chore: Build MIT version

.github/workflows/ci-mit.yml

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+name: ci-mit
+'on':
+  create: null
+  pull_request:
+    types:
+      - opened
+      - synchronize
+      - reopened
+    paths-ignore:
+      - '*.md'
+      - docs/**
+  push:
+    branches:
+      - master
+    paths-ignore:
+      - '*.md'
+      - docs/**
+  workflow_dispatch: null
+defaults:
+  run:
+    shell: bash
+jobs:
+  workflow_config:
+    runs-on: ubuntu-latest
+    outputs:
+      do_release: '${{ steps.config.outputs.do_release }}'
+      do_snapshot_release: '${{ steps.config.outputs.do_snapshot_release }}'
+      pom_version: '${{ steps.config.outputs.pom_version }}'
+    steps:
+      - name: Checkout the repository
+        uses: actions/checkout@v3
+      - name: Run pre-processor
+        run: |
+          ls -l
+          java -jar sjpp.jar
+          java -jar sjpp.jar src src-mit __MIT__
+          ls -l
+      - name: Rename build-mit.gradle
+        run: |
+          ls -l *.kts
+          cp build-mit.gradle.kts build.gradle.kts
+          ls -l *.kts
+      - name: Compile
+        run: gradle -q compileJava --no-daemon	  
+      - name: print version
+        run: |
+          ls -l build/libs
+          java -version build/libs/*.jar

build-mit.gradle.kts

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+//    permits to start the build setting the javac release parameter, no parameter means build for java8:
+// gradle clean build -x javaDoc -PjavacRelease=8
+// gradle clean build -x javaDoc -PjavacRelease=17
+//    also supported is to build first, with java17, then switch the java version, and run the test with java8:
+// gradle clean build -x javaDoc -x test
+// gradle test
+val javacRelease = (project.findProperty("javacRelease") ?: "8") as String
+
+plugins {
+	java
+	`maven-publish`
+	signing
+}
+
+group = "net.sourceforge.plantuml"
+description = "PlantUML"
+
+java {
+	withSourcesJar()
+	withJavadocJar()
+	registerFeature("pdf") {
+		usingSourceSet(sourceSets["main"])
+	}
+}
+
+dependencies {
+	compileOnly("org.apache.ant:ant:1.10.13")
+	testImplementation("org.assertj:assertj-core:3.24.2")
+	testImplementation("org.junit.jupiter:junit-jupiter:5.9.2")
+	testImplementation("org.scilab.forge:jlatexmath:1.0.7")
+}
+
+repositories {
+	mavenLocal()
+	mavenCentral()
+}
+
+sourceSets {
+	main {
+		java {
+			srcDirs("src-mit")
+		}
+		resources {
+			srcDirs("src-mit")
+			include("**/*.png")
+			include("**/*.svg")
+			include("**/*.txt")
+		}
+	}
+}
+
+tasks.compileJava {
+	if (JavaVersion.current().isJava8) {
+		java.targetCompatibility = JavaVersion.VERSION_1_8
+	} else {
+		options.release.set(Integer.parseInt(javacRelease))
+	}
+}
+
+tasks.withType<Jar>().configureEach {
+	manifest {
+		attributes["Main-Class"] = "net.sourceforge.plantuml.Run"
+		attributes["Implementation-Version"] = archiveVersion
+		attributes["Build-Jdk-Spec"] = System.getProperty("java.specification.version")
+		from("manifest.txt")
+	}
+	from("skin") { into("skin") }
+	from("stdlib") { into("stdlib") }
+	from("svg") { into("svg") }
+	from("themes") { into("themes") }
+	// source sets for java and resources are on "src", only put once into the jar
+	duplicatesStrategy = DuplicatesStrategy.EXCLUDE
+}
+
+
+tasks.withType<JavaCompile>().configureEach {
+	options.encoding = "UTF-8"
+}
+