Allow command options to be set from environment variables

Extend the Command base class to allow options to be set from values
in environment variables, if the user has not given the option on the
command line and the environment variable is set.

Derived classes of Command can override the implementation of the method
_GetEnvironmentOptions to configure which of its options may be set from
environment variables.

Change-Id: I7c780bcf9644d6567893d9930984c054bce7351e

1 files changed, 1 insertions, 0 deletions

diff --git a/main.py b/main.py
index 83967f77..9cc2639a 100755
--- a/main.py
+++ b/main.py
@@ -120,6 +120,7 @@ class _Repo(object):
       return 1
 
     copts, cargs = cmd.OptionParser.parse_args(argv)
+    copts = cmd.ReadEnvironmentOptions(copts)
 
     if not gopts.no_pager and not isinstance(cmd, InteractiveCommand):
       config = cmd.manifest.globalConfig