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4 changes: 4 additions & 0 deletions dvc/cli.py
Original file line number Diff line number Diff line change
Expand Up @@ -823,6 +823,10 @@ def parse_args(argv=None):
action='store_true',
default=False,
help='Output DAG as ASCII.')
pipeline_show_parser.add_argument(
'--dot',
help='Write DAG in .dot format.'
)
pipeline_show_parser.add_argument(
'targets',
nargs='*',
Expand Down
29 changes: 25 additions & 4 deletions dvc/command/pipeline.py
Original file line number Diff line number Diff line change
Expand Up @@ -24,7 +24,7 @@ def _show(self, target, commands, outs):
else:
self.project.logger.info(n)

def _show_ascii(self, target, commands, outs):
def __build_graph(self, target, commands, outs):
import networkx
from dvc.stage import Stage

Expand All @@ -51,9 +51,6 @@ def _show_ascii(self, target, commands, outs):
else:
nodes.append(stage.relpath)

if len(nodes) == 0:
return

edges = []
for e in G.edges():
from_stage = stages[e[0]]
Expand All @@ -70,16 +67,40 @@ def _show_ascii(self, target, commands, outs):
else:
edges.append((from_stage.relpath, to_stage.relpath))

return nodes, edges

def _show_ascii(self, target, commands, outs):
nodes, edges = self.__build_graph(target, commands, outs)

if not nodes:
return

d = Dagascii(nodes, edges)
d.draw()

def __write_dot(self, target, commands, outs, filename):
import networkx
from networkx.drawing.nx_pydot import write_dot

_, edges = self.__build_graph(target, commands, outs)
edges = [edge[::-1] for edge in edges]

simple_g = networkx.DiGraph()
simple_g.add_edges_from(edges)
write_dot(simple_g, filename)

def run(self, unlock=False):
for target in self.args.targets:
try:
if self.args.ascii:
self._show_ascii(target,
self.args.commands,
self.args.outs)
elif self.args.dot:
self.__write_dot(target,
self.args.commands,
self.args.outs,
self.args.dot)
else:
self._show(target,
self.args.commands,
Expand Down
1 change: 1 addition & 0 deletions requirements.txt
Original file line number Diff line number Diff line change
Expand Up @@ -23,3 +23,4 @@ wheel>=0.31.1
futures>=3.2.0; python_version == "2.7"
grandalf==0.6
asciicanvas==0.0.3
pydot>=1.2.4
55 changes: 55 additions & 0 deletions tests/test_pipeline.py
Original file line number Diff line number Diff line change
Expand Up @@ -2,12 +2,14 @@

from tests.basic_env import TestDvc
from tests.test_repro import TestRepro, TestReproChangedDeepData
import os


class TestPipelineShowSingle(TestDvc):
def setUp(self):
super(TestPipelineShowSingle, self).setUp()
self.stage = 'foo.dvc'
self.dotFile = 'graph.dot'
ret = main(['add', self.FOO])
self.assertEqual(ret, 0)

Expand All @@ -27,6 +29,11 @@ def test_ascii(self):
ret = main(['pipeline', 'show', '--ascii', self.stage])
self.assertEqual(ret, 0)

def test_dot(self):
ret = main(['pipeline', 'show', '--dot', self.dotFile, self.stage])
self.assertEqual(ret, 0)
self.assertTrue(os.path.isfile(self.dotFile))

def test_ascii_commands(self):
ret = main(['pipeline', 'show', '--ascii', self.stage, '--commands'])
self.assertEqual(ret, 0)
Expand All @@ -35,6 +42,16 @@ def test_ascii_outs(self):
ret = main(['pipeline', 'show', '--ascii', self.stage, '--outs'])
self.assertEqual(ret, 0)

def test_dot_commands(self):
ret = main(['pipeline', 'show', '--dot', self.dotFile, self.stage, '--commands'])
self.assertEqual(ret, 0)
self.assertTrue(os.path.isfile(self.dotFile))

def test_dot_outs(self):
ret = main(['pipeline', 'show', '--dot', self.dotFile, self.stage, '--outs'])
self.assertEqual(ret, 0)
self.assertTrue(os.path.isfile(self.dotFile))

def test_not_dvc_file(self):
ret = main(['pipeline', 'show', self.FOO])
self.assertNotEqual(ret, 0)
Expand All @@ -45,6 +62,10 @@ def test_non_existing(self):


class TestPipelineShow(TestRepro):
def setUp(self):
super(TestPipelineShow, self).setUp()
self.dotFile = 'graph.dot'

def test(self):
ret = main(['pipeline', 'show', self.file1_stage])
self.assertEqual(ret, 0)
Expand All @@ -61,6 +82,11 @@ def test_ascii(self):
ret = main(['pipeline', 'show', '--ascii', self.file1_stage])
self.assertEqual(ret, 0)

def test_dot(self):
ret = main(['pipeline', 'show', '--dot', self.dotFile, self.file1_stage])
self.assertEqual(ret, 0)
self.assertTrue(os.path.isfile(self.dotFile))

def test_ascii_commands(self):
ret = main(['pipeline', 'show', '--ascii', self.file1_stage, '--commands'])
self.assertEqual(ret, 0)
Expand All @@ -69,6 +95,16 @@ def test_ascii_outs(self):
ret = main(['pipeline', 'show', '--ascii', self.file1_stage, '--outs'])
self.assertEqual(ret, 0)

def test_dot_commands(self):
ret = main(['pipeline', 'show', '--dot', self.dotFile, self.file1_stage, '--commands'])
self.assertEqual(ret, 0)
self.assertTrue(os.path.isfile(self.dotFile))

def test_dot_outs(self):
ret = main(['pipeline', 'show', '--dot', self.dotFile, self.file1_stage, '--outs'])
self.assertEqual(ret, 0)
self.assertTrue(os.path.isfile(self.dotFile))

def test_not_dvc_file(self):
ret = main(['pipeline', 'show', self.file1])
self.assertNotEqual(ret, 0)
Expand All @@ -79,6 +115,10 @@ def test_non_existing(self):


class TestPipelineShowDeep(TestReproChangedDeepData):
def setUp(self):
super(TestPipelineShowDeep, self).setUp()
self.dotFile = 'graph.dot'

def test(self):
ret = main(['pipeline', 'show', self.file1_stage])
self.assertEqual(ret, 0)
Expand All @@ -95,6 +135,11 @@ def test_ascii(self):
ret = main(['pipeline', 'show', '--ascii', self.file1_stage])
self.assertEqual(ret, 0)

def test_dot(self):
ret = main(['pipeline', 'show', '--dot', self.dotFile, self.file1_stage])
self.assertEqual(ret, 0)
self.assertTrue(os.path.isfile(self.dotFile))

def test_ascii_commands(self):
ret = main(['pipeline', 'show', '--ascii', self.file1_stage, '--commands'])
self.assertEqual(ret, 0)
Expand All @@ -103,6 +148,16 @@ def test_ascii_outs(self):
ret = main(['pipeline', 'show', '--ascii', self.file1_stage, '--outs'])
self.assertEqual(ret, 0)

def test_dot_commands(self):
ret = main(['pipeline', 'show', '--dot', self.dotFile, self.file1_stage, '--commands'])
self.assertEqual(ret, 0)
self.assertTrue(os.path.isfile(self.dotFile))

def test_dot_outs(self):
ret = main(['pipeline', 'show', '--dot', self.dotFile, self.file1_stage, '--outs'])
self.assertEqual(ret, 0)
self.assertTrue(os.path.isfile(self.dotFile))

def test_not_dvc_file(self):
ret = main(['pipeline', 'show', self.file1])
self.assertNotEqual(ret, 0)
Expand Down