Set minimum golang version to go1.19.6 (#551)

Author: patrick-ogrady

.github/workflows/lint-tests-release.yml

@@ -24,17 +24,13 @@ jobs:
           args: --timeout 3m
 
   unit_test:
-    name: Golang Unit Tests v${{ matrix.go }} (${{ matrix.os }})
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        go: ["1.20"]
-        os: [ubuntu-20.04]
+    name: Golang Unit Tests
+    runs-on: ubuntu-20.04
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-go@v3
         with:
-          go-version: ${{ matrix.go }}
+          go-version: "1.19"
       - run: go mod download
         shell: bash
       - run: ./scripts/build.sh ./build/subnetevm
@@ -55,7 +51,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v3
         with:
-          go-version: "1.20"
+          go-version: "1.19"
       - name: Use Node.js
         uses: actions/setup-node@v3
         with:
@@ -85,7 +81,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v3
         with:
-          go-version: "1.20"
+          go-version: "1.19"
       - name: Set up arm64 cross compiler
         run: |
           sudo apt-get -y update

Dockerfile

@@ -5,7 +5,7 @@
 ARG AVALANCHE_VERSION
 
 # ============= Compilation Stage ================
-FROM golang:1.20.1-buster AS builder
+FROM golang:1.19.6-buster AS builder
 RUN apt-get update && apt-get install -y --no-install-recommends bash=5.0-4 git=1:2.20.1-2+deb10u3 make=4.2.1-1.2 gcc=4:8.3.0-1 musl-dev=1.1.21-2 ca-certificates=20200601~deb10u2 linux-headers-amd64
 
 WORKDIR /build
@@ -15,7 +15,7 @@ WORKDIR /build
 COPY go.mod go.sum avalanchego* ./
 
 # Download avalanche dependencies using go mod
-RUN go mod download && go mod tidy -compat=1.20
+RUN go mod download && go mod tidy -compat=1.19
 
 # Copy the code into the container
 COPY . .

README.md

@@ -80,7 +80,7 @@ To support these changes, there have been a number of changes to the SubnetEVM b
 
 ### Clone Subnet-evm
 
-First install Go 1.20.1 or later. Follow the instructions [here](https://golang.org/doc/install). You can verify by running `go version`.
+First install Go 1.19.6 or later. Follow the instructions [here](https://golang.org/doc/install). You can verify by running `go version`.
 
 Set `$GOPATH` environment variable properly for Go to look for Go Workspaces. Please read [this](https://go.dev/doc/gopath_code) for details. You can verify by running `echo $GOPATH`.
 

accounts/abi/bind/bind_test.go

@@ -2136,7 +2136,7 @@ func golangBindings(t *testing.T, overload bool) {
 	if out, err := replacer.CombinedOutput(); err != nil {
 		t.Fatalf("failed to replace binding test dependency to current source tree: %v\n%s", err, out)
 	}
-	tidier := exec.Command(gocmd, "mod", "tidy", "-compat=1.20")
+	tidier := exec.Command(gocmd, "mod", "tidy", "-compat=1.19")
 	tidier.Dir = pkg
 	if out, err := tidier.CombinedOutput(); err != nil {
 		t.Fatalf("failed to tidy Go module file: %v\n%s", err, out)

cmd/simulator/go.mod

@@ -1,6 +1,6 @@
 module github.com/ava-labs/subnet-evm/cmd/simulator
 
-go 1.20
+go 1.19
 
 require (
 	github.com/ethereum/go-ethereum v1.10.26

go.mod

@@ -1,6 +1,6 @@
 module github.com/ava-labs/subnet-evm
 
-go 1.20
+go 1.19
 
 require (
 	github.com/VictoriaMetrics/fastcache v1.10.0

scripts/build.sh

@@ -4,7 +4,7 @@ set -o errexit
 set -o nounset
 set -o pipefail
 
-go_version_minimum="1.20.1"
+go_version_minimum="1.19.6"
 
 go_version() {
     go version | sed -nE -e 's/[^0-9.]+([0-9.]+).+/\1/p'