initial code (#1)

.github/FUNDING.yml

@@ -0,0 +1 @@
+github: l3uddz

.github/workflows/build.yml

@@ -0,0 +1,157 @@
+name: Build
+
+on:
+  push:
+    branches:
+      - '*'
+    tags:
+      - 'v*'
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      # dependencies
+      - name: goreleaser
+        run: |
+          curl -sfL https://install.goreleaser.com/github.com/goreleaser/goreleaser.sh | sudo sh -s -- -b /usr/local/bin
+
+      - name: qemu
+        uses: docker/setup-qemu-action@v1
+
+      - name: buildx
+        uses: docker/setup-buildx-action@v1
+
+      # checkout
+      - name: checkout
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      # setup go
+      - name: go
+        uses: actions/setup-go@v1
+        with:
+          go-version: 1.16
+
+      - name: go info
+        run: |
+          go version
+          go env
+
+      # cache
+      - name: cache
+        uses: actions/cache@v1
+        with:
+          path: vendor
+          key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
+          restore-keys: |
+            ${{ runner.os }}-go-
+
+      # vendor
+      - name: vendor
+        run: |
+          make vendor
+
+      # git status
+      - name: git status
+        run: git status
+
+      # build
+      - name: build
+        if: startsWith(github.ref, 'refs/tags/') == false
+        run: |
+          make snapshot
+
+      # publish
+      - name: publish
+        if: startsWith(github.ref, 'refs/tags/')
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GITHUB_REF: ${{ github.ref }}
+        run: |
+          make publish
+
+      # artifacts
+      - name: artifact_linux
+        if: ${{!github.event.repository.private}}
+        uses: actions/upload-artifact@v2-preview
+        with:
+          name: build_linux
+          path: dist/*linux*
+
+      - name: artifact_darwin
+        if: ${{!github.event.repository.private}}
+        uses: actions/upload-artifact@v2-preview
+        with:
+          name: build_darwin
+          path: dist/*darwin*
+
+      - name: artifact_windows
+        if: ${{!github.event.repository.private}}
+        uses: actions/upload-artifact@v2-preview
+        with:
+          name: build_windows
+          path: dist/*windows*
+
+      # docker login
+      - name: docker login
+        env:
+          DOCKER_USERNAME: ${{ secrets.DOCKER_USERNAME }}
+          DOCKER_PASSWORD: ${{ secrets.DOCKER_PASSWORD }}
+        run: |
+          echo "${DOCKER_PASSWORD}" | docker login --username "${DOCKER_USERNAME}" --password-stdin
+
+      # docker build (latest & tag)
+      - name: release tag
+        if: startsWith(github.ref, 'refs/tags/') == true
+        uses: little-core-labs/[email protected]
+        id: releasetag
+        with:
+          tagRegex: "v?(.+)"
+
+      - name: docker - build release
+        if: startsWith(github.ref, 'refs/tags/') == true
+        uses: docker/build-push-action@v2
+        with:
+          context: .
+          file: ./docker/Dockerfile
+          platforms: linux/amd64,linux/arm64,linux/arm/v7
+          pull: true
+          push: true
+          tags: |
+            cloudb0x/cvm:${{ steps.releasetag.outputs.tag }}
+            cloudb0x/cvm:latest
+
+      # docker build (branch)
+      - name: branch name
+        if: startsWith(github.ref, 'refs/tags/') == false
+        id: branch-name
+        uses: tj-actions/[email protected]
+
+      - name: docker tag
+        if: startsWith(github.ref, 'refs/tags/') == false
+        uses: frabert/replace-string-action@master
+        id: dockertag
+        with:
+          pattern: '[:\.\/]+'
+          string: "${{ steps.branch-name.outputs.current_branch }}"
+          replace-with: '-'
+          flags: 'g'
+
+      - name: docker - build branch
+        if: startsWith(github.ref, 'refs/tags/') == false
+        uses: docker/build-push-action@v2
+        with:
+          context: .
+          file: ./docker/Dockerfile
+          platforms: linux/amd64,linux/arm64,linux/arm/v7
+          pull: true
+          push: true
+          tags: |
+            cloudb0x/cvm:${{ steps.dockertag.outputs.replaced }}
+
+      # cleanup
+      - name: cleanup
+        run: |
+          rm -f ${HOME}/.docker/config.json

.github/workflows/cleanup.yml

@@ -0,0 +1,26 @@
+name: Docker Cleanup
+
+on: delete
+
+jobs:
+  cleanup_branch:
+    if: startsWith(github.event.ref_type, 'branch') == true
+    runs-on: ubuntu-latest
+    steps:
+      - name: docker tag
+        uses: frabert/replace-string-action@master
+        id: dockertag
+        with:
+          pattern: '[:\.\/]+'
+          string: "${{ github.event.ref }}"
+          replace-with: '-'
+          flags: 'g'
+
+      - name: remove docker tag
+        shell: bash
+        env:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+          tag: ${{ steps.dockertag.outputs.replaced }}
+        run: |
+          docker run --rm lumir/remove-dockerhub-tag --user "$username" --password "$password" cloudb0x/cvm:$tag

.gitignore

@@ -0,0 +1,12 @@
+# misc
+/.idea/
+/.vscode/
+
+# configuration
+config.yml
+
+# vendor files
+/vendor/
+
+# dist folder
+/dist/

.goreleaser.yml

@@ -0,0 +1,49 @@
+# https://goreleaser.com
+project_name: cvm
+
+# Build
+builds:
+  -
+    env:
+      - CGO_ENABLED=0
+    goos:
+      - linux
+      - darwin
+      - windows
+    main: ./cmd/cvm
+    goarch:
+      - amd64
+      - arm64
+      - arm
+    goarm:
+      - 7
+    ldflags:
+      - -s -w
+      - -X "github.com/Cloudbox/cvm/build.Version={{ .Version }}"
+      - -X "github.com/Cloudbox/cvm/build.GitCommit={{ .ShortCommit }}"
+      - -X "github.com/Cloudbox/cvm/build.Timestamp={{ .Timestamp }}"
+    flags:
+      - -trimpath
+
+# Archive
+archives:
+  -
+    name_template: "{{ .ProjectName }}_v{{ .Version }}_{{ .Os }}_{{ .Arch }}{{ if .Arm }}v{{ .Arm }}{{ end }}{{ if .Mips }}_{{ .Mips }}{{ end }}"
+    format: "binary"
+
+# Checksum
+checksum:
+  name_template: "checksums.txt"
+  algorithm: sha512
+
+# Snapshot
+snapshot:
+  name_template: "{{ .Major }}.{{ .Minor }}.{{ .Patch }}-dev+{{ .ShortCommit }}"
+
+# Changelog
+changelog:
+  filters:
+    exclude:
+      - "^docs:"
+      - "^test:"
+      - "^Merge branch"

Makefile

@@ -0,0 +1,59 @@
+.DEFAULT_GOAL  := build
+CMD            := cvm
+TARGET         := $(shell go env GOOS)_$(shell go env GOARCH)
+DIST_PATH      := dist
+BUILD_PATH     := ${DIST_PATH}/${CMD}_${TARGET}
+GO_FILES       := $(shell find . -path ./vendor -prune -or -type f -name '*.go' -print)
+GIT_COMMIT     := $(shell git rev-parse --short HEAD)
+TIMESTAMP      := $(shell date +%s)
+VERSION        ?= 0.0.0-dev
+CGO            := 0
+
+# Deps
+.PHONY: check_goreleaser
+check_goreleaser:
+	@command -v goreleaser >/dev/null || (echo "goreleaser is required."; exit 1)
+
+.PHONY: test
+test: ## Run tests
+	go test ./... -cover -v -race ${GO_PACKAGES}
+
+.PHONY: vendor
+vendor: ## Vendor files and tidy go.mod
+	go mod vendor
+	go mod tidy
+
+.PHONY: vendor_update
+vendor_update: ## Update vendor dependencies
+	go get -u ./...
+	${MAKE} vendor
+
+.PHONY: build
+build: vendor ${BUILD_PATH}/${CMD} ## Build application
+
+# Binary
+${BUILD_PATH}/${CMD}: ${GO_FILES} go.sum
+	@echo "Building for ${TARGET}..." && \
+	mkdir -p ${BUILD_PATH} && \
+	CGO_ENABLED=${CGO} go build \
+		-mod vendor \
+		-trimpath \
+		-ldflags "-s -w -X github.com/Cloudbox/cvm/build.Version=${VERSION} -X github.com/Cloudbox/cvm/build.GitCommit=${GIT_COMMIT} -X github.com/Cloudbox/cvm/build.Timestamp=${TIMESTAMP}" \
+		-o ${BUILD_PATH}/${CMD} \
+		./cmd/cvm
+
+.PHONY: release
+release: check_goreleaser ## Generate a release, but don't publish
+	goreleaser --skip-validate --skip-publish --rm-dist
+
+.PHONY: publish
+publish: check_goreleaser ## Generate a release, and publish
+	goreleaser --rm-dist
+
+.PHONY: snapshot
+snapshot: check_goreleaser ## Generate a snapshot release
+	goreleaser --snapshot --skip-publish --rm-dist
+
+.PHONY: help
+help:
+	@grep -E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2}'

build/build.go

@@ -0,0 +1,15 @@
+package build
+
+import "fmt"
+
+var (
+	Version   string
+	Timestamp string
+	GitCommit string
+
+	UserAgent string
+)
+
+func init() {
+	UserAgent = fmt.Sprintf("cvm/%s", Version)
+}

cmd/cvm/config.go

@@ -0,0 +1,45 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+)
+
+func GetDefaultConfigDirectory(app string, filename string) string {
+	// binary path
+	bcd := getBinaryPath()
+	if _, err := os.Stat(filepath.Join(bcd, filename)); err == nil {
+		// there is a config file in the binary path
+		// so use this directory as the default
+		return bcd
+	}
+
+	// config dir
+	ucd, err := os.UserConfigDir()
+	if err != nil {
+		panic(fmt.Sprintf("userconfigdir: %v", err))
+	}
+
+	acd := filepath.Join(ucd, app)
+	if _, err := os.Stat(acd); os.IsNotExist(err) {
+		if err := os.MkdirAll(acd, os.ModePerm); err != nil {
+			panic(fmt.Sprintf("mkdirall: %v", err))
+		}
+	}
+
+	return acd
+}
+
+func getBinaryPath() string {
+	// get current binary path
+	dir, err := filepath.Abs(filepath.Dir(os.Args[0]))
+	if err != nil {
+		// get current working dir
+		if dir, err = os.Getwd(); err != nil {
+			panic(fmt.Sprintf("getwd: %v", err))
+		}
+	}
+
+	return dir
+}