/*
* The MIT License
*
* Copyright (c) 2009-2010, Sun Microsystems, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package hudson.tools;
import hudson.ExtensionPoint;
import hudson.FilePath;
import hudson.Util;
import hudson.model.Describable;
import jenkins.model.Jenkins;
import hudson.model.Label;
import hudson.model.Node;
import hudson.model.TaskListener;
import java.io.File;
import java.io.IOException;
import org.kohsuke.stapler.DataBoundConstructor;
/**
* An object which can ensure that a generic {@link ToolInstallation} in fact exists on a node.
*
* The subclass should have a {@link ToolInstallerDescriptor}.
* A {@code config.jelly} should be provided to customize specific fields;
* {@code <t:label xmlns:t="/hudson/tools"/>} to customize {@code label}.
* @see <a href="http://wiki.jenkins-ci.org/display/JENKINS/Tool+Auto-Installation">Tool Auto-Installation</a>
* @since 1.305
*/
public abstract class ToolInstaller implements Describable<ToolInstaller>, ExtensionPoint {
private final String label;
protected transient ToolInstallation tool;
/**
* Subclasses should pass these parameters in using {@link DataBoundConstructor}.
*/
protected ToolInstaller(String label) {
this.label = Util.fixEmptyAndTrim(label);
}
/**
* Called during the initialization to tell {@link ToolInstaller} what {@link ToolInstallation}
* it is configured against.
*/
protected void setTool(ToolInstallation t) {
this.tool = t;
}
/**
* Label to limit which nodes this installation can be performed on.
* Can be null to not impose a limit.
*/
public final String getLabel() {
return label;
}
/**
* Checks whether this installer can be applied to a given node.
* (By default, just checks the label.)
*/
public boolean appliesTo(Node node) {
Label l = Jenkins.getInstance().getLabel(label);
return l == null || l.contains(node);
}
/**
* Ensure that the configured tool is really installed.
* If it is already installed, do nothing.
* Called only if {@link #appliesTo(Node)} are true.
* @param tool the tool being installed
* @param node the computer on which to install the tool
* @param log any status messages produced by the installation go here
* @return the (directory) path at which the tool can be found,
* typically coming from {@link #preferredLocation}
* @throws IOException if installation fails
* @throws InterruptedException if communication with a slave is interrupted
*/
public abstract FilePath performInstallation(ToolInstallation tool, Node node, TaskListener log) throws IOException, InterruptedException;
/**
* Convenience method to find a location to install a tool.
* @param tool the tool being installed
* @param node the computer on which to install the tool
* @return {@link ToolInstallation#getHome} if specified, else a path within the local
* Jenkins work area named according to {@link ToolInstallation#getName}
* @since 1.310
*/
protected final FilePath preferredLocation(ToolInstallation tool, Node node) {
if (node == null) {
throw new IllegalArgumentException("must pass non-null node");
}
String home = Util.fixEmptyAndTrim(tool.getHome());
if (home == null) {
home = sanitize(tool.getDescriptor().getDisplayName()) + File.separatorChar + sanitize(tool.getName());
}
FilePath root = node.getRootPath();
if (root == null) {
throw new IllegalArgumentException("Node " + node.getDisplayName() + " seems to be offline");
}
return root.child("tools").child(home);
}
private String sanitize(String s) {
return s != null ? s.replaceAll("[^A-Za-z0-9_.-]+", "_") : null;
}
public ToolInstallerDescriptor<?> getDescriptor() {
return (ToolInstallerDescriptor) Jenkins.getInstance().getDescriptorOrDie(getClass());
}
}