.applyUrlRemap

Internal. Consults <code>getOption("reproducible.urlRemap")</code>. When that option is a
function, it is called as <code>fn(url, filename)</code> once the target <code>filename</code> has
been resolved (which, for Google Drive URLs, requires the <code>drive_get()</code> lookup
in <code>assessGoogle()</code>). The function may return a replacement URL to download
from instead. A <code>NULL</code> return, a non-character or empty return, a return
identical to the original <code>url</code>, or any error (which emits a <code><a href="/link/warning()?package=reproducible&version=3.2.1" data-mini-rdoc="reproducible::warning()">warning()</a></code>
rather than failing the download) all mean "keep the original url". This way a
broken remap can never break a download.

internal

A collection of high-level, machine- and OS-independent tools
for making reproducible and reusable content in R.
The two workhorse functions are 'Cache()' and 'prepInputs()'.
'Cache()' allows for nested caching, is robust to environments and objects
with environments (like functions), and deals with some classes of
file-backed R objects e.g., from 'terra' and 'raster' packages.
Both functions have been developed to be foundational components of data
retrieval and processing in continuous workflow situations. In both functions,
efforts are made to make the first and subsequent calls of functions have
the same result, but faster at subsequent times by way of checksums
and digesting. Several features are still under development, including
cloud storage of cached objects allowing for sharing between users. Several
advanced options are available, see '?reproducibleOptions()'.

Eliot J B

reproducible

Enhance Reproducibility of R Code

Eliot J B McIntire

Alex M Chubaty

Tati Micheletti

Ceres Barros

Ian Eddy

His Majesty the King in Right of Canada, as represented by the Minister of Natural Resources Canada 

.applyUrlRemap function

<dl><dt>url</dt>
<dd>The original (resolved) URL.</dd>
<dt>filename</dt>
<dd>The resolved target filename, passed to the hook so the user
can remap based on filename, the original url, or both.</dd>
<dt>verbose</dt>
<dd>Numeric verbosity level.</dd></dl>

Arguments

Internal. Consults <code>getOption("reproducible.urlRemap")</code>. When that option is a
function, it is called as <code>fn(url, filename)</code> once the target <code>filename</code> has
been resolved (which, for Google Drive URLs, requires the <code>drive_get()</code> lookup
in <code>assessGoogle()</code>). The function may return a replacement URL to download
from instead. A <code>NULL</code> return, a non-character or empty return, a return
identical to the original <code>url</code>, or any error (which emits a <code><a href='https://rdrr.io/r/base/warning.html'>warning()</a></code>
rather than failing the download) all mean "keep the original url". This way a
broken remap can never break a download.

Apply the user-supplied URL remap hook — .applyUrlRemap

<dl>

<dt>url</dt>
<dd>The original (resolved) URL.</dd>


<dt>filename</dt>
<dd>The resolved target filename, passed to the hook so the user
can remap based on filename, the original url, or both.</dd>


<dt>verbose</dt>
<dd>Numeric verbosity level.</dd>

</dl>

.applyUrlRemap: Apply the user-supplied URL remap hook

Description

Usage

Value

Arguments