org.sonar.plugins.python.TextReportReader Maven / Gradle / Ivy
/*
* SonarQube Python Plugin
* Copyright (C) 2011-2021 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.plugins.python;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import javax.annotation.Nullable;
import org.sonar.api.batch.fs.FileSystem;
import org.sonar.api.utils.log.Logger;
import org.sonar.api.utils.log.Loggers;
/**
* Common implementation to parse Flake8 and Pylint reports
*/
public class TextReportReader {
private static final Pattern DEFAULT_PATTERN = Pattern.compile("(.+):(\\d+):(\\d+): (\\S+[^:]):? (.*)");
private static final Pattern LEGACY_PATTERN = Pattern.compile("(.+):(\\d+): \\[(.*)\\] (.*)");
private static final Logger LOG = Loggers.get(TextReportReader.class);
public static final int COLUMN_ZERO_BASED = 0;
public static final int COLUMN_ONE_BASED = 1;
private final int reportOffset;
public TextReportReader(int columnStartIndex) {
this.reportOffset = columnStartIndex;
}
public List parse(File report, FileSystem fileSystem) throws IOException {
List issues = new ArrayList<>();
try (Scanner scanner = new Scanner(report.toPath(), fileSystem.encoding().name())) {
while (scanner.hasNextLine()) {
Issue issue = parseLine(scanner.nextLine());
if (issue != null) {
issues.add(issue);
}
}
}
return issues;
}
private Issue parseLine(String line) {
if (line.length() > 0) {
Matcher m = TextReportReader.DEFAULT_PATTERN.matcher(line);
if (m.matches()) {
return extractDefaultStyleIssue(m);
}
m = TextReportReader.LEGACY_PATTERN.matcher(line);
if (m.matches()) {
return extractLegacyStyleIssue(m);
}
LOG.debug("Cannot parse the line: {}", line);
}
return null;
}
private Issue extractDefaultStyleIssue(Matcher m) {
String filePath = m.group(1);
int lineNumber = Integer.parseInt(m.group(2));
int columnNumber = Integer.parseInt(m.group(3));
// Flake8 column numbering starts at 1
columnNumber -= this.reportOffset;
String ruleKey = m.group(4);
String message = m.group(5);
return new Issue(filePath, ruleKey, message, lineNumber, columnNumber);
}
private static Issue extractLegacyStyleIssue(Matcher m) {
String filePath = m.group(1);
int lineNumber = Integer.parseInt(m.group(2));
String ruleKey = m.group(3);
int keyLastIndex = ruleKey.indexOf("(");
if (keyLastIndex > 0) {
ruleKey = ruleKey.substring(0, keyLastIndex);
}
String message = m.group(4);
return new Issue(filePath, ruleKey, message, lineNumber, null);
}
public static class Issue {
public final String filePath;
public final String ruleKey;
public final String message;
public final Integer lineNumber;
public final Integer columnNumber;
public Issue(String filePath, String ruleKey, String message, Integer lineNumber, @Nullable Integer columnNumber) {
this.filePath = filePath;
this.ruleKey = ruleKey;
this.message = message;
this.lineNumber = lineNumber;
this.columnNumber = columnNumber;
}
}
}