Port to Go

Signed-off-by: Dave Henderson <[email protected]>

.github/dependabot.yml

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+version: 2
+updates:
+- package-ecosystem: github-actions
+  directory: "/"
+  schedule:
+    interval: daily
+    time: "02:00"
+    timezone: Canada/Eastern
+  open-pull-requests-limit: 10
+- package-ecosystem: gomod
+  directory: "/"
+  schedule:
+    interval: daily
+    time: "02:00"
+    timezone: Canada/Eastern
+  open-pull-requests-limit: 10
+- package-ecosystem: docker
+  directory: "/"
+  schedule:
+    interval: daily
+    time: "02:00"
+    timezone: Canada/Eastern
+  open-pull-requests-limit: 10

.github/labeler.yml

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+documentation:
+- docs/**/*
+- '*.md'
+
+dependencies:
+- go.mod
+- go.sum
+
+build:
+- .github/workflows/*
+- Makefile

.github/workflows/build.yml

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+name: Build
+on: [push]
+
+jobs:
+  test:
+    runs-on: ubuntu-20.04
+    container:
+      image: ghcr.io/hairyhenderson/gomplate-ci-build:latest
+    steps:
+      - uses: actions/[email protected]
+      - run: make test
+  lint:
+    runs-on: ubuntu-20.04
+    container:
+      image: ghcr.io/hairyhenderson/gomplate-ci-build:latest
+    steps:
+      - uses: actions/[email protected]
+      - run: make ci-lint

.github/workflows/codeql-analysis.yml

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+name: "CodeQL"
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    # The branches below must be a subset of the branches above
+    branches: [main]
+    paths-ignore:
+      - '**/*.md'
+  schedule:
+    - cron: '0 1 * * 2'
+
+jobs:
+  analyze:
+    name: Analyze
+    runs-on: ubuntu-20.04
+
+    strategy:
+      fail-fast: false
+      matrix:
+        # Override automatic language detection by changing the below list
+        # Supported options are ['csharp', 'cpp', 'go', 'java', 'javascript', 'python']
+        language: ['go']
+        # Learn more...
+        # https://docs.github.com/en/github/finding-security-vulnerabilities-and-errors-in-your-code/configuring-code-scanning#overriding-automatic-language-detection
+
+    steps:
+    - name: Checkout repository
+      uses: actions/[email protected]
+      with:
+        # We must fetch at least the immediate parents so that if this is
+        # a pull request then we can checkout the head.
+        fetch-depth: 2
+
+    # If this run was triggered by a pull request event, then checkout
+    # the head of the pull request instead of the merge commit.
+    - run: git checkout HEAD^2
+      if: ${{ github.event_name == 'pull_request' }}
+
+    # Initializes the CodeQL tools for scanning.
+    - name: Initialize CodeQL
+      uses: github/codeql-action/init@v1
+      with:
+        languages: ${{ matrix.language }}
+        # If you wish to specify custom queries, you can do so here or in a config file.
+        # By default, queries listed here will override any specified in a config file. 
+        # Prefix the list here with "+" to use these queries and those in the config file.
+        # queries: ./path/to/local/query, your-org/your-repo/queries@main
+
+    # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
+    # If this step fails, then you should remove it and run the build manually (see below)
+    - name: Autobuild
+      uses: github/codeql-action/autobuild@v1
+
+    # ℹ️ Command-line programs to run using the OS shell.
+    # 📚 https://git.io/JvXDl
+
+    # ✏️ If the Autobuild fails above, remove it and uncomment the following three lines
+    #    and modify them (or add more) to build your code if your project
+    #    uses a compiled language
+
+    #- run: |
+    #   make bootstrap
+    #   make release
+
+    - name: Perform CodeQL Analysis
+      uses: github/codeql-action/analyze@v1

.github/workflows/docker.yml

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+name: Docker Build
+on:
+  push:
+
+jobs:
+  docker-build:
+    runs-on: ubuntu-20.04
+    services:
+      registry:
+        image: registry:2
+        ports:
+          - '5000:5000'
+    env:
+      DOCKER_BUILDKIT: 1
+      DOCKER_CLI_EXPERIMENTAL: enabled
+      IMG_NAME: henet-ipupdater
+    steps:
+    - name: enable experimental mode
+      run: |
+        mkdir -p ~/.docker
+        echo '{"experimental": "enabled"}' > ~/.docker/config.json
+    - uses: actions/checkout@v2
+    - name: Set up QEMU
+      uses: docker/[email protected]
+    - name: Set up Docker Buildx
+      id: buildx
+      uses: docker/[email protected]
+      with:
+        version: v0.5.1
+        driver-opts: |
+          image=moby/buildkit:buildx-stable-1
+          network=host
+    - name: Available platforms
+      run: echo ${{ steps.buildx.outputs.platforms }}
+    - name: determine if this is a tag
+      run: |
+        if (git describe --abbrev=0 --exact-match &>/dev/null); then
+          tag=$(git describe --abbrev=0 --exact-match)
+          echo "is_tag=true" >> $GITHUB_ENV
+          echo "git_tag=$tag" >> $GITHUB_ENV
+          # splits the major version from $tag - assumes it's a 3-part semver
+          echo "major_version=${tag%%\.*}" >> $GITHUB_ENV
+        fi
+      if: github.repository == 'hairyhenderson/henet-ipupdater'
+    - name: Login to DockerHub
+      uses: docker/[email protected]
+      with:
+        username: hairyhenderson
+        password: ${{ secrets.DOCKERHUB_TOKEN }}
+      if: github.repository == 'hairyhenderson/henet-ipupdater' && (github.ref == 'refs/heads/main' || env.is_tag == 'true')
+    - name: Build & Push (non-main branch)
+      run: |
+        set -ex
+        make docker-multi COMMIT=${{ github.sha }} DOCKER_REPO=localhost:5000/${IMG_NAME} BUILDX_ACTION=--push
+
+        docker buildx imagetools create --dry-run -t localhost:5000/${IMG_NAME}:dev localhost:5000/${IMG_NAME}:latest
+        docker buildx imagetools create --dry-run -t localhost:5000/${IMG_NAME}:dev-alpine localhost:5000/${IMG_NAME}:alpine
+      if: github.repository != 'hairyhenderson/henet-ipupdater' || github.ref != 'refs/heads/main'
+    - name: Build & Push (main branch)
+      run: |
+        make docker-multi COMMIT=${{ github.sha }} DOCKER_REPO=hairyhenderson/${IMG_NAME} BUILDX_ACTION=--push
+      if: github.repository == 'hairyhenderson/henet-ipupdater' && github.ref == 'refs/heads/main'
+    - name: Build & Push (tagged release)
+      run: |
+        make docker-multi COMMIT=${{ github.sha }} DOCKER_REPO=hairyhenderson/${IMG_NAME} BUILDX_ACTION=--push
+
+        set -x
+        docker buildx imagetools create -t hairyhenderson/${IMG_NAME}:${git_tag} hairyhenderson/${IMG_NAME}:latest
+        docker buildx imagetools create -t hairyhenderson/${IMG_NAME}:${major_version} hairyhenderson/${IMG_NAME}:latest
+        docker buildx imagetools create -t hairyhenderson/${IMG_NAME}:${git_tag}-alpine hairyhenderson/${IMG_NAME}:alpine
+        docker buildx imagetools create -t hairyhenderson/${IMG_NAME}:${major_version}-alpine hairyhenderson/${IMG_NAME}:alpine
+      if: github.repository == 'hairyhenderson/henet-ipupdater' && env.is_tag == 'true'

.github/workflows/label.yml

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+name: Labeler
+on:
+  pull_request_target:
+
+jobs:
+  label:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/labeler@v3
+      with:
+        repo-token: "${{ secrets.GITHUB_TOKEN }}"

.gitignore

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+ipupdater
+bin/

.golangci.yml

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+linters-settings:
+  govet:
+    check-shadowing: true
+    enable:
+      - fieldalignment
+  golint:
+    min-confidence: 0
+  gocyclo:
+    min-complexity: 10
+  goconst:
+    min-len: 2
+    min-occurrences: 4
+  lll:
+    line-length: 140
+  nolintlint:
+    allow-leading-space: true # don't require machine-readable nolint directives (i.e. with no leading space)
+    allow-unused: false # report any unused nolint directives
+    require-explanation: false # don't require an explanation for nolint directives
+    require-specific: false # don't require nolint directives to be specific about which linter is being skipped
+
+linters:
+  disable-all: true
+  enable:
+    - asciicheck
+    - bodyclose
+    - deadcode
+    - depguard
+    - dogsled
+    - dupl
+    - errcheck
+    - exhaustive
+    - exportloopref
+    - funlen
+    - gci
+    # - gochecknoglobals
+    - gochecknoinits
+    - gocognit
+    - goconst
+    - gocritic
+    - gocyclo
+    - godox
+    - gofmt
+    - gofumpt
+    - goheader
+    - goimports
+    # - gomnd
+    - gomodguard
+    - goprintffuncname
+    - gosec
+    - gosimple
+    - govet
+    - ineffassign
+    - lll
+    - misspell
+    - nakedret
+    - nestif
+    - nlreturn
+    - noctx
+    - nolintlint
+    - prealloc
+    - revive
+    - rowserrcheck
+    - sqlclosecheck
+    - staticcheck
+    - structcheck
+    - stylecheck
+    - typecheck
+    - unconvert
+    - unparam
+    - unused
+    - varcheck
+    - whitespace
+    - wsl

Dockerfile

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+# syntax=docker/dockerfile:1.2.1-labs
+FROM --platform=linux/amd64 golang:1.17.2-alpine AS build
+
+ARG PKG_NAME
+ARG TARGETOS
+ARG TARGETARCH
+ARG TARGETVARIANT
+ENV GOOS=$TARGETOS GOARCH=$TARGETARCH
+
+RUN apk add --no-cache make git
+
+WORKDIR /src
+COPY go.mod ./
+COPY go.sum ./
+
+RUN --mount=type=cache,id=go-build-${TARGETOS}-${TARGETARCH}${TARGETVARIANT},target=/root/.cache/go-build \
+	--mount=type=cache,id=go-pkg-${TARGETOS}-${TARGETARCH}${TARGETVARIANT},target=/go/pkg \
+		go mod download -x
+
+COPY . ./
+
+RUN --mount=type=cache,id=go-build-${TARGETOS}-${TARGETARCH}${TARGETVARIANT},target=/root/.cache/go-build \
+	--mount=type=cache,id=go-pkg-${TARGETOS}-${TARGETARCH}${TARGETVARIANT},target=/go/pkg \
+		make build
+RUN mv bin/${PKG_NAME}* /bin/
+
+FROM scratch AS release-linux
+
+ARG PKG_NAME
+ARG VCS_REF
+ARG TARGETOS
+ARG TARGETARCH
+ARG TARGETVARIANT
+
+LABEL org.opencontainers.image.revision=$VCS_REF \
+	org.opencontainers.image.source="https://github.com/hairyhenderson/${PKG_NAME}"
+
+COPY --from=build /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt
+COPY --from=build /bin/${PKG_NAME}_${TARGETOS}-${TARGETARCH}${TARGETVARIANT} /${PKG_NAME}
+
+ENTRYPOINT [ "/ipupdater" ]
+
+FROM alpine:3.14.2 AS alpine
+
+ARG PKG_NAME
+ARG VCS_REF
+ARG TARGETOS
+ARG TARGETARCH
+ARG TARGETVARIANT
+
+LABEL org.opencontainers.image.revision=$VCS_REF \
+	org.opencontainers.image.source="https://github.com/hairyhenderson/${PKG_NAME}"
+
+COPY --from=build /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt
+COPY --from=build /bin/${PKG_NAME}_${TARGETOS}-${TARGETARCH}${TARGETVARIANT} /${PKG_NAME}
+
+ENTRYPOINT [ "/ipupdater" ]
+
+FROM --platform=windows/amd64 mcr.microsoft.com/windows/nanoserver:2009 AS release-windows
+
+ARG PKG_NAME
+ARG TARGETOS
+ARG TARGETARCH
+ARG TARGETVARIANT
+COPY --from=build /bin/${PKG_NAME}_${TARGETOS}-${TARGETARCH}${TARGETVARIANT}.exe /${PKG_NAME}.exe
+
+FROM release-$TARGETOS AS release

LICENSE

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+MIT License
+
+Copyright (c) 2016,2021 Dave Henderson
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.