hack: add linter

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>

cmd/binfmt/config.go

@@ -14,32 +14,32 @@ type config struct {
 }
 
 var configs = map[string]config{
-	"amd64": config{
+	"amd64": {
 		binary: "qemu-x86_64",
 		magic:  `\x7fELF\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x3e\x00`,
 		mask:   `\xff\xff\xff\xff\xff\xfe\xfe\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff`,
 	},
-	"arm64": config{
+	"arm64": {
 		binary: "qemu-aarch64",
 		magic:  `\x7fELF\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\xb7\x00`,
 		mask:   `\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff`,
 	},
-	"arm": config{
+	"arm": {
 		binary: "qemu-arm",
 		magic:  `\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x28\x00`,
 		mask:   `\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff`,
 	},
-	"s390x": config{
+	"s390x": {
 		binary: "qemu-s390x",
 		magic:  `\x7fELF\x02\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x16`,
 		mask:   `\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff`,
 	},
-	"ppc64le": config{
+	"ppc64le": {
 		binary: "qemu-ppc64le",
 		magic:  `\x7fELF\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x15\x00`,
 		mask:   `\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\x00`,
 	},
-	"riscv64": config{
+	"riscv64": {
 		binary: "qemu-riscv64",
 		magic:  `\x7fELF\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\xf3\x00`,
 		mask:   `\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff`,

go.mod

@@ -1,4 +1,4 @@
-module github.com/tonistiigi/binfmt/binfmt
+module github.com/tonistiigi/binfmt
 
 go 1.14
 

gometalinter.json

@@ -0,0 +1,13 @@
+{
+  "Vendor": true,
+  "Deadline": "8m",
+  "Exclude": [".*.pb.go"],
+  "DisableAll": true,
+  "Enable": [
+    "gofmt",
+    "goimports",
+    "ineffassign",
+    "vet",
+    "deadcode"
+  ]
+}

hack/dockerfiles/lint.Dockerfile

@@ -0,0 +1,10 @@
+# syntax=docker/dockerfile:1.1-experimental
+
+FROM golang:1.14-alpine
+RUN  apk add --no-cache git
+RUN  go get -u gopkg.in/alecthomas/gometalinter.v1 \
+  && mv /go/bin/gometalinter.v1 /go/bin/gometalinter \
+  && gometalinter --install
+WORKDIR /src
+RUN --mount=target=. \
+	gometalinter --config=gometalinter.json ./...

hack/lint

@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+
+set -eu -o pipefail -x
+
+: ${CONTINUOUS_INTEGRATION=}
+
+progressFlag=""
+if [ "$CONTINUOUS_INTEGRATION" == "true" ]; then progressFlag="--progress=plain"; fi
+
+docker buildx build $progressFlag -f ./hack/dockerfiles/lint.Dockerfile .