Added .drone.yml for releasing and fixes in Makefile + linter changes

.drone.yml

@@ -0,0 +1,95 @@
+---
+kind: pipeline
+type: docker
+name: default
+
+platform:
+  os: linux
+  arch: amd64
+
+workspace:
+  path: /drone/src
+
+steps:
+- name: prerequisites
+  image: golang
+  commands:
+  - mkdir -p release
+  - go install honnef.co/go/tools/cmd/staticcheck@latest
+  - go install github.com/fzipp/gocyclo/cmd/gocyclo@latest
+  volumes:
+  - name: cache
+    path: /go
+
+- name: test
+  image: golang
+  commands:
+  - go test -v -race ./...
+  - go vet ./...
+  - staticcheck ./...
+  - gocyclo -over 19 $(find . -iname '*.go' -type f | grep -v /vendor/)
+  - golint -set_exit_status ./...
+  volumes:
+  - name: cache
+    path: /go
+
+- name: build-darwin
+  image: golang
+  commands:
+  - mkdir -p release/darwin
+  - GOOS=darwin GOARCH=amd64 go build -ldflags "-s -w -X main.version=${DRONE_TAG:-latest}" -o release/darwin/dumb-http cmd/dumb-http/main.go
+  - tar -czf release/dumb-http-${DRONE_TAG:-latest}-darwin-amd64.tar.gz README.md -C release/darwin/ dumb-http
+  - GOOS=darwin GOARCH=arm64 go build -ldflags "-s -w -X main.version=${DRONE_TAG:-latest}" -o release/darwin/dumb-http cmd/dumb-http/main.go
+  - tar -czf release/dumb-http-${DRONE_TAG:-latest}-darwin-arm64.tar.gz README.md -C release/darwin/ dumb-http
+
+- name: build-windows
+  image: golang
+  commands:
+  - mkdir -p release/windows
+  - GOOS=windows GOARCH=amd64 go build -ldflags "-s -w -X main.version=${DRONE_TAG:-latest}" -o release/windows/dumb-http cmd/dumb-http/main.go
+  - tar -czf release/dumb-http-${DRONE_TAG:-latest}-windows-amd64.tar.gz README.md -C release/windows/ dumb-http
+
+- name: build-linux
+  image: golang
+  commands:
+  - mkdir -p release/linux
+  - GOOS=linux GOARCH=amd64 go build -ldflags "-s -w -X main.version=${DRONE_TAG:-latest}" -o release/linux/dumb-http cmd/dumb-http/main.go
+  - tar -czf release/dumb-http-${DRONE_TAG:-latest}-linux-amd64.tar.gz README.md -C release/linux/ dumb-http
+  - GOOS=linux GOARCH=arm64 go build -ldflags "-s -w -X main.version=${DRONE_TAG:-latest}" -o release/linux/dumb-http cmd/dumb-http/main.go
+  - tar -czf release/dumb-http-${DRONE_TAG:-latest}-linux-arm64.tar.gz README.md -C release/linux/ dumb-http
+
+- name: dummy-check
+  image: golang
+  commands:
+  - ls -lah release/
+  - ls -lah release/*
+  depends_on:
+  - build-linux
+  - build-darwin
+  - build-windows
+
+- name: gitea-release
+  image: plugins/gitea-release
+  settings:
+    api_key:
+      from_secret: gitea_token
+    base_url: https://git.dcpri.me
+    checksum:
+    - sha256
+    files:
+    - release/*.tar.gz
+    - release/debs/*.deb
+    title: Version ${DRONE_TAG/v/}
+  when:
+    event:
+    - tag
+  depends_on:
+  - build-linux
+  - build-darwin
+  - build-windows
+
+---
+kind: signature
+hmac: 679972f18fba9f3c277e6642a0456d9b94a59dbd0f5ae1755325ab093045c713
+
+...

Makefile

@@ -8,9 +8,8 @@ os = $(word 1, $@)
 
 bootstrap:
 	@mkdir -p release
-	go get golang.org/x/lint                  # Linter
-	go get honnef.co/go/tools/cmd/staticcheck # Badass static analyzer/linter
-	go get github.com/fzipp/gocyclo           # Cyclomatic complexity check
+	go install honnef.co/go/tools/cmd/staticcheck@latest # Badass static analyzer/linter
+	go install github.com/fzipp/gocyclo/cmd/gocyclo@latest           # Cyclomatic complexity check
 
 test:
 	go test -v -race $(PKGS)        # Normal Test

proxy/proxy.go

@@ -6,6 +6,9 @@ import (
 	"net/url"
 )
 
+// Proxy struct contains the mux for handling paths, rp for conditionally
+// doing a reverse proxy to upstream and root as root directory for serving
+// static content.
 type Proxy struct {
 	mux *http.ServeMux
 
@@ -13,6 +16,8 @@ type Proxy struct {
 	root string
 }
 
+// New will return a Proxy struct with a new server mux and
+// set reverse proxy Proxy.rp in case if the upstream is not empty.
 func New(upstream, root string) (*Proxy, error) {
 	if upstream == "" {
 		return &Proxy{
@@ -32,6 +37,8 @@ func New(upstream, root string) (*Proxy, error) {
 	}, nil
 }
 
+// Routes will set routes based on the values of Proxy.rp and
+// by default set / to file server.
 func (p *Proxy) Routes(proxyPath string, stripPrefix bool) {
 	if p.rp == nil {
 		p.mux.Handle("/", http.FileServer(http.Dir(p.root)))