* gnu/packages/patches/python-2.7-source-date-epoch.patch: New file. * gnu/packages/python.scm (python-2)[source]: Use it. [arguments]: Set SOURCE_DATE_EPOCH in 'patch-lib-shells' phase. * guix/build/python-build-system.scm (set-SOURCE-DATE-EPOCH): New procedure. (%standard-phases): Add it. * gnu-system.am (dist_patch_DATA): Add patch.
		
			
				
	
	
		
			33 lines
		
	
	
	
		
			1.2 KiB
		
	
	
	
		
			Diff
		
	
	
	
	
	
			
		
		
	
	
			33 lines
		
	
	
	
		
			1.2 KiB
		
	
	
	
		
			Diff
		
	
	
	
	
	
Honor the 'SOURCE_DATE_EPOCH' environment variable to allow for
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determinitic builds.
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--- a/Lib/py_compile.py
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+++ b/Lib/py_compile.py
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@@ -105,7 +105,10 @@ def compile(file, cfile=None, dfile=None, doraise=False):
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     """
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     with open(file, 'U') as f:
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         try:
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-            timestamp = long(os.fstat(f.fileno()).st_mtime)
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+            if 'SOURCE_DATE_EPOCH' in os.environ:
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+                timestamp = long(os.environ['SOURCE_DATE_EPOCH'])
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+            else:
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+                timestamp = long(os.fstat(f.fileno()).st_mtime)
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         except AttributeError:
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             timestamp = long(os.stat(file).st_mtime)
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         codestring = f.read()
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diff --git a/Python/import.c b/Python/import.c
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index e47ce63..7eecf9c 100644
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--- a/Python/import.c
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+++ b/Python/import.c
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@@ -945,6 +945,11 @@ write_compiled_module(PyCodeObject *co, char *cpathname, struct stat *srcstat, t
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     /* Now write the true mtime (as a 32-bit field) */
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     fseek(fp, 4L, 0);
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     assert(mtime <= 0xFFFFFFFF);
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+    if (Py_GETENV("SOURCE_DATE_EPOCH") != NULL) {
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+	const char *epoch = Py_GETENV("SOURCE_DATE_EPOCH");
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+	mtime = atoi(epoch);
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+    }
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+
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     PyMarshal_WriteLongToFile((long)mtime, fp, Py_MARSHAL_VERSION);
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     fflush(fp);
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     fclose(fp);
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