[Notes] [Git][BuildStream/buildstream][tpollard/workspacebuildtree] WIP: Opening a workspace with a cached build

[Tom Pollard <gitlab mg gitlab com>]

Title: GitLab

Tom Pollard pushed to branch tpollard/workspacebuildtree at BuildStream / buildstream

Commits:

• 2d298e1a
  by Tom Pollard at 2018-10-30T17:08:17Z

  WIP: Opening a workspace with a cached build
  

8 changed files:

• buildstream/_artifactcache/artifactcache.py
• buildstream/_artifactcache/cascache.py
• buildstream/_context.py
• buildstream/_frontend/cli.py
• buildstream/_stream.py
• buildstream/_workspaces.py
• buildstream/element.py
• tests/frontend/workspace.py

Changes:

buildstream/_artifactcache/artifactcache.py

---

...	...	@@ -604,6 +604,20 @@ class ArtifactCache():
604	604	raise ImplError("Cache '{kind}' does not implement calculate_cache_size()"
605	605	.format(kind=type(self).__name__))
606	606
	607	+ # checkout_artifact_subdir()
	608	+ #
	609	+ # Checkout given artifact subdir into provided directory
	610	+ #
	611	+ # Args:
	612	+ # element (Element): The Element
	613	+ # key (str): The cache key to use
	614	+ # subdir (str): The subdir to checkout
	615	+ # tmpdir (str): The dir to place the subdir content
	616	+ #
	617	+ def checkout_artifact_subdir(self, element, key, subdir, tmpdir):
	618	+ raise ImplError("Cache '{kind}' does not implement checkout_artifact_subdir()"
	619	+ .format(kind=type(self).__name__))
	620	+
607	621	################################################
608	622	# Local Private Methods #
609	623	################################################

buildstream/_artifactcache/cascache.py

---

...	...	@@ -457,6 +457,13 @@ class CASCache(ArtifactCache):
457	457
458	458	return pushed
459	459
	460	+ def checkout_artifact_subdir(self, element, key, subdir, tmpdir):
	461	+ tree = self.resolve_ref(self.get_artifact_fullname(element, key))
	462	+
	463	+ # This assumes that the subdir digest is present in the element tree
	464	+ subdirdigest = self._get_subdir(tree, subdir)
	465	+ self._checkout(tmpdir, subdirdigest)
	466	+
460	467	################################################
461	468	# API Private Methods #
462	469	################################################

buildstream/_context.py

---

...	...	@@ -114,6 +114,9 @@ class Context():
114	114	# Whether or not to attempt to pull buildtrees globally
115	115	self.pullbuildtrees = False
116	116
	117	+ # Whether to not include artifact buildtrees in workspaces if available
	118	+ self.workspacebuildtrees = True
	119	+
117	120	# Private variables
118	121	self._cache_key = None
119	122	self._message_handler = None
...	...	@@ -164,7 +167,7 @@ class Context():
164	167	_yaml.node_validate(defaults, [
165	168	'sourcedir', 'builddir', 'artifactdir', 'logdir',
166	169	'scheduler', 'artifacts', 'logging', 'projects',
167		- 'cache', 'pullbuildtrees'
	170	+ 'cache', 'pullbuildtrees', 'workspacebuildtrees'
168	171	])
169	172
170	173	for directory in ['sourcedir', 'builddir', 'artifactdir', 'logdir']:
...	...	@@ -192,6 +195,9 @@ class Context():
192	195	# Load pull buildtrees configuration
193	196	self.pullbuildtrees = _yaml.node_get(defaults, bool, 'pullbuildtrees', default_value='False')
194	197
	198	+ # Load workspace buildtrees configuration
	199	+ self.workspacebuildtrees = _yaml.node_get(defaults, bool, 'workspacebuildtrees', default_value='True')
	200	+
195	201	# Load logging config
196	202	logging = _yaml.node_get(defaults, Mapping, 'logging')
197	203	_yaml.node_validate(logging, [

buildstream/_frontend/cli.py

---

...	...	@@ -681,17 +681,21 @@ def workspace():
681	681	##################################################################
682	682	@workspace.command(name='open', short_help="Open a new workspace")
683	683	@click.option('--no-checkout', default=False, is_flag=True,
684		- help="Do not checkout the source, only link to the given directory")
	684	+ help="Do not checkout the source or cached buildtree, only link to the given directory")
685	685	@click.option('--force', '-f', default=False, is_flag=True,
686	686	help="Overwrite files existing in checkout directory")
687	687	@click.option('--track', 'track_', default=False, is_flag=True,
688	688	help="Track and fetch new source references before checking out the workspace")
	689	+@click.option('--no-cache', default=False, is_flag=True,
	690	+ help="Do not checkout the cached buildtree")
689	691	@click.argument('element',
690	692	type=click.Path(readable=False))
691	693	@click.argument('directory', type=click.Path(file_okay=False))
692	694	@click.pass_obj
693		-def workspace_open(app, no_checkout, force, track_, element, directory):
694		- """Open a workspace for manual source modification"""
	695	+def workspace_open(app, no_checkout, force, track_, no_cache, element, directory):
	696	+ """Open a workspace for manual source modification, the elements buildtree
	697	+ will be provided if available in the local artifact cache.
	698	+ """
695	699
696	700	if os.path.exists(directory):
697	701
...	...	@@ -703,11 +707,15 @@ def workspace_open(app, no_checkout, force, track_, element, directory):
703	707	click.echo("Checkout directory is not empty: {}".format(directory), err=True)
704	708	sys.exit(-1)
705	709
	710	+ if not no_cache and not no_checkout:
	711	+ click.echo("WARNING: Workspace will be opened without the cached buildtree if not cached locally")
	712	+
706	713	with app.initialized():
707	714	app.stream.workspace_open(element, directory,
708	715	no_checkout=no_checkout,
709	716	track_first=track_,
710		- force=force)
	717	+ force=force,
	718	+ no_cache=no_cache)
711	719
712	720
713	721	##################################################################

buildstream/_stream.py

---

...	...	@@ -463,11 +463,17 @@ class Stream():
463	463	# no_checkout (bool): Whether to skip checking out the source
464	464	# track_first (bool): Whether to track and fetch first
465	465	# force (bool): Whether to ignore contents in an existing directory
	466	+ # no_cache (bool): Whether to not include the cached buildtree
466	467	#
467	468	def workspace_open(self, target, directory, *,
468	469	no_checkout,
469	470	track_first,
470		- force):
	471	+ force,
	472	+ no_cache):
	473	+
	474	+ # Override no_cache if the global user conf workspacebuildtrees is false
	475	+ if not self._context.workspacebuildtrees:
	476	+ no_cache = True
471	477
472	478	if track_first:
473	479	track_targets = (target,)
...	...	@@ -480,6 +486,20 @@ class Stream():
480	486	target = elements[0]
481	487	directory = os.path.abspath(directory)
482	488
	489	+ # Check if given target has a buildtree artifact cached locally
	490	+ buildtree = None
	491	+ if target._cached():
	492	+ buildtree = self._artifacts.contains_subdir_artifact(target, target._get_cache_key(), 'buildtree')
	493	+
	494	+ # If we're running in the default state, make the user aware of buildtree usage
	495	+ if not no_cache and not no_checkout:
	496	+ if buildtree:
	497	+ self._message(MessageType.INFO, "{} buildtree artifact is available,"
	498	+ " workspace will be opened with it".format(target.name))
	499	+ else:
	500	+ self._message(MessageType.WARN, "{} buildtree artifact not available,"
	501	+ " workspace will be opened with source checkout".format(target.name))
	502	+
483	503	if not list(target.sources()):
484	504	build_depends = [x.name for x in target.dependencies(Scope.BUILD, recurse=False)]
485	505	if not build_depends:
...	...	@@ -511,6 +531,7 @@ class Stream():
511	531	"fetch the latest version of the " +
512	532	"source.")
513	533
	534	+ # Presume workspace to be forced if previous StreamError not raised
514	535	if workspace:
515	536	workspaces.delete_workspace(target._get_full_name())
516	537	workspaces.save_config()
...	...	@@ -520,11 +541,16 @@ class Stream():
520	541	except OSError as e:
521	542	raise StreamError("Failed to create workspace directory: {}".format(e)) from e
522	543
523		- workspaces.create_workspace(target._get_full_name(), directory)
524		-
525		- if not no_checkout:
526		- with target.timed_activity("Staging sources to {}".format(directory)):
527		- target._open_workspace()
	544	+ # Handle opening workspace with buildtree included
	545	+ if (buildtree and not no_cache) and not no_checkout:
	546	+ workspaces.create_workspace(target._get_full_name(), directory, cached_build=buildtree)
	547	+ with target.timed_activity("Staging buildtree to {}".format(directory)):
	548	+ target._open_workspace(buildtree=buildtree)
	549	+ else:
	550	+ workspaces.create_workspace(target._get_full_name(), directory)
	551	+ if (not buildtree or no_cache) and not no_checkout:
	552	+ with target.timed_activity("Staging sources to {}".format(directory)):
	553	+ target._open_workspace()
528	554
529	555	workspaces.save_config()
530	556	self._message(MessageType.INFO, "Saved workspace configuration")
...	...	@@ -608,10 +634,24 @@ class Stream():
608	634	.format(workspace_path, e)) from e
609	635
610	636	workspaces.delete_workspace(element._get_full_name())
611		- workspaces.create_workspace(element._get_full_name(), workspace_path)
	637	+
	638	+ # Create the workspace, ensuring the original optional cached build state is preserved if
	639	+ # possible.
	640	+ buildtree = False
	641	+ if workspace.cached_build and element._cached():
	642	+ if self._artifacts.contains_subdir_artifact(element, element._get_cache_key(), 'buildtree'):
	643	+ buildtree = True
	644	+
	645	+ # Warn the user if the workspace cannot be opened with the original cached build state
	646	+ if workspace.cached_build and not buildtree:
	647	+ self._message(MessageType.WARN, "{} original buildtree artifact not available,"
	648	+ " workspace will be opened with source checkout".format(element.name))
	649	+
	650	+ workspaces.create_workspace(element._get_full_name(), workspace_path,
	651	+ cached_build=buildtree)
612	652
613	653	with element.timed_activity("Staging sources to {}".format(workspace_path)):
614		- element._open_workspace()
	654	+ element._open_workspace(buildtree=buildtree)
615	655
616	656	self._message(MessageType.INFO,
617	657	"Reset workspace for {} at: {}".format(element.name,

buildstream/_workspaces.py

---

...	...	@@ -24,7 +24,7 @@ from . import _yaml
24	24	from ._exceptions import LoadError, LoadErrorReason
25	25
26	26
27		-BST_WORKSPACE_FORMAT_VERSION = 3
	27	+BST_WORKSPACE_FORMAT_VERSION = 4
28	28
29	29
30	30	# Workspace()
...	...	@@ -43,9 +43,11 @@ BST_WORKSPACE_FORMAT_VERSION = 3
43	43	# running_files (dict): A dict mapping dependency elements to files
44	44	# changed between failed builds. Should be
45	45	# made obsolete with failed build artifacts.
	46	+# cached_build (bool): If the workspace is staging the cached build artifact
46	47	#
47	48	class Workspace():
48		- def __init__(self, toplevel_project, *, last_successful=None, path=None, prepared=False, running_files=None):
	49	+ def __init__(self, toplevel_project, *, last_successful=None, path=None, prepared=False,
	50	+ running_files=None, cached_build=False):
49	51	self.prepared = prepared
50	52	self.last_successful = last_successful
51	53	self._path = path
...	...	@@ -53,6 +55,7 @@ class Workspace():
53	55
54	56	self._toplevel_project = toplevel_project
55	57	self._key = None
	58	+ self.cached_build = cached_build
56	59
57	60	# to_dict()
58	61	#
...	...	@@ -65,7 +68,8 @@ class Workspace():
65	68	ret = {
66	69	'prepared': self.prepared,
67	70	'path': self._path,
68		- 'running_files': self.running_files
	71	+ 'running_files': self.running_files,
	72	+ 'cached_build': self.cached_build
69	73	}
70	74	if self.last_successful is not None:
71	75	ret["last_successful"] = self.last_successful
...	...	@@ -224,12 +228,13 @@ class Workspaces():
224	228	# Args:
225	229	# element_name (str) - The element name to create a workspace for
226	230	# path (str) - The path in which the workspace should be kept
	231	+ # cached_build (bool) - If the workspace is staging the cached build artifact
227	232	#
228		- def create_workspace(self, element_name, path):
	233	+ def create_workspace(self, element_name, path, cached_build=False):
229	234	if path.startswith(self._toplevel_project.directory):
230	235	path = os.path.relpath(path, self._toplevel_project.directory)
231	236
232		- self._workspaces[element_name] = Workspace(self._toplevel_project, path=path)
	237	+ self._workspaces[element_name] = Workspace(self._toplevel_project, path=path, cached_build=cached_build)
233	238
234	239	return self._workspaces[element_name]
235	240
...	...	@@ -396,6 +401,7 @@ class Workspaces():
396	401	'path': _yaml.node_get(node, str, 'path'),
397	402	'last_successful': _yaml.node_get(node, str, 'last_successful', default_value=None),
398	403	'running_files': _yaml.node_get(node, dict, 'running_files', default_value=None),
	404	+ 'cached_build': _yaml.node_get(node, bool, 'cached_build', default_value=False)
399	405	}
400	406	return Workspace.from_dict(self._toplevel_project, dictionary)
401	407

buildstream/element.py

---

...	...	@@ -1911,7 +1911,10 @@ class Element(Plugin):
1911	1911	# This requires that a workspace already be created in
1912	1912	# the workspaces metadata first.
1913	1913	#
1914		- def _open_workspace(self):
	1914	+ # Args:
	1915	+ # buildtree (bool): Whether to open workspace with artifact buildtree
	1916	+ #
	1917	+ def _open_workspace(self, buildtree=False):
1915	1918	context = self._get_context()
1916	1919	workspace = self._get_workspace()
1917	1920	assert workspace is not None
...	...	@@ -1924,12 +1927,22 @@ class Element(Plugin):
1924	1927	# files in the target directory actually works without any
1925	1928	# additional support from Source implementations.
1926	1929	#
	1930	+
1927	1931	os.makedirs(context.builddir, exist_ok=True)
1928		- with utils._tempdir(dir=context.builddir, prefix='workspace-{}'
1929		- .format(self.normal_name)) as temp:
	1932	+ with utils._tempdir(dir=context.builddir, prefix='workspace-source-{}'
	1933	+ .format(self.normal_name)) as temp,\
	1934	+ utils._tempdir(dir=context.builddir, prefix='workspace-buildtree-{}'
	1935	+ .format(self.normal_name)) as buildtreetemp:
	1936	+
1930	1937	for source in self.sources():
1931	1938	source._init_workspace(temp)
1932	1939
	1940	+ # Overwrite the source checkout with the cached buildtree
	1941	+ if buildtree:
	1942	+ self.__artifacts.checkout_artifact_subdir(self, self._get_cache_key(), 'buildtree', buildtreetemp)
	1943	+ if utils._call([utils.get_host_tool('cp'), '-pfr', "".join((buildtreetemp, '/.')), temp])[0] != 0:
	1944	+ raise ElementError("Failed to copy buildtree into workspace checkout at {}".format(buildtreetemp))
	1945	+
1933	1946	# Now hardlink the files into the workspace target.
1934	1947	utils.link_files(temp, workspace.get_absolute_path())
1935	1948

tests/frontend/workspace.py

---

...	...	@@ -44,7 +44,7 @@ DATA_DIR = os.path.join(
44	44
45	45
46	46	def open_workspace(cli, tmpdir, datafiles, kind, track, suffix='', workspace_dir=None,
47		- project_path=None, element_attrs=None):
	47	+ project_path=None, element_attrs=None, no_cache=False):
48	48	if not workspace_dir:
49	49	workspace_dir = os.path.join(str(tmpdir), 'workspace{}'.format(suffix))
50	50	if not project_path:
...	...	@@ -88,6 +88,8 @@ def open_workspace(cli, tmpdir, datafiles, kind, track, suffix='', workspace_dir
88	88	args = ['workspace', 'open']
89	89	if track:
90	90	args.append('--track')
	91	+ if no_cache:
	92	+ args.append('--no-cache')
91	93	args.extend([element_name, workspace_dir])
92	94	result = cli.run(project=project_path, args=args)
93	95
...	...	@@ -101,7 +103,7 @@ def open_workspace(cli, tmpdir, datafiles, kind, track, suffix='', workspace_dir
101	103	filename = os.path.join(workspace_dir, 'usr', 'bin', 'hello')
102	104	assert os.path.exists(filename)
103	105
104		- return (element_name, project_path, workspace_dir)
	106	+ return (element_name, project_path, workspace_dir, result)
105	107
106	108
107	109	@pytest.mark.datafiles(DATA_DIR)
...	...	@@ -112,7 +114,7 @@ def test_open(cli, tmpdir, datafiles, kind):
112	114
113	115	@pytest.mark.datafiles(DATA_DIR)
114	116	def test_open_bzr_customize(cli, tmpdir, datafiles):
115		- element_name, project, workspace = open_workspace(cli, tmpdir, datafiles, "bzr", False)
	117	+ element_name, project, workspace, _ = open_workspace(cli, tmpdir, datafiles, "bzr", False)
116	118
117	119	# Check that the .bzr dir exists
118	120	bzrdir = os.path.join(workspace, ".bzr")
...	...	@@ -137,7 +139,7 @@ def test_open_track(cli, tmpdir, datafiles, kind):
137	139	@pytest.mark.datafiles(DATA_DIR)
138	140	@pytest.mark.parametrize("kind", repo_kinds)
139	141	def test_open_force(cli, tmpdir, datafiles, kind):
140		- element_name, project, workspace = open_workspace(cli, tmpdir, datafiles, kind, False)
	142	+ element_name, project, workspace, _ = open_workspace(cli, tmpdir, datafiles, kind, False)
141	143
142	144	# Close the workspace
143	145	result = cli.run(project=project, args=[
...	...	@@ -158,7 +160,7 @@ def test_open_force(cli, tmpdir, datafiles, kind):
158	160	@pytest.mark.datafiles(DATA_DIR)
159	161	@pytest.mark.parametrize("kind", repo_kinds)
160	162	def test_open_force_open(cli, tmpdir, datafiles, kind):
161		- element_name, project, workspace = open_workspace(cli, tmpdir, datafiles, kind, False)
	163	+ element_name, project, workspace, _ = open_workspace(cli, tmpdir, datafiles, kind, False)
162	164
163	165	# Assert the workspace dir exists
164	166	assert os.path.exists(workspace)
...	...	@@ -173,7 +175,7 @@ def test_open_force_open(cli, tmpdir, datafiles, kind):
173	175	@pytest.mark.datafiles(DATA_DIR)
174	176	@pytest.mark.parametrize("kind", repo_kinds)
175	177	def test_open_force_different_workspace(cli, tmpdir, datafiles, kind):
176		- element_name, project, workspace = open_workspace(cli, tmpdir, datafiles, kind, False, "-alpha")
	178	+ element_name, project, workspace, _ = open_workspace(cli, tmpdir, datafiles, kind, False, "-alpha")
177	179
178	180	# Assert the workspace dir exists
179	181	assert os.path.exists(workspace)
...	...	@@ -183,7 +185,7 @@ def test_open_force_different_workspace(cli, tmpdir, datafiles, kind):
183	185
184	186	tmpdir = os.path.join(str(tmpdir), "-beta")
185	187	shutil.move(hello_path, hello1_path)
186		- element_name2, project2, workspace2 = open_workspace(cli, tmpdir, datafiles, kind, False, "-beta")
	188	+ element_name2, project2, workspace2, _ = open_workspace(cli, tmpdir, datafiles, kind, False, "-beta")
187	189
188	190	# Assert the workspace dir exists
189	191	assert os.path.exists(workspace2)
...	...	@@ -210,7 +212,7 @@ def test_open_force_different_workspace(cli, tmpdir, datafiles, kind):
210	212	@pytest.mark.datafiles(DATA_DIR)
211	213	@pytest.mark.parametrize("kind", repo_kinds)
212	214	def test_close(cli, tmpdir, datafiles, kind):
213		- element_name, project, workspace = open_workspace(cli, tmpdir, datafiles, kind, False)
	215	+ element_name, project, workspace, _ = open_workspace(cli, tmpdir, datafiles, kind, False)
214	216
215	217	# Close the workspace
216	218	result = cli.run(project=project, args=[
...	...	@@ -226,7 +228,7 @@ def test_close(cli, tmpdir, datafiles, kind):
226	228	def test_close_external_after_move_project(cli, tmpdir, datafiles):
227	229	workspace_dir = os.path.join(str(tmpdir), "workspace")
228	230	project_path = os.path.join(str(tmpdir), 'initial_project')
229		- element_name, _, _ = open_workspace(cli, tmpdir, datafiles, 'git', False, "", workspace_dir, project_path)
	231	+ element_name, _, _, _ = open_workspace(cli, tmpdir, datafiles, 'git', False, "", workspace_dir, project_path)
230	232	assert os.path.exists(workspace_dir)
231	233	moved_dir = os.path.join(str(tmpdir), 'external_project')
232	234	shutil.move(project_path, moved_dir)
...	...	@@ -246,8 +248,8 @@ def test_close_external_after_move_project(cli, tmpdir, datafiles):
246	248	def test_close_internal_after_move_project(cli, tmpdir, datafiles):
247	249	initial_dir = os.path.join(str(tmpdir), 'initial_project')
248	250	initial_workspace = os.path.join(initial_dir, 'workspace')
249		- element_name, _, _ = open_workspace(cli, tmpdir, datafiles, 'git', False,
250		- workspace_dir=initial_workspace, project_path=initial_dir)
	251	+ element_name, _, _, _ = open_workspace(cli, tmpdir, datafiles, 'git', False,
	252	+ workspace_dir=initial_workspace, project_path=initial_dir)
251	253	moved_dir = os.path.join(str(tmpdir), 'internal_project')
252	254	shutil.move(initial_dir, moved_dir)
253	255	assert os.path.exists(moved_dir)
...	...	@@ -265,7 +267,7 @@ def test_close_internal_after_move_project(cli, tmpdir, datafiles):
265	267
266	268	@pytest.mark.datafiles(DATA_DIR)
267	269	def test_close_removed(cli, tmpdir, datafiles):
268		- element_name, project, workspace = open_workspace(cli, tmpdir, datafiles, 'git', False)
	270	+ element_name, project, workspace, _ = open_workspace(cli, tmpdir, datafiles, 'git', False)
269	271
270	272	# Remove it first, closing the workspace should work
271	273	shutil.rmtree(workspace)
...	...	@@ -282,7 +284,7 @@ def test_close_removed(cli, tmpdir, datafiles):
282	284
283	285	@pytest.mark.datafiles(DATA_DIR)
284	286	def test_close_nonexistant_element(cli, tmpdir, datafiles):
285		- element_name, project, workspace = open_workspace(cli, tmpdir, datafiles, 'git', False)
	287	+ element_name, project, workspace, _ = open_workspace(cli, tmpdir, datafiles, 'git', False)
286	288	element_path = os.path.join(datafiles.dirname, datafiles.basename, 'elements', element_name)
287	289
288	290	# First brutally remove the element.bst file, ensuring that
...	...	@@ -304,9 +306,9 @@ def test_close_nonexistant_element(cli, tmpdir, datafiles):
304	306	def test_close_multiple(cli, tmpdir, datafiles):
305	307	tmpdir_alpha = os.path.join(str(tmpdir), 'alpha')
306	308	tmpdir_beta = os.path.join(str(tmpdir), 'beta')
307		- alpha, project, workspace_alpha = open_workspace(
	309	+ alpha, project, workspace_alpha, _ = open_workspace(
308	310	cli, tmpdir_alpha, datafiles, 'git', False, suffix='-alpha')
309		- beta, project, workspace_beta = open_workspace(
	311	+ beta, project, workspace_beta, _ = open_workspace(
310	312	cli, tmpdir_beta, datafiles, 'git', False, suffix='-beta')
311	313
312	314	# Close the workspaces
...	...	@@ -324,9 +326,9 @@ def test_close_multiple(cli, tmpdir, datafiles):
324	326	def test_close_all(cli, tmpdir, datafiles):
325	327	tmpdir_alpha = os.path.join(str(tmpdir), 'alpha')
326	328	tmpdir_beta = os.path.join(str(tmpdir), 'beta')
327		- alpha, project, workspace_alpha = open_workspace(
	329	+ alpha, project, workspace_alpha, _ = open_workspace(
328	330	cli, tmpdir_alpha, datafiles, 'git', False, suffix='-alpha')
329		- beta, project, workspace_beta = open_workspace(
	331	+ beta, project, workspace_beta, _ = open_workspace(
330	332	cli, tmpdir_beta, datafiles, 'git', False, suffix='-beta')
331	333
332	334	# Close the workspaces
...	...	@@ -343,7 +345,7 @@ def test_close_all(cli, tmpdir, datafiles):
343	345	@pytest.mark.datafiles(DATA_DIR)
344	346	def test_reset(cli, tmpdir, datafiles):
345	347	# Open the workspace
346		- element_name, project, workspace = open_workspace(cli, tmpdir, datafiles, 'git', False)
	348	+ element_name, project, workspace, _ = open_workspace(cli, tmpdir, datafiles, 'git', False)
347	349
348	350	# Modify workspace
349	351	shutil.rmtree(os.path.join(workspace, 'usr', 'bin'))
...	...	@@ -366,9 +368,9 @@ def test_reset_multiple(cli, tmpdir, datafiles):
366	368	# Open the workspaces
367	369	tmpdir_alpha = os.path.join(str(tmpdir), 'alpha')
368	370	tmpdir_beta = os.path.join(str(tmpdir), 'beta')
369		- alpha, project, workspace_alpha = open_workspace(
	371	+ alpha, project, workspace_alpha, _ = open_workspace(
370	372	cli, tmpdir_alpha, datafiles, 'git', False, suffix='-alpha')
371		- beta, project, workspace_beta = open_workspace(
	373	+ beta, project, workspace_beta, _ = open_workspace(
372	374	cli, tmpdir_beta, datafiles, 'git', False, suffix='-beta')
373	375
374	376	# Modify workspaces
...	...	@@ -392,9 +394,9 @@ def test_reset_all(cli, tmpdir, datafiles):
392	394	# Open the workspaces
393	395	tmpdir_alpha = os.path.join(str(tmpdir), 'alpha')
394	396	tmpdir_beta = os.path.join(str(tmpdir), 'beta')
395		- alpha, project, workspace_alpha = open_workspace(
	397	+ alpha, project, workspace_alpha, _ = open_workspace(
396	398	cli, tmpdir_alpha, datafiles, 'git', False, suffix='-alpha')
397		- beta, project, workspace_beta = open_workspace(
	399	+ beta, project, workspace_beta, _ = open_workspace(
398	400	cli, tmpdir_beta, datafiles, 'git', False, suffix='-beta')
399	401
400	402	# Modify workspaces
...	...	@@ -415,7 +417,7 @@ def test_reset_all(cli, tmpdir, datafiles):
415	417
416	418	@pytest.mark.datafiles(DATA_DIR)
417	419	def test_list(cli, tmpdir, datafiles):
418		- element_name, project, workspace = open_workspace(cli, tmpdir, datafiles, 'git', False)
	420	+ element_name, project, workspace, _ = open_workspace(cli, tmpdir, datafiles, 'git', False)
419	421
420	422	# Now list the workspaces
421	423	result = cli.run(project=project, args=[
...	...	@@ -437,7 +439,7 @@ def test_list(cli, tmpdir, datafiles):
437	439	@pytest.mark.parametrize("kind", repo_kinds)
438	440	@pytest.mark.parametrize("strict", [("strict"), ("non-strict")])
439	441	def test_build(cli, tmpdir, datafiles, kind, strict):
440		- element_name, project, workspace = open_workspace(cli, tmpdir, datafiles, kind, False)
	442	+ element_name, project, workspace, _ = open_workspace(cli, tmpdir, datafiles, kind, False)
441	443	checkout = os.path.join(str(tmpdir), 'checkout')
442	444
443	445	# Modify workspace
...	...	@@ -516,7 +518,7 @@ def test_buildable_no_ref(cli, tmpdir, datafiles):
516	518	@pytest.mark.parametrize("modification", [("addfile"), ("removefile"), ("modifyfile")])
517	519	@pytest.mark.parametrize("strict", [("strict"), ("non-strict")])
518	520	def test_detect_modifications(cli, tmpdir, datafiles, modification, strict):
519		- element_name, project, workspace = open_workspace(cli, tmpdir, datafiles, 'git', False)
	521	+ element_name, project, workspace, _ = open_workspace(cli, tmpdir, datafiles, 'git', False)
520	522	checkout = os.path.join(str(tmpdir), 'checkout')
521	523
522	524	# Configure strict mode
...	...	@@ -637,7 +639,8 @@ def test_list_unsupported_workspace(cli, tmpdir, datafiles, workspace_cfg):
637	639	"alpha.bst": {
638	640	"prepared": False,
639	641	"path": "/workspaces/bravo",
640		- "running_files": {}
	642	+ "running_files": {},
	643	+ "cached_build": False
641	644	}
642	645	}
643	646	}),
...	...	@@ -652,7 +655,8 @@ def test_list_unsupported_workspace(cli, tmpdir, datafiles, workspace_cfg):
652	655	"alpha.bst": {
653	656	"prepared": False,
654	657	"path": "/workspaces/bravo",
655		- "running_files": {}
	658	+ "running_files": {},
	659	+ "cached_build": False
656	660	}
657	661	}
658	662	}),
...	...	@@ -670,7 +674,8 @@ def test_list_unsupported_workspace(cli, tmpdir, datafiles, workspace_cfg):
670	674	"alpha.bst": {
671	675	"prepared": False,
672	676	"path": "/workspaces/bravo",
673		- "running_files": {}
	677	+ "running_files": {},
	678	+ "cached_build": False
674	679	}
675	680	}
676	681	}),
...	...	@@ -695,7 +700,8 @@ def test_list_unsupported_workspace(cli, tmpdir, datafiles, workspace_cfg):
695	700	"last_successful": "some_key",
696	701	"running_files": {
697	702	"beta.bst": ["some_file"]
698		- }
	703	+ },
	704	+ "cached_build": False
699	705	}
700	706	}
701	707	}),
...	...	@@ -715,7 +721,30 @@ def test_list_unsupported_workspace(cli, tmpdir, datafiles, workspace_cfg):
715	721	"alpha.bst": {
716	722	"prepared": True,
717	723	"path": "/workspaces/bravo",
718		- "running_files": {}
	724	+ "running_files": {},
	725	+ "cached_build": False
	726	+ }
	727	+ }
	728	+ }),
	729	+ # Test loading version 4
	730	+ ({
	731	+ "format-version": 4,
	732	+ "workspaces": {
	733	+ "alpha.bst": {
	734	+ "prepared": False,
	735	+ "path": "/workspaces/bravo",
	736	+ "running_files": {},
	737	+ "cached_build": True
	738	+ }
	739	+ }
	740	+ }, {
	741	+ "format-version": BST_WORKSPACE_FORMAT_VERSION,
	742	+ "workspaces": {
	743	+ "alpha.bst": {
	744	+ "prepared": False,
	745	+ "path": "/workspaces/bravo",
	746	+ "running_files": {},
	747	+ "cached_build": True
719	748	}
720	749	}
721	750	})
...	...	@@ -779,7 +808,7 @@ def test_list_supported_workspace(cli, tmpdir, datafiles, workspace_cfg, expecte
779	808	@pytest.mark.datafiles(DATA_DIR)
780	809	@pytest.mark.parametrize("kind", repo_kinds)
781	810	def test_inconsitent_pipeline_message(cli, tmpdir, datafiles, kind):
782		- element_name, project, workspace = open_workspace(cli, tmpdir, datafiles, kind, False)
	811	+ element_name, project, workspace, _ = open_workspace(cli, tmpdir, datafiles, kind, False)
783	812
784	813	shutil.rmtree(workspace)
785	814
...	...	@@ -793,8 +822,8 @@ def test_inconsitent_pipeline_message(cli, tmpdir, datafiles, kind):
793	822	@pytest.mark.parametrize("strict", [("strict"), ("non-strict")])
794	823	def test_cache_key_workspace_in_dependencies(cli, tmpdir, datafiles, strict):
795	824	checkout = os.path.join(str(tmpdir), 'checkout')
796		- element_name, project, workspace = open_workspace(cli, os.path.join(str(tmpdir), 'repo-a'),
797		- datafiles, 'git', False)
	825	+ element_name, project, workspace, _ = open_workspace(cli, os.path.join(str(tmpdir), 'repo-a'),
	826	+ datafiles, 'git', False)
798	827
799	828	element_path = os.path.join(project, 'elements')
800	829	back_dep_element_name = 'workspace-test-back-dep.bst'
...	...	@@ -869,10 +898,26 @@ def test_multiple_failed_builds(cli, tmpdir, datafiles):
869	898	]
870	899	}
871	900	}
872		- element_name, project, _ = open_workspace(cli, tmpdir, datafiles,
873		- "git", False, element_attrs=element_config)
	901	+ element_name, project, _, _ = open_workspace(cli, tmpdir, datafiles,
	902	+ "git", False, element_attrs=element_config)
874	903
875	904	for _ in range(2):
876	905	result = cli.run(project=project, args=["build", element_name])
877	906	assert "BUG" not in result.stderr
878	907	assert cli.get_element_state(project, element_name) != "cached"
	908	+
	909	+
	910	+@pytest.mark.datafiles(DATA_DIR)
	911	+def test_nocache_messages(cli, tmpdir, datafiles):
	912	+ # cli default WARN for source dropback possibility when no-cache flag is not passed
	913	+ element_name, project, workspace, result = open_workspace(cli, tmpdir, datafiles, 'git', False, suffix='1')
	914	+ assert "WARNING: Workspace will be opened without the cached buildtree if not cached locally" in result.output
	915	+
	916	+ # cli WARN for source dropback happening when no-cache flag not given, but buildtree not available
	917	+ assert "workspace will be opened with source checkout" in result.stderr
	918	+
	919	+ # cli default WARN for source dropback possibilty not given when no-cache flag is passed
	920	+ tmpdir = os.path.join(str(tmpdir), "2")
	921	+ element_name, project, workspace, result = open_workspace(cli, tmpdir, datafiles, 'git', False, suffix='2',
	922	+ no_cache=True)
	923	+ assert "WARNING: Workspace will be opened without the cached buildtree if not cached locally" not in result.output

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