com.sangupta.codefix.FixCopyright.java Source code

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Here is the source code for com.sangupta.codefix.FixCopyright.java

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/**
 *
 * codefix - Perform minor code refactoring tasks
 * Copyright (c) 2014, Sandeep Gupta
 * 
 * http://sangupta.com/projects/codefix
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *       http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * 
 */

package com.sangupta.codefix;

import io.airlift.command.Arguments;
import io.airlift.command.Command;
import io.airlift.command.Option;

import java.io.File;
import java.io.IOException;

import org.apache.commons.io.FileUtils;
import org.apache.commons.lang3.StringUtils;

import com.sangupta.codefix.helper.CopyrightHelper;

@Command(name = "addcopy", description = "Fix copyright amongst code files")
public class FixCopyright extends AbstractCodeFixCommand {

    @Option(name = "-f", description = "The file from which to read the copyright notice")
    private String copyrightFile;

    @Arguments
    private String workingFolder;

    private String copyrightNotice;

    @Override
    protected void beforeProcessing() {
        try {
            this.copyrightNotice = FileUtils.readFileToString(new File(this.copyrightFile));
        } catch (IOException e) {
            System.out.println("Unable to read copyright notice from file: " + this.copyrightFile);
            return;
        }
    }

    protected String processEachFile(File file) throws IOException {
        // read contents
        String contents = FileUtils.readFileToString(file).trim();

        // check if file contains comments or not
        boolean hasCopyright = CopyrightHelper.checkCopyrightExists(contents);

        if (!hasCopyright) {
            // append the copyright and move on
            contents = this.copyrightNotice + SYSTEM_NEW_LINE + contents;
            FileUtils.writeStringToFile(file, contents);
            return "adding copyright";
        }

        // remove comment
        int index = CopyrightHelper.findCopyrightEnd(contents);
        if (index == -1) {
            System.out.println("No proper ending of comment detected, skipping!");
        }

        contents = contents.substring(index + 1);
        contents = this.copyrightNotice + SYSTEM_NEW_LINE + StringUtils.stripStart(contents, null);
        FileUtils.writeStringToFile(file, contents);
        return "copyright updated!";
    }

}