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-rw-r--r--buildstream/storage/_casbaseddirectory.py4
-rw-r--r--buildstream/storage/_filebaseddirectory.py2
-rw-r--r--buildstream/storage/directory.py3
-rw-r--r--tests/frontend/buildcheckout.py20
4 files changed, 25 insertions, 4 deletions
diff --git a/buildstream/storage/_casbaseddirectory.py b/buildstream/storage/_casbaseddirectory.py
index b8a247134..96a7aa79d 100644
--- a/buildstream/storage/_casbaseddirectory.py
+++ b/buildstream/storage/_casbaseddirectory.py
@@ -36,7 +36,7 @@ from .._protos.build.bazel.remote.execution.v2 import remote_execution_pb2
from .._exceptions import BstError
from .directory import Directory, VirtualDirectoryError
from ._filebaseddirectory import FileBasedDirectory
-from ..utils import FileListResult, safe_copy, list_relative_paths
+from ..utils import FileListResult, safe_copy, list_relative_paths, _magic_timestamp
class IndexEntry():
@@ -535,7 +535,7 @@ class CasBasedDirectory(Directory):
" The original error was: {}").
format(src_name, entry.target, e))
- def export_to_tar(self, tarfile, destination_dir, mtime=0):
+ def export_to_tar(self, tarfile, destination_dir, mtime=_magic_timestamp):
raise NotImplementedError()
def mark_changed(self):
diff --git a/buildstream/storage/_filebaseddirectory.py b/buildstream/storage/_filebaseddirectory.py
index 735179cb6..b919413f0 100644
--- a/buildstream/storage/_filebaseddirectory.py
+++ b/buildstream/storage/_filebaseddirectory.py
@@ -157,7 +157,7 @@ class FileBasedDirectory(Directory):
# First, it sorts the results of os.listdir() to ensure the ordering of
# the files in the archive is the same. Second, it sets a fixed
# timestamp for each entry. See also https://bugs.python.org/issue24465.
- def export_to_tar(self, tf, dir_arcname, mtime=0):
+ def export_to_tar(self, tf, dir_arcname, mtime=_magic_timestamp):
# We need directories here, including non-empty ones,
# so list_relative_paths is not used.
for filename in sorted(os.listdir(self.external_directory)):
diff --git a/buildstream/storage/directory.py b/buildstream/storage/directory.py
index 838741231..66b93a7f1 100644
--- a/buildstream/storage/directory.py
+++ b/buildstream/storage/directory.py
@@ -32,6 +32,7 @@ See also: :ref:`sandboxing`.
"""
from .._exceptions import BstError, ErrorDomain
+from ..utils import _magic_timestamp
class VirtualDirectoryError(BstError):
@@ -114,7 +115,7 @@ class Directory():
raise NotImplementedError()
- def export_to_tar(self, tarfile, destination_dir, mtime=0):
+ def export_to_tar(self, tarfile, destination_dir, mtime=_magic_timestamp):
""" Exports this directory into the given tar file.
Args:
diff --git a/tests/frontend/buildcheckout.py b/tests/frontend/buildcheckout.py
index 80d710f6f..598edbbbc 100644
--- a/tests/frontend/buildcheckout.py
+++ b/tests/frontend/buildcheckout.py
@@ -253,6 +253,26 @@ def test_build_checkout_tarball_stdout(datafiles, cli):
@pytest.mark.datafiles(DATA_DIR)
+def test_build_checkout_tarball_mtime_nonzero(datafiles, cli):
+ project = os.path.join(datafiles.dirname, datafiles.basename)
+ tarpath = os.path.join(cli.directory, 'mtime_tar.tar')
+
+ result = cli.run(project=project, args=['build', 'target.bst'])
+ result.assert_success()
+
+ checkout_args = ['artifact', 'checkout', '--tar', tarpath, 'target.bst']
+ result = cli.run(project=project, args=checkout_args)
+ result.assert_success()
+
+ tar = tarfile.TarFile(tarpath)
+ for tarinfo in tar.getmembers():
+ # An mtime of zero can be confusing to other software,
+ # e.g. ninja build and template toolkit have both taken zero mtime to
+ # mean 'file does not exist'.
+ assert tarinfo.mtime > 0
+
+
+@pytest.mark.datafiles(DATA_DIR)
def test_build_checkout_tarball_is_deterministic(datafiles, cli):
project = os.path.join(datafiles.dirname, datafiles.basename)
tarball1 = os.path.join(cli.directory, 'tarball1.tar')