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environment : filter the current environment

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Previously only the environment obtained after sourcing the file was filtered.
This caused the appeareance of spurious unset commands in the list.
This commit is contained in:
alalazo 2016-06-18 13:39:08 +02:00
parent a17d1efe7c
commit 9e0c20c794
1 changed files with 8 additions and 6 deletions
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14
lib/spack/spack/environment.py
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@ -297,16 +297,18 @@ def from_sourcing_files(*args, **kwargs):
if proc.returncode != 0:
raise RuntimeError('sourcing files returned a non-zero exit code')
output = ''.join([line for line in proc.stdout])
# Construct a dictionary with all the variables in the environment
# Construct a dictionary with all the variables in the new environment
after_source_env = dict(json.loads(output))
this_environment = dict(os.environ)
# Filter variables that are due to how we source
after_source_env.pop('SHLVL')
after_source_env.pop('_')
after_source_env.pop('PWD')
# Filter variables that are not related to sourcing a file
to_be_filtered = 'SHLVL', '_', 'PWD', 'OLDPWD'
for d in after_source_env, this_environment:
for name in to_be_filtered:
d.pop(name, None)
# Fill the EnvironmentModifications instance
this_environment = dict(os.environ)
# New variables
new_variables = set(after_source_env) - set(this_environment)
for x in new_variables: