import org.apache.tools.ant.filters.*

/*********************************************************************************
 * distribution.gradle
 *
 * This contains gradle tasks for packaging Ghidra artifacts for distribution. To
 * run a full distribution, execute either the "createLocalInstallation" or 
 * "createMultiPlatformInstallation" tasks. The former will create a distribution 
 * for the local platform only; the latter will create it for all available platforms.
 *
 * Note: This is included from the main build.gradle file.
 *
 *********************************************************************************/
 
 /*********************************************************************************
  * NOTE: Throughout this file, many of the "into" clauses of zip tasks are 
  *       enclosed within a closure.  This is to delay the evaluation of the zip 
  *       destination path, so that subprojects have the opportunity to change that
  *       path.  Specifically, subprojects can specify an "extendsFromProject" property
  *       which will cause the content from that project to be "overlayed" onto the 
  *       base project within the zip and consequently, the extracted distribution.
  *       For example, if a project named "Bar" extended a project named "Foo" such 
  *       that in the distribution, you wanted all the files from "Foo" and "Bar" to 
  *       exist in a module named "Foo", you would include the following line in the
  *       build.gradle file for "Bar"
  *
  *		  project.ext.extendsFromProject = project(':Foo')
  *
  *********************************************************************************/

/********************************************************************************
 * Local Vars
 *********************************************************************************/
def currentPlatform = getCurrentPlatformName()
def PROJECT_DIR = file (rootProject.projectDir.absolutePath)
def DISTRIBUTION_DIR = file("$buildDir/dist")
def ZIP_NAME_PREFIX = "${rootProject.DISTRO_PREFIX}_${rootProject.RELEASE_NAME}_${rootProject.BUILD_DATE_SHORT}"
ext.ZIP_DIR_PREFIX = rootProject.DISTRO_PREFIX


FileTree javadocFiles = fileTree (rootProject.projectDir.toString()) {
	include '**/Framework/**/*.java'
	include '**/Features/Base/src/main/java/**/*.java'
	exclude '**/Features/Base/src/main/java/ghidra/app/plugin/**/*.java';
	include '**/Features/Decompiler/src/main/java/ghidra/app/decompiler/**/*.java'
	include '**/Features/Python/**/*.java'
	exclude '**/GhidraBuild/**/*.java';
	exclude '**/src/test/**'
	exclude '**/src/test.slow/**'
	exclude '**/pcodeCPort/**'  // not intended for general consumption
}

/*********************************************************************************
 * JAVADOCS - RAW
 *
 * Creates javadocs for all source defined in the above 'javadocFiles' file tree.
 *
 * Note:	Artifacts are placed in a temporary folder that is deleted upon 
 * 		completion of the build.
 *
 *********************************************************************************/
task createJavadocs(type: Javadoc, description: 'Generate javadocs for all projects', group: 'Documentation') {
	
	destinationDir = file(rootProject.projectDir.toString() + "/build/tmp/javadoc")
	
	failOnError false
		
	// Here for reference. If we want to turn on javadoc for all source files, uncomment
	// the following line (and comment out the next one):
	// source subprojects.collect { it.sourceSets.main.allJava }
	source javadocFiles
	
	// Must add classpath for main and test source sets. Javadoc will fail if it cannot
	// find referenced classes.
	classpath = files(subprojects.findAll {
		!it.name.equals("JsonDoclet") // Need to exclude this until we upgrade json-simple (hamcrest dependency issue)
	}.collect {
		it.sourceSets.main.compileClasspath
		it.sourceSets.test.compileClasspath 
	})
	
	// If we don't exclude module directories, the javascript search feature doesn't work
	options.addBooleanOption("-no-module-directories", true)
	
	// Some internal packages are not public and need to be exported.
    options.addMultilineStringsOption("-add-exports").setValue(["java.desktop/sun.awt.image=ALL-UNNAMED", 
    															"java.desktop/sun.awt=ALL-UNNAMED", 
    															"java.base/sun.security.x509=ALL-UNNAMED", 
    															"java.base/sun.security.provider=ALL-UNNAMED", 
    															"java.base/sun.security.util=ALL-UNNAMED"])
}
  
 /*********************************************************************************
 * JSONDOCS - RAW
 *
 * Creates JSON docs for all source defined in the above 'javadocFiles' file tree. 
 * These documents are used by Python to show system documentation (whereas Java will 
 * use Javadoc files).
 *
 * Note:	Artifacts are placed in a temporary folder that is deleted upon 
 * 		completion of the build.
 *
 *********************************************************************************/
 
configurations {
	jsondoc
}

dependencies {
	jsondoc project('JsonDoclet')
}
 
task createJsondocs(type: Javadoc, description: 'Generate JSON docs for all projects', group: 'Documentation') {
	
	group 'private'
	
	String ROOT_PROJECT_DIR = rootProject.projectDir.toString()
	
	destinationDir = file(ROOT_PROJECT_DIR + "/build/tmp/jsondoc")
	
	failOnError false
		
	// Here for reference. If we want to turn on javadoc for all source files, uncomment
	// the following line (and comment out the next one):
	// source subprojects.collect { it.sourceSets.main.allJava }
	source javadocFiles
	
	// Must add classpath for main and test source sets. Javadoc will fail if it cannot
	// find referenced classes.
	classpath = files(subprojects.findAll {
		!it.name.equals("JsonDoclet") // Need to exclude this until we upgrade json-simple (hamcrest dependency issue)
	}.collect {
		it.sourceSets.main.compileClasspath
		it.sourceSets.test.compileClasspath 
	})
	
	// Some internal packages are not public and need to be exported. 
    options.addMultilineStringsOption("-add-exports").setValue(["java.desktop/sun.awt.image=ALL-UNNAMED", 
    															"java.desktop/sun.awt=ALL-UNNAMED", 
    															"java.base/sun.security.x509=ALL-UNNAMED", 
    															"java.base/sun.security.provider=ALL-UNNAMED", 
    															"java.base/sun.security.util=ALL-UNNAMED"])
	
	options.doclet = "JsonDoclet"
	doFirst {
		options.docletpath = new ArrayList(configurations.jsondoc.files)
	}
	dependsOn project('JsonDoclet').jar // Wish I didn't have to reach like this
}

/*********************************************************************************
 * JAVADOCS - ZIP
 *
 * Creates a zip file of all javadocs to be put in the release.
 *
 * Note: Artifacts are placed in a temporary folder, deleted at build completion
 *
 *********************************************************************************/
task zipJavadocs(type: Zip) {
	group 'private'
	archiveName 'GhidraAPI_javadoc.zip'	
	destinationDir file(rootProject.projectDir.toString() + "/build/tmp")

	from createJavadocs {
		into "api"
	}
	
	from createJsondocs {
		into "api"
	}
	
	description "Zips javadocs for Ghidra API.  [gradleScripts/distribution.gradle]"
}

/*********************************************************************************
 * COMMON
 *
 * Copies all common jars and associated resources.  This is basically 
 * everything that is NOT an extension.
 *
 *********************************************************************************/
task assembleCommon (type: Copy) {

	group 'private'
	description "Copies the common files/folders to the distribution location."
	destinationDir file(DISTRIBUTION_DIR.getPath() + "/" +  ZIP_DIR_PREFIX)
	dependsOn {subprojects.ip} 
	dependsOn {subprojects.assemble}


	// Make sure that we don't try to copy the same file with the same path.
	duplicatesStrategy 'exclude'
			
	exclude "**/certification.manifest"
	exclude "**/certification.local.manifest"
	exclude "**/.project"
	exclude "**/.classpath"
	exclude "**/delete.me"
	exclude "**/.vs/**"
	exclude "**/*.vcxproj.user"
	
	/////////////////
	// GHIDRA PROJECTS
	/////////////////
	subprojects.each { p ->
		p.afterEvaluate {
	
			boolean excludeFromBuild = p.findProperty("excludeFromBuild") ?: false;
	
			if (!excludeFromBuild && isGhidra(p) && !isExtension(p)) {
				
				if (!isEmptyProject(p)) {
					from (p.jar) {
						// use closures for getting zip path to delay evaluation. See note at top of 
						//file.
						into { getZipPath(p) + "/lib" }		
					}
				}
		
				from (p.projectDir.toString() + "/Module.manifest") {
					into  { getZipPath(p) }
				}
		
				from (p.projectDir.toString() + "/data") {
					into { getZipPath(p) + "/data" }
					exclude 'build.xml' // associated with language modules (dev use only)
				}
				
				from (BIN_REPO + '/' + getZipPath(p) + "/data") {
					into { getZipPath(p) + "/data" }
				}
		
				from (p.projectDir.toString() + "/ghidra_scripts") {
					exclude 'bin/'
					into { getZipPath(p) + "/ghidra_scripts" }
				}
				
				from (p.projectDir.toString() + "/build/LICENSE.txt") {
					into { getZipPath(p) }
				}
	
				// handle special case where modules build data artifacts into the build dir
				from (p.projectDir.toString() + "/build/data") {
					into {getZipPath(p) + "/data" }
				}
				
				// External Libraries
				gradle.taskGraph.whenReady { taskGraph ->
					List<String> externalPaths = getExternalDependencies(p)
					externalPaths.each { path ->
						from (path) {
							into { getZipPath(p) + "/lib" }
						}
					}
				}		
				
				/////////////////
				// SOURCE FOR BUILD
				// 
				// Some projects require that we provide source that can be built (makefiles,
				// gradle build files, c-code, etc...).  If a project has a task for that 
				// purpose, execute it here.
				//
				// Note the 'afterEvaluate' call - this must be done so the zip task in the 
				// subproject is added to the task graph before the 'dependsOn' clause is
				// executed. If we don't do this, that dependsOn relationship won't be respected
				// and the subproject zip task won't be executed.
				/////////////////
				p.tasks.each { t ->
					if (t.name == "zipBuildableSource") {
						assembleCommon.dependsOn {t}
						from (t) {
							into getZipPath(p)
						}
					}
				}
			}
		}
	}

	/////////////////////////////
	// COPY all GPL code
	/////////////////////////////
	from (ROOT_PROJECT_DIR + "/GPL") {
		exclude "*/bin"
		exclude "*/build"
		into "GPL"
	}	
	
	//////////////////////////////
	// LGPL SOURCE INCLUSION
	//////////////////////////////
	from ("${rootProject.ext.BIN_REPO}/ExternalLibraries/libsSrc/jcalendar-1.3.3.zip" ) {
		into "GPL/librarySourceForLGPL"
	}
	
	//////////////////////////////
	// LICENSE SUPPORT
	//////////////////////////////
	with getMultiRepoCopySpec( "licenses", "licenses" ) 
	from (ROOT_PROJECT_DIR) {
		include "LICENSE.txt"
	}

	
	//////////////////////////////
	// LAUNCH SUPPORT
	//////////////////////////////
	from (project("LaunchSupport").jar) {
		into "support"
	}
	
	//////////////////////////////
	// SKELETON PROJECT
	//////////////////////////////
	from (ROOT_PROJECT_DIR + "/GhidraBuild/Skeleton") {
		exclude 'bin'
		exclude 'build'
		exclude 'ghidra_scripts/bin/'
		exclude '.classpath'
		exclude '.project'
		rename "buildTemplate.gradle", "build.gradle"
		into "Extensions/Ghidra/Skeleton"
	}
				
	//////////////////////////////
	// ECLIPSE SUPPORT
	//////////////////////////////
	from (BIN_REPO + "/GhidraBuild/EclipsePlugins/GhidraDev") {
		include 'GhidraDev*.zip'
		into "Extensions/Eclipse/GhidraDev/"
	}
	from (ROOT_PROJECT_DIR + "/GhidraBuild/EclipsePlugins/GhidraDev/GhidraDevPlugin") {
		include 'GhidraDev_README.html'
		into "Extensions/Eclipse/GhidraDev/"
	}
	
	/////////////////
	// DB DIR LOCK FILE
	//
	// This lock file must be created to prevent users from modifying script files.  We 
	// create it here, copy it to the archive, then delete it.
	/////////////////
	File dbLockFile = file('Ghidra/.dbDirLock')

	from ('Ghidra') {
		include '.dbDirLock'
		into 'Ghidra'
		
		doFirst {
			dbLockFile.withWriter { out ->
				out.writeLine("lock file to prevent modification of core ghidra scripts")
			}
		}
		doLast {
			dbLockFile.delete()
		}
	}
	
	/////////////////
	// SUPPORT SCRIPTS
	/////////////////
	from (ROOT_PROJECT_DIR + "/Ghidra/RuntimeScripts/Common/support") {
		into "support"
	}
	
	/////////////////
	// SERVER SCRIPTS
	/////////////////
	from (ROOT_PROJECT_DIR + "/Ghidra/RuntimeScripts/Common/server") {
		into "server"
	}
	
	/////////////////
	// APPLICATION PROPERTIES
	/////////////////
	from (ROOT_PROJECT_DIR + "/Ghidra/application.properties") {
		def buildDateFile = file("$buildDir/build_date.properties")
		doFirst {
			file("$buildDir").mkdirs()
			buildDateFile.text = ""
			if (rootProject.BUILD_DATES_NEEDED) {
				buildDateFile.text += "application.build.date=" + rootProject.BUILD_DATE + "\n"
				buildDateFile.text += "application.build.date.short=" + rootProject.BUILD_DATE_SHORT + "\n"
			}
		}
		doLast {
			delete buildDateFile
		}
		into "Ghidra"
		filter (ConcatFilter, prepend: buildDateFile)
	}
		
	/////////////////
	// GLOBALS
	/////////////////
	subprojects { p ->
	
		if (!isExtension(p)) {
					
			// First get a list of all files that are under 'src/global'.	
			FileTree fileTree = getGlobalFiles(p)
					
			// Now loop over each one, copying it into the zip we're creating.  Each will be placed
			// at the root level, starting with the first folder AFTER 'src/global/'.  
			//
			// eg: 	If the file is '/Ghidra/Configurations/Common/src/global/docs/hello.html', then
			// 		the file in the zip will be at /docs/hello.html
			//
			fileTree.each { File file ->
				String filePath = getGlobalFilePathSubDirName(file)
				from (file) {
					into filePath
				}
			}
		}
	}
	
	/////////////////
	// GHIDRA DOCS
	/////////////////
	with configure(getMultiRepoCopySpec( "GhidraDocs", "docs" )) {
		exclude "**/build.gradle"
		exclude "**/build/**"
	}
			
	/////////////////
	// IDA PRO
	/////////////////
	from (ROOT_PROJECT_DIR + "/GhidraBuild/IDAPro") {
		into "Extensions/IDAPro"
		exclude "certification.manifest"
		exclude ".classpath"
		exclude ".project"
	}
	
	// Special Case: The xmlldr.py file needs to be in two places in the distribution, so 
	// after copying over the full IDA directory structure above, do an additional copy
	// of this one specific file to the 'plugins' folder.
	from (ROOT_PROJECT_DIR + "/GhidraBuild/IDAPro/Python/6xx/loaders/xmlldr.py") {
		into "Extensions/IDAPro/Python/6xx/plugins"
	}
	
	/////////////////
	// JAVADOCS
	/////////////////
	from (zipJavadocs) {
		into 'docs'
	}
}

/*********************************************************************************
 * COMMON - NATIVES
 *
 * Creates copy tasks for each platform, to move native files to the
 * distribution folder.
 *
 * Input:	Native executables created during the build phase. It is assumed that
 *			these have already been built and are located in the proper location.
 *
 *********************************************************************************/
project.OS_NAMES.each { platform ->
	task ("assemble$platform", type: Copy ) { 
	
		// Running the 'assemble' gradle task will run all compilation tasks for all languages. So 
		// this must be run before executing this task.
		dependsOn {subprojects.assemble} 
		
		// delete the gradle ziptree temp directory because of gradle bug not cleaning up its temp files.
		delete rootProject.file("build/tmp/expandedArchives")
		
		// get the natives for the specified platform
		subprojects { sub ->
			dependsOn { sub.tasks.findAll { it.name == "buildNatives_$platform" } }
		}
		
		group 'private'
		description "Copies the platform-dependent files/folders to the distribution location."
		destinationDir file(DISTRIBUTION_DIR.getPath() + "/" +  ZIP_DIR_PREFIX)
				
		// Make sure that we don't try to copy the same file with the same path into the
		// zip (this can happen!)
		duplicatesStrategy 'exclude'
		
		String ROOT_PROJECT_DIR = rootProject.projectDir.toString()
	
		gradle.taskGraph.whenReady {
			
			/////////////////
			// GHIDRA PROJECTS
			/////////////////
			subprojects { p ->		
				if (isGhidra(p)) {
									
					// the getZipPath calls here are not in closures because we are already in a taskGraph.whenReady closure
					from (p.projectDir.toString() + "/build/os/$platform") {
						exclude '*.lib'
						exclude '*.exp'
						into getZipPath(p)	+ "/os/$platform"
					}
					from (p.projectDir.toString() + "/os/$platform") {
						into getZipPath(p) + "/os/$platform"
					}
					
					// Special case for Win64 build as we have to also include the Win32 binaries
					// in the final zip.
					if (platform == "win64") {
						from (p.projectDir.toString() + "/build/os/win32") {
							into getZipPath(p)	+ "/os/win32"
						}
					}
				}			
			}
			
			/////////////////
			// SUPPORT SCRIPTS
			/////////////////
			if( isLinux(platform) || isMac(platform) ) {
			    with getMultiRepoCopySpec( "Ghidra/RuntimeScripts/Linux/support", "support" ) 
			}
			if( isWindows(platform) ) {
			    with getMultiRepoCopySpec( "Ghidra/RuntimeScripts/Windows/support", "support" ) 
			}
			
			/////////////////
			// SERVER SCRIPTS
			/////////////////
			if( isLinux(platform) || isMac(platform) ) {
				from (ROOT_PROJECT_DIR + "/Ghidra/RuntimeScripts/Linux/server") {
					into "server"
				}
			}
			if( isWindows(platform) ) {
				from (ROOT_PROJECT_DIR + "/Ghidra/RuntimeScripts/Windows/server") {
					into "server"
				}
			}
			
			/////////////////
			// GHIDRA RUN SCRIPT
			/////////////////		
			if( isLinux(platform) || isMac(platform) ) {
				from (ROOT_PROJECT_DIR + "/Ghidra/RuntimeScripts/Linux") {
					include "ghidraRun"
				}
			}
			if( isWindows(platform) ) {
				from (ROOT_PROJECT_DIR + "/Ghidra/RuntimeScripts/Windows") {
					include "ghidraRun.bat"
				}
			}	
		}
	}
}

/*********************************************************************************
 * SOURCE - SUBPROJECTS
 *
 * Creates tasks for each project that will generate a zip file containing
 * all source files in that project.
 *
 * Input:	Everything under the 'src/' folder.
 *
 * Output:	A zip file of the form "source-<project name>.zip".
 *
 * --------------------------------------------------------------------------------
 *
 * Note: 	These tasks are not intended to be called directly (though they may).  
 *	 		They are utilized by the 'zipAllSource' task (defined below).
 *
 * Note2:	This task MUST be placed above the zipAllSource task.
 *********************************************************************************/
task zipSourceSubprojects {
	
	subprojects { p ->
	
		task zipSourceSubproject (type: Zip) { t ->
						
			// Define some metadata about the zip (name, location, version, etc....)
			t.group 'private'
			t.description "Creates the source zips for each module  [gradleScripts/distribution.gradle]"
			t.archiveName p.name + "-src.zip"
			t.destinationDir file(p.projectDir.path + "/build/tmp/src")
					
			// Without this we get duplicate files but it's unclear why. It doesn't seem that this
			// task is being executed multiple times, and sourceSets.main.java contains the 
			// correct elements. Whatever the cause, this fixes the problem.
			duplicatesStrategy 'exclude'
			
			from sourceSets.main.java
		}
	}
}


/*********************************************************************************
 * SOURCE - COMMON
 *
 * Copies source zips for all common projects to the distribution folder.
 *
 **********************************************************************************/
task assembleSourceCommon (type: Copy) {

	group 'private'
	description "Copies source zips for all common projects to the distribution folder"
	destinationDir DISTRIBUTION_DIR
	
	// Loop over all projects and all tasks.  We need to find all the dynamically-created tasks
	// that were generated by the createSourceZipTasksForProjects task.  Each of these is called: 
	//
	// "zipSource"
	//
	// The individual zip tasks are unique because the task name is relative to the project it
	// is a member of.
	allprojects.tasks.each { tasks ->
	
		tasks.each { task ->
		
			if (task.name.contains("zipSourceSubproject")) {
			
				if (isGhidra(task.project) && !isExtension(task.project)) {
			
					// Ensure that this task won't run until the task which generates the project
					// zip file is run.
					assembleSourceCommon.dependsOn(task)
										
					// Set the copy task info to grab all output from the given task, and place it at
					// the location just determined.
					// compute into clause in closure for delayed evaluation. See note at top of file
					assembleSourceCommon.from (task) {
						into  { ZIP_DIR_PREFIX + "/" +  getZipPath(task.project) + "/lib" }
					}
				}
			}
		}
	}

	// This forces the task that creates the project zip files to be evaluated first.
	dependsOn (zipSourceSubprojects)
}


/*********************************************************************************
 * CONTRIBS
 *
 * Zips up contribs and places them in the distribution folder.
 *
 * --------------------------------------------------------------------------------
 * Note: Each individual contrib should extend these tasks in their own build 
 *	 scripts to provide additional functionality.
 *
 **********************************************************************************/
subprojects { p ->
	
	if (isExtension(p)) {	
	
		task zipExtensions (type: Zip) {
				
			it.group 'private'
			it.description "Creates a zip file for an extension module.  [gradleScripts/distribution.gradle]"
			it.archiveName "${ZIP_NAME_PREFIX}_${p.name}.zip"
			it.destinationDir DISTRIBUTION_DIR
			
			// Make sure that we don't try to copy the same file with the same path into the
			// zip (this can happen!)
			duplicatesStrategy 'exclude'
			
			// Exclude any files that contain "delete.me" in the path; this is a convention we used
			// at one time that should be removed.
			exclude "**/delete.me"
			
			// This filtered property file copy must appear before the general 
			// copy to ensure that it is prefered over the unmodified file		
			File propFile = new File(p.projectDir, "extension.properties")
			from (propFile) {
				String version = "${rootProject.RELEASE_VERSION}"
				filter (ReplaceTokens, tokens: [extversion: version])
				into { getBaseProjectName(p) }
			}
			
			if (!isEmptyProject(p)) {
				from (p.jar) {
					// use closures for getting zip path to delay evaluation. See note at top of 
					//file.
					into { getBaseProjectName(p) + "/lib" }
				}
			}
			
			from (p.projectDir) { f ->
				exclude 'build/**'
				exclude 'build.gradle'
				exclude 'certification.manifest'
				exclude "*.project"
				exclude "*.classpath"
				exclude 'dist/**'
				exclude '.gradle/**/*'
				exclude 'ghidra_scripts/bin/'
				exclude 'bin/**'
				exclude 'src/**'
				exclude 'test/**'
				exclude 'data/build.xml'
				exclude 'developer_scripts'
				
				// general place where extension modules can put files that won't get 
				// included in standard zip
				exclude 'contribZipExclude/**'			
				
				into { getBaseProjectName(p) }
			}
						
			/////////////////
			// SOURCE
			/////////////////
			from (tasks["zipSourceSubproject"]) {
				into { getBaseProjectName(p) + "/lib" }
			}.dependsOn(zipSourceSubprojects)
			
			
			/////////////////
			// EXTERNAL LIBS
			/////////////////
			gradle.taskGraph.whenReady { taskGraph ->
				List<String> externalPaths = getExternalDependencies(p)
				externalPaths.each { path ->
					from (path) {
						into { getBaseProjectName(p) + "/lib" }
					}
				}
			}
			
			/////////////////
			// GLOBALS
			/////////////////		
			if (isExtension(p)) {
							
				// First get a list of all files that are under 'src/global'.	
				FileTree fileTree = getGlobalFiles(p)
					
				// Now loop over each one, copying it into the zip we're creating.  Each will be placed
				// at the root level, starting with the first folder AFTER 'src/global/'.  
				//
				// eg: 	If the file is '/Ghidra/Configurations/Common/src/global/docs/hello.html', then
				// 		the file in the zip will be at /docs/hello.html
				//
				fileTree.each { File file ->
					String filePath = getGlobalFilePathSubDirName(file)
					from (file) {
						into filePath
					}
				}
			}
			
			// handle special case where modules build data artifacts into the build dir
			from (p.projectDir.toString() + "/build/data") {
				into { getBaseProjectName(p) + "/data" }
			}
			
			/////////////////
			// NATIVES
			/////////////////		
			project.OS_NAMES.each { platform ->
																	
				from (p.projectDir.toString() + "/os/$platform") {
					into  { getBaseProjectName(p) + "/os/$platform"	}
				}
			}
		}	
	}
}

/*********************************************************************************
 * 
 * Creates a directory of extensions that are excluded from the installation zip.
 *
 **********************************************************************************/
task createInstallationExcludes(type: Copy) {
	
	group 'private'
	description "Creates directory of extensions that are excluded from the installation zip (does not clean up artifacts) [gradleScripts/distribution.gradle]"
	
	destinationDir new File(DISTRIBUTION_DIR.getPath(), "excluded_extensions")
	
	// Make sure that we don't try to copy the same file with the same path.
	duplicatesStrategy 'exclude'
			
	subprojects { sub ->
		afterEvaluate {
			boolean includeExtension = sub.findProperty("includeExtensionInInstallation") ?: false;
			boolean extendsFromProject = sub.hasProperty("extendsFromProject");
			if (isExtension(sub) && !includeExtension && !extendsFromProject) {
				from (sub.zipExtensions)
			}
		}	
	} 
}

import groovy.io.FileType
import java.nio.file.Path
import java.nio.file.Files
import java.nio.file.attribute.FileTime
import java.time.OffsetDateTime
import java.util.concurrent.TimeUnit
import java.time.ZoneId

/*********************************************************************************
 * Update sla file timestamps to current time plus timeOffsetMinutes value.
 * 
 * distributionDirectoryPath - Contains files/folders used by gradle zip task.
 * timeOffsetMinutes - Number of minutes to increase sla file timestamp.
 * 
**********************************************************************************/
def updateSlaFilesTimestamp(String distributionDirectoryPath, int timeOffsetMinutes) {
	logger.debug("updateSlaFilesTimestamp: distributionDirectoryPath = '$distributionDirectoryPath' and timeOffsetMinutes = '$timeOffsetMinutes',")

	if (timeOffsetMinutes <= 0) {
		throw new GradleException("updateSlaFilesTimestamp: timeOffsetMinutes value of '$timeOffsetMinutes' is invalid.")
	}

	// path to sla files in distribution directory
	def directory = new File(distributionDirectoryPath)

	if (!directory.exists()) {
		throw new GradleException("updateSlaFilesTimestamp: path to sla files '$directory' does not exist.")
	}

	OffsetDateTime dt = OffsetDateTime.now(ZoneId.of("UTC")).plusMinutes(timeOffsetMinutes);

	int numFilesAdded = 0;

	// For each .sla file, update timestamp attributes.
	directory.eachFileRecurse(FileType.FILES) { file ->
		if(file.name.endsWith('sla')) {
			Files.setAttribute(file.toPath(), "creationTime", FileTime.from(dt.toEpochSecond(), TimeUnit.SECONDS ));
			Files.setAttribute(file.toPath(), "lastModifiedTime", FileTime.from(dt.toEpochSecond(), TimeUnit.SECONDS ));
			Files.setAttribute(file.toPath(), "lastAccessTime", FileTime.from(dt.toEpochSecond(), TimeUnit.SECONDS ));

			logger.debug("updateSlaFilesTimestamp: Updating $file.name with timestamp attributes of " + new Date(file.lastModified()))

			numFilesAdded++
		}
	}

	println "updateSlaFilesTimestamp: Updated timestamps to $numFilesAdded .sla files."
}

/*********************************************************************************
 * 
 * Adds decompiler pdf documentation to zip. First, the task Decompiler:buildDecompilerDocumentationPdfs
 * creates the pdfs. Then, the pdfs to be added are specified. If the pdf file does does not exist, 
 * (ex: there was an error or wrong platform) the zip task continues.
 *
 **********************************************************************************/
def addDecompilerPdfsToZip (Task task) {

	task.dependsOn ':Decompiler:buildDecompilerDocumentationPdfs' // creates decompiler pdf files

	def decompilerPdfZipPath = ZIP_DIR_PREFIX + "/docs/languages/"
	def appProject = subprojects.find { project -> 'Decompiler' == project.name }
	
	// Add decompiler pdf files to zip. If the pdf files do not exist during execution time 
	// (if there was an error or wrong platform), the zip task will move on.
	appProject.getTasksByName('buildDecompilerDocumentationPdfs', true).outputs.each { output ->
		output.files.each { file ->
			if (file.name.endsWith("pdf")) {
				logger.debug("$task.name: Adding Decompiler documentation (if it exists) $file.name to $decompilerPdfZipPath")
				task.from (file) {
					into {
						decompilerPdfZipPath
					}
				}
			}
		}
	}
}

/*********************************************************************************
 * 
 * Creates the local installation zip.
 *
 **********************************************************************************/
task createLocalInstallationZip(type: Zip) { t ->
	
	group 'private'
	description "Creates local installation zip (does not clean up artifacts) [gradleScripts/distribution.gradle]"
	
	dependsOn assembleCommon
	dependsOn assembleSourceCommon
	dependsOn "assemble$currentPlatform"

	addDecompilerPdfsToZip(t)

	archiveName "${ZIP_NAME_PREFIX}_${currentPlatform}.zip"
	destinationDir DISTRIBUTION_DIR
	
	// Make sure that we don't try to copy the same file with the same path.
	duplicatesStrategy 'exclude'

	from (DISTRIBUTION_DIR.getPath() + "/" +  ZIP_DIR_PREFIX) {
		into ZIP_DIR_PREFIX
	}
			
	subprojects { sub ->
		afterEvaluate {
			boolean includeExtension = sub.findProperty("includeExtensionInInstallation") ?: false;
			if (isExtension(sub) && includeExtension) {
				from (sub.zipExtensions) {
					into  {
						ZIP_DIR_PREFIX + "/Extensions/Ghidra"
					}
				}
			}
		}	
	} 
	
	doFirst {
		// We always want the extensions directory to exist in the zip, even if there's nothing
		// installed there.
		new File( DISTRIBUTION_DIR.getPath() + "/" + ZIP_DIR_PREFIX + "/Ghidra/Extensions").mkdirs()

		// The dependent tasks copy the sla and slaspec files into "extractTo/<release name>/ghidra/"
		// and then later to "extractTo/<release name>/dist/", which this zip task compresses. The copy 
		// tasks do not preserve the file modification times. If slaspec timestamp > sla timestamp, 
		// a sleigh compile is triggered on Ghidra app startup. Calling this method before files are zipped
		// will ensure the zip archive has sla files newer than slaspec. Give new timestamp of now plus 
		// two minutes.
		updateSlaFilesTimestamp(DISTRIBUTION_DIR.getPath(), 2)
	}
	
	doLast {
		delete file(DISTRIBUTION_DIR.getPath() + "/" + ZIP_DIR_PREFIX)
	}
}

/*********************************************************************************
 * 
 * Creates everything needed for the final distribution, for the local platform 
 * only.
 *
 **********************************************************************************/
task createLocalInstallation() {

	group 'private'
	description "Creates local installation (no extraction) [gradleScripts/distribution.gradle]"

	dependsOn createInstallationExcludes
	dependsOn createLocalInstallationZip
	
	doLast {
		
		// Delete any unnecessary artifacts used to create the final zip.
		subprojects { sub ->
			if (isExtension(sub)) {
				delete zipExtensions
			}		
		}	
	}
}

/*********************************************************************************
 * 
 * Creates the multi-platform installation zip.
 *
 **********************************************************************************/
task createMultiPlatformInstallationZip(type: Zip) { t ->
	
	group 'private'
	description "Creates multi-platform installation zip (does not clean up artifacts) [gradleScripts/distribution.gradle]"
	
	dependsOn ":assembleCommon"
	dependsOn ":assemblewin32"
	dependsOn ":assemblewin64"
	dependsOn ":assemblelinux64"
	dependsOn ":assembleosx64"
	dependsOn ":assembleSourceCommon"

	addDecompilerPdfsToZip(t)

	archiveName "${ZIP_NAME_PREFIX}.zip"
	destinationDir DISTRIBUTION_DIR

	// Make sure that we don't try to copy the same file with the same path.
	duplicatesStrategy 'exclude'

	from (DISTRIBUTION_DIR.getPath() + "/" +  ZIP_DIR_PREFIX) {
		into ZIP_DIR_PREFIX
	}
			
	subprojects { sub ->
		afterEvaluate {
			boolean includeExtension = sub.findProperty("includeExtensionInInstallation") ?: false;
			if (isExtension(sub) && includeExtension) {
				from (sub.zipExtensions) {
					into  {
						ZIP_DIR_PREFIX + "/Extensions/Ghidra"
					}
				}
			}
		}	
	} 
	
	doFirst {
		// We always want the extensions directory to exist in the zip, even if there's nothing
		// installed there.
		new File( DISTRIBUTION_DIR.getPath() + "/" + ZIP_DIR_PREFIX + "/Ghidra/Extensions").mkdirs()

		// The dependent tasks copy the sla and slaspec files into "extractTo/<release name>/ghidra/"
		// and then later to "extractTo/<release name>/dist/", which this zip task compresses. The copy 
		// tasks do not preserve the file modification times. If slaspec timestamp > sla timestamp, 
		// a sleigh compile is triggered on Ghidra app startup. Calling this method before files are zipped
		// will ensure the zip archive has sla files newer than slaspec. Give new timestamp of now plus 
		// two minutes.
		updateSlaFilesTimestamp(DISTRIBUTION_DIR.getPath(), 2)
	}
	
	doLast {
		delete file(DISTRIBUTION_DIR.getPath() + "/" + ZIP_DIR_PREFIX)
	}
}

/*********************************************************************************
 * 
 * Creates everything needed for the final distribution, for all platforms.
 *
 **********************************************************************************/
task createMultiPlatformInstallation() {

	group 'private'
	description "Creates multi-platform installation (no extraction) [gradleScripts/distribution.gradle]"

	dependsOn createInstallationExcludes
	dependsOn createMultiPlatformInstallationZip
	
	doLast {
		
		// Delete any unnecessary artifacts used to create the final zip.
		subprojects { sub ->
			if (isExtension(sub)) {
				delete zipExtensions
			}		
		}	
	}
}

/*********************************************************************************
 * 
 * Builds the Ghidra installation zip file for the local platform
 *
 **********************************************************************************/
task buildGhidra() {
	dependsOn createLocalInstallationZip
	
	doLast {
		
		// Delete any unnecessary artifacts used to create the final zip.
		subprojects { sub ->
			if (isExtension(sub)) {
				delete zipExtensions
			}		
		}	
	}
}

/*********************************************************************************
 * Returns true if the given project is an extension.
 *********************************************************************************/
def isExtension(Project p) {
	return p.projectDir.toString().contains(File.separator + "Extensions" + File.separator)
}

/*********************************************************************************
 * Returns true if the given project is in Ghidra.
 *********************************************************************************/
def isGhidra(Project p) {
	return p.projectDir.toString().contains(File.separator + "Ghidra" + File.separator) ||
		p.projectDir.toString().contains(File.separator + "GPL" + File.separator)
}

/*********************************************************************************
 * Returns a FileTree of all files in the given project that are under the
 * '/src/global' folder, if there is one.
 *********************************************************************************/
FileTree getGlobalFiles(Project project) {

	FileTree fileTree = project.fileTree('src/global') {
		include '**/*'
	}
	
	return fileTree
}

/*********************************************************************************
 *  Takes the given file and returns a string representing the file path with everything
 *	up-to and including 'src/global' removed, as well as the filename. 
 *	
 *	eg: 	If the file path is '/Ghidra/Configurations/Common/src/global/docs/hello.html', 
 *			the returned string will be at /docs
 *
 *	Note: 	We have to use 'File.separator' instead of a slash ('/') because of how 
 * 			windows/unix handle slashes ('/' vs. '\'). We only need to do this in cases where we're
 *			using java string manipulation libraries (eg String.replace); Gradle already
 *			understands how to use the proper slash.
*********************************************************************************/
String getGlobalFilePathSubDirName(File file) {

	// First strip off everything before 'src/global/ in the file path.
	def slashIndex = file.path.indexOf('src' + File.separator + 'global')
	String filePath = file.path.substring(slashIndex);
					
	// Now remove 'src/global/' from the string.
	filePath = filePath.replace('src' + File.separator + 'global' + File.separator, "");
					
	// Now we need to strip off the filename itself, which we do by finding the last
	// instance of a slash ('/') in the string.  
	//
	// Note that it's possible there is no slash (all we have is a filename), meaning 
	// this file will be placed at the root level.
	//
	slashIndex = filePath.lastIndexOf(File.separator)
	if (slashIndex != -1) {
		filePath = filePath.substring(0, slashIndex+1) // +1 for the slash
	}	
	else {
		filePath = ""
	}
	
	return filePath 
}

/*********************************************************************************
 * Checks the project source sets to see if there are any source files and/or
 * resources.
*********************************************************************************/
def isEmptyProject (Project project) {
	def empty = true
	project.sourceSets.each { ss ->				
		if (ss.allSource.isEmpty() == false) {
			empty = false
		}
	}
	
	return empty
}

/*********************************************************************************
 * Produces a CopySpec on the rootProject which facilitates the copying of all
 * srcFolder contents to a specified destFolder within the distribution.
 * All folder names are relative to the project root (e.g., GhidraBuild/BuildFiles).
 * The resulting CopySpec should be specified using the "with" declaration
 * for a Copy task or other similar tasks.
*********************************************************************************/
def getMultiRepoCopySpec(String srcFolder, String destFolder) {
	return rootProject.copySpec {
		from rootProject.projectDir.path + "/.."
		include "*/$srcFolder/**"
		exclude "**/certification.manifest"
		exclude "**/certification.local.manifest"
		exclude "**/.project"
		exclude "**/.classpath"
		exclude "**/build"
	   
		eachFile {
			path = path.replaceAll(".*/$srcFolder", destFolder)
		}
		includeEmptyDirs = false
	}
}

/****************************************************************************
 * The following block of code changes the output directory for native builds
 * to <projectDir>/build/os/<platform>/<executable>
 ****************************************************************************/
gradle.taskGraph.whenReady {
	subprojects { p->
		tasks.withType(LinkExecutable).each { t ->
			File f = t.linkedFile.getAsFile().get()
			String filename = f.getName()
			NativePlatform platform = t.targetPlatform.get()
			String osName = platform.getName()
			t.linkedFile = p.file("build/os/${osName}/$filename")
		}
		tasks.withType(LinkSharedLibrary).each { t ->
			File f = t.linkedFile.getAsFile().get()
			String filename = f.getName()
			NativePlatform platform = t.targetPlatform.get()
			String osName = platform.getName()
			t.linkedFile = p.file("build/os/${osName}/$filename")
		}
	}
}