From 26a586cf39831db7afab1ad97cc8556734919ffb Mon Sep 17 00:00:00 2001
From: CrazyMax <crazy-max@users.noreply.github.com>
Date: Tue, 3 May 2022 12:51:31 +0200
Subject: [PATCH 1/2] lint target and workflow job

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>
---
 .github/workflows/validate.yml |  1 +
 Makefile                       | 16 +++++++++-------
 docker-bake.hcl                |  7 ++++++-
 dockerfiles/lint.Dockerfile    | 16 ++++++++++++++++
 4 files changed, 32 insertions(+), 8 deletions(-)
 create mode 100644 dockerfiles/lint.Dockerfile

diff --git a/.github/workflows/validate.yml b/.github/workflows/validate.yml
index a5b3df8f5..9a5b4dec2 100644
--- a/.github/workflows/validate.yml
+++ b/.github/workflows/validate.yml
@@ -18,6 +18,7 @@ jobs:
       fail-fast: false
       matrix:
         target:
+          - lint
           - validate-vendor
     steps:
       -
diff --git a/Makefile b/Makefile
index d30459a2d..2f58f44f7 100644
--- a/Makefile
+++ b/Makefile
@@ -38,7 +38,7 @@ BINARIES=$(addprefix bin/,$(COMMANDS))
 TESTFLAGS ?= -v $(TESTFLAGS_RACE)
 TESTFLAGS_PARALLEL ?= 8
 
-.PHONY: all build binaries check clean test test-race test-full integration coverage validate-vendor vendor mod-outdated
+.PHONY: all build binaries clean test test-race test-full integration coverage validate lint validate-vendor vendor mod-outdated
 .DEFAULT: all
 
 all: binaries
@@ -48,10 +48,6 @@ version/version.go:
 	@echo "$(WHALE) $@"
 	./version/version.sh > $@
 
-check: ## run all linters (TODO: enable "unused", "varcheck", "ineffassign", "unconvert", "staticheck", "goimports", "structcheck")
-	@echo "$(WHALE) $@"
-	@golangci-lint run
-
 test: ## run tests, except integration test with test.short
 	@echo "$(WHALE) $@"
 	@go test ${GO_TAGS} -test.short ${TESTFLAGS} $(filter-out ${INTEGRATION_PACKAGE},${PACKAGES})
@@ -101,8 +97,14 @@ clean: ## clean up binaries
 	@echo "$(WHALE) $@"
 	@rm -f $(BINARIES)
 
+validate: ## run all validators
+	docker buildx bake $@
+
+lint: ## run all linters
+	docker buildx bake $@
+
 validate-vendor: ## validate vendor
-	docker buildx bake validate-vendor
+	docker buildx bake $@
 
 vendor: ## update vendor
 	$(eval $@_TMP_OUT := $(shell mktemp -d -t buildx-output.XXXXXXXXXX))
@@ -112,4 +114,4 @@ vendor: ## update vendor
 	rm -rf $($@_TMP_OUT)/*
 
 mod-outdated: ## check outdated dependencies
-	docker buildx bake mod-outdated
+	docker buildx bake $@
diff --git a/docker-bake.hcl b/docker-bake.hcl
index a6fb56220..4b776fccc 100644
--- a/docker-bake.hcl
+++ b/docker-bake.hcl
@@ -3,7 +3,12 @@ group "default" {
 }
 
 group "validate" {
-  targets = ["validate-vendor"]
+  targets = ["lint", "validate-vendor"]
+}
+
+target "lint" {
+  dockerfile = "./dockerfiles/lint.Dockerfile"
+  output = ["type=cacheonly"]
 }
 
 target "validate-vendor" {
diff --git a/dockerfiles/lint.Dockerfile b/dockerfiles/lint.Dockerfile
new file mode 100644
index 000000000..e9d8c8f3c
--- /dev/null
+++ b/dockerfiles/lint.Dockerfile
@@ -0,0 +1,16 @@
+# syntax=docker/dockerfile:1
+
+ARG GO_VERSION=1.17
+ARG GOLANGCI_LINT_VERSION=v1.44
+
+FROM golangci/golangci-lint:${GOLANGCI_LINT_VERSION}-alpine AS golangci-lint
+
+FROM golang:${GO_VERSION}-alpine AS base
+RUN apk add --no-cache gcc musl-dev
+WORKDIR /src
+
+FROM base
+RUN --mount=type=bind,target=. \
+  --mount=type=cache,target=/root/.cache \
+  --mount=from=golangci-lint,source=/usr/bin/golangci-lint,target=/usr/bin/golangci-lint \
+  golangci-lint run

From 7548c315f813916116f4f0af58e5da66f3f4d66e Mon Sep 17 00:00:00 2001
From: CrazyMax <crazy-max@users.noreply.github.com>
Date: Sun, 1 May 2022 05:34:19 +0200
Subject: [PATCH 2/2] cleanup old check behavior

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>
---
 .github/workflows/ci.yml       |  2 --
 script/setup/install-dev-tools | 15 ---------------
 2 files changed, 17 deletions(-)
 delete mode 100755 script/setup/install-dev-tools

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 50657e460..d8c977535 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -46,9 +46,7 @@ jobs:
       working-directory: ./src/github.com/distribution/distribution
       run: |
         DCO_VERBOSITY=-q script/validate/dco
-        GO111MODULE=on script/setup/install-dev-tools
         go build -i .
-        make check
         make build
         make binaries
         if [ "$GOOS" = "linux" ]; then make coverage ; fi
diff --git a/script/setup/install-dev-tools b/script/setup/install-dev-tools
deleted file mode 100755
index f848981a0..000000000
--- a/script/setup/install-dev-tools
+++ /dev/null
@@ -1,15 +0,0 @@
-#!/usr/bin/env bash
-
-GOLANGCI_LINT_VERSION="v1.44.0"
-
-#
-# Install developer tools to $GOBIN (or $GOPATH/bin if unset)
-#
-set -eu -o pipefail
-
-# Enable Go modules
-export GO111MODULE=on
-
-# prevent updating go.mod of the project
-cd /tmp
-go get "github.com/golangci/golangci-lint/cmd/golangci-lint@${GOLANGCI_LINT_VERSION}"