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author | Robert Bradford <rob@openedhand.com> | 2008-10-17 09:46:35 +0000 |
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committer | Robert Bradford <rob@openedhand.com> | 2008-10-17 09:46:35 +0000 |
commit | 696d4f01d235b7309fd1b88bd12949927f19b5d6 (patch) | |
tree | 90c0a158e4c0f41ce8ef68989218df7a73f6d282 /bitbake/lib/bb/utils.py | |
parent | 9294b951744b5fc64dea7f10760bee0b1d8cd6f0 (diff) | |
download | ast2050-yocto-poky-696d4f01d235b7309fd1b88bd12949927f19b5d6.zip ast2050-yocto-poky-696d4f01d235b7309fd1b88bd12949927f19b5d6.tar.gz |
bitbake: Refactor the environment variable handling
Refactor the environment variable handling so that it more closes matches the
changes that have been made in bitbake-dev.
git-svn-id: https://svn.o-hand.com/repos/poky/trunk@5527 311d38ba-8fff-0310-9ca6-ca027cbcb966
Diffstat (limited to 'bitbake/lib/bb/utils.py')
-rw-r--r-- | bitbake/lib/bb/utils.py | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/bitbake/lib/bb/utils.py b/bitbake/lib/bb/utils.py index 18fc9f7..0f402f6 100644 --- a/bitbake/lib/bb/utils.py +++ b/bitbake/lib/bb/utils.py @@ -354,6 +354,28 @@ def filter_environment(good_vars): return removed_vars +def clean_environment(): + """ + Clean up any spurious environment variables. This will remove any + variables the user hasn't chose to preserve. + """ + if 'BB_PRESERVE_ENV' not in os.environ: + if 'BB_ENV_WHITELIST' in os.environ: + good_vars = os.environ['BB_ENV_WHITELIST'].split() + else: + good_vars = preserved_envvars_list() + if 'BB_ENV_EXTRAWHITE' in os.environ: + good_vars.extend(os.environ['BB_ENV_EXTRAWHITE'].split()) + filter_environment(good_vars) + +def empty_environment(): + """ + Remove all variables from the environment. + """ + for s in os.environ.keys(): + os.unsetenv(s) + del os.environ[s] + def prunedir(topdir): # Delete everything reachable from the directory named in 'topdir'. # CAUTION: This is dangerous! |