ctv-server {ctv}

CRAN Task Views: Tools for Maintainers

Description

Server-side tools for maintaining CRAN task views.

Usage

read.ctv(file, ...)

ctv2html(x, file = NULL, cran = FALSE,
  css = NULL, packageURL = NULL, reposname = "CRAN")

check_ctv_packages(file, repos = TRUE, ...)

repos_update_views(repos = ".", cran = TRUE,
  css = NULL, reposname = "CRAN", ...)

Arguments

file

character specifying a file path: for read.ctv a CRAN task view file, and for ctv2html the corresponding output ‘.html’ file.

x

an object of class "ctv" as returned by read.ctv.

cran

logical. Is the HTML to be hosted on CRAN?

css

character specifying the path and name of the cascade style sheet that should be included in the HTML files (if any). The default is "../CRAN_web.css" if cran = TRUE and NULL otherwise.

packageURL

character specifying the path (relative to the view directory) to the package descriptions. The default is "https://CRAN.R-project.org/package=%s" if cran = FALSE and "../packages/" otherwise.

reposname

character giving the name of the CRAN-style repository, used for generating HTML pages.

repos

character, the base URL of the CRAN-style repository where the ‘Views.rds’ and ‘.html’ files should be installed. The task view files should be located in the ‘web/views/’ directory. If repos = TRUE (default) the official CRAN repository is used and checks for archived packages are included.

...

further arguments passed to available.packages or ctv2html, respectively.

Details

CRAN Task views are generated from an R/Markdown-based file format that is described in the vignette of this package. (Previous versions used an XML-based format which is still fully supported in all functions.)

read.ctv can read a file with a CRAN task view specification and returns an object of class "ctv". This functions requires the availability of the knitr/rmarkdown packages (or the xml2 package, respectively, for the legacy XML format).

ctv2html generates a ‘.html’ file with the information contained in a "ctv" object.

check_ctv_packages checks whether the info and packagelist sections of the task view file are consistent with each other and whether all packages are available from the repository.

repos_update_views reads all task view files in a specified directory, generates a ‘.html’ file for each and an index ‘.html’ file. Furthermore, it stores all "ctv" objects in a "ctvlist" object in a file ‘Views.rds’ that can be queried by install.views or CRAN.views.

Value

repos_update_views returns an object of class "ctvlist" containing the "ctv" objects available.

ctv2html returns invisibly a vector with the HTML code generated.

check_ctv_packages returns a list of character vectors with package names.

read.ctv returns a list of class "ctv" with elements:

name

character, name of the task view (must be a valid name for an R object).

topic

character, topic of the task view.

maintainer

character, maintainer of the task view.

email

character, valid e-mail address (optional).

version

character, version specified via date in ISO format.

url

character, valid task view URL (optional).

source

character, source repository where the task view file is maintained (optional).

info

character, HTML code with informations about the task view.

packagelist

data frame with the columns name (character, name of package) and core (logical, Is priority core?).

links

character vector, HTML code with links for the task view.

otherlinks

character vector, HTML code with links to other resources for the task view.

citation

citation object inheriting from bibentry with information how to cite the task view.

See Also

install.views

Examples

## task view file shipped within the package
ctv <- system.file("ctv", "Econometrics.md", package = "ctv")

if(require("knitr") & require("rmarkdown")) {
## read task view file
x <- read.ctv(ctv)

## print
x
}

## Not run: 
## generate corresponding .html file from task view object
ctv2html(x)
## or equivalently from task view file
ctv2html(ctv)

## check packagelist
check_ctv_packages(ctv)

## End(Not run)