Release script to facilitate releases

release.sh

+#!/bin/bash
+
+exists()
+{
+  command -v "$1" >/dev/null 2>&1
+}
+
+yesno () {
+    if exists whiptail; then
+        whiptail --yesno "$1" 10 60
+        return
+    elif exists dialog; then
+        dialog --yesno "$1" 10 60
+        return
+    fi
+
+    read -p "$1 (y/N)" answer
+    case ${answer:0:1} in
+        y|Y )
+            return 0
+        ;;
+        * )
+            return 1
+        ;;
+    esac
+}
+
+set -e
+
+if [ "$1" = "" ]; then
+    echo "Usage: $0 <version>"
+    exit 1
+fi
+version="$1"
+version_sane="$(echo $version | sed 's/^[0-9]\.[0-9]\+\.[0-9]\+$/YES/')"
+if [ "$version_sane" != "YES" ]; then
+    echo "Version should be in the format '1.23.45'"
+    exit 1
+fi
+version_major=${version%.*}
+
+echo "Changing directory to root of repository"
+cd "${0%/*}"
+
+echo "Changing to branch 'release/$version_major'"
+git checkout "release/$version_major"
+
+tag="$(git tag --contains)"
+branch="$(git symbolic-ref --quiet --short HEAD || git rev-parse --short HEAD)"
+if [ "$tag" = "v$version" ]; then
+    echo "Already tagged!"
+else
+    echo "Creating new tag 'v$version"
+    git tag --annotate "v$version"
+fi
+
+if ! yesno "Do you want to build a docker container?"; then
+    exit 1
+fi
+
+if [ -n "$(git status --porcelain)" ]; then
+    echo "Unclean working directory!"
+    git status
+    exit 1
+fi
+
+docker_tag="registry.gitlab.com/thaliawww/concrexit:$version"
+
+docker build -t "$docker_tag" .
+
+if yesno "Do you want to push the container?"; then
+    docker push "$docker_tag"
+fi