diff options
Diffstat (limited to 'poky/bitbake/lib/bb/utils.py')
| -rw-r--r-- | poky/bitbake/lib/bb/utils.py | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/poky/bitbake/lib/bb/utils.py b/poky/bitbake/lib/bb/utils.py index 6ba1d2a37..70634910f 100644 --- a/poky/bitbake/lib/bb/utils.py +++ b/poky/bitbake/lib/bb/utils.py @@ -1178,7 +1178,7 @@ def edit_metadata(meta_lines, variables, varfunc, match_overrides=False): variables: a list of variable names to look for. Functions may also be specified, but must be specified with '()' at the end of the name. Note that the function doesn't have - any intrinsic understanding of _append, _prepend, _remove, + any intrinsic understanding of :append, :prepend, :remove, or overrides, so these are considered as part of the name. These values go into a regular expression, so regular expression syntax is allowed. @@ -1681,3 +1681,19 @@ def rename(src, dst): shutil.move(src, dst) else: raise err + +@contextmanager +def environment(**envvars): + """ + Context manager to selectively update the environment with the specified mapping. + """ + backup = dict(os.environ) + try: + os.environ.update(envvars) + yield + finally: + for var in envvars: + if var in backup: + os.environ[var] = backup[var] + else: + del os.environ[var] |