ci/build: Install required protoc plugins (#3801)

* ci/build: Install required protoc plugins

* ci/build: Add go bins to path

* Make sure to install plugins for host arch

* Pin protoc versions to be compatible with mockgen 1.6.0

* [TEMP] Create script to test build multiple times

* Build 1/10

* Build 2/10

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* Revert "[TEMP] Create script to test build multiple times"

This reverts commit 01bd618.

Author: victorges

.github/workflows/build.yaml

@@ -83,6 +83,7 @@ jobs:
           echo "GO_BUILD_DIR=lp-builds/" >> $GITHUB_ENV
           echo "PKG_CONFIG_PATH=/github/home/compiled/lib/pkgconfig" >> $GITHUB_ENV
           echo "LP_BUILD_DIR=livepeer-${{ matrix.target.GOOS }}-${{ matrix.target.GOARCH }}" >> $GITHUB_ENV
+          echo "$(go env GOPATH)/bin" >> $GITHUB_PATH
           mkdir -p lp-builds/ releases/
 
       - name: Set GPU build environment
@@ -114,6 +115,11 @@ jobs:
         if: steps.go.outputs.cache-hit != 'true'
         run: go mod download
 
+      - name: Install protoc plugins
+        run: |
+          GOARCH= GOOS= go install google.golang.org/protobuf/cmd/[email protected]
+          GOARCH= GOOS= go install google.golang.org/grpc/cmd/[email protected]
+
       - name: Install ffmpeg
         run: ./install_ffmpeg.sh
 
@@ -184,6 +190,7 @@ jobs:
           echo "GOOS=${{ matrix.target.GOOS }}" >> $GITHUB_ENV
           echo "GO_BUILD_DIR=lp-builds/" >> $GITHUB_ENV
           echo "LP_BUILD_DIR=livepeer-${{ matrix.target.GOOS }}-${{ matrix.target.GOARCH }}" >> $GITHUB_ENV
+          echo "$(go env GOPATH)/bin" >> $GITHUB_PATH
           mkdir -p lp-builds/ releases/
 
       - name: Cache ffmpeg
@@ -204,6 +211,11 @@ jobs:
         # if: steps.go.outputs.cache-hit != 'true'
         run: go mod download
 
+      - name: Install protoc plugins
+        run: |
+          GOARCH= GOOS= go install google.golang.org/protobuf/cmd/[email protected]
+          GOARCH= GOOS= go install google.golang.org/grpc/cmd/[email protected]
+
       - name: Install ffmpeg
         if: steps.cache-ffmpeg.outputs.cache-hit != 'true'
         run: ./install_ffmpeg.sh