Add build automation

.circleci/config.yml

@@ -0,0 +1,40 @@
+version: 2
+jobs:
+  lint:
+    docker:
+      - image: koalaman/shellcheck-alpine
+    steps:
+      - checkout
+      - run:
+          name: lint
+          command: |
+            shellcheck -x scripts/tag.sh
+            shellcheck -x scripts/install_plugin.sh
+  untagged-build:
+    docker:
+      - image: circleci/golang:1.13
+    working_directory: /go/src/github.com/hickeyma/helm-mapkubeapis
+    steps:
+      - checkout
+      - run: make build
+  tagged-build:
+    docker:
+      - image: circleci/golang:1.13
+    working_directory: /go/src/github.com/hickeyma/helm-mapkubeapis
+    steps:
+      - checkout
+      - run: curl -sL https://raw.githubusercontent.com/goreleaser/get/master/get | VERSION=v0.117.2 bash
+workflows:
+  version: 2
+  untagged-build:
+    jobs:
+      - lint
+      - untagged-build
+  tagged-build:
+    jobs:
+      - tagged-build:
+          filters:
+            tags:
+              only: /^v.*/
+            branches:
+              ignore: /.*/

.gitignore

@@ -1 +1,2 @@
 bin/
+tmp/

.goreleaser.yml

@@ -0,0 +1,21 @@
+builds:
+  - main: ./cmd/helm-mapkubeapis/map_kube_apis.go
+    binary: mapkubeapis
+    env:
+      - CGO_ENABLED=0
+    goos:
+      - darwin
+      - linux
+      - windows
+    goarch:
+      - amd64
+      - arm64
+archive:
+  format: tar.gz
+  files:
+    - README.md
+    - LICENSE
+    - plugin.yaml
+    - scripts/install_plugin.sh
+checksum:
+  name_template: 'checksums.txt'

README.md

@@ -20,6 +20,25 @@ The `mapkubeapis` plugin fixes the issue by mapping releases which contain depre
 
 > Note: It currently support Helm v3 only.
 
+## Install
+
+Based on the version in `plugin.yaml`, release binary will be downloaded from GitHub:
+
+```console
+$ helm plugin install https://github.com/hickeyma/helm-mapkubeapis.git
+Downloading and installing helm-mapkubeapis v0.0.1 ...
+https://github.com/hickeyma/helm-mapkubeapis/releases/download/v0.0.1/helm-mapkubeapis_0.0.1_darwin_amd64.tar.gz
+Installed plugin: mapkubeapis
+```
+
+### For Windows (using WSL)
+Helm's plugin install hook system relies on `/bin/sh`, regardless of the operating system present. Windows users can work around this by using Helm under [WSL](https://docs.microsoft.com/en-us/windows/wsl/install-win10).
+```
+$ wget https://get.helm.sh/helm-v3.0.0-linux-amd64.tar.gz
+$ tar xzf helm-v3.0.0-linux-amd64.tar.gz
+$ ./linux-amd64/helm plugin install https://github.com/hickeyma/helm-mapkubeapis
+```
+
 ## Usage
 
 ### Map Helm v3 deprecated Kubernetes APIs

plugin.yaml

@@ -1,5 +1,8 @@
 name: "mapkubeapis"
 version: "0.0.1"
-usage: "map release deprecated Kubernetes APIs in-place"
-description: "map release deprecated Kubernetes APIs in-place"
+usage: "Map release deprecated Kubernetes APIs in-place"
+description: "Map release deprecated Kubernetes APIs in-place"
 command: "$HELM_PLUGIN_DIR/bin/mapkubeapis"
+hooks:
+  install: "cd $HELM_PLUGIN_DIR; scripts/install_plugin.sh"
+  update: "cd $HELM_PLUGIN_DIR; scripts/install_plugin.sh"

scripts/install_plugin.sh

@@ -0,0 +1,42 @@
+#!/bin/sh -e
+
+if [ -n "${HELM_LINTER_PLUGIN_NO_INSTALL_HOOK}" ]; then
+    echo "Development mode: not downloading versioned release."
+    exit 0
+fi
+
+# shellcheck disable=SC2002
+version="$(cat plugin.yaml | grep "version" | cut -d '"' -f 2)"
+echo "Downloading and installing helm-mapkubeapis v${version} ..."
+
+url=""
+if [ "$(uname)" = "Darwin" ]; then
+    url="https://github.com/hickeyma/helm-mapkubeapis/releases/download/v${version}/helm-mapkubeapis_${version}_darwin_amd64.tar.gz"
+elif [ "$(uname)" = "Linux" ] ; then
+    if [ "$(uname -m)" = "aarch64" ] || [ "$(uname -m)" = "arm64" ]; then
+        url="https://github.com/hickeyma/helm-mapkubeapis/releases/download/v${version}/helm-mapkubeapis_${version}_linux_arm64.tar.gz"
+    else
+        url="https://github.com/hickeyma/helm-mapkubeapis/releases/download/v${version}/helm-mapkubeapis_${version}_linux_amd64.tar.gz"
+    fi
+else
+    url="https://github.com/hickeyma/helm-mapkubeapis/releases/download/v${version}/helm-mapkubeapis_${version}_windows_amd64.tar.gz"
+fi
+
+echo "$url"
+
+mkdir -p "bin"
+mkdir -p "releases/v${version}"
+
+# Download with curl if possible.
+# shellcheck disable=SC2230
+if [ -x "$(which curl 2>/dev/null)" ]; then
+    curl -sSL "${url}" -o "releases/v${version}.tar.gz"
+else
+    wget -q "${url}" -O "releases/v${version}.tar.gz"
+fi
+tar xzf "releases/v${version}.tar.gz" -C "releases/v${version}"
+mv "releases/v${version}/mapkubeapis" "bin/mapkubeapis" || \
+    mv "releases/v${version}/mapkubeapis.exe" "bin/mapkubeapis"
+mv "releases/v${version}/plugin.yaml" .
+mv "releases/v${version}/README.md" .
+mv "releases/v${version}/LICENSE" .

scripts/tag.sh

@@ -0,0 +1,10 @@
+#!/bin/sh -e
+
+# shellcheck disable=SC2002
+tag="$(cat plugin.yaml | grep "version" | cut -d '"' -f 2)"
+echo "Tagging helm-mapkubeapis with v${tag} ..."
+
+git checkout master
+git pull
+git tag -a -m "Release v$tag" "v$tag" 
+git push origin refs/tags/v"$tag"