Refactor to support multiple OS's

Signed-off-by: Marcus Noble <github@marcusnoble.co.uk>

home/.bin/gs-release

@@ -0,0 +1,103 @@
+#!/usr/bin/env bash
+
+set -e
+
+print_usage() {
+  echo "gs-release - create a new release of a Giant Swarm repo"
+  echo " "
+  echo "gs-release [SEMVER LEVEL]"
+  echo " "
+  echo " "
+  echo "Options:"
+  echo "-h, --help      show this help text"
+}
+
+while test $# -gt 0; do
+  case "$1" in
+    -h|--help)
+      print_usage
+      exit 0
+      ;;
+    *)
+      break
+      ;;
+  esac
+done
+
+SEMVER=$1
+
+CURRENT_TAG=$(git describe --tags --abbrev=0 2>/dev/null)
+MAIN_BRANCH=$(git remote show origin 2>/dev/null|grep HEAD|sed 's/.* //')
+CURRENT_BRANCH=$(git rev-parse --abbrev-ref HEAD 2>/dev/null)
+
+if [ "$MAIN_BRANCH" != "$CURRENT_BRANCH" ]; then
+  echo "Not currently on main branch, please switch to ${MAIN_BRANCH} to perform a release"
+  exit 1
+fi
+
+VERSION_PARTS=($(echo $CURRENT_TAG | tr "." "\n"))
+VERSION_MAJOR=${VERSION_PARTS[1]}
+VERSION_MINOR=${VERSION_PARTS[2]}
+VERSION_PATCH=${VERSION_PARTS[3]}
+
+echo "The latest released version is ${CURRENT_TAG}"
+echo ""
+
+if [[ "$SEMVER" == "" ]]; then
+  printf "What semver release level? (patch, minor or major): "
+  read SEMVER
+fi
+
+case ${SEMVER} in
+  patch)
+    VERSION_PATCH=$((VERSION_PATCH+1))
+    ;;
+
+  minor)
+    VERSION_MINOR=$((VERSION_MINOR+1))
+    VERSION_PATCH=0
+    ;;
+
+  major)
+    if [[ ${VERSION_MAJOR:0:1} == "v" ]]; then
+      VERSION_MAJOR="v$((VERSION_MAJOR+1))"
+    else
+      VERSION_MAJOR=$((VERSION_MAJOR+1))
+    fi
+    VERSION_MINOR=0
+    VERSION_PATCH=0
+    ;;
+
+  *)
+    echo "Unknown Semver level provided"
+    exit 1
+    ;;
+esac
+
+NEW_VERSION="${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_PATCH}"
+NEW_BRANCH="${MAIN_BRANCH}#release#${NEW_VERSION}"
+
+echo ""
+echo "✨ ✨ ✨ ✨ ✨ ✨ ✨ ✨ ✨ ✨ ✨ ✨ ✨ ✨ "
+echo "Current version  ${CURRENT_TAG}"
+echo "    New version  ${NEW_VERSION}"
+echo " Release branch  ${NEW_BRANCH}"
+echo "✨ ✨ ✨ ✨ ✨ ✨ ✨ ✨ ✨ ✨ ✨ ✨ ✨ ✨ "
+echo ""
+
+printf "Confirm? (y/n): "
+read CONFIRM
+
+if [ "${CONFIRM}" = "y" ]; then
+  echo "Publishing new release branch..."
+  git checkout -b "${NEW_BRANCH}"
+  git push -u origin "${NEW_BRANCH}"
+
+  ORG_NAME=$(git remote get-url origin | sed 's/.*github.com[:|\/]//' | sed 's/\.git$//' | tr '/' ' ' | awk '{print $1}')
+  REPO_NAME=$(git remote get-url origin | sed 's/.*github.com[:|\/]//' | sed 's/\.git$//' | tr '/' ' ' | awk '{print $2}')
+
+  echo "🚀  Keep an eye on https://github.com/${ORG_NAME}/${REPO_NAME}/pulls for the new release PR"
+else
+  echo "Aborting..."
+  exit 1
+fi