80
  81         BOOST_FOREACH (shared_ptr<Content> i, changed) {
  82                 JobManager::instance()->add(shared_ptr<Job>(new ExamineContentJob(_film, i)));
  83         }
  84
  85         if (!changed.empty()) {
  86                 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.");
  87                 if (_following) {
  88                         /* I'm assuming that _following is a make DCP job */
  89                         m += "  ";
  90                         m += _("Choose 'Make DCP' again when you have done this.");
  91                 }
  92                 set_message (m);
  93         } else if (_following) {
  94                 JobManager::instance()->add (_following);
  95         }
  96
  97         /* Only set this job as finished once we have added the following job, otherwise I think
  98            it's possible that the tests will sporadically fail if they check for all jobs being
  99            complete in the gap between this one finishing and _following being added.
 100         */
 101
 102         set_progress (1);
 103         set_state (FINISHED_OK);
 104 }