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OpenGrok Browser (untested)
Without an OpenGrok server/test environment I have had to base this on
the job details.  The diff @change is not possible as the previous
change is not known, instead I have used #rev and #rev-1.

JENKINS-19568
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p4paul committed Oct 7, 2014
1 parent 1e4de9c commit a7e739d924001df4b9fcfc7bf87d68ec111164ec
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package org.jenkinsci.plugins.p4.browsers;

import hudson.Extension;
import hudson.Util;
import hudson.model.Descriptor;
import hudson.scm.RepositoryBrowser;
import hudson.util.FormValidation;

import java.io.IOException;
import java.net.URL;
import java.net.URLEncoder;

import org.jenkinsci.plugins.p4.changes.P4ChangeEntry;
import org.kohsuke.stapler.DataBoundConstructor;
import org.kohsuke.stapler.QueryParameter;

import com.perforce.p4java.core.IJob;
import com.perforce.p4java.core.file.IFileSpec;

public class OpenGrokBrowser extends P4Browser {

private static final long serialVersionUID = 1L;

/**
* The URL of the OpenGrok server, e.g.
* <tt>http://opengrok.libreoffice.org/</tt>
*/
public final URL url;

/**
* The Perforce depot path for the 'project', e.g.
* <tt>//depot/core/main</tt>
*/
public final String depotPath;

/**
* The name of the 'project' in OpenGrok, e.g. <tt>core</tt>
*/
public final String projectName;

@DataBoundConstructor
public OpenGrokBrowser(URL url, String depotPath, String projectName) {
this.url = normalizeToEndWithSlash(url);
this.depotPath = depotPath;
this.projectName = projectName;
}

@Override
public URL getDiffLink(IFileSpec file) throws Exception {
if (file.getEndRevision() <= 1) {
// nothing to diff
return null;
}

String path = getRelativeFilename(file);
int rev2 = file.getEndRevision();
int rev1 = file.getEndRevision() - 1;

String r1 = "r1=" + URLEncoder.encode(path + "#" + rev1, "UTF-8");
String r2 = "r2=" + URLEncoder.encode(path + "#" + rev2, "UTF-8");

return new URL(url, "source/diff/" + projectName + "/build.properties?"
+ r2 + "&" + r1 + getRelativeFilename(file));
}

@Override
public URL getFileLink(IFileSpec file) throws Exception {
return new URL(url, "source/xref/" + projectName + "/"
+ getRelativeFilename(file));
}

@Override
public URL getJobLink(IJob job) throws Exception {
// TODO Auto-generated method stub
return null;
}

private String getRelativeFilename(IFileSpec file) {
String path = file.getDepotPathString();
if (path.startsWith(depotPath)) {
path = path.substring(depotPath.length());
}
return trimHeadSlash(path);
}

@Override
public URL getChangeSetLink(P4ChangeEntry changeSet) throws IOException {
// TODO Auto-generated method stub
return null;
}

@Extension
public static class DescriptorImpl extends Descriptor<RepositoryBrowser<?>> {

@Override
public String getDisplayName() {
return "OpenGrok";
}

public FormValidation doCheck(@QueryParameter final String value) {
String url = Util.fixEmpty(value);
if (url == null) {
return FormValidation.ok();
}
if (!url.startsWith("http://") && !url.startsWith("https://")) {
return FormValidation
.errorWithMarkup("The URL should contain <tt>http://</tt> or <tt>https://</tt>");
}
return FormValidation.ok();
}
}
}
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<j:jelly xmlns:j="jelly:core" xmlns:st="jelly:stapler" xmlns:d="jelly:define" xmlns:l="/lib/layout" xmlns:t="/lib/hudson" xmlns:f="/lib/form">

<f:entry title="URL" field="url">
<f:textbox />
</f:entry>

<f:entry title="${%Project depot path}" field="depotPath">
<f:textbox />
</f:entry>

<f:entry title="${%Project name}" field="projectName">
<f:textbox />
</f:entry>

</j:jelly>

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