Bug 1499147 - Produce archives of toolchains suitable for use with sccache-dist in automation. r=nalexander

Differential Revision: https://phabricator.services.mozilla.com/D33101

--HG--
extra : moz-landing-system : lando

taskcluster/ci/toolchain/dist-toolchains.yml

@@ -0,0 +1,39 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+---
+job-defaults:
+    description: "sccache-dist toolchain archive build"
+    worker-type: b-linux
+    run-on-projects:
+        - trunk
+        - try
+    run:
+        using: toolchain-script
+        script: build-dist-toolchains.sh
+        resources:
+            - 'taskcluster/scripts/misc/tooltool-download.sh'
+
+clang-dist-toolchain:
+    treeherder:
+        symbol: TL(clang-dist)
+    worker:
+        max-run-time: 1800
+    run:
+        arguments: ['clang']
+        toolchain-artifact: public/build/clang-dist-toolchain.tar.xz
+    toolchains:
+        - linux64-clang-8
+        - linux64-sccache
+
+rustc-dist-toolchain:
+    treeherder:
+        symbol: TL(rustc-dist)
+    worker:
+        max-run-time: 1800
+    run:
+        arguments: ['rustc']
+        toolchain-artifact: public/build/rustc-dist-toolchain.tar.xz
+    toolchains:
+        - linux64-rust-macos-1.35
+        - linux64-sccache

taskcluster/ci/toolchain/kind.yml

@@ -40,3 +40,4 @@ jobs-from:
     - rust.yml
     - rust-size.yml
     - sccache.yml
+    - dist-toolchains.yml

taskcluster/scripts/misc/build-dist-toolchains.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+set -x -e -v
+
+# This script is for packaging toolchains suitable for use by distributed sccache.
+WORKSPACE=$HOME/workspace
+UPLOAD_DIR=$HOME/artifacts
+TL_NAME="$1"
+
+cd $WORKSPACE/build/src
+
+. taskcluster/scripts/misc/tooltool-download.sh
+
+sccache/sccache --package-toolchain $PWD/$TL_NAME/bin/$TL_NAME $HOME/artifacts/$TL_NAME-dist-toolchain.tar.xz