Bug 1492159 - Build Linux and Mac grcov in a toolchain task. r=ahal

--HG--
extra : rebase_source : 922e19f9d2a77fd3dec33c84f3c675ed37ece6b7

taskcluster/ci/toolchain/linux.yml

@@ -665,6 +665,26 @@ linux64-rust-size:
     toolchains:
         - linux64-rust-1.28
 
+linux64-grcov:
+    description: "grcov toolchain build"
+    treeherder:
+        kind: build
+        platform: toolchains/opt
+        symbol: TL(grcov)
+        tier: 1
+    worker-type: aws-provisioner-v1/gecko-{level}-b-linux
+    worker:
+        max-run-time: 1800
+    run:
+        using: toolchain-script
+        script: build-grcov.sh
+        resources:
+            - 'taskcluster/scripts/misc/tooltool-download.sh'
+        toolchain-artifact: public/build/grcov.tar.xz
+    toolchains:
+        - linux64-rust-1.28
+        - linux64-clang-6
+
 linux64-gn:
     description: "gn toolchain build"
     treeherder:

taskcluster/ci/toolchain/macosx.yml

@@ -132,3 +132,23 @@ macosx64-node:
         script: repack-node.sh
         arguments: ['macosx64']
         toolchain-artifact: public/build/node.tar.xz
+
+macosx64-grcov:
+    description: "grcov toolchain build"
+    treeherder:
+        kind: build
+        platform: toolchains/opt
+        symbol: TM(grcov)
+        tier: 1
+    worker-type: aws-provisioner-v1/gecko-{level}-b-linux
+    worker:
+        max-run-time: 1800
+    run:
+        using: toolchain-script
+        script: build-grcov.sh
+        resources:
+            - 'taskcluster/scripts/misc/tooltool-download.sh'
+        toolchain-artifact: public/build/grcov.tar.xz
+    toolchains:
+        - linux64-rust-1.28
+        - linux64-clang-6

taskcluster/scripts/misc/build-grcov.sh

@@ -0,0 +1,46 @@
+#!/bin/bash
+set -x -e -v
+
+# This script is for building grcov
+
+OWNER=marco-c
+PROJECT=grcov
+PROJECT_REVISION=376ab00c79682a9138f54d7756e503babf140af3
+
+WORKSPACE=$HOME/workspace
+UPLOAD_DIR=$HOME/artifacts
+COMPRESS_EXT=xz
+
+PATH="$WORKSPACE/build/src/clang/bin/:$PATH"
+
+cd $WORKSPACE/build/src
+
+. taskcluster/scripts/misc/tooltool-download.sh
+
+# cargo gets mad if the parent directory has a Cargo.toml file in it
+if [ -e Cargo.toml ]; then
+  mv Cargo.toml Cargo.toml.back
+fi
+
+PATH="$PWD/rustc/bin:$PATH"
+
+git clone -n https://github.com/${OWNER}/${PROJECT} ${PROJECT}
+
+pushd $PROJECT
+
+git checkout $PROJECT_REVISION
+
+cargo build --verbose --release
+
+mkdir $PROJECT
+cp target/release/${PROJECT}* ${PROJECT}/
+pushd $PROJECT
+tar -acf ../${PROJECT}.tar.$COMPRESS_EXT *
+popd
+mkdir -p $UPLOAD_DIR
+cp ${PROJECT}.tar.$COMPRESS_EXT $UPLOAD_DIR
+
+popd
+if [ -e Cargo.toml.back ]; then
+  mv Cargo.toml.back Cargo.toml
+fi