diff options
Diffstat (limited to 'pym/portage/package/ebuild/_config/env_var_validation.py')
| -rw-r--r-- | pym/portage/package/ebuild/_config/env_var_validation.py | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/pym/portage/package/ebuild/_config/env_var_validation.py b/pym/portage/package/ebuild/_config/env_var_validation.py new file mode 100644 index 000000000..d3db545cb --- /dev/null +++ b/pym/portage/package/ebuild/_config/env_var_validation.py @@ -0,0 +1,23 @@ +# Copyright 2010 Gentoo Foundation +# Distributed under the terms of the GNU General Public License v2 + +from portage import os +from portage.process import find_binary +from portage.util import shlex_split + +def validate_cmd_var(v): + """ + Validate an evironment variable value to see if it + contains an executable command as the first token. + returns (valid, token_list) where 'valid' is boolean and 'token_list' + is the (possibly empty) list of tokens split by shlex. + """ + invalid = False + v_split = shlex_split(v) + if not v_split: + invalid = True + elif os.path.isabs(v_split[0]): + invalid = not os.access(v_split[0], os.EX_OK) + elif find_binary(v_split[0]) is None: + invalid = True + return (not invalid, v_split) |