/**
* Like {@link #doInstallNecessaryPlugins(StaplerRequest)} but only checks if everything is
* installed or if some plugins need updates or installation.
*
* <p>This method runs without side-effect. I'm still requiring the ADMINISTER permission since
* XML file can contain various external references and we don't configure parsers properly
* against that.
*
* @since 1.483
*/
@RequirePOST
public JSONArray doPrevalidateConfig(StaplerRequest req) throws IOException {
Jenkins.getInstance().checkPermission(Jenkins.ADMINISTER);
JSONArray response = new JSONArray();
for (Map.Entry<String, VersionNumber> p :
parseRequestedPlugins(req.getInputStream()).entrySet()) {
PluginWrapper pw = getPlugin(p.getKey());
JSONObject j =
new JSONObject()
.accumulate("name", p.getKey())
.accumulate("version", p.getValue().toString());
if (pw == null) { // install new
response.add(j.accumulate("mode", "missing"));
} else if (pw.isOlderThan(p.getValue())) { // upgrade
response.add(j.accumulate("mode", "old"));
} // else already good
}
return response;
}
/**
* Prepares plugins for some expected XML configuration. If the configuration (typically a job’s
* {@code config.xml}) needs some plugins to be installed (or updated), those jobs will be
* triggered. Plugins are dynamically loaded whenever possible. Requires {@link
* Jenkins#ADMINISTER}.
*
* @param configXml configuration that might be uploaded
* @return an empty list if all is well, else a list of submitted jobs which must be completed
* before this configuration can be fully read
* @throws IOException if loading or parsing the configuration failed
* @see ItemGroupMixIn#createProjectFromXML
* @see AbstractItem#updateByXml(javax.xml.transform.Source)
* @see XStream2
* @see hudson.model.UpdateSite.Plugin#deploy(boolean)
* @see PluginWrapper#supportsDynamicLoad
* @see hudson.model.UpdateCenter.DownloadJob.SuccessButRequiresRestart
* @since 1.483
*/
public List<Future<UpdateCenter.UpdateCenterJob>> prevalidateConfig(InputStream configXml)
throws IOException {
Jenkins.getInstance().checkPermission(Jenkins.ADMINISTER);
List<Future<UpdateCenter.UpdateCenterJob>> jobs =
new ArrayList<Future<UpdateCenter.UpdateCenterJob>>();
UpdateCenter uc = Jenkins.getInstance().getUpdateCenter();
// TODO call uc.updateAllSites() when available? perhaps not, since we should not block on
// network here
for (Map.Entry<String, VersionNumber> requestedPlugin :
parseRequestedPlugins(configXml).entrySet()) {
PluginWrapper pw = getPlugin(requestedPlugin.getKey());
if (pw == null) { // install new
UpdateSite.Plugin toInstall = uc.getPlugin(requestedPlugin.getKey());
if (toInstall == null) {
LOGGER.log(WARNING, "No such plugin {0} to install", requestedPlugin.getKey());
continue;
}
if (new VersionNumber(toInstall.version).compareTo(requestedPlugin.getValue()) < 0) {
LOGGER.log(
WARNING,
"{0} can only be satisfied in @{1}",
new Object[] {requestedPlugin, toInstall.version});
}
if (toInstall.isForNewerHudson()) {
LOGGER.log(
WARNING,
"{0}@{1} was built for a newer Jenkins",
new Object[] {toInstall.name, toInstall.version});
}
jobs.add(toInstall.deploy(true));
} else if (pw.isOlderThan(requestedPlugin.getValue())) { // upgrade
UpdateSite.Plugin toInstall = uc.getPlugin(requestedPlugin.getKey());
if (toInstall == null) {
LOGGER.log(WARNING, "No such plugin {0} to upgrade", requestedPlugin.getKey());
continue;
}
if (!pw.isOlderThan(new VersionNumber(toInstall.version))) {
LOGGER.log(
WARNING,
"{0}@{1} is no newer than what we already have",
new Object[] {toInstall.name, toInstall.version});
continue;
}
if (new VersionNumber(toInstall.version).compareTo(requestedPlugin.getValue()) < 0) {
LOGGER.log(
WARNING,
"{0} can only be satisfied in @{1}",
new Object[] {requestedPlugin, toInstall.version});
}
if (toInstall.isForNewerHudson()) {
LOGGER.log(
WARNING,
"{0}@{1} was built for a newer Jenkins",
new Object[] {toInstall.name, toInstall.version});
}
if (!toInstall.isCompatibleWithInstalledVersion()) {
LOGGER.log(
WARNING,
"{0}@{1} is incompatible with the installed @{2}",
new Object[] {toInstall.name, toInstall.version, pw.getVersion()});
}
jobs.add(
toInstall.deploy(
true)); // dynamicLoad=true => sure to throw RestartRequiredException, but at least
// message is nicer
} // else already good
}
return jobs;
}