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/*******************************************************************************
* Copyright (c) 2017 QNX Software Systems and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*******************************************************************************/
package org.eclipse.cdt.build.gcc.core;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.Writer;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import org.eclipse.cdt.build.gcc.core.internal.Activator;
import org.eclipse.cdt.build.gcc.core.internal.Messages;
import org.eclipse.cdt.core.build.IToolChain;
import org.eclipse.cdt.core.build.IToolChainManager;
import org.eclipse.cdt.core.build.IUserToolChainProvider;
import org.eclipse.cdt.core.envvar.EnvironmentVariable;
import org.eclipse.cdt.core.envvar.IEnvironmentVariable;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import com.google.gson.Gson;
import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
public class GCCUserToolChainProvider implements IUserToolChainProvider {
public static final String PROVIDER_ID = "org.eclipse.cdt.build.gcc.core.provider.user"; //$NON-NLS-1$
private static final String ARCH = "arch"; //$NON-NLS-1$
private static final String DELIMITER = "delimiter"; //$NON-NLS-1$
private static final String ENVIRONMENT = "environment"; //$NON-NLS-1$
private static final String ID = "id"; //$NON-NLS-1$
private static final String NAME = "name"; //$NON-NLS-1$
private static final String OPERATION = "operation"; //$NON-NLS-1$
private static final String PATH = "path"; //$NON-NLS-1$
private static final String PROPERTIES = "properties"; //$NON-NLS-1$
private static final String VALUE = "value"; //$NON-NLS-1$
private IToolChainManager manager;
private JsonArray toolChains;
@Override
public String getId() {
return PROVIDER_ID;
}
private File getJsonFile() {
return Activator.getPlugin().getStateLocation().append("toolchains.json").toFile(); //$NON-NLS-1$
}
@Override
public void init(IToolChainManager manager) throws CoreException {
this.manager = manager;
// Load up the magic JSON file which contains our toolchain defs
try {
File jsonFile = getJsonFile();
if (jsonFile.exists()) {
toolChains = new JsonParser().parse(new FileReader(jsonFile)).getAsJsonArray();
for (JsonElement element : toolChains) {
JsonObject tc = element.getAsJsonObject();
String arch;
if (tc.has(ARCH)) {
arch = tc.get(ARCH).getAsString();
} else {
arch = null;
}
Path path = Paths.get(tc.get(PATH).getAsString());
IEnvironmentVariable[] envvars = null;
if (tc.has(ENVIRONMENT)) {
List<IEnvironmentVariable> envlist = new ArrayList<>();
for (JsonElement var : tc.get(ENVIRONMENT).getAsJsonArray()) {
JsonObject varobj = var.getAsJsonObject();
String name = varobj.get(NAME).getAsString();
int operation = varobj.get(OPERATION).getAsInt();
String value = null;
if (varobj.has(VALUE)) {
value = varobj.get(VALUE).getAsString();
}
String delimiter = null;
if (varobj.has(DELIMITER)) {
delimiter = varobj.get(DELIMITER).getAsString();
}
envlist.add(new EnvironmentVariable(name, value, operation, delimiter));
}
envvars = envlist.toArray(new IEnvironmentVariable[0]);
}
GCCToolChain gcc = new GCCToolChain(this, path, arch, envvars);
if (tc.has(PROPERTIES)) {
for (JsonElement prop : tc.get(PROPERTIES).getAsJsonArray()) {
JsonObject propobj = prop.getAsJsonObject();
gcc.setProperty(propobj.get(NAME).getAsString(), propobj.get(VALUE).getAsString());
}
}
manager.addToolChain(gcc);
}
}
} catch (IOException | IllegalStateException e) {
throw new CoreException(new Status(IStatus.ERROR, Activator.getId(), Messages.GCCUserToolChainProvider_Loading, e));
}
}
@Override
public void addToolChain(IToolChain toolChain) throws CoreException {
if (!(toolChain instanceof GCCToolChain)) {
throw new CoreException(new Status(IStatus.ERROR, Activator.getId(), Messages.GCCUserToolChainProvider_NotOurs));
}
GCCToolChain gcc = (GCCToolChain) toolChain;
// Persist the toolchain
if (toolChains == null) {
toolChains = new JsonArray();
}
JsonObject newtc = new JsonObject();
toolChains.add(newtc);
newtc.addProperty(ID, gcc.getId());
newtc.addProperty(ARCH, gcc.getProperty(IToolChain.ATTR_ARCH));
newtc.addProperty(PATH, gcc.getPath().toString());
Map<String, String> properties = gcc.getProperties();
if (properties != null && !properties.isEmpty()) {
JsonArray props = new JsonArray();
newtc.add(PROPERTIES, props);
for (Entry<String, String> entry : gcc.getProperties().entrySet()) {
JsonObject prop = new JsonObject();
props.add(prop);
prop.addProperty(NAME, entry.getKey());
prop.addProperty(VALUE, entry.getValue());
}
}
IEnvironmentVariable[] envvars = gcc.getVariables();
if (envvars != null && envvars.length > 0) {
JsonArray env = new JsonArray();
newtc.add(ENVIRONMENT, env);
for (IEnvironmentVariable var : gcc.getVariables()) {
JsonObject envvar = new JsonObject();
env.add(envvar);
envvar.addProperty(NAME, var.getName());
envvar.addProperty(OPERATION, var.getOperation());
String value = var.getValue();
if (value != null) {
envvar.addProperty(VALUE, value);
}
String delimiter = var.getDelimiter();
if (delimiter != null) {
envvar.addProperty(DELIMITER, delimiter);
}
}
}
try {
saveJsonFile();
} catch (IOException e) {
throw new CoreException(new Status(IStatus.ERROR, Activator.getId(), Messages.GCCUserToolChainProvider_Saving, e));
}
manager.addToolChain(toolChain);
}
@Override
public void removeToolChain(IToolChain toolChain) throws CoreException {
if (toolChains != null) {
String id = toolChain.getId();
JsonArray copy = new JsonArray();
copy.addAll(toolChains);
for (JsonElement element : copy) {
JsonObject tc = element.getAsJsonObject();
if (id.equals(tc.get(ID).getAsString())) {
toolChains.remove(element);
}
}
try {
saveJsonFile();
} catch (IOException e) {
throw new CoreException(new Status(IStatus.ERROR, Activator.getId(), Messages.GCCUserToolChainProvider_Saving1, e));
}
}
manager.removeToolChain(toolChain);
}
@Override
public IToolChain getToolChain(String id) throws CoreException {
Collection<IToolChain> tcs = manager.getToolChains(PROVIDER_ID, id);
if (tcs.isEmpty()) {
return null;
} else {
return tcs.iterator().next();
}
}
private void saveJsonFile() throws IOException {
try (Writer writer = new FileWriter(getJsonFile())) {
writer.write(new Gson().toJson(toolChains));
}
}
}
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