Create a lock file during log rotation so that multiple processes won't
step on each other.
Test: Run `while true; do get_build_var TARGET_PRODUCT; done` in parallel
Test: m blueprint_tools
Change-Id: I7144cd42aca47c694487ddae44713f82665ed81e
This reverts commit b6d161bf16.
Reason for revert: New Build Breakage: aosp-master/sdk_mac @ 4260825
Change-Id: I8bda8c50c5e5c9f84621d11a4c15b168833bcd21
It can find every Android.bp in internal master in
about 2.5 sec the first time and 0.3 sec subsequent times
Bug: 62455338
Test: m -j blueprint_tools # which runs the unit tests
Test: m -j blueprint_tools && \
out/soong/host/linux-x86/bin/finder \
-v
--db /tmp/mydb \
--names Android.mk \
--prune-files .android-out-dir \
--exclude-dirs .git,.repo \
. \
>/tmp/finder-log 2>&1
Change-Id: I5ab2650459a1dae0d5d076faf411ec2d053c743d
Right now this mostly just copies what Make is doing in
build/core/ninja.mk and build/core/soong.mk. The only major feature it
adds is a rotating log file with some verbose logging.
There is one major functional difference -- you cannot override random
Make variables during the Make phase anymore. The environment variable
is set, and if Make uses ?= or the equivalent, it can still use those
variables. We already made this change for Kati, which also loads all of
the same code and actually does the build, so it has been half-removed
for a while.
The only "UI" this implements is what I'll call "Make Emulation" mode --
it's expected that current command lines will continue working, and
we'll explore alternate user interfaces later.
We're still using Make as a wrapper, but all it does is call into this
single Go program, it won't even load the product configuration. Once
this is default, we can start moving individual users over to using this
directly (still in Make emulation mode), skipping the Make wrapper.
Ideas for the future:
* Generating trace files showing time spent in Make/Kati/Soong/Ninja
(also importing ninja traces into the same stream). I had this working
in a previous version of this patch, but removed it to keep the size
down and focus on the current features.
* More intelligent SIGALRM handling, once we fully remove the Make
wrapper (which hides the SIGALRM)
* Reading the experimental binary output stream from Ninja, so that we
can always save the verbose log even if we're not printing it out to
the console
Test: USE_SOONG_UI=true m -j blueprint_tools
Change-Id: I884327b9a8ae24499eb6c56f6e1ad26df1cfa4e4
