Refactor kafka to pure Go (franz-go), fix DBC stubs, update Dockerfile

pkg/can-go/tools/commitlint/.commitlintrc.js

@@ -0,0 +1,8 @@
+module.exports = {
+  extends: ['@commitlint/config-conventional'],
+  rules: {
+    // Treat as warning until Dependabot supports commitlint.
+    // https://github.com/dependabot/dependabot-core/issues/2445
+    "body-max-line-length": [1, "always", 100],
+  }
+};

pkg/can-go/tools/commitlint/package.json

@@ -0,0 +1,6 @@
+{
+  "devDependencies": {
+    "@commitlint/cli": "^11.0.0",
+    "@commitlint/config-conventional": "^11.0.0"
+  }
+}

pkg/can-go/tools/commitlint/rules.mk

@@ -0,0 +1,16 @@
+commitlint_cwd := $(abspath $(dir $(lastword $(MAKEFILE_LIST))))
+commitlint := $(commitlint_cwd)/node_modules/.bin/commitlint
+
+$(commitlint): $(commitlint_cwd)/package.json
+	$(info [commitlint] installing package...)
+	@cd $(commitlint_cwd) && npm install --no-save --no-audit &> /dev/null
+	@touch $@
+
+.PHONY: commitlint
+commitlint: $(commitlint_cwd)/.commitlintrc.js $(commitlint)
+	$(info [$@] linting commit messages...)
+	@git fetch --tags
+	@NODE_PATH=$(commitlint_cwd)/node_modules $(commitlint) \
+		--config $< \
+		--from origin/master \
+		--to HEAD

pkg/can-go/tools/git-verify-nodiff/git-verify-nodiff.bash

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+set -euo pipefail
+
+if [[ -n $(git status --porcelain) ]]; then
+  echo "Staging area is dirty, please add all files created by the build to .gitignore"
+  git diff --patch
+  exit 1
+fi

pkg/can-go/tools/git-verify-nodiff/rules.mk

@@ -0,0 +1,7 @@
+git_verify_nodiff_cwd := $(abspath $(dir $(lastword $(MAKEFILE_LIST))))
+git_verify_nodiff := $(git_verify_nodiff_cwd)/git-verify-nodiff.bash
+
+.PHONY: git-verify-nodiff
+git-verify-nodiff:
+	@echo verifying that git has no diff...
+	@$(git_verify_nodiff)

pkg/can-go/tools/golangci-lint/rules.mk

@@ -0,0 +1,24 @@
+golangci_lint_cwd := $(abspath $(dir $(lastword $(MAKEFILE_LIST))))
+golangci_lint_version := 1.37.0
+golangci_lint := $(golangci_lint_cwd)/$(golangci_lint_version)/golangci-lint
+
+ifeq ($(shell uname),Linux)
+golangci_lint_archive_url := https://github.com/golangci/golangci-lint/releases/download/v${golangci_lint_version}/golangci-lint-${golangci_lint_version}-linux-amd64.tar.gz
+else ifeq ($(shell uname),Darwin)
+golangci_lint_archive_url := https://github.com/golangci/golangci-lint/releases/download/v${golangci_lint_version}/golangci-lint-${golangci_lint_version}-darwin-amd64.tar.gz
+else
+$(error unsupported OS: $(shell uname))
+endif
+
+$(golangci_lint):
+	$(info building golangci-lint...)
+	@mkdir -p $(dir $@)
+	@curl -sSL $(golangci_lint_archive_url) -o - | \
+		tar -xz --directory $(dir $@) --strip-components 1
+	@chmod +x $@
+	@touch $@
+
+.PHONY: go-lint
+go-lint: $(golangci_lint)
+	$(info linting Go code with golangci-lint...)
+	@$(golangci_lint) run

pkg/can-go/tools/goreview/rules.mk

@@ -0,0 +1,18 @@
+goreview_cwd := $(abspath $(dir $(lastword $(MAKEFILE_LIST))))
+goreview_version := 0.15.0
+goreview := $(goreview_cwd)/$(goreview_version)/goreview
+
+goreview_archive_url := https://github.com/einride/goreview/releases/download/v$(goreview_version)/goreview_$(goreview_version)_$(shell uname)_$(shell uname -m).tar.gz
+
+$(goreview): $(goreview_cwd)/rules.mk
+	$(info [goreview] fetching $(goreview_version) binary...)
+	@mkdir -p $(dir $@)
+	@curl -sSL $(goreview_archive_url) -o - | tar -xz --directory $(dir $@)
+	@chmod +x $@
+	@touch $@
+
+# go-review: review Go code for Einride-specific conventions
+.PHONY: go-review
+go-review: $(goreview)
+	$(info [$@] reviewing Go code for Einride-specific conventions...)
+	@$(goreview) -c 1 ./...

pkg/can-go/tools/semantic-release/.releaserc.yaml

@@ -0,0 +1,19 @@
+plugins:
+  - - "@semantic-release/commit-analyzer"
+    - preset: "conventionalcommits"
+      releaseRules:
+        # Given Go v2+ conventions we disable major releases on
+        # breaking changes and leave it up to the developer
+        # to make major releases
+        - breaking: true
+          release: "minor"
+  - "@semantic-release/release-notes-generator"
+  - "@semantic-release/github"
+
+branches: ["master"]
+# github plugin is the only one running this step and we're not interested
+# in its updates to PR and issues
+success: false
+# github plugin is the only one running this step and we're not interested
+# the issues it creates due to failed releases
+fail: false

pkg/can-go/tools/semantic-release/package.json

@@ -0,0 +1,8 @@
+{
+  "devDependencies": {
+    "semantic-release": "^17.3.0",
+    "@semantic-release/github": "^7.2.0",
+    "@semantic-release/release-notes-generator": "^9.0.1",
+    "conventional-changelog-conventionalcommits": "^4.5.0"
+  }
+}

pkg/can-go/tools/semantic-release/rules.mk

@@ -0,0 +1,12 @@
+semantic_release_cwd := $(abspath $(dir $(lastword $(MAKEFILE_LIST))))
+semantic_release := $(semantic_release_cwd)/node_modules/.bin/semantic-release
+
+$(semantic_release): $(semantic_release_cwd)/package.json
+	$(info [semantic-release] installing packages...)
+	@cd $(semantic_release_cwd) && npm install --no-save --no-audit --ignore-scripts &> /dev/null
+	@touch $@
+
+.PHONY: semantic-release
+semantic-release: $(semantic_release_cwd)/.releaserc.yaml $(semantic_release)
+	$(info [$@] creating release...)
+	@cd $(semantic_release_cwd) && $(semantic_release)

pkg/can-go/tools/stringer/go.mod

@@ -0,0 +1,5 @@
+module tools/stringer
+
+go 1.13
+
+require golang.org/x/tools v0.0.0-20200609164405-eb789aa7ce50

pkg/can-go/tools/stringer/go.sum

@@ -0,0 +1,20 @@
+github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
+golang.org/x/mod v0.2.0 h1:KU7oHjnv3XNWfa5COkzUifxZmxp1TyI7ImMXqFxLwvQ=
+golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
+golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
+golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
+golang.org/x/net v0.0.0-20200226121028-0de0cce0169b/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
+golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.0.0-20200609164405-eb789aa7ce50 h1:59syOWj4+Fl+op4LL8fX1kO7HmbdEWfxlw4tcGvH+y0=
+golang.org/x/tools v0.0.0-20200609164405-eb789aa7ce50/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
+golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=

pkg/can-go/tools/stringer/rules.mk

@@ -0,0 +1,8 @@
+stringer_cwd := $(abspath $(dir $(lastword $(MAKEFILE_LIST))))
+stringer := $(stringer_cwd)/bin/stringer
+PATH := $(PATH):$(dir $(stringer))
+
+$(stringer): $(stringer_cwd)/go.mod
+	@echo building stringer...
+	@cd $(stringer_cwd) && go build -o $@ golang.org/x/tools/cmd/stringer
+	@cd $(stringer_cwd) && go mod tidy

pkg/can-go/tools/stringer/tool.go

@@ -0,0 +1,5 @@
+//+build tool
+
+package tool
+
+import _ "golang.org/x/tools/cmd/stringer"