bitbake: main: add 2 environment variables

Bitbake uses set of environment variables to set command line
options, e.g. seeting BBTOKEN variable has the same effect
as using --token command line option.

Added new environment variables BBPRECONF and BBPOSTCONF that
are equivalents of --read and --postread command line options.
They can be used by high level scripts to append or prepend
configuration files to conf/local.conf

[YOCTO #9235]

Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/lib/bb/main.py b/lib/bb/main.py
index e30217369635d66637f76d630dd503a1f084ecfa..08ecddaabdccb6502ff46921a66638818912ff9a 100755 (executable)
--- a/lib/bb/main.py
+++ b/lib/bb/main.py
@@ -250,6 +250,12 @@ class BitBakeConfigParameters(cookerdata.ConfigParameters):
         if "BBEVENTLOG" in os.environ:
             options.writeeventlog = os.environ["BBEVENTLOG"]
 
+        if "BBPRECONF" in os.environ:
+            option.prefile.append(os.environ["BBPRECONF"])
+
+        if "BBPOSTCONF" in os.environ:
+            option.postfile.append(os.environ["BBPOSTCONF"])
+
         # fill in proper log name if not supplied
         if options.writeeventlog is not None and len(options.writeeventlog) == 0:
             import datetime