At present buildman defaults to running 'mrproper' on every thread before it starts building commits for each board. This can add a delay of about 5 seconds to the start of the process, since the tools and other invariants must be rebuilt.
In particular, a build without '-b', to build current source, runs much slower without -I, since any existing build is removed, thus losing the possibility of an incremental build.
Partly this behaviour was to avoid strange build-system problems caused by running 'make defconfig' for one board and then one with a different architecture. But these problems were fixed quite a while ago.
The -I option (which disabled mrproper) was introduced four years ago and does not seem to cause any problems with builds.
So make -I the default and deprecate the option. To allow use of 'mrproper', add a new -m flag.
Signed-off-by: Simon Glass sjg@chromium.org ---
Changes in v2: None
tools/buildman/README | 13 ++++++------- tools/buildman/builder.py | 7 +++---- tools/buildman/builderthread.py | 6 +++--- tools/buildman/cmdline.py | 5 ++++- tools/buildman/control.py | 6 +++++- tools/buildman/func_test.py | 28 ++++++++++++++++++++-------- 6 files changed, 41 insertions(+), 24 deletions(-)
Applied to u-boot-dm, thanks!