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208 changes: 208 additions & 0 deletions
208
cli/src/main/java/com/devonfw/tools/ide/commandlet/ShellCommandlet.java
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|---|---|---|
| @@ -0,0 +1,208 @@ | ||
| package com.devonfw.tools.ide.commandlet; | ||
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| import java.io.IOException; | ||
| import java.util.Iterator; | ||
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| import org.fusesource.jansi.AnsiConsole; | ||
| import org.jline.reader.EndOfFileException; | ||
| import org.jline.reader.LineReader; | ||
| import org.jline.reader.LineReaderBuilder; | ||
| import org.jline.reader.MaskingCallback; | ||
| import org.jline.reader.Parser; | ||
| import org.jline.reader.UserInterruptException; | ||
| import org.jline.reader.impl.DefaultParser; | ||
| import org.jline.terminal.Terminal; | ||
| import org.jline.terminal.TerminalBuilder; | ||
| import org.jline.widget.AutosuggestionWidgets; | ||
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| import com.devonfw.tools.ide.cli.CliArgument; | ||
| import com.devonfw.tools.ide.cli.CliArguments; | ||
| import com.devonfw.tools.ide.cli.CliException; | ||
| import com.devonfw.tools.ide.completion.IdeCompleter; | ||
| import com.devonfw.tools.ide.context.AbstractIdeContext; | ||
| import com.devonfw.tools.ide.context.IdeContext; | ||
| import com.devonfw.tools.ide.property.BooleanProperty; | ||
| import com.devonfw.tools.ide.property.FlagProperty; | ||
| import com.devonfw.tools.ide.property.KeywordProperty; | ||
| import com.devonfw.tools.ide.property.Property; | ||
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|
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| /** | ||
| * {@link Commandlet} for internal interactive shell with build-in auto-completion and help. | ||
| */ | ||
| public final class ShellCommandlet extends Commandlet { | ||
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| private static final int AUTOCOMPLETER_MAX_RESULTS = 50; | ||
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| private static final int RC_EXIT = 987654321; | ||
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| /** | ||
| * The constructor. | ||
| * | ||
| * @param context the {@link IdeContext}. | ||
| */ | ||
| public ShellCommandlet(IdeContext context) { | ||
|
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| super(context); | ||
| addKeyword(getName()); | ||
| } | ||
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| @Override | ||
| public String getName() { | ||
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| return "shell"; | ||
| } | ||
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| @Override | ||
| public boolean isIdeHomeRequired() { | ||
|
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| return false; | ||
| } | ||
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| @Override | ||
| public void run() { | ||
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| try { | ||
| // TODO: add BuiltIns here, see: https://github.com/devonfw/IDEasy/issues/168 | ||
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| Parser parser = new DefaultParser(); | ||
| try (Terminal terminal = TerminalBuilder.builder().build()) { | ||
|
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| // initialize our own completer here | ||
| IdeCompleter completer = new IdeCompleter((AbstractIdeContext) this.context); | ||
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| LineReader reader = LineReaderBuilder.builder().terminal(terminal).completer(completer).parser(parser) | ||
| .variable(LineReader.LIST_MAX, AUTOCOMPLETER_MAX_RESULTS).build(); | ||
|
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| // Create autosuggestion widgets | ||
| AutosuggestionWidgets autosuggestionWidgets = new AutosuggestionWidgets(reader); | ||
| // Enable autosuggestions | ||
| autosuggestionWidgets.enable(); | ||
|
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| // TODO: implement TailTipWidgets, see: https://github.com/devonfw/IDEasy/issues/169 | ||
|
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| String prompt = "ide> "; | ||
| String rightPrompt = null; | ||
| String line; | ||
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| AnsiConsole.systemInstall(); | ||
| while (true) { | ||
| try { | ||
| line = reader.readLine(prompt, rightPrompt, (MaskingCallback) null, null); | ||
| reader.getHistory().add(line); | ||
| int rc = runCommand(line); | ||
| if (rc == RC_EXIT) { | ||
| return; | ||
| } | ||
| } catch (UserInterruptException e) { | ||
| // Ignore CTRL+C | ||
| return; | ||
| } catch (EndOfFileException e) { | ||
| // CTRL+D | ||
| return; | ||
| } finally { | ||
| AnsiConsole.systemUninstall(); | ||
| } | ||
| } | ||
|
|
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| } catch (IOException e) { | ||
| throw new RuntimeException(e); | ||
| } | ||
| } catch (Exception e) { | ||
| throw new RuntimeException("Unexpected error during interactive auto-completion", e); | ||
| } | ||
| } | ||
|
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| /** | ||
| * Converts String of arguments to array and runs the command | ||
| * | ||
| * @param args String of arguments | ||
| * @return status code | ||
| */ | ||
| private int runCommand(String args) { | ||
|
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| if ("exit".equals(args) || "quit".equals(args)) { | ||
| return RC_EXIT; | ||
| } | ||
| String[] arguments = args.split(" ", 0); | ||
| CliArguments cliArgs = new CliArguments(arguments); | ||
| cliArgs.next(); | ||
| return ((AbstractIdeContext) this.context).run(cliArgs); | ||
| } | ||
|
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| /** | ||
| * @param argument the current {@link CliArgument} (position) to match. | ||
| * @param commandlet the potential {@link Commandlet} to match. | ||
| * @return {@code true} if the given {@link Commandlet} matches to the given {@link CliArgument}(s) and those have | ||
| * been applied (set in the {@link Commandlet} and {@link Commandlet#validate() validated}), {@code false} | ||
| * otherwise (the {@link Commandlet} did not match and we have to try a different candidate). | ||
| */ | ||
| private boolean apply(CliArgument argument, Commandlet commandlet) { | ||
|
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| this.context.trace("Trying to match arguments to commandlet {}", commandlet.getName()); | ||
| CliArgument currentArgument = argument; | ||
| Iterator<Property<?>> valueIterator = commandlet.getValues().iterator(); | ||
| Property<?> currentProperty = null; | ||
| boolean endOpts = false; | ||
| while (!currentArgument.isEnd()) { | ||
| if (currentArgument.isEndOptions()) { | ||
| endOpts = true; | ||
| } else { | ||
| String arg = currentArgument.get(); | ||
| this.context.trace("Trying to match argument '{}'", currentArgument); | ||
| if ((currentProperty != null) && (currentProperty.isExpectValue())) { | ||
| currentProperty.setValueAsString(arg, this.context); | ||
| if (!currentProperty.isMultiValued()) { | ||
| currentProperty = null; | ||
| } | ||
| } else { | ||
| Property<?> property = null; | ||
| if (!endOpts) { | ||
| property = commandlet.getOption(currentArgument.getKey()); | ||
| } | ||
| if (property == null) { | ||
| if (!valueIterator.hasNext()) { | ||
| this.context.trace("No option or next value found"); | ||
| return false; | ||
| } | ||
| currentProperty = valueIterator.next(); | ||
| this.context.trace("Next value candidate is {}", currentProperty); | ||
| if (currentProperty instanceof KeywordProperty) { | ||
| KeywordProperty keyword = (KeywordProperty) currentProperty; | ||
| if (keyword.matches(arg)) { | ||
| keyword.setValue(Boolean.TRUE); | ||
| this.context.trace("Keyword matched"); | ||
| } else { | ||
| this.context.trace("Missing keyword"); | ||
| return false; | ||
| } | ||
| } else { | ||
| boolean success = currentProperty.assignValueAsString(arg, this.context, commandlet); | ||
| if (!success && currentProperty.isRequired()) { | ||
| return false; | ||
| } | ||
| } | ||
| if ((currentProperty != null) && !currentProperty.isMultiValued()) { | ||
| currentProperty = null; | ||
| } | ||
| } else { | ||
| this.context.trace("Found option by name"); | ||
| String value = currentArgument.getValue(); | ||
| if (value != null) { | ||
| property.setValueAsString(value, this.context); | ||
| } else if (property instanceof BooleanProperty) { | ||
| ((BooleanProperty) property).setValue(Boolean.TRUE); | ||
| } else { | ||
| currentProperty = property; | ||
| if (property.isEndOptions()) { | ||
| endOpts = true; | ||
| } | ||
| throw new UnsupportedOperationException("not implemented"); | ||
| } | ||
| } | ||
| } | ||
| } | ||
| currentArgument = currentArgument.getNext(!endOpts); | ||
| } | ||
| return commandlet.validate(); | ||
| } | ||
| } |
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5 changes: 4 additions & 1 deletion
5
cli/src/main/java/com/devonfw/tools/ide/completion/CompletionCandidate.java
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