Declare a dependency on another packet
orderly_dependency(name, query, files)Undefined
The name of the packet to depend on
The query to search for; often this will simply be
the string latest, indicating the most recent version. You may
want a more complex query here though.
Files to copy from the other packet, as a character vector. If the character vector is unnamed, the files listed are copied over without changing their names. If the vector is named however, the names will be used as the destination name for the files.
In either case, if you want to import a directory of files from a
packet, you must refer to the source with a trailing slash
(e.g., c(here = "there/")), which will create the local
directory here/... with files from the upstream packet
directory there/. If you omit the slash then an error will be
thrown suggesting that you add a slash if this is what you
intended.
You can use a limited form of string interpolation in the names of
this argument; using ${variable} will pick up values from
envir and substitute them into your string. This is similar
to the interpolation you might be familiar with from
glue::glue or similar, but much simpler with no concatenation
or other fancy features supported.
Note that there is an unfortunate, but (to us) avoidable
inconsistency here; interpolation of values from your
environment in the query is done by using environment:x and in
the destination filename by doing ${x}.
If you want to copy all files from the packet, use ./ (read
this as the directory of the packet). The trailing slash is
required in order to be consistent with the rules above.
See orderly_run() for some details about how search
options are used to select which locations packets are found from,
and if any data is fetched over the network. If you are running
interactively, this will obviously not work, so you should use
orderly_interactive_set_search_options() to set the
options that this function will respond to.
orderly_example_show("depends")
Run the code above in your browser using DataLab