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/*
* SonarQube
* Copyright (C) 2009-2025 SonarSource SA
* mailto:info AT sonarsource DOT com
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package org.sonar.xoo.scm;
import com.google.common.annotations.VisibleForTesting;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.util.Date;
import java.util.List;
import org.apache.commons.csv.CSVFormat;
import org.apache.commons.csv.CSVParser;
import org.apache.commons.csv.CSVRecord;
import org.sonar.api.batch.fs.InputFile;
import org.sonar.api.batch.scm.BlameCommand;
import org.sonar.api.batch.scm.BlameLine;
import org.sonar.api.utils.DateUtils;
import static com.google.common.base.Preconditions.checkState;
import static org.apache.commons.lang3.StringUtils.trimToNull;
public class XooBlameCommand extends BlameCommand {
private static final String SCM_EXTENSION = ".scm";
@Override
public void blame(BlameInput input, BlameOutput result) {
for (InputFile inputFile : input.filesToBlame()) {
processFile(inputFile, result);
}
}
@VisibleForTesting
protected void processFile(InputFile inputFile, BlameOutput result) {
File ioFile = inputFile.file();
File scmDataFile = new File(ioFile.getParentFile(), ioFile.getName() + SCM_EXTENSION);
if (!scmDataFile.exists()) {
return;
}
try {
List<BlameLine> blame = readFile(scmDataFile);
result.blameResult(inputFile, blame);
} catch (IOException e) {
throw new IllegalStateException(e);
}
}
private static List<BlameLine> readFile(File inputStream) throws IOException {
Date now = new Date();
try (CSVParser csvParser = CSVFormat.RFC4180
.withIgnoreEmptyLines()
.withIgnoreSurroundingSpaces()
.parse(new FileReader(inputStream))) {
List<CSVRecord> records = csvParser.getRecords();
return records.stream()
.map(r -> convertToBlameLine(now, r))
.toList();
}
}
private static BlameLine convertToBlameLine(Date now, CSVRecord csvRecord) {
checkState(csvRecord.size() >= 3, "Not enough fields on line %s", csvRecord);
String revision = trimToNull(csvRecord.get(0));
String author = trimToNull(csvRecord.get(1));
BlameLine blameLine = new BlameLine().revision(revision).author(author);
String dateStr = trimToNull(csvRecord.get(2));
if (dateStr != null) {
// try to load a relative number of days
try {
int days = Integer.parseInt(dateStr);
blameLine.date(DateUtils.addDays(now, days));
} catch (NumberFormatException e) {
Date dateTime = DateUtils.parseDateTimeQuietly(dateStr);
if (dateTime != null) {
blameLine.date(dateTime);
} else {
// Will throw an exception, when date is not in format "yyyy-MM-dd"
blameLine.date(DateUtils.parseDate(dateStr));
}
}
}
return blameLine;
}
}
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