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Have two reproducible timestamps #11395

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Have two reproducible timestamps #11395

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47a19aa
docs: Use SOURCE_DATE_EPOCH for the copyright year in doc footers
bmwiedemann Jul 27, 2026
89a37f7
erts: Use SOURCE_DATE_EPOCH for the year in generated erl_alloc_types.h
bmwiedemann Jul 27, 2026
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2 changes: 1 addition & 1 deletion erts/emulator/utils/make_alloc_types
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Original file line number Diff line number Diff line change
Expand Up @@ -190,7 +190,7 @@ print DST "/*
* -----------------------------------------------------------------------
*
*
* Copyright Ericsson AB ", (1900 + (localtime)[5]), ". All Rights Reserved.
* Copyright Ericsson AB ", (1900 + (localtime($ENV{SOURCE_DATE_EPOCH} || time))[5]), ". All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the \"License\");
* you may not use this file except in compliance with the License.
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12 changes: 11 additions & 1 deletion make/ex_doc.exs
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Expand Up @@ -177,7 +177,17 @@ extras =

annotations = Access.get(local_config, :annotations_for_docs, fn _ -> [] end)

current_datetime = System.os_time() |> DateTime.from_unix!(:native)
current_datetime =
case System.get_env("SOURCE_DATE_EPOCH") do
nil ->
System.os_time() |> DateTime.from_unix!(:native)

epoch ->
case Integer.parse(epoch) do
{seconds, ""} -> DateTime.from_unix!(seconds)
_ -> System.os_time() |> DateTime.from_unix!(:native)
end
end

## Check if we should treat warnings as errors
warnings_as_errors =
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