generic-poky/bitbake/lib
Richard Purdie d7571c0390 bitbake: data_smart: Add _remove operator
There are long standing complaints about the fact its very difficult
to remove a portion of a variable. The immediate request is for a -=
and =- operator. The trouble is that += and =+ are "immediate"
operators and are applied straight away. Most people would expect
-= and =- to be deferred to have the effect most people desire and
therefore implementing -= and =- would just make the situation more
confusing.

This deferred operation is much more similar to the override syntax
which happens at data store finalisation. The _remove operator is
therefore in keeping with the _append and _prepend operations.

This code is loosely based on a patch from Peter Seebach although it
has been rewritten to be simpler, more efficient and avoid some
potential bugs.

The code currently only works on space delimited variables, which
are by far the most commom type. If bitbake is ehanced to support
types natively in future, we can adjust this code to adapt to that.

(Bitbake rev: 9c91948e10df278dad4832487fa56888cd58d187)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2013-08-26 11:29:46 +01:00
..
bb bitbake: data_smart: Add _remove operator 2013-08-26 11:29:46 +01:00
ply Add pysh, ply, and codegen to lib/ to prepare for future work 2010-08-03 14:06:07 +01:00
prserv bitbake: server/xmlrpc/prserv: Add sane timeout to default xmlrpc server 2013-08-26 11:29:46 +01:00
codegen.py Add pysh, ply, and codegen to lib/ to prepare for future work 2010-08-03 14:06:07 +01:00
progressbar.py Experimental usage of the 'progressbar' module 2011-01-04 14:46:42 +00:00