Refactor the tiny-remapper CLI

.gitignore

@@ -5,8 +5,11 @@
 /.settings/
 /.classpath
 /.project
+/.factorypath
 /.gradle
 *.jar
 *.tiny
 .idea/
+.settings/
+.vscode/
 !src/test/resources/**

build.gradle

@@ -2,32 +2,48 @@ plugins {
 	id "java"
 	id "maven-publish"
 	id "com.diffplug.spotless" version "5.10.2"
+	id "com.github.johnrengelman.shadow" version "7.0.0"  // Make a fat jar
+	id "org.asciidoctor.jvm.convert" version "3.1.0"      // Make man pages
+	id "net.kyori.blossom" version "1.2.0"                // Better version (again)
 	// TODO: Apply checkstyle
 }
 
 sourceCompatibility = JavaVersion.VERSION_1_8
 targetCompatibility = JavaVersion.VERSION_1_8
 
-version = '0.4.1'
+version = "0.4.1"
 
 def ENV = System.getenv()
 version = version + (ENV.GITHUB_ACTIONS ? "" : "+local")
 
 group = "org.quiltmc"
-archivesBaseName = 'tiny-remapper'
+archivesBaseName = "tiny-remapper"
 
 repositories {
 	mavenCentral()
 }
 
 dependencies {
-	def asmVersion = "9.1"
-
+	// ASM
 	implementation "org.ow2.asm:asm:$asmVersion"
 	implementation "org.ow2.asm:asm-commons:$asmVersion"
 	implementation "org.ow2.asm:asm-tree:$asmVersion"
 	implementation "org.ow2.asm:asm-util:$asmVersion"
-	testImplementation 'org.junit.jupiter:junit-jupiter:5.6.2'
+
+	// Testing
+	testImplementation "org.junit.jupiter:junit-jupiter:5.6.2"
+
+	// CLI tool
+	implementation "info.picocli:picocli:$picocliVersion"
+	annotationProcessor "info.picocli:picocli-codegen:$picocliVersion"
+
+	implementation group: "org.fusesource.jansi", name: "jansi", version: "2.3.3"
+	implementation "info.picocli:picocli-jansi-graalvm:1.2.0"
+}
+
+compileJava {
+	// For PicoCLI annotation processor
+	options.compilerArgs += ["-Aproject=${project.group}/${project.name}"]
 }
 
 java {
@@ -52,25 +68,40 @@ spotless {
 	}
 }
 
+blossom {
+	replaceToken("__TINY_VERSION", project.version)
+	replaceToken("__ASM_VERSION", asmVersion)
+}
+
 test {
 	useJUnitPlatform()
 	testLogging {
 		showStandardStreams = true
-		exceptionFormat = 'full'
-		events = ['passed', 'failed', 'skipped']
+		exceptionFormat = "full"
+		events = ["passed", "failed", "skipped"]
 	}
 }
 
 jar {
 	manifest {
 		attributes	"Implementation-Title": "TinyRemapper",
-					"Implementation-Version": archiveVersion,
+					"Implementation-Version": version,
 					// TODO: Move to application plugin instead of placing this in the manifest directly
 					"Main-Class": "net.fabricmc.tinyremapper.Main",
 					"Automatic-Module-Name": "org.quiltmc.tinyremapper"
 	}
 }
 
+shadowJar {
+	archiveClassifier.set("fat")
+}
+
+build {
+	dependsOn {
+		shadowJar
+	}
+}
+
 publishing {
 	publications {
 		mavenJava(MavenPublication) {
@@ -90,3 +121,23 @@ publishing {
 		}
 	}
 }
+
+// Manpage generator (included with PicoCLI)
+task generateManpageAsciiDoc(type: JavaExec) {
+	dependsOn(classes)
+	group = "Documentation"
+	description = "Generate AsciiDoc manpage"
+	classpath(configurations.runtimeClasspath, configurations.annotationProcessor, sourceSets.main.runtimeClasspath)
+	mainClass = "picocli.codegen.docgen.manpage.ManPageGenerator"
+	args "net.fabricmc.tinyremapper.Main", "--outdir=${project.buildDir}/generated-picocli-docs", "-v" //, "--template-dir=src/docs/mantemplates"
+}
+
+asciidoctor {
+	dependsOn(generateManpageAsciiDoc)
+	sourceDir = file("${project.buildDir}/generated-picocli-docs")
+	outputDir = file("${project.buildDir}/docs")
+	logDocuments = true
+	outputOptions {
+		backends = ["manpage", "html5"]
+	}
+}

gradle.properties

@@ -0,0 +1,2 @@
+asmVersion = 9.1
+picocliVersion = 4.6.1

gradlew.bat

@@ -1,89 +1,89 @@
-@rem
-@rem Copyright 2015 the original author or authors.
-@rem
-@rem Licensed under the Apache License, Version 2.0 (the "License");
-@rem you may not use this file except in compliance with the License.
-@rem You may obtain a copy of the License at
-@rem
-@rem      https://www.apache.org/licenses/LICENSE-2.0
-@rem
-@rem Unless required by applicable law or agreed to in writing, software
-@rem distributed under the License is distributed on an "AS IS" BASIS,
-@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-@rem See the License for the specific language governing permissions and
-@rem limitations under the License.
-@rem
-
-@if "%DEBUG%" == "" @echo off
-@rem ##########################################################################
-@rem
-@rem  Gradle startup script for Windows
-@rem
-@rem ##########################################################################
-
-@rem Set local scope for the variables with windows NT shell
-if "%OS%"=="Windows_NT" setlocal
-
-set DIRNAME=%~dp0
-if "%DIRNAME%" == "" set DIRNAME=.
-set APP_BASE_NAME=%~n0
-set APP_HOME=%DIRNAME%
-
-@rem Resolve any "." and ".." in APP_HOME to make it shorter.
-for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
-
-@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
-
-@rem Find java.exe
-if defined JAVA_HOME goto findJavaFromJavaHome
-
-set JAVA_EXE=java.exe
-%JAVA_EXE% -version >NUL 2>&1
-if "%ERRORLEVEL%" == "0" goto execute
-
-echo.
-echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
-echo.
-echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation.
-
-goto fail
-
-:findJavaFromJavaHome
-set JAVA_HOME=%JAVA_HOME:"=%
-set JAVA_EXE=%JAVA_HOME%/bin/java.exe
-
-if exist "%JAVA_EXE%" goto execute
-
-echo.
-echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
-echo.
-echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation.
-
-goto fail
-
-:execute
-@rem Setup the command line
-
-set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
-
-
-@rem Execute Gradle
-"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
-
-:end
-@rem End local scope for the variables with windows NT shell
-if "%ERRORLEVEL%"=="0" goto mainEnd
-
-:fail
-rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
-rem the _cmd.exe /c_ return code!
-if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
-exit /b 1
-
-:mainEnd
-if "%OS%"=="Windows_NT" endlocal
-
-:omega
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega