/**
* Copyright (C) 2005 - 2013 Eric Van Dewoestine
*
* This program 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.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.eclim.plugin.dltk.command.launching;
import java.util.ArrayList;
import org.eclim.Services;
import org.eclim.annotation.Command;
import org.eclim.command.CommandLine;
import org.eclim.command.Options;
import org.eclim.plugin.core.command.AbstractCommand;
import org.eclim.plugin.core.project.ProjectNatureFactory;
import org.eclim.plugin.dltk.preference.DltkInterpreterTypeManager;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.core.runtime.Path;
import org.eclipse.dltk.core.environment.EnvironmentManager;
import org.eclipse.dltk.core.environment.IEnvironment;
import org.eclipse.dltk.core.environment.IFileHandle;
import org.eclipse.dltk.core.internal.environment.LazyFileHandle;
import org.eclipse.dltk.debug.ui.interpreters.InterpretersUpdater;
import org.eclipse.dltk.internal.debug.ui.interpreters.EnvironmentVariableContentProvider;
import org.eclipse.dltk.launching.EnvironmentVariable;
import org.eclipse.dltk.launching.IInterpreterInstall;
import org.eclipse.dltk.launching.IInterpreterInstallType;
import org.eclipse.dltk.launching.InterpreterStandin;
import org.eclipse.dltk.launching.LibraryLocation;
import org.eclipse.dltk.launching.ScriptRuntime;
import org.eclipse.dltk.utils.PlatformFileUtils;
/**
* Command to add a new interpreter.
*
* Majority of the code here was gleaned from
* org.eclipse.dltk.internal.debug.ui.interpreters.AddScriptInterpreterDialog
*
* @author Eric Van Dewoestine
*/
@Command(
name = "dltk_add_interpreter",
options =
"REQUIRED l nature ARG," +
"REQUIRED t type ARG," +
"REQUIRED p path ARG," +
"OPTIONAL n name ARG"
)
public class AddInterpreterCommand
extends AbstractCommand
{
@Override
public Object execute(CommandLine commandLine)
throws Exception
{
String alias = getNatureAlias(commandLine);
String nature = ProjectNatureFactory.getNatureForAlias(alias);
if (alias == null){
throw new RuntimeException(
Services.getMessage("nature.alias.not.found", alias));
}
String interpreterPath = commandLine.getValue(Options.PATH_OPTION);
IInterpreterInstallType type = getInterpreterInstallType(nature, commandLine);
if (type == null){
throw new RuntimeException(
Services.getMessage("interpreter.type.not.found"));
}
IEnvironment env = EnvironmentManager.getLocalEnvironment();
IFileHandle file = PlatformFileUtils
.findAbsoluteOrEclipseRelativeFile(env, new Path(interpreterPath));
if (!file.exists()){
throw new RuntimeException(
Services.getMessage("interpreter.path.not.found", interpreterPath));
}
EnvironmentVariableContentProvider envVarsProvider =
new EnvironmentVariableContentProvider();
EnvironmentVariable[] envVars = envVarsProvider.getVariables();
LibraryLocation[] libs = type.getDefaultLibraryLocations(
file, envVars, new NullProgressMonitor());
IStatus status = type.validateInstallLocation(
file, envVars, libs, new NullProgressMonitor());
if (!status.isOK()){
throw new RuntimeException(status.getMessage());
}
IInterpreterInstall deflt =
ScriptRuntime.getDefaultInterpreterInstall(
new ScriptRuntime.DefaultInterpreterEntry(nature, env.getId()));
if (deflt != null && deflt.getInstallLocation().equals(file)){
throw new RuntimeException(
Services.getMessage("interpreter.already.exists", interpreterPath));
}
ArrayList<IInterpreterInstall> interpreters =
new ArrayList<IInterpreterInstall>();
IInterpreterInstallType[] types =
ScriptRuntime.getInterpreterInstallTypes(nature);
for (IInterpreterInstallType iit : types){
IInterpreterInstall[] installs = iit.getInterpreterInstalls();
for (IInterpreterInstall install : installs){
if (install.getInstallLocation().equals(file)){
throw new RuntimeException(
Services.getMessage("interpreter.already.exists", interpreterPath));
}
interpreters.add(install);
}
}
String name = commandLine.getValue(Options.NAME_OPTION);
if (name == null){
name = generateInterpreterName(file, nature);
}
String id = null;
do {
id = String.valueOf(System.currentTimeMillis());
} while (type.findInterpreterInstall(id) != null);
IInterpreterInstall install = new InterpreterStandin(type, id);
install.setInstallLocation(
new LazyFileHandle(env.getId(), new Path(interpreterPath)));
install.setName(name);
install.setLibraryLocations(libs);
install.setInterpreterArgs(null); // future use
install = ((InterpreterStandin)install).convertToRealInterpreter();
interpreters.add(install);
if(deflt == null){
deflt = install;
ScriptRuntime.setDefaultInterpreterInstall(install, null, false);
}
IInterpreterInstall[] defaults = {deflt};
IInterpreterInstall[] installs =
interpreters.toArray(new IInterpreterInstall[interpreters.size()]);
InterpretersUpdater updater = new InterpretersUpdater();
updater.updateInterpreterSettings(nature, installs, defaults);
return Services.getMessage("interpreter.added");
}
protected String getNatureAlias(CommandLine commandLine)
throws Exception
{
return commandLine.getValue(Options.LANG_OPTION);
}
protected IInterpreterInstallType getInterpreterInstallType(
String nature, CommandLine commandLine)
throws Exception
{
String interpreterType = commandLine.getValue(Options.TYPE_OPTION);
return DltkInterpreterTypeManager
.getInterpreterInstallType(interpreterType, nature);
}
// mostly ripped off from eclipse.
protected String generateInterpreterName(IFileHandle file, String nature)
{
final String genName;
final IPath path = new Path(file.getCanonicalPath());
if (path.segmentCount() > 0) {
genName = path.lastSegment();
} else {
genName = null;
}
// Add number if interpreter with such name already exists.
String name = genName;
if (name != null) {
int index = 0;
while (!validateGeneratedName(name, nature)) {
name = genName + "(" + String.valueOf(++index) + ")";
}
}
return name;
}
protected boolean validateGeneratedName(String name, String nature)
{
IInterpreterInstallType[] types =
ScriptRuntime.getInterpreterInstallTypes(nature);
for (IInterpreterInstallType type : types){
IInterpreterInstall install = type.findInterpreterInstallByName(name);
if (install != null) {
return false;
}
}
return true;
}
}