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1# Copyright 2017 The Chromium Authors. All rights reserved.
2# Use of this source code is governed by a BSD-style license that can be
3# found in the LICENSE file.
4
5
6# Recipe for the Skia PerCommit Housekeeper.
7
8DEPS = [
9  'build',
10  'recipe_engine/context',
11  'recipe_engine/file',
12  'recipe_engine/path',
13  'recipe_engine/properties',
14  'recipe_engine/python',
15  'recipe_engine/raw_io',
16  'recipe_engine/step',
17  'checkout',
18  'flavor',
19  'run',
20  'vars',
21]
22
23
24def RunSteps(api):
25  # Checkout, compile, etc.
26  api.vars.setup()
27  checkout_root = api.checkout.default_checkout_root
28  api.checkout.bot_update(checkout_root=checkout_root)
29  api.file.ensure_directory('makedirs tmp_dir', api.vars.tmp_dir)
30  api.flavor.setup()
31
32  cwd = api.path['checkout']
33
34  with api.context(cwd=cwd):
35    # Get a baseline diff. This should be empty, but we want to be flexible for
36    # cases where we have local diffs on purpose.
37    diff1 = api.run(
38        api.step,
39        'git diff #1',
40        cmd=['git', 'diff', '--no-ext-diff'],
41        stdout=api.m.raw_io.output()).stdout
42
43    # Touch all .fp files so that the generated files are rebuilt.
44    api.run(
45        api.python.inline,
46        'touch fp files',
47        program="""import os
48import subprocess
49
50for r, d, files in os.walk('%s'):
51  for f in files:
52    if f.endswith('.fp'):
53      path = os.path.join(r, f)
54      print 'touch %%s' %% path
55      subprocess.check_call(['touch', path])
56""" % cwd)
57
58    # Regenerate the SKSL files.
59    api.build(checkout_root=checkout_root,
60              out_dir=api.vars.build_dir.join('out', 'Release'))
61
62    # Get a second diff. If this doesn't match the first, then there have been
63    # modifications to the generated files.
64    diff2 = api.run(
65        api.step,
66        'git diff #2',
67        cmd=['git', 'diff', '--no-ext-diff'],
68        stdout=api.m.raw_io.output()).stdout
69
70    api.run(
71        api.python.inline,
72        'compare diffs',
73        program="""
74diff1 = '''%s'''
75
76diff2 = '''%s'''
77
78if diff1 != diff2:
79  print 'Generated files have been edited!'
80  exit(1)
81""" % (diff1, diff2))
82
83
84def GenTests(api):
85  yield (
86      api.test('Housekeeper-PerCommit-CheckGeneratedFiles') +
87      api.properties(buildername='Housekeeper-PerCommit-CheckGeneratedFiles',
88                     repository='https://skia.googlesource.com/skia.git',
89                     revision='abc123',
90                     path_config='kitchen',
91                     swarm_out_dir='[SWARM_OUT_DIR]') +
92      api.path.exists(api.path['start_dir'])
93  )
94