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ScriptLoader.java
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ScriptLoader.java
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/**
* This file is part of Skript.
*
* Skript is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Skript is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Skript. If not, see <http://www.gnu.org/licenses/>.
*
* Copyright Peter Güttinger, SkriptLang team and contributors
*/
package ch.njol.skript;
import java.io.File;
import java.io.FileFilter;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.ArrayBlockingQueue;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.Callable;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.regex.Matcher;
import org.bukkit.Bukkit;
import org.bukkit.Server;
import org.bukkit.event.Event;
import org.eclipse.jdt.annotation.Nullable;
import ch.njol.skript.aliases.Aliases;
import ch.njol.skript.aliases.ScriptAliases;
import ch.njol.skript.bukkitutil.CommandReloader;
import ch.njol.skript.classes.ClassInfo;
import ch.njol.skript.command.CommandEvent;
import ch.njol.skript.command.Commands;
import ch.njol.skript.command.ScriptCommand;
import ch.njol.skript.config.Config;
import ch.njol.skript.config.EntryNode;
import ch.njol.skript.config.Node;
import ch.njol.skript.config.SectionNode;
import ch.njol.skript.config.SimpleNode;
import ch.njol.skript.effects.Delay;
import ch.njol.skript.events.bukkit.PreScriptLoadEvent;
import ch.njol.skript.lang.Condition;
import ch.njol.skript.lang.Conditional;
import ch.njol.skript.lang.Expression;
import ch.njol.skript.lang.Loop;
import ch.njol.skript.lang.ParseContext;
import ch.njol.skript.lang.SelfRegisteringSkriptEvent;
import ch.njol.skript.lang.SkriptEvent;
import ch.njol.skript.lang.SkriptEventInfo;
import ch.njol.skript.lang.SkriptParser;
import ch.njol.skript.lang.Statement;
import ch.njol.skript.lang.Trigger;
import ch.njol.skript.lang.TriggerItem;
import ch.njol.skript.lang.TriggerSection;
import ch.njol.skript.lang.While;
import ch.njol.skript.lang.function.Function;
import ch.njol.skript.lang.function.FunctionEvent;
import ch.njol.skript.lang.function.Functions;
import ch.njol.skript.localization.Language;
import ch.njol.skript.localization.Message;
import ch.njol.skript.localization.PluralizingArgsMessage;
import ch.njol.skript.log.CountingLogHandler;
import ch.njol.skript.log.ErrorDescLogHandler;
import ch.njol.skript.log.LogEntry;
import ch.njol.skript.log.ParseLogHandler;
import ch.njol.skript.log.RetainingLogHandler;
import ch.njol.skript.log.SkriptLogger;
import ch.njol.skript.registrations.Classes;
import ch.njol.skript.registrations.Converters;
import ch.njol.skript.util.Date;
import ch.njol.skript.util.ExceptionUtils;
import ch.njol.skript.util.Task;
import ch.njol.skript.variables.TypeHints;
import ch.njol.skript.variables.Variables;
import ch.njol.util.Callback;
import ch.njol.util.Kleenean;
import ch.njol.util.NonNullPair;
import ch.njol.util.StringUtils;
import ch.njol.util.coll.CollectionUtils;
/**
* @author Peter Güttinger
*/
final public class ScriptLoader {
private ScriptLoader() {}
private final static Message m_no_errors = new Message("skript.no errors"),
m_no_scripts = new Message("skript.no scripts");
private final static PluralizingArgsMessage m_scripts_loaded = new PluralizingArgsMessage("skript.scripts loaded");
@Nullable
public static Config currentScript = null;
/**
* use {@link #setCurrentEvent(String, Class...)}
*/
@Nullable
private static String currentEventName = null;
@Nullable
public static String getCurrentEventName() {
return currentEventName;
}
/**
* use {@link #setCurrentEvent(String, Class...)}
*/
@Nullable
private static Class<? extends Event>[] currentEvents = null;
/**
* Call {@link #deleteCurrentEvent()} after parsing
*
* @param name
* @param events
*/
@SafeVarargs
public static void setCurrentEvent(final String name, final @Nullable Class<? extends Event>... events) {
currentEventName = name;
currentEvents = events;
hasDelayBefore = Kleenean.FALSE;
}
public static void deleteCurrentEvent() {
currentEventName = null;
currentEvents = null;
hasDelayBefore = Kleenean.FALSE;
}
@Nullable
private static SkriptEvent currentSkriptEvent;
public static void setCurrentSkriptEvent(SkriptEvent skriptEvent) {
currentSkriptEvent = skriptEvent;
}
@Nullable
public static SkriptEvent getCurrentSkriptEvent() {
return currentSkriptEvent;
}
public static void deleteCurrentSkriptEvent() {
currentSkriptEvent = null;
}
public static List<TriggerSection> currentSections = new ArrayList<>();
public static List<Loop> currentLoops = new ArrayList<>();
final static HashMap<String, String> currentOptions = new HashMap<>();
/**
* must be synchronized
*/
private final static ScriptInfo loadedScripts = new ScriptInfo();
public static Kleenean hasDelayBefore = Kleenean.FALSE;
public static class ScriptInfo {
public int files, triggers, commands, functions;
/**
* Command names. They're collected to see if commands need to be
* sent to clients on Minecraft 1.13 and newer. Note that add/subtract
* don't operate with command names!
*/
public final Set<String> commandNames;
public ScriptInfo() {
commandNames = new HashSet<>();
}
public ScriptInfo(final int numFiles, final int numTriggers, final int numCommands, final int numFunctions) {
files = numFiles;
triggers = numTriggers;
commands = numCommands;
functions = numFunctions;
commandNames = new HashSet<>();
}
/**
* Copy constructor.
* @param o
*/
public ScriptInfo(ScriptInfo o) {
files = o.files;
triggers = o.triggers;
commands = o.commands;
functions = o.functions;
commandNames = new HashSet<>(o.commandNames);
}
public void add(final ScriptInfo other) {
files += other.files;
triggers += other.triggers;
commands += other.commands;
functions += other.functions;
}
public void subtract(final ScriptInfo other) {
files -= other.files;
triggers -= other.triggers;
commands -= other.commands;
functions -= other.functions;
}
@Override
public String toString() {
return "ScriptInfo{files=" + files + ",triggers=" + triggers + ",commands=" + commands + ",functions:" + functions + "}";
}
}
/**
* Command names by script names. Used to figure out when commands need
* to be re-sent to clients on MC 1.13+.
*/
private static final Map<String, Set<String>> commandNames = new HashMap<>();
// private final static class SerializedScript {
// public SerializedScript() {}
//
// public final List<Trigger> triggers = new ArrayList<Trigger>();
// public final List<ScriptCommand> commands = new ArrayList<ScriptCommand>();
// }
private static String indentation = "";
// Load scripts in separate (one) thread
static final BlockingQueue<Runnable> loadQueue = new ArrayBlockingQueue<>(20, true);
static final Thread loaderThread;
static boolean loadAsync; // See below
/**
* Checks if scripts are loaded in separate thread. If true,
* following behavior should be expected:
* <ul>
* <li>Scripts are still unloaded and enabled in server thread
* <li>When reloading a script, old version is unloaded <i>after</i> it has
* been parsed, immediately before it has been loaded
* <li>When reloading all scripts, scripts that were removed are disabled
* after everything has been reloaded
* <li>Script infos returned by most methods are inaccurate
* @return If main thread is not blocked when loading.
*/
public static boolean isAsync() {
return loadAsync;
}
/**
* All loaded script files.
*/
@SuppressWarnings("null")
static final Set<File> loadedFiles = Collections.synchronizedSet(new HashSet<>());
@SuppressWarnings("null") // Collections methods don't return nulls, ever
public static Collection<File> getLoadedFiles() {
return Collections.unmodifiableCollection(loadedFiles);
}
/**
* All disabled script files.
*/
@SuppressWarnings("null")
static final Set<File> disabledFiles = Collections.synchronizedSet(new HashSet<>());
@SuppressWarnings("null")
public static Collection<File> getDisabledFiles() {
return Collections.unmodifiableCollection(disabledFiles);
}
/**
* Filter for disabled scripts & folders.
*/
private final static FileFilter disabledFilter = new FileFilter() {
@Override
public boolean accept(final @Nullable File f) {
return f != null && (f.isDirectory() || StringUtils.endsWithIgnoreCase("" + f.getName(), ".sk")) && f.getName().startsWith("-");
}
};
private static void updateDisabledScripts(Path path) {
disabledFiles.clear();
try {
Files.walk(path)
.map(Path::toFile)
.filter(disabledFilter::accept)
.forEach(disabledFiles::add);
} catch (IOException e) {
e.printStackTrace();
}
}
// Initialize and start load thread
static {
loaderThread = new AsyncLoaderThread();
loaderThread.start();
}
private static class AsyncLoaderThread extends Thread {
public AsyncLoaderThread() { }
@Override
public void run() {
while (true) {
try {
loadQueue.take().run();
} catch (InterruptedException e) {
Skript.exception(e); // Bubble it up with instructions on how to report it
}
}
}
}
static void loadScripts() {
final File scriptsFolder = new File(Skript.getInstance().getDataFolder(), Skript.SCRIPTSFOLDER + File.separator);
if (!scriptsFolder.isDirectory())
scriptsFolder.mkdirs();
final Date start = new Date();
updateDisabledScripts(scriptsFolder.toPath());
Runnable task = () -> {
final Set<File> oldLoadedFiles = new HashSet<>(loadedFiles);
final ScriptInfo i;
final ErrorDescLogHandler h = SkriptLogger.startLogHandler(new ErrorDescLogHandler(null, null, m_no_errors.toString()));
try {
Language.setUseLocal(false);
List<Config> configs = loadStructures(scriptsFolder);
i = loadScripts(configs);
} finally {
Language.setUseLocal(true);
h.stop();
}
// Now, make sure that old files that are no longer there are unloaded
// Only if this is done using async loading, though!
if (loadAsync) {
oldLoadedFiles.removeAll(loadedFiles);
for (File script : oldLoadedFiles) {
assert script != null;
// Use internal unload method which does not call validateFunctions()
unloadScript_(script);
String name = Skript.getInstance().getDataFolder().toPath().toAbsolutePath()
.resolve(Skript.SCRIPTSFOLDER).relativize(script.toPath()).toString();
assert name != null;
Functions.clearFunctions(name);
}
Functions.validateFunctions(); // Manually validate functions
}
if (i.files == 0)
Skript.warning(m_no_scripts.toString());
if (Skript.logNormal() && i.files > 0)
Skript.info(m_scripts_loaded.toString(i.files, i.triggers, i.commands, start.difference(new Date())));
SkriptEventHandler.registerBukkitEvents();
};
if (loadAsync)
loadQueue.add(task);
else
task.run();
}
/**
* Filter for enabled scripts & folders.
*/
private final static FileFilter scriptFilter = new FileFilter() {
@Override
public boolean accept(final @Nullable File f) {
return f != null && (f.isDirectory() || StringUtils.endsWithIgnoreCase("" + f.getName(), ".sk")) && !f.getName().startsWith("-");
}
};
/**
* Loads the specified scripts.
*
* @param configs Configs for scripts, loaded by {@link #loadStructures(File[])}
* @return Info on the loaded scripts.
*/
public static ScriptInfo loadScripts(final List<Config> configs) {
ScriptInfo i = new ScriptInfo();
AtomicBoolean syncCommands = new AtomicBoolean(false);
Runnable task = () -> {
// Do NOT sort here, list must be loaded in order it came in (see issue #667)
final boolean wasLocal = Language.setUseLocal(false);
try {
Bukkit.getPluginManager().callEvent(new PreScriptLoadEvent(configs));
for (final Config cfg : configs) {
assert cfg != null : configs.toString();
ScriptInfo info = loadScript(cfg);
// Check if commands have been changed and a re-send is needed
if (!info.commandNames.equals(commandNames.get(cfg.getFileName()))) {
syncCommands.set(true); // Sync once after everything has been loaded
commandNames.put(cfg.getFileName(), info.commandNames); // These will soon be sent to clients
}
i.add(info);
}
} finally {
if (wasLocal)
Language.setUseLocal(true);
}
SkriptEventHandler.registerBukkitEvents();
};
if (loadAsync && Bukkit.isPrimaryThread())
loadQueue.add(task);
else
task.run();
// After we've loaded everything, refresh commands their names changed
if (syncCommands.get()) {
Server server = Bukkit.getServer();
assert server != null;
if (CommandReloader.syncCommands(server))
Skript.debug("Commands synced to clients");
else
Skript.debug("Commands changed but not synced to clients (normal on 1.12 and older)");
} else {
Skript.debug("Commands unchanged, not syncing them to clients");
}
// If task was ran asynchronously, returned stats may be wrong
// This is probably ok, since loadScripts() will go async if needed
return i;
}
/**
* Loads specified scripts and places log to given list.
*
* @param configs Configs for scripts, loaded by {@link #loadStructures(File[])}
* @param logOut List where to place log.
* @return Info on the loaded scripts.
*/
public static ScriptInfo loadScripts(final List<Config> configs, final List<LogEntry> logOut) {
final RetainingLogHandler logHandler = SkriptLogger.startRetainingLog();
try {
return loadScripts(configs);
} finally {
logOut.addAll(logHandler.getLog());
logHandler.clear(); // Remove everything from the log handler
logHandler.printLog(); // Won't print anything, but handler is properly closed
}
}
/**
* Loads the specified scripts.
*
* @param configs Configs for scripts, loaded by {@link #loadStructure(File)}
* @return Info on the loaded scripts
*/
public static ScriptInfo loadScripts(final Config... configs) {
return loadScripts(Arrays.asList(configs));
}
/**
* Load specified scripts.
*
* @param files Script files.
* @return Info on the loaded scripts.
* @deprecated Use the methods that take configs as parameters.
*/
@Deprecated
public static ScriptInfo loadScripts(final File... files) {
List<Config> configs = loadStructures(files);
return loadScripts(configs);
}
/**
* Represents data for event which is waiting to be loaded.
*/
private static class ParsedEventData {
public ParsedEventData(NonNullPair<SkriptEventInfo<?>, SkriptEvent> info, String event, SectionNode node, List<TriggerItem> items) {
this.info = info;
this.event = event;
this.node = node;
this.items = items;
}
public final NonNullPair<SkriptEventInfo<?>, SkriptEvent> info;
public final String event;
public final SectionNode node;
public final List<TriggerItem> items;
}
/**
* Loads one script. Only for internal use, as this doesn't register/update
* event handlers.
* @param config Config for script to be loaded.
* @return Info about script that is loaded
*/
// Whenever you call this method, make sure to also call PreScriptLoadEvent
private static ScriptInfo loadScript(final @Nullable Config config) {
if (config == null) { // Something bad happened, hopefully got logged to console
return new ScriptInfo();
}
// When something is parsed, it goes there to be loaded later
List<ScriptCommand> commands = new ArrayList<>();
List<Function<?>> functions = new ArrayList<>();
List<ParsedEventData> events = new ArrayList<>();
// Track what is loaded
ScriptInfo i = new ScriptInfo();
i.files = 1; // Loading one script
try {
if (SkriptConfig.keepConfigsLoaded.value())
SkriptConfig.configs.add(config);
currentOptions.clear();
currentScript = config;
// final SerializedScript script = new SerializedScript();
final CountingLogHandler numErrors = SkriptLogger.startLogHandler(new CountingLogHandler(SkriptLogger.SEVERE));
try {
for (final Node cnode : config.getMainNode()) {
if (!(cnode instanceof SectionNode)) {
Skript.error("invalid line - all code has to be put into triggers");
continue;
}
final SectionNode node = ((SectionNode) cnode);
String event = node.getKey();
if (event == null)
continue;
if (event.equalsIgnoreCase("aliases")) {
node.convertToEntries(0, "=");
// Initialize and load script aliases
ScriptAliases aliases = Aliases.createScriptAliases();
Aliases.setScriptAliases(aliases);
aliases.parser.load(node);
continue;
} else if (event.equalsIgnoreCase("options")) {
node.convertToEntries(0);
for (final Node n : node) {
if (!(n instanceof EntryNode)) {
Skript.error("invalid line in options");
continue;
}
currentOptions.put(((EntryNode) n).getKey(), ((EntryNode) n).getValue());
}
continue;
} else if (event.equalsIgnoreCase("variables")) {
// TODO allow to make these override existing variables
node.convertToEntries(0, "=");
for (final Node n : node) {
if (!(n instanceof EntryNode)) {
Skript.error("Invalid line in variables section");
continue;
}
String name = ((EntryNode) n).getKey().toLowerCase(Locale.ENGLISH);
if (name.startsWith("{") && name.endsWith("}"))
name = "" + name.substring(1, name.length() - 1);
final String var = name;
name = StringUtils.replaceAll(name, "%(.+)?%", new Callback<String, Matcher>() {
@Override
@Nullable
public String run(final Matcher m) {
if (m.group(1).contains("{") || m.group(1).contains("}") || m.group(1).contains("%")) {
Skript.error("'" + var + "' is not a valid name for a default variable");
return null;
}
final ClassInfo<?> ci = Classes.getClassInfoFromUserInput("" + m.group(1));
if (ci == null) {
Skript.error("Can't understand the type '" + m.group(1) + "'");
return null;
}
return "<" + ci.getCodeName() + ">";
}
});
if (name == null) {
continue;
} else if (name.contains("%")) {
Skript.error("Invalid use of percent signs in variable name");
continue;
}
if (Variables.getVariable(name, null, false) != null)
continue;
Object o;
final ParseLogHandler log = SkriptLogger.startParseLogHandler();
try {
o = Classes.parseSimple(((EntryNode) n).getValue(), Object.class, ParseContext.SCRIPT);
if (o == null) {
log.printError("Can't understand the value '" + ((EntryNode) n).getValue() + "'");
continue;
}
log.printLog();
} finally {
log.stop();
}
final ClassInfo<?> ci = Classes.getSuperClassInfo(o.getClass());
if (ci.getSerializer() == null) {
Skript.error("Can't save '" + ((EntryNode) n).getValue() + "' in a variable");
continue;
} else if (ci.getSerializeAs() != null) {
final ClassInfo<?> as = Classes.getExactClassInfo(ci.getSerializeAs());
if (as == null) {
assert false : ci;
continue;
}
o = Converters.convert(o, as.getC());
if (o == null) {
Skript.error("Can't save '" + ((EntryNode) n).getValue() + "' in a variable");
continue;
}
}
Variables.setVariable(name, o, null, false);
}
continue;
}
if (!SkriptParser.validateLine(event))
continue;
if (event.toLowerCase().startsWith("command ")) {
setCurrentEvent("command", CommandEvent.class);
final ScriptCommand c = Commands.loadCommand(node, false);
if (c != null) {
commands.add(c);
i.commandNames.add(c.getName()); // For tab completion
}
i.commands++;
deleteCurrentEvent();
continue;
} else if (event.toLowerCase().startsWith("function ")) {
setCurrentEvent("function", FunctionEvent.class);
final Function<?> func = Functions.loadFunction(node);
if (func != null) {
functions.add(func);
}
i.functions++;
deleteCurrentEvent();
continue;
}
if (Skript.logVeryHigh() && !Skript.debug())
Skript.info("loading trigger '" + event + "'");
if (StringUtils.startsWithIgnoreCase(event, "on "))
event = "" + event.substring("on ".length());
event = replaceOptions(event);
final NonNullPair<SkriptEventInfo<?>, SkriptEvent> parsedEvent = SkriptParser.parseEvent(event, "can't understand this event: '" + node.getKey() + "'");
if (parsedEvent == null || !parsedEvent.getSecond().shouldLoadEvent())
continue;
if (Skript.debug() || node.debug())
Skript.debug(event + " (" + parsedEvent.getSecond().toString(null, true) + "):");
try {
setCurrentEvent("" + parsedEvent.getFirst().getName().toLowerCase(Locale.ENGLISH), parsedEvent.getFirst().events);
setCurrentSkriptEvent(parsedEvent.getSecond());
events.add(new ParsedEventData(parsedEvent, event, node, loadItems(node)));
} finally {
deleteCurrentEvent();
deleteCurrentSkriptEvent();
}
if (parsedEvent.getSecond() instanceof SelfRegisteringSkriptEvent) {
((SelfRegisteringSkriptEvent) parsedEvent.getSecond()).afterParse(config);
}
i.triggers++;
}
if (Skript.logHigh())
Skript.info("loaded " + i.triggers + " trigger" + (i.triggers == 1 ? "" : "s")+ " and " + i.commands + " command" + (i.commands == 1 ? "" : "s") + " from '" + config.getFileName() + "'");
currentScript = null;
Aliases.setScriptAliases(null); // These are per-script
} finally {
numErrors.stop();
}
} catch (final Exception e) {
Skript.exception(e, "Could not load " + config.getFileName());
} finally {
SkriptLogger.setNode(null);
}
// In always sync task, enable stuff
Callable<Void> callable = new Callable<Void>() {
@SuppressWarnings({"synthetic-access", "null"})
@Override
public @Nullable Void call() throws Exception {
// Unload script IF we're doing async stuff
// (else it happened already)
File file = config.getFile();
if (loadAsync) {
if (file != null)
unloadScript_(file);
}
// Now, enable everything!
for (ScriptCommand command : commands) {
assert command != null;
Commands.registerCommand(command);
}
for (ParsedEventData event : events) {
setCurrentEvent("" + event.info.getFirst().getName().toLowerCase(Locale.ENGLISH), event.info.getFirst().events);
setCurrentSkriptEvent(event.info.getSecond());
final Trigger trigger;
try {
trigger = new Trigger(config.getFile(), event.event, event.info.getSecond(), event.items);
trigger.setLineNumber(event.node.getLine()); // Set line number for debugging
trigger.setDebugLabel(config.getFileName() + ": line " + event.node.getLine());
} finally {
deleteCurrentEvent();
}
if (event.info.getSecond() instanceof SelfRegisteringSkriptEvent) {
((SelfRegisteringSkriptEvent) event.info.getSecond()).register(trigger);
SkriptEventHandler.addSelfRegisteringTrigger(trigger);
} else {
SkriptEventHandler.addTrigger(event.info.getFirst().events, trigger);
}
deleteCurrentEvent();
deleteCurrentSkriptEvent();
}
// Remove the script from the disabled scripts list
File disabledFile = new File(file.getParentFile(), "-" + file.getName());
disabledFiles.remove(disabledFile);
// Add to loaded files to use for future reloads
loadedFiles.add(file);
return null;
}
};
if (loadAsync) { // Need to delegate to main thread
Task.callSync(callable);
} else { // We are in main thread, execute immediately
try {
callable.call();
} catch (Exception e) {
Skript.exception(e);
}
}
return i;
}
/**
* Loads structures of specified scripts.
*
* @param files
*/
public static List<Config> loadStructures(final File[] files) {
Arrays.sort(files);
List<Config> loadedFiles = new ArrayList<>(files.length);
for (final File f : files) {
assert f != null : Arrays.toString(files);
loadedFiles.add(loadStructure(f));
}
return loadedFiles;
}
/**
* Loads structures of all scripts in the given directory, or of the passed script if it's a normal file
*
* @param directory a directory or a single file
*/
public static List<Config> loadStructures(File directory) {
if (!directory.isDirectory())
return loadStructures(new File[]{directory});
final File[] files = directory.listFiles(scriptFilter);
Arrays.sort(files);
List<Config> loadedFiles = new ArrayList<>(files.length);
for (final File f : files) {
if (f.isDirectory()) {
loadedFiles.addAll(loadStructures(f));
} else {
Config cfg = loadStructure(f);
if (cfg != null)
loadedFiles.add(cfg);
}
}
return loadedFiles;
}
/**
* Loads structure of given script, currently only for functions. Must be called before
* actually loading that script.
* @param f Script file.
*/
@SuppressWarnings("resource") // Stream is closed in Config constructor called in loadStructure
public static @Nullable Config loadStructure(final File f) {
if (!f.exists()) { // If file does not exist...
unloadScript(f); // ... it might be good idea to unload it now
return null;
}
try {
String name = Skript.getInstance().getDataFolder().toPath().toAbsolutePath()
.resolve(Skript.SCRIPTSFOLDER).relativize(f.toPath().toAbsolutePath()).toString();
assert name != null;
return loadStructure(new FileInputStream(f), name);
} catch (final IOException e) {
Skript.error("Could not load " + f.getName() + ": " + ExceptionUtils.toString(e));
}
return null;
}
/**
* Loads structure of given script, currently only for functions. Must be called before
* actually loading that script.
* @param source Source input stream.
* @param name Name of source "file".
*/
public static @Nullable Config loadStructure(final InputStream source, final String name) {
try {
final Config config = new Config(source, name,
Skript.getInstance().getDataFolder().toPath().resolve(Skript.SCRIPTSFOLDER).resolve(name).toFile(), true, false, ":");
return loadStructure(config);
} catch (final IOException e) {
Skript.error("Could not load " + name + ": " + ExceptionUtils.toString(e));
}
return null;
}
/**
* Loads structure of given script, currently only for functions. Must be called before
* actually loading that script.
* @param config Config object for the script.
*/
public static @Nullable Config loadStructure(final Config config) {
try {
//final CountingLogHandler numErrors = SkriptLogger.startLogHandler(new CountingLogHandler(SkriptLogger.SEVERE));
try {
for (final Node cnode : config.getMainNode()) {
if (!(cnode instanceof SectionNode)) {
// Don't spit error yet, we are only pre-parsing...
continue;
}
final SectionNode node = ((SectionNode) cnode);
String event = node.getKey();
if (event == null)
continue;
if (!SkriptParser.validateLine(event))
continue;
if (event.toLowerCase().startsWith("function ")) {
setCurrentEvent("function", FunctionEvent.class);
Functions.loadSignature(config.getFileName(), node);
deleteCurrentEvent();
continue;
}
}
currentScript = null;
} finally {
//numErrors.stop();
}
SkriptLogger.setNode(null);
return config;
} catch (final Exception e) {
Skript.exception(e, "Could not load " + config.getFileName());
} finally {
SkriptLogger.setNode(null);
}
return null; // Oops something went wrong
}
/**
* Unloads enabled scripts from the specified directory and its subdirectories.
*
* @param folder
* @return Info on the unloaded scripts
*/
static ScriptInfo unloadScripts(final File folder) {
final ScriptInfo r = unloadScripts_(folder);
Functions.validateFunctions();
return r;
}
private static ScriptInfo unloadScripts_(final File folder) {
final ScriptInfo info = new ScriptInfo();
final File[] files = folder.listFiles(scriptFilter);
for (final File f : files) {
if (f.isDirectory()) {
info.add(unloadScripts_(f));
} else if (f.getName().endsWith(".sk")) {
info.add(unloadScript_(f));
}
}
return info;
}
/**
* Unloads the specified script.
*
* @param script
* @return Info on the unloaded script
*/
public static ScriptInfo unloadScript(final File script) {
final ScriptInfo r = unloadScript_(script);
Functions.validateFunctions();
return r;
}
private static ScriptInfo unloadScript_(final File script) {
if (loadedFiles.contains(script)) {
final ScriptInfo info = SkriptEventHandler.removeTriggers(script); // Remove triggers
synchronized (loadedScripts) { // Update script info
loadedScripts.subtract(info);
}
loadedFiles.remove(script); // We just unloaded it, so...
disabledFiles.add(new File(script.getParentFile(), "-" + script.getName()));
// Clear functions, DO NOT validate them yet
// If unloading, our caller will do this immediately after we return
// However, if reloading, new version of this script is first loaded
String name = Skript.getInstance().getDataFolder().toPath().toAbsolutePath()
.resolve(Skript.SCRIPTSFOLDER).relativize(script.toPath().toAbsolutePath()).toString();
assert name != null;
Functions.clearFunctions(name);
return info; // Return how much we unloaded
}
return new ScriptInfo(); // Return that we unloaded literally nothing
}
/**
* Reloads a single script.
* @param script Script file.
* @return Statistics of the newly loaded script.
*/
public static ScriptInfo reloadScript(File script) {
if (!isAsync()) {
unloadScript_(script);
}
Config configs = loadStructure(script);
Functions.validateFunctions();
return loadScripts(configs);
}
/**
* Reloads all scripts in the given folder and its subfolders.