rsync Hathi Trust EFs from Hathi Trust — rsync_from

Given a vector of Hathi Trust IDs (generated, for example, from workset_builder), this function attempts to use rsync to download their Extracted Features (per-page word counts and part of speech information) files from Hathi Trust. rsync needs to be installed in your system and accessible via system or system2.

rsync_from_hathi(htids, dir = getOption("hathiTools.ef.dir"))

Arguments

htids: A vector of Hathi Trust IDs, a workset generated by workset_builder, or a data frame with a column named 'htid'.
dir: The directory to save the downloaded EF files to. This defaults to getOption("hathiTools.ef.dir"), which is just "./hathi-ef" on loading.

Value

The return code of system or system2 used to run rsync, which must be installed on your system.

Examples

# \donttest{
res <- workset_builder(c("tylenol", "paracetamol"), volumes_only = FALSE)
rsync_from_hathi(res$htid[1:10], dir = tempdir())
#> [1] 0
# }