org.gradle.api.internalmvnsettings.DefaultLocalMavenRepositoryLocator Maven / Gradle / Ivy
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/*
* Copyright 2010 the original author or authors.
*
* 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 org.gradle.api.internal.artifacts.mvnsettings;
import org.apache.maven.settings.building.SettingsBuildingException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.File;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class DefaultLocalMavenRepositoryLocator implements LocalMavenRepositoryLocator {
private static final Logger LOGGER = LoggerFactory.getLogger(DefaultLocalMavenRepositoryLocator.class);
private static final Pattern PLACEHOLDER_PATTERN = Pattern.compile("\\$\\{([^\\}]*)\\}");
private final MavenSettingsProvider settingsProvider;
private final SystemPropertyAccess system;
private String localRepoPathFromMavenSettings;
public DefaultLocalMavenRepositoryLocator(MavenSettingsProvider settingsProvider) {
this(settingsProvider, new CurrentSystemPropertyAccess());
}
protected DefaultLocalMavenRepositoryLocator(MavenSettingsProvider settingsProvider, SystemPropertyAccess system) {
this.settingsProvider = settingsProvider;
this.system = system;
}
public File getLocalMavenRepository() throws CannotLocateLocalMavenRepositoryException {
String localOverride = system.getProperty("maven.repo.local");
if (localOverride != null) {
return new File(localOverride);
}
try {
String repoPath = parseLocalRepoPathFromMavenSettings();
if (repoPath != null) {
File file = new File(resolvePlaceholders(repoPath.trim()));
if (isDriveRelativeWindowsPath(file)) {
return file.getAbsoluteFile();
} else {
return file;
}
} else {
File defaultLocation = new File(system.getProperty("user.home"), "/.m2/repository").getAbsoluteFile();
LOGGER.debug("No local repository in Settings file defined. Using default path: {}", defaultLocation);
return defaultLocation;
}
} catch (SettingsBuildingException e) {
throw new CannotLocateLocalMavenRepositoryException("Unable to parse local Maven settings.", e);
}
}
private boolean isDriveRelativeWindowsPath(File file) {
return !file.isAbsolute() && file.getPath().startsWith(File.separator);
}
// We only cache the result of parsing the Maven settings files, but allow this value to be updated in-flight
// via system properties. This allows the local maven repo to be overridden when publishing to maven
// (see http://forums.gradle.org/gradle/topics/override_location_of_the_local_maven_repo).
private synchronized String parseLocalRepoPathFromMavenSettings() throws SettingsBuildingException {
if (localRepoPathFromMavenSettings == null) {
localRepoPathFromMavenSettings = settingsProvider.getLocalRepository();
}
return localRepoPathFromMavenSettings;
}
private String resolvePlaceholders(String value) {
StringBuffer result = new StringBuffer();
Matcher matcher = PLACEHOLDER_PATTERN.matcher(value);
while (matcher.find()) {
String placeholder = matcher.group(1);
String replacement = placeholder.startsWith("env.") ? system.getEnv(placeholder.substring(4)) : system.getProperty(placeholder);
if (replacement == null) {
throw new CannotLocateLocalMavenRepositoryException(String.format("Cannot resolve placeholder '%s' in value '%s'", placeholder, value));
}
matcher.appendReplacement(result, Matcher.quoteReplacement(replacement));
}
matcher.appendTail(result);
return result.toString();
}
public static interface SystemPropertyAccess {
String getProperty(String name);
String getEnv(String name);
}
public static class CurrentSystemPropertyAccess implements SystemPropertyAccess {
@Override
public String getProperty(String name) {
return System.getProperty(name);
}
@Override
public String getEnv(String name) {
return System.getenv(name);
}
}
}