Merge pull request 'feature-sonarqube-drone' into main

- adds a drone pipeline that triggers analysis on
  a sonarqube server
- https://codeberg.org/flyingfishflash/ledger/pulls/12

.drone.yml

@@ -219,6 +219,55 @@ steps:
       - name: drone_cache
         path: /drone/drone_cache
 
+---
+kind: pipeline
+name: "sonarqube"
+type: docker
+
+trigger:
+  event:
+    - push
+    - tag
+
+depends_on:
+  - "frontend - build"
+  - "backend - build"
+
+volumes:
+  - name: drone_cache
+    host:
+      path: /var/lib/docker/volumes_managed/drone_cache
+
+steps:
+  - name: cache pull
+    image: alpine/git
+    commands:
+      - /drone/src/scripts/ci/drone/drone-cache-pull.sh ledger-backend
+    volumes:
+      - name: drone_cache
+        path: /drone/drone_cache
+
+  - name: sonarqube analysis
+    failure: ignore
+    image: gradle:7.4.2-jdk17
+    depends_on:
+      - "cache pull"
+    environment:
+      SONAR_PROJECT_KEY:
+        from_secret: sonar_project_key
+      SONAR_HOST:
+        from_secret: sonar_host
+      SONAR_LOGIN:
+        from_secret: sonar_login
+    commands:
+      - >
+        /drone/src/scripts/ci/drone/drone-is-sonarqube-configured.sh &&
+        gradle sonarqube
+        -Dsonar.projectKey=$SONAR_PROJECT_KEY
+        -Dsonar.projectVersion=$(./scripts/version.sh version)
+        -Dsonar.host.url=$SONAR_HOST
+        -Dsonar.login=$SONAR_LOGIN
+
 ---
 kind: pipeline
 name: "backend - publish"

build.gradle

@@ -1,8 +1,12 @@
+
 plugins {
     id 'com.diffplug.spotless' version '6.4.2'
     id "com.github.ben-manes.versions" version '0.42.0'
+    id "org.sonarqube" version '3.3'
 }
 
+description = 'A Java based bookkeeping engine and API server, along with an Angular based web application for personal finance management.'
+
 ext {
 }
 

scripts/ci/drone/drone-is-sonarqube-configured.sh

@@ -0,0 +1,29 @@
+#!/bin/sh
+
+exitcode=0
+
+case $SONAR_HOST in
+  (*[![:blank:]]*)
+    echo '$SONAR_HOST is not blank';;
+  (*)
+    echo '$SONAR_HOST contains only blanks or is empty or is unset'
+    exitcode=1;;
+esac
+
+case $SONAR_LOGIN in
+  (*[![:blank:]]*)
+    echo '$SONAR_LOGIN is not blank';;
+  (*)
+    echo '$SONAR_LOGIN contains only blanks or is empty or is unset'
+    exitcode=1;;
+esac
+
+case $SONAR_PROJECT_KEY in
+  (*[![:blank:]]*)
+    echo '$SONAR_PROJECT_KEY is not blank';;
+  (*)
+    echo '$SONAR_PROJECT_KEY contains only blanks or is empty or is unset'
+    exitcode=1;;
+esac
+
+exit $exitcode