Update Chrome section to include Skia roll/sheriff/bug info
BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2351593003 NOTRY=true DOCS_PREVIEW= https://skia.org/?cl=2351593003 Review-Url: https://codereview.chromium.org/2351593003
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Skia in Chrome
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==============
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Changes to the Skia repository will be rolled into Chromium (and Blink) by the
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AutoRoll bot several times per day.
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If you have a Skia change that needs to be tested in Chrome or Blink, or which
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requires associated changes in those repositories, this is the place for you.
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requires associated changes in those repositories, see the guides in this
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section for tips on execution.
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For problems in Chromium related to Skia rolls:
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* Go to https://autoroll.skia.org. Login with google.com account and click
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the STOP button to pause new rolls.
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* Revert the offending DEPS roll.
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* If an obvious owner cannot be found in the list of CLs, assign to the Skia
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Sheriff, listed at the top of https://status.skia.org and as a reviewer
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on the roll CL.
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* If the Sheriff cannot be assigned, cc them and assign the issue to hcm@.
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For more tips on bug triage and labeling, see the [Issue Tracker page](../../user/issue-tracker/).
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Downloading SKPs
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================
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### Contents ###
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* [Overview](#overview)
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* [How to download SKPs](#download_skps)
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+ [Buildbot SKPs (for Googlers)](#buildbot_skps_googler)
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+ [Buildbot SKPs (for trusted partners)](#buildbot_skps_partners)
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+ [Cluster Telemetry SKPs (for Googlers)](#ct_skps_googler)
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<a name="overview"></a>
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Overview
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--------
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An SKP is a binary representation of the draw commands Chromium sends to Skia for rasterization.
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Skia uses different types of SKPs in our continuous builds and tests:
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* [Buildbot](https://skia.org/dev/testing/buildbot) SKPs are the small set (89 as of 2/10/16) of SKPs that are used on almost all our bots.
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* [Cluster Telemetry](https://skia.org/dev/testing/ct) SKPs are the much larger set (~900k) that are used by our CT bots (Eg: [CT_BENCH_10k](https://build.chromium.org/p/client.skia/builders/Perf-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-CT_BENCH_10k_SKPs), [CT_DM_10k](https://build.chromium.org/p/client.skia/builders/Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Debug-CT_DM_10k_SKPs), [CT_DM_1m](https://build.chromium.org/p/client.skia.fyi/builders/Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Debug-CT_DM_1m_SKPs)).
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Skia developers find it useful to download these SKPs to run local tests to reproduce problems seen on the buildbots. The below sections detail how to download them.
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<a name="download_skps"></a>
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How to download SKPs
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--------------------
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<a name="buildbot_skps_googler"></a>
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### Buildbot SKPs (for Googlers)
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The following will work only if you have a google.com account.
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All buildbot SKP files created by the RecreateSKPs bot are available via the asset management scripts:
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$ download_from_google_storage -s infra/bots/tools/luci-go/${PLATFORM}/cipd.sha1 --bucket chromium-luci
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$ infra/bots/tools/luci-go/${PLATFORM}/cipd auth-login
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$ infra/bots/assets/skp/download.py -t ${TARGET_DIR}
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Note: If you are on Windows, you will need to specify *cipd.exe.sha1*, not *cipd.sha1*
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<a name="buildbot_skps_partners"></a>
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### Buildbot SKPs (for trusted partners)
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* Request access to the gs://chrome-partner-telemetry bucket by emailing telemetry@chromium.org ([example](https://groups.google.com/a/chromium.org/d/msg/telemetry/kSwcgH7KiYs/zwBwEZaadOIJ)).
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* Once approved you can download Skia's weekly refreshed buildbot SKPs from gs://chrome-partner-telemetry/skps
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<a name="ct_skps_googler"></a>
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### Cluster Telemetry SKPs (for Googlers)
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The following will work only if you have a google.com account.
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* Download the gsutil tool https://developers.google.com/cloud/sdk/#Quick_Start.
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* Authenticate using your google.com credentials “gcloud auth login”
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* Look at the SKP Repository list [here](https://ct.skia.org/lua_script/) for all available SKPs.
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* Run in your terminal:
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$ SKP\_DEST=...<br/>
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$ REPO\_TYPE=... (Either All, 100k, Mobile10k, 10k, Dummy1k)<br/>
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$ CHROMIUM\_BUILD=... (Eg: fad657e-276e633)<br/>
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$ gsutil -m cp gs://cluster-telemetry/swarming/skps/${REPO\_TYPE}/${CHROMIUM\_BUILD}/{1..10}/*.skp ${SKP\_DEST}
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* Substitute the 1 and 10 above with the start and end ranks of the SKPs you want to copy locally.
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* If you are trying to find a particular SKP. Look for it in the CSV [here](https://pantheon.corp.google.com/m/cloudstorage/b/cluster-telemetry/o/csv/top-1m.csv) and then use that rank in the copy command.
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@ -51,7 +51,7 @@ configuration you might be expecting it to run.
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Don't worry about the "skps: Couldn't read skps." messages either, you won't
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have those by default and can do without them. If you wish to test with them
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too, you can [download them separately](https://skia.org/dev/testing/skps).
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too, you can download them separately.
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The next line is an overview of the work DM is about to do.
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~~~
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