Upload release artifacts when a tag is cut (#8)

.circleci/config.yml

@@ -54,6 +54,19 @@ jobs:
           echo "Version from kube-linter: ${version}. Expected version: ${expected_version}"
           [[ "${version}" == "${expected_version}" ]]
 
+    - run:
+        name: Create a GitHub release, if on tag.
+        command: |
+          [[ -n "${CIRCLE_TAG}" ]] || exit 0
+
+          wget --quiet https://github.com/gruntwork-io/fetch/releases/download/v0.3.5/fetch_linux_amd64
+          sudo install fetch_linux_amd64 /usr/bin/fetch
+          ghr_version="v0.13.0"
+          fetch --repo="https://github.com/tcnksm/ghr" --tag="${ghr_version}" --release-asset="ghr_${ghr_version}_linux_amd64.tar.gz" .
+          tar -zxvf ghr_${ghr_version}_linux_amd64.tar.gz
+          sudo install ghr_${ghr_version}_linux_amd64/ghr /usr/bin/ghr
+          which ghr
+          ./scripts/create_github_release.sh "${CIRCLE_TAG}" ./bin
 
 workflows:
   version: 2

scripts/create_github_release.sh

@@ -0,0 +1,25 @@
+#!/usr/bin/env bash
+
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+source "${SCRIPT_DIR}/utils.sh"
+
+set -eo pipefail
+
+[[ -n "${GITHUB_TOKEN}" ]] || die "No GITHUB_TOKEN found."
+
+tag="$1"
+bin_dir="$2"
+[[ -n "${tag}" && -n "${bin_dir}" ]] || die "Usage: $0 <tag> <binary_directory>"
+
+tmp_dir="$(mktemp -d)"
+for os in darwin linux windows; do
+  bin_name="kube-linter"
+  if [[ "${os}" == "windows" ]]; then
+    bin_name="kube-linter.exe"
+  fi
+  tar -C "${bin_dir}/${os}" -czf "${tmp_dir}/kube-linter-${os}.tar.gz" "${bin_name}"
+  zip --junk-paths "${tmp_dir}/kube-linter-${os}.zip" "${bin_dir}/${os}/${bin_name}"
+done
+
+ghr -prerelease -n "v${tag}" "${tag}" "${tmp_dir}"
+rm -rf "${tmp_dir}"