Move to src dir.

[edumed.git] / src / catalogue / management / commands / importlessons.py

diff --git a/src/catalogue/management/commands/importlessons.py b/src/catalogue/management/commands/importlessons.py
new file mode 100755 (executable)
index 0000000..296590b
--- /dev/null
+++ b/src/catalogue/management/commands/importlessons.py
@@ -0,0 +1,148 @@
+# -*- coding: utf-8 -*-
+# This file is part of EduMed, licensed under GNU Affero GPLv3 or later.
+# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
+#
+import os
+import sys
+from optparse import make_option
+
+from django.core.management.base import BaseCommand
+from django.db import transaction
+
+from catalogue.models import Lesson, Section
+from librarian import IOFile
+
+
+class Command(BaseCommand):
+    option_list = BaseCommand.option_list + (
+        make_option('-q', '--quiet', action='store_false', dest='verbose', default=True,
+                    help='Verbosity level; 0=minimal output, 1=normal output, 2=all output'),
+        make_option('-a', '--attachments', dest='attachments', metavar="PATH", default='materialy',
+                    help='Attachments dir path.'),
+        make_option('--ignore-incomplete', action='store_true', dest='ignore_incomplete', default=False,
+                    help='Attachments dir path.'),
+        make_option('--dont-repackage', action='store_false', dest='repackage', default=True,
+                    help='Don\'t refresh level packages.'),
+    )
+    help = 'Imports lessons from the specified directories.'
+    args = 'directory [directory ...]'
+
+    def __init__(self):
+        super(Command, self).__init__()
+        self.options = None
+        self.levels = None
+
+    @staticmethod
+    def all_attachments(path):
+        files = {}
+        if not os.path.isdir(path):
+            return files
+
+        def read_dir(path):
+            for name in os.listdir(path):
+                fullname = os.path.join(path, name)
+                if os.path.isdir(fullname):
+                    read_dir(fullname)
+                else:
+                    f = IOFile.from_filename(fullname)
+                    files[name.decode('utf-8')] = f
+                    files.setdefault(name.replace(" ", "").decode('utf-8'), f)
+
+        read_dir(path)
+        return files
+
+    @transaction.atomic
+    def handle(self, *directories, **options):
+
+        repackage = options.get('repackage')
+
+        self.levels = set()
+
+        curdir = os.path.abspath(os.curdir)
+        self.options = options
+
+        files_imported = 0
+        files_skipped = 0
+
+        for dir_name in directories:
+            abs_dir = os.path.join(curdir, dir_name)
+            if not os.path.isdir(abs_dir):
+                print self.style.ERROR("%s: Not a directory. Skipping." % abs_dir)
+            else:
+                files_imported_dir, files_skipped_dir = self.import_from_dir(abs_dir)
+                files_imported += files_imported_dir
+                files_skipped += files_skipped_dir
+
+        if self.levels and repackage:
+            print "Rebuilding level packages:"
+            for level in self.levels:
+                print level.name
+                level.build_packages()
+
+        # Print results
+        print
+        print "Results: %d files imported, %d skipped, %d total." % (
+            files_imported, files_skipped, files_imported + files_skipped)
+        print
+
+    def import_from_dir(self, abs_dir):
+        verbose = self.options.get('verbose')
+        files_imported = 0
+        files_skipped = 0
+        att_dir = os.path.join(abs_dir, self.options['attachments'])
+        attachments = self.all_attachments(att_dir)
+        # files queue
+        files = sorted(os.listdir(abs_dir))
+        postponed = {}
+        ignore_incomplete = set()
+        while files:
+            file_name = files.pop(0)
+            file_path = os.path.join(abs_dir, file_name)
+            file_base, ext = os.path.splitext(file_path)
+
+            if os.path.isdir(file_path):
+                dir_imported, dir_skipped = self.import_from_dir(file_path)
+                files_imported += dir_imported
+                files_skipped += files_skipped
+                continue
+
+            # Skip files that are not XML files
+            if not ext == '.xml':
+                continue
+
+            if verbose > 0:
+                print "Parsing '%s'" % file_path
+            else:
+                sys.stdout.write('.')
+                sys.stdout.flush()
+
+            try:
+                iofile = IOFile.from_filename(file_path)
+                iofile.attachments = attachments
+                lesson = Lesson.publish(iofile, file_name in ignore_incomplete)
+            except Section.IncompleteError:
+                if file_name not in postponed or postponed[file_name] < files_imported:
+                    # Push it back into the queue, maybe the missing lessons will show up.
+                    if verbose > 0:
+                        print self.style.NOTICE('Waiting for missing lessons.')
+                    files.append(file_name)
+                    postponed[file_name] = files_imported
+                elif self.options['ignore_incomplete'] and file_name not in ignore_incomplete:
+                    files.append(file_name)
+                    ignore_incomplete.add(file_name)
+                    postponed[file_name] = files_imported
+                else:
+                    # We're in a loop, nothing's being imported - some lesson is really missing.
+                    raise
+            except BaseException:
+                import traceback
+                traceback.print_exc()
+                files_skipped += 1
+            else:
+                files_imported += 1
+                if hasattr(lesson, 'level'):
+                    self.levels.add(lesson.level)
+            finally:
+                if verbose > 0:
+                    print
+        return files_imported, files_skipped