Just to take inventory of which old problems still linger and which are now moot, I've gone out of my way to have this stand alone. All of gn_android_flavor's logic is self contained, without any dependency on the platform_tools scripts.
The tricky bits turn out to be, copying directories containing symlinks---or really any copying involving more than one file---and getting the exit code back from adb shell. Luckily the ADB I've got on my desktop and my Nexus 5x seems to handle this all without the awkward workarounds you see here, so there's hope that One Day Soon the weird parts (basically, anything with inline python) can go away. Once we've got these bots landed green, I'll go see whether the fixes are due to ADB updates, Android updates, or perhaps something else like hardware.
The parts marked TEMPORARY are a nod to the fact that the devices are used by gn_android_flavor and android_flavor both today. It's mostly about not stepping on each other's toes or leaving anything laying around that might confuse each other. The marked parts can go away when bots are either gn_ or non-gn_ but not both.
I have omitted a few steps that may be important, but which are easy independent follow-ups:
- running as root
- locking clocks
- waiting on battery levels
- fancier wait-for-ready than adb wait-for-usb-device
It'd be nice to, e.g., reaffirm that locking clocks helps perf stability, and that we're locking to the best policy. I've tried to keep this CL as trim as possible, leaving any of these vaguely optional steps for later.
As of PS 41 or so, it looks like the trybots are all behaving as expected.
We should expect no new images in Gold. Can we see trybots in Perf yet?
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2320153002
CQ_INCLUDE_TRYBOTS=master.client.skia.android:Perf-Android-Clang-AndroidOne-CPU-MT6582-arm-Debug-GN_Android-Trybot,Perf-Android-Clang-AndroidOne-CPU-MT6582-arm-Release-GN_Android-Trybot,Perf-Android-Clang-AndroidOne-GPU-Mali400MP2-arm-Debug-GN_Android-Trybot,Perf-Android-Clang-AndroidOne-GPU-Mali400MP2-arm-Release-GN_Android-Trybot,Test-Android-Clang-AndroidOne-CPU-MT6582-arm-Debug-GN_Android-Trybot,Test-Android-Clang-AndroidOne-CPU-MT6582-arm-Release-GN_Android-Trybot,Test-Android-Clang-AndroidOne-GPU-Mali400MP2-arm-Debug-GN_Android-Trybot,Test-Android-Clang-AndroidOne-GPU-Mali400MP2-arm-Release-GN_Android-Trybot
Review-Url: https://codereview.chromium.org/2320153002
Attempt to take over all *SAN builds.
MSAN has a lot of coordination required between gn/BUILD.gn and gn_flavor.py.
I'd like to follow up to move more of this into gn/BUILD.gn, to make it easier
to use locally.
The compile steps should be much faster now. We no longer build CMake
and Clang for every run, instead using the clang_linux CIPD package. This
removes the need for all the third_party/externals/llvm/... dependencies.
Similarly, since we're using the clang_linux package, we no longer depend
on Chrome's Clang, and thus no longer need to sync chromium on these bots.
Instead of packaging up MSAN libraries and llvm-symbolizer in the compile
output, I have the test / perf bots also depend on the clang_linux package.
These do not vary from build to build.
No more need for the xsan.blacklist -include hack: Clang, GN, and Ninja
all track changes to xsan.blacklist without our help.
This has the incidental effect of upgrading the compiler used by *SAN
bots from Clang 3.8 to Clang 3.9.
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2289343002
Review-Url: https://codereview.chromium.org/2289343002
Also:
* Pass through a new property 'patch_storage' to DM/Nanobench/Coverage. This will be used by the different frameworks to figure out if it is Rietveld or Gerrit issue.
* Calculate issue and patchset for Gerrit patches similar to Rietveld.
BUG=skia:5627
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2263323002
Review-Url: https://codereview.chromium.org/2263323002
Break Skia recipe module into:
- skia_vars: defines and stores variables (eg. paths)
- skia_step: utilities for running Skia steps
- skia_flavor: flavor-specific stuff
- skia: top-level setup, checkout, test/perf steps, etc etc
This establishes a saner dependency structure for the recipes; skia_vars
is at the bottom level, skia_step depends on it, skia_flavor depends on
both of them, skia depends on all of the above, and the recipes
themselves may depend on any or all of them.
Next steps:
- Merge buildbot_spec into skia_vars
- Move test_steps and perf_steps from skia recipe_module into
swarm_test and swarm_perf recipes
- Cleaner checkout_steps process
BUG=skia:5578
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2198173002
Review-Url: https://codereview.chromium.org/2198173002
