From 696d4f01d235b7309fd1b88bd12949927f19b5d6 Mon Sep 17 00:00:00 2001 From: Robert Bradford Date: Fri, 17 Oct 2008 09:46:35 +0000 Subject: 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 --- bitbake/lib/bb/utils.py | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'bitbake/lib/bb/utils.py') diff --git a/bitbake/lib/bb/utils.py b/bitbake/lib/bb/utils.py index 18fc9f7252..0f402f6279 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! -- cgit v1.2.3-54-g00ecf