X-Git-Url: https://git.mdrn.pl/redakcja.git/blobdiff_plain/7e94b10a9875ce8b4d7d109606cdac85b0ab831d..5913c54d19b8f6775633176032161d49f9b2f1aa:/apps/dvcs/models.py

diff --git a/apps/dvcs/models.py b/apps/dvcs/models.py
deleted file mode 100644
index 18fe18fe..00000000
--- a/apps/dvcs/models.py
+++ /dev/null
@@ -1,151 +0,0 @@
-from django.db import models
-from django.contrib.auth.models import User
-from django.utils.translation import ugettext_lazy as _
-from mercurial import mdiff, simplemerge
-import pickle
-
-class Change(models.Model):
-    """
-        Single document change related to previous change. The "parent"
-        argument points to the version against which this change has been 
-        recorded. Initial text will have a null parent.
-        
-        Data contains a pickled diff needed to reproduce the initial document.
-    """
-    author = models.ForeignKey(User, null=True, blank=True)
-    patch = models.TextField(blank=True)
-    tree = models.ForeignKey('Document')
-
-    parent = models.ForeignKey('self',
-                        null=True, blank=True, default=None,
-                        related_name="children")
-
-    merge_parent = models.ForeignKey('self',
-                        null=True, blank=True, default=None,
-                        related_name="merge_children")
-
-    description = models.TextField(blank=True, default='')
-    created_at = models.DateTimeField(auto_now_add=True)
-
-    class Meta:
-        ordering = ('created_at',)
-
-    def __unicode__(self):
-        return u"Id: %r, Tree %r, Parent %r, Patch '''\n%s'''" % (self.id, self.tree_id, self.parent_id, self.patch)
-
-    @staticmethod
-    def make_patch(src, dst):
-        if isinstance(src, unicode):
-            src = src.encode('utf-8')
-        if isinstance(dst, unicode):
-            dst = dst.encode('utf-8')
-        return pickle.dumps(mdiff.textdiff(src, dst))
-
-    def materialize(self):
-        changes = Change.objects.exclude(parent=None).filter(
-                        tree=self.tree,
-                        created_at__lte=self.created_at).order_by('created_at')
-        text = u''
-        for change in changes:
-            text = change.apply_to(text)
-        return text
-
-    def make_child(self, patch, author, description):
-        return self.children.create(patch=patch,
-                        tree=self.tree, author=author,
-                        description=description)
-
-    def make_merge_child(self, patch, author, description):
-        return self.merge_children.create(patch=patch,
-                        tree=self.tree, author=author,
-                        description=description)
-
-    def apply_to(self, text):
-        return mdiff.patch(text, pickle.loads(self.patch.encode('ascii')))
-
-    def merge_with(self, other, author, description=u"Automatic merge."):
-        assert self.tree_id == other.tree_id  # same tree
-        if other.parent_id == self.pk:
-            # immediate child 
-            return other
-
-        local = self.materialize()
-        base = other.merge_parent.materialize()
-        remote = other.apply_to(base)
-
-        merge = simplemerge.Merge3Text(base, local, remote)
-        result = ''.join(merge.merge_lines())
-        patch = self.make_patch(local, result)
-        return self.children.create(
-                    patch=patch, merge_parent=other, tree=self.tree,
-                    author=author, description=description)
-
-
-class Document(models.Model):
-    """
-        File in repository.        
-    """
-    creator = models.ForeignKey(User, null=True, blank=True)
-    head = models.ForeignKey(Change,
-                    null=True, blank=True, default=None,
-                    help_text=_("This document's current head."))
-
-    def __unicode__(self):
-        return u"{0}, HEAD: {1}".format(self.id, self.head_id)
-
-    @models.permalink
-    def get_absolute_url(self):
-        return ('dvcs.views.document_data', (), {
-                        'document_id': self.id,
-                        'version': self.head_id,
-        })
-
-    def materialize(self, version=None):
-        if self.head is None:
-            return u''
-        if version is None:
-            version = self.head
-        elif not isinstance(version, Change):
-            version = self.change_set.get(pk=version)
-        return version.materialize()
-
-    def commit(self, **kwargs):
-        if 'parent' not in kwargs:
-            parent = self.head
-        else:
-            parent = kwargs['parent']
-            if not isinstance(parent, Change):
-                parent = Change.objects.get(pk=kwargs['parent'])
-
-        if 'patch' not in kwargs:
-            if 'text' not in kwargs:
-                raise ValueError("You must provide either patch or target document.")
-            patch = Change.make_patch(self.materialize(version=parent), kwargs['text'])
-        else:
-            if 'text' in kwargs:
-                raise ValueError("You can provide only text or patch - not both")
-            patch = kwargs['patch']
-
-        old_head = self.head
-        if parent != old_head:
-            change = parent.make_merge_child(patch, kwargs['author'], kwargs.get('description', ''))
-            # not Fast-Forward - perform a merge
-            self.head = old_head.merge_with(change, author=kwargs['author'])
-        else:
-            self.head = parent.make_child(patch, kwargs['author'], kwargs.get('description', ''))
-        self.save()
-        return self.head
-
-    def history(self):
-        return self.changes.all()
-
-    @staticmethod
-    def listener_initial_commit(sender, instance, created, **kwargs):
-        if created:
-            instance.head = Change.objects.create(
-                    author=instance.creator,
-                    patch=pickle.dumps(mdiff.textdiff('', '')),
-                    tree=instance)
-            instance.save()
-
-models.signals.post_save.connect(Document.listener_initial_commit, sender=Document)