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Downloading SKPs
================
### Contents ###
* [Overview](#overview)
* [How to download SKPs](#download_skps)
+ [Buildbot SKPs (for Googlers)](#buildbot_skps_googler)
+ [Buildbot SKPs (for trusted partners)](#buildbot_skps_partners)
+ [Cluster Telemetry SKPs (for Googlers)](#ct_skps_googler)
<a name="overview"></a>
Overview
--------
An SKP is a binary representation of the draw commands Chromium sends to Skia for rasterization.
Skia uses different types of SKPs in our continuous builds and tests:
* [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.
* [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)).
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.
<a name="download_skps"></a>
How to download SKPs
--------------------
<a name="buildbot_skps_googler"></a>
### Buildbot SKPs (for Googlers)
The following will work only if you have a google.com account.
All buildbot SKP files created by the RecreateSKPs bot are available via the asset management scripts:
$ download_from_google_storage -s infra/bots/tools/luci-go/${PLATFORM}/cipd.sha1 --bucket chromium-luci
$ infra/bots/tools/luci-go/${PLATFORM}/cipd auth-login
$ infra/bots/assets/skp/download.py -t ${TARGET_DIR}
<a name="buildbot_skps_partners"></a>
### Buildbot SKPs (for trusted partners)
* 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)).
* Once approved you can download Skia's weekly refreshed buildbot SKPs from gs://chrome-partner-telemetry/skps
<a name="ct_skps_googler"></a>
### Cluster Telemetry SKPs (for Googlers)
The following will work only if you have a google.com account.
* Download the gsutil tool https://developers.google.com/cloud/sdk/#Quick_Start.
* Authenticate using your google.com credentials “gcloud auth login”
* Look at the SKP Repository list [here](https://ct.skia.org/lua_script/) for all available SKPs.
* Run in your terminal:
$ SKP\_DEST=...<br/>
$ REPO\_TYPE=... (Either All, 100k, Mobile10k, 10k, Dummy1k)<br/>
$ CHROMIUM\_BUILD=... (Eg: fad657e-276e633)<br/>
$ gsutil -m cp gs://cluster-telemetry/swarming/skps/${REPO\_TYPE}/${CHROMIUM\_BUILD}/{1..10}/*.skp ${SKP\_DEST}
* Substitute the 1 and 10 above with the start and end ranks of the SKPs you want to copy locally.
* 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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