convertHub: Convert old Hub to new Hub structure
In AnnotationHub: Client to access AnnotationHub resources

Description Usage Arguments Value Author(s) See Also Examples

The Hub class was updated to utilize BiocFileCache to allow for file level caching control. This update changed the way files were stored and named. As a convenience for AnnotationHub and ExperimentHub we have provided this helper function to try to re-download files and add them into the BiocFileCache tracking database.

convertHub(oldcachepath=NULL,
           newcachepath=NULL,
           hubType=c("AnnotationHub", "ExperimentHub"),
           proxy=getAnnotationHubOption("PROXY"),
           max.downloads=getAnnotationHubOption("MAX_DOWNLOADS"),
           force=FALSE, verbose=TRUE)

`oldcachepath`	character(1) complete file path location of the old hub to be converted. If left as `NULL`, will use the default path of the old code, which for unix systems was in a user's home directory "~\" and for windows users was in a user's AppData directory "~\AppData".
`newcachepath`	character(1) complete file path to the new location for the cache. If left as `NULL`, will use the new default path which utilizes the `rappdir::user_cache_dir` to deterime the appropriate caching location.
`hubType`	Either AnnotationHub or ExperimentHub. By default assumes AnnotationHub.
`proxy`	proxy connection allowing Internet access, usually through a restrictive firewall. Default: NULL.
`max.downloads`	numeric(1). The integer number of downloads allowed before triggering a warning. This is to help avoid accidental download of a large number of AnnotationHub members
`force`	logical(1). Force re-download of a resource rather than using a cached version.
`verbose`	logical(1). Print out status messages.

character(1). File path of new cache location. If verbose also prints status messages for downloading files and any files that were not redownloaded.

Lori Shepherd

AnnotationHub, getAnnotationHubOption, getInfoOnIds