diff options
| -rw-r--r-- | Doc/library/py_compile.rst | 7 | ||||
| -rw-r--r-- | Lib/py_compile.py | 2 | ||||
| -rw-r--r-- | Lib/test/test_py_compile.py | 12 | ||||
| -rw-r--r-- | Misc/NEWS.d/next/Build/2018-01-16-08-32-49.bpo-29708.YCaHEx.rst | 2 |
4 files changed, 22 insertions, 1 deletions
diff --git a/Doc/library/py_compile.rst b/Doc/library/py_compile.rst index a4f06de..d720e01 100644 --- a/Doc/library/py_compile.rst +++ b/Doc/library/py_compile.rst @@ -55,7 +55,9 @@ byte-code cache files in the directory containing the source code. *invalidation_mode* should be a member of the :class:`PycInvalidationMode` enum and controls how the generated ``.pyc`` files are invalidated at - runtime. + runtime. If the :envvar:`SOURCE_DATE_EPOCH` environment variable is set, + *invalidation_mode* will be forced to + :attr:`PycInvalidationMode.CHECKED_HASH`. .. versionchanged:: 3.2 Changed default value of *cfile* to be :PEP:`3147`-compliant. Previous @@ -71,6 +73,9 @@ byte-code cache files in the directory containing the source code. .. versionchanged:: 3.7 The *invalidation_mode* parameter was added as specified in :pep:`552`. + If the :envvar:`SOURCE_DATE_EPOCH` environment variable is set, + *invalidation_mode* will be forced to + :attr:`PycInvalidationMode.CHECKED_HASH`. .. class:: PycInvalidationMode diff --git a/Lib/py_compile.py b/Lib/py_compile.py index a0f4def..16dc0a0 100644 --- a/Lib/py_compile.py +++ b/Lib/py_compile.py @@ -112,6 +112,8 @@ def compile(file, cfile=None, dfile=None, doraise=False, optimize=-1, the resulting file would be regular and thus not the same type of file as it was previously. """ + if os.environ.get('SOURCE_DATE_EPOCH'): + invalidation_mode = PycInvalidationMode.CHECKED_HASH if cfile is None: if optimize >= 0: optimization = optimize if optimize >= 1 else '' diff --git a/Lib/test/test_py_compile.py b/Lib/test/test_py_compile.py index bcb686c..8fc0b33 100644 --- a/Lib/test/test_py_compile.py +++ b/Lib/test/test_py_compile.py @@ -98,6 +98,18 @@ class PyCompileTests(unittest.TestCase): self.assertFalse(os.path.exists( importlib.util.cache_from_source(bad_coding))) + def test_source_date_epoch(self): + testtime = 123456789 + with support.EnvironmentVarGuard() as env: + env["SOURCE_DATE_EPOCH"] = str(testtime) + py_compile.compile(self.source_path, self.pyc_path) + self.assertTrue(os.path.exists(self.pyc_path)) + self.assertFalse(os.path.exists(self.cache_path)) + with open(self.pyc_path, 'rb') as fp: + flags = importlib._bootstrap_external._classify_pyc( + fp.read(), 'test', {}) + self.assertEqual(flags, 0b11) + @unittest.skipIf(sys.flags.optimize > 0, 'test does not work with -O') def test_double_dot_no_clobber(self): # http://bugs.python.org/issue22966 diff --git a/Misc/NEWS.d/next/Build/2018-01-16-08-32-49.bpo-29708.YCaHEx.rst b/Misc/NEWS.d/next/Build/2018-01-16-08-32-49.bpo-29708.YCaHEx.rst new file mode 100644 index 0000000..e52c001 --- /dev/null +++ b/Misc/NEWS.d/next/Build/2018-01-16-08-32-49.bpo-29708.YCaHEx.rst @@ -0,0 +1,2 @@ +If the :envvar:`SOURCE_DATE_EPOCH` environment variable is set, +:mod:`py_compile` will always create hash-based ``.pyc`` files. |