Install pre-built golangci-lint release (#36)

Author: joshdk

.golangci.yml

@@ -2,8 +2,11 @@ linters:
   enable-all: true
   disable:
   - lll
+  - wsl
+  - gomnd
 
 issues:
+  exclude-use-default: true
   exclude:
   # Triggered by table tests calling t.Run. See
   # https://github.com/kyoh86/scopelint/issues/4 for more information.

Makefile

@@ -23,7 +23,7 @@ $(go-junit-report):
 # Install binary for golangci-lint.
 golangci-lint := $(GOBIN)/golangci-lint
 $(golangci-lint):
-	cd /tmp && go get -u github.com/golangci/golangci-lint/cmd/golangci-lint@v1.18.0
+	@./scripts/install-golangci-lint $(golangci-lint)
 
 # Install binary for goimports.
 goimports := $(GOBIN)/goimports

scripts/install-golangci-lint

@@ -0,0 +1,16 @@
+#!/bin/sh
+set -eu
+
+platform="$(uname -s)"
+if [ "$platform" = Linux ]; then
+    prefix=golangci-lint-1.23.8-linux-amd64
+elif [ "$platform" = Darwin ]; then
+    prefix=golangci-lint-1.23.8-darwin-amd64
+fi
+
+cd "$(mktemp -d)" || exit 1
+wget -q "https://github.com/golangci/golangci-lint/releases/download/v1.23.8/${prefix}.tar.gz"
+tar -xf "${prefix}.tar.gz"
+mkdir -p "$(dirname "$1")"
+install "${prefix}/golangci-lint" "$1"
+rm -rf "$PWD"