pac_lifeduration: Package version life duration at specific Date or for a...

In pacs: Supplementary Tools for R Packages Developers

Package version life duration at specific Date or for a specific version

Description

a package life duration for a certain version or at a specific Date.

Usage

pac_lifeduration(
  pac,
  version = NULL,
  at = NULL,
  lib.loc = .libPaths(),
  repos = biocran_repos(),
  source = c("crandb", "cran")
)

Arguments

pac	character a package name.
version	character package version, By default the newest version is taken. The local repository has priority, it version is available. Default: NULL
at	Date old version of package. Default: NULL
lib.loc	character vector. Is omitted for non NULL version. Default: .libPaths()
repos	character vector URLs of the repositories to use. By default checking CRAN and newest Bioconductor per R version. Default pacs::biocran_repos()
source	character one of c("crandb", "cran"). Using the MEATCRAN CRANDB or the direct web page download from CRAN. Default: "crandb"

Value

difftime, number of days package version was the newest one.

Note

Results are cached for 30 minutes with memoise package. The crandb R packages database is a part of METACRAN project, source: Csárdi G, Salmon M (2022). pkgsearch: Search and Query CRAN R Packages. https://github.com/r-hub/pkgsearch, https://r-hub.github.io/pkgsearch/. For source = "cran"the function will scrap two CRAN URLS. Works only with CRAN packages. Please as a courtesy to the R CRAN, don't overload their servers by constantly using this function.

Examples

## Not run: 
pacs::pac_lifeduration("memoise")
pacs::pac_lifeduration("memoise", source = "cran")
pacs::pac_lifeduration("dplyr", version = "0.8.0")
pacs::pac_lifeduration("dplyr", at = as.Date("2019-02-14"))
# For Bioconductor packages it will work only for the newest per R version and installed ones.
pacs::pac_lifeduration("S4Vectors")

## End(Not run)

pacs documentation built on May 11, 2022, 1:09 a.m.