Republish all hub content types in SharePoint using PowerShell

The idea for this script came in as a request from an anonymous comment I received yesterday on an earlier post showing how to push changes from a content type hub site to site collections using PowerShell.

The script in this article steps through each content type in a content type hub and republishes any that have been previously published. Once you specify the content type hub URL, the script performs the following tasks:

• Checks to see if the URL specified is a content type hub site
• Enumerates through each site content type in the hub and:
• Checks if the content type has been previously published
• If it has, republish it and write a success message to the console
• If it hasn’t, write a message to the console confirming it is not a published content type

To use it, run this script first:

function Republish-HubContentTypes ($CTHubURL)
{
    #Get Content Type site and web objects
    $ctHubSite = Get-SPSite $CTHubURL
    $ctHubWeb = $ctHubSite.RootWeb

    #Check the site is a content type hub
    if ([Microsoft.SharePoint.Taxonomy.ContentTypeSync.ContentTypePublisher]::IsContentTypeSharingEnabled($ctHubSite))
    {
        #Set up ContentTypePublisher object to allow publishing through the Content Type Hub site
        $spCTPublish = New-Object Microsoft.SharePoint.Taxonomy.ContentTypeSync.ContentTypePublisher ($ctHubSite)
       
        #Step through each content type in the content type hub
        $ctHubWeb.ContentTypes | Sort-Object Name | ForEach-Object {
           
            #Has the content type been published?
            if ($spCTPublish.IsPublished($_))
            {
                #Republish content type
                $spCTPublish.Publish($_)
                write-host "Content type" $_.Name "has been republished" -foregroundcolor Green
            }
            else
            {
                write-host "Content type" $_.Name "is not a published content type"
            }
        }
    }
    else
    {
        write-host $CTHubURL "is not a content type hub site"
    }
    #Dispose of site and web objects
    $ctHubWeb.Dispose()
    $ctHubSite.Dispose()
}

Once run, you can call the script by typing the following command:

Republish-HubContentTypes –CTHubURL <ContentTypeHubURL>

For example, type the following command to republish all content types in a hub site with the URL http://portal/sites/CTHub:

Republish-HubContentTypes -CTHubURL http://portal/sites/CTHub

An example output from the script is shown below: