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Set $___EASYBUILD___ environment variable to 'EasyBuild' to indicate that you're in an EasyBuild session #5058

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boegel merged 3 commits into from
Dec 3, 2025
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Set $___EASYBUILD___ environment variable to 'EasyBuild' to indicate that you're in an EasyBuild session #5058

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9e78979
Set an environment variable to indicate an EB session
ocaisa Nov 28, 2025
b426cd9
set $___EASYBUILD___ via prepare_main in main.py
boegel Dec 1, 2025
fef44a5
Merge pull request #48 from boegel/eb_session_var
ocaisa Dec 3, 2025
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1 change: 1 addition & 0 deletions easybuild/framework/easyblock.py
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Expand Up @@ -301,6 +301,7 @@ def __init__(self, ec, logfile=None):
self.orig_modulepath = os.getenv('MODULEPATH')

# keep track of initial environment we start in, so we can restore it if needed
os.environ['___EASYBUILD___'] = "EasyBuild" # set an environment variable to know we are in an EB session
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@ocaisa ocaisa Nov 28, 2025

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We need this before copying the initial environment as that environment gets restored before loading the module (which is exactly where we want to target a conditional load)

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@boegel boegel Nov 29, 2025

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@ocaisa Let's move this up, as the very first thing we do in __init__, just to make sure that we never do anything that involves calling out to external tools (which could take this into account) before this is set.

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@boegel boegel Nov 30, 2025

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Actually, this should be done way earlier, in main.py ?

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@boegel boegel Dec 1, 2025

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@ocaisa see proposed change in ocaisa#48

self.initial_environ = copy.deepcopy(os.environ)
self.reset_environ = None
self.tweaked_env_vars = {}
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