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authorttt2017-05-13 00:29:47 +0530
committerttt2017-05-13 00:29:47 +0530
commitabf599be33b383a6a5baf9493093b2126a622ac8 (patch)
tree4c5ab6e0d935d5e65fabcf0258e4a00dd20a5afa /lib/python2.7/site-packages/south/management/commands/graphmigrations.py
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added all server files
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diff --git a/lib/python2.7/site-packages/south/management/commands/graphmigrations.py b/lib/python2.7/site-packages/south/management/commands/graphmigrations.py
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+"""
+Outputs a graphviz dot file of the dependencies.
+"""
+
+from __future__ import print_function
+
+from optparse import make_option
+import re
+import textwrap
+
+from django.core.management.base import BaseCommand
+from django.core.management.color import no_style
+
+from south.migration import Migrations, all_migrations
+
+class Command(BaseCommand):
+
+ help = "Outputs a GraphViz dot file of all migration dependencies to stdout."
+
+ def handle(self, **options):
+
+ # Resolve dependencies
+ Migrations.calculate_dependencies()
+
+ colors = [ 'crimson', 'darkgreen', 'darkgoldenrod', 'navy',
+ 'brown', 'darkorange', 'aquamarine' , 'blueviolet' ]
+ color_index = 0
+ wrapper = textwrap.TextWrapper(width=40)
+
+ print("digraph G {")
+
+ # Group each app in a subgraph
+ for migrations in all_migrations():
+ print(" subgraph %s {" % migrations.app_label())
+ print(" node [color=%s];" % colors[color_index])
+ for migration in migrations:
+ # Munge the label - text wrap and change _ to spaces
+ label = "%s - %s" % (
+ migration.app_label(), migration.name())
+ label = re.sub(r"_+", " ", label)
+ label= "\\n".join(wrapper.wrap(label))
+ print(' "%s.%s" [label="%s"];' % (
+ migration.app_label(), migration.name(), label))
+ print(" }")
+ color_index = (color_index + 1) % len(colors)
+
+ # For every migration, print its links.
+ for migrations in all_migrations():
+ for migration in migrations:
+ for other in migration.dependencies:
+ # Added weight tends to keep migrations from the same app
+ # in vertical alignment
+ attrs = "[weight=2.0]"
+ # But the more interesting edges are those between apps
+ if other.app_label() != migration.app_label():
+ attrs = "[style=bold]"
+ print(' "%s.%s" -> "%s.%s" %s;' % (
+ other.app_label(), other.name(),
+ migration.app_label(), migration.name(),
+ attrs
+ ))
+
+ print("}");