001    /*
002     * Copyright 2010-2013 JetBrains s.r.o.
003     *
004     * Licensed under the Apache License, Version 2.0 (the "License");
005     * you may not use this file except in compliance with the License.
006     * You may obtain a copy of the License at
007     *
008     * http://www.apache.org/licenses/LICENSE-2.0
009     *
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed under the License is distributed on an "AS IS" BASIS,
012     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013     * See the License for the specific language governing permissions and
014     * limitations under the License.
015     */
016    
017    package org.jetbrains.k2js.config;
018    
019    import com.google.common.collect.Lists;
020    import com.intellij.openapi.diagnostic.Logger;
021    import com.intellij.openapi.project.Project;
022    import com.intellij.openapi.util.Key;
023    import com.intellij.openapi.util.io.FileUtil;
024    import org.jetbrains.annotations.NotNull;
025    import org.jetbrains.jet.lang.psi.JetFile;
026    import org.jetbrains.k2js.utils.JetFileUtils;
027    
028    import java.io.File;
029    import java.io.IOException;
030    import java.io.InputStream;
031    import java.util.ArrayList;
032    import java.util.Collections;
033    import java.util.Enumeration;
034    import java.util.List;
035    import java.util.zip.ZipEntry;
036    import java.util.zip.ZipFile;
037    
038    public class LibrarySourcesConfig extends Config {
039        @NotNull
040        public static final Key<String> EXTERNAL_MODULE_NAME = new Key<String>("externalModule");
041        @NotNull
042        public static final String UNKNOWN_EXTERNAL_MODULE_NAME = "<unknown>";
043    
044        @NotNull
045        private static final Logger LOG = Logger.getInstance("#org.jetbrains.k2js.config.LibrarySourcesConfig");
046    
047        @NotNull
048        private final List<String> files;
049    
050        public LibrarySourcesConfig(
051                @NotNull Project project,
052                @NotNull String moduleId,
053                @NotNull List<String> files,
054                @NotNull EcmaVersion ecmaVersion,
055                boolean sourcemap
056        ) {
057            super(project, moduleId, ecmaVersion, sourcemap);
058            this.files = files;
059        }
060    
061        @NotNull
062        @Override
063        public List<JetFile> generateLibFiles() {
064            if (files.isEmpty()) {
065                return Collections.emptyList();
066            }
067    
068            List<JetFile> jetFiles = new ArrayList<JetFile>();
069            String moduleName = UNKNOWN_EXTERNAL_MODULE_NAME;
070            for (String path : files) {
071                File file = new File(path);
072                if (!file.exists()) continue; // The path here may be copying from a library root configuration, i.e. may be absent
073                try {
074                    String name = file.getName();
075                    if (path.charAt(0) == '@') {
076                        moduleName = path.substring(1);
077                        continue;
078                    }
079    
080                    if (name.endsWith(".jar") || name.endsWith(".zip")) {
081                        jetFiles.addAll(readZip(file));
082                    }
083                    else {
084                        JetFile psiFile = JetFileUtils.createPsiFile(path, FileUtil.loadFile(file), getProject());
085                        psiFile.putUserData(EXTERNAL_MODULE_NAME, moduleName);
086                        jetFiles.add(psiFile);
087                    }
088                }
089                catch (IOException e) {
090                    LOG.error("While processing " + file, e);
091                }
092            }
093    
094            return jetFiles;
095        }
096    
097        private List<JetFile> readZip(File file) throws IOException {
098            ZipFile zipFile = new ZipFile(file);
099            try {
100                return traverseArchive(zipFile);
101            }
102            finally {
103                zipFile.close();
104            }
105        }
106    
107        @NotNull
108        private List<JetFile> traverseArchive(@NotNull ZipFile file) throws IOException {
109            List<JetFile> result = Lists.newArrayList();
110            Enumeration<? extends ZipEntry> zipEntries = file.entries();
111            while (zipEntries.hasMoreElements()) {
112                ZipEntry entry = zipEntries.nextElement();
113                if (!entry.isDirectory() && entry.getName().endsWith(".kt")) {
114                    InputStream stream = file.getInputStream(entry);
115                    String text = FileUtil.loadTextAndClose(stream);
116                    JetFile jetFile = JetFileUtils.createPsiFile(entry.getName(), text, getProject());
117                    jetFile.putUserData(EXTERNAL_MODULE_NAME, UNKNOWN_EXTERNAL_MODULE_NAME);
118                    result.add(jetFile);
119                }
120            }
121            return result;
122        }
123    }