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setup: move environment computation into a helper function

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Add a helper function to compute the environment used for invoking mercurial,
rather than doing this computation entirely at global scope.  This will make it
easier to do some subsequent refactoring.
This commit is contained in:
Adam Simpkins 2017-06-26 11:31:30 -07:00
parent f8d4797904
commit 5be8308b27
1 changed files with 16 additions and 13 deletions
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29
setup.py
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@ -165,20 +165,23 @@ def runhg(cmd, env):
return ''
return out
version = ''
# Execute hg out of this directory with a custom environment which takes care
# to not use any hgrc files and do no localization.
env = {'HGMODULEPOLICY': 'py',
'HGRCPATH': '',
'LANGUAGE': 'C',
'PATH': ''} # make pypi modules that use os.environ['PATH'] happy
if 'LD_LIBRARY_PATH' in os.environ:
env['LD_LIBRARY_PATH'] = os.environ['LD_LIBRARY_PATH']
if 'SystemRoot' in os.environ:
# SystemRoot is required by Windows to load various DLLs. See:
# https://bugs.python.org/issue13524#msg148850
env['SystemRoot'] = os.environ['SystemRoot']
def gethgenv():
# Execute hg out of this directory with a custom environment which takes
# care to not use any hgrc files and do no localization.
env = {'HGMODULEPOLICY': 'py',
'HGRCPATH': '',
'LANGUAGE': 'C',
'PATH': ''} # make pypi modules that use os.environ['PATH'] happy
if 'LD_LIBRARY_PATH' in os.environ:
env['LD_LIBRARY_PATH'] = os.environ['LD_LIBRARY_PATH']
if 'SystemRoot' in os.environ:
# SystemRoot is required by Windows to load various DLLs. See:
# https://bugs.python.org/issue13524#msg148850
env['SystemRoot'] = os.environ['SystemRoot']
env = gethgenv()
version = ''
if os.path.isdir('.hg'):
cmd = [sys.executable, 'hg', 'log', '-r', '.', '--template', '{tags}\n']