create_dependencies_file: Create the list of instructions to install dependencies from...

In attachment: Deal with Dependencies

Create the list of instructions to install dependencies from a DESCRIPTION file

Description

Outputs the list of instructions and a "dependencies.R" file with instructions in the "inst/" directory

Usage

create_dependencies_file(
  path = "DESCRIPTION",
  field = c("Depends", "Imports"),
  to = "inst/dependencies.R",
  open_file = TRUE,
  ignore_base = TRUE,
  install_only_if_missing = FALSE
)

Arguments

path	path to the DESCRIPTION file
field	DESCRIPTION field to parse, "Import" and "Depends" by default. Can add "Suggests"
to	path where to save the dependencies file. Set to "inst/dependencies.R" by default. Set to NULL if you do not want the file, but only the instructions as a list of character.
open_file	Logical. Open the file created in an editor
ignore_base	Logical. Whether to ignore package coming with base, as they cannot be installed (default TRUE)
install_only_if_missing	Logical Modify the installation instructions to check, beforehand, if the packages are missing . (default FALSE)

Value

List of R instructions to install all dependencies from a DESCRIPTION file. Side effect: creates a R file containing these instructions.

Examples

# Create a fake package
tmpdir <- tempfile(pattern = "depsfile")
dir.create(tmpdir)
file.copy(system.file("dummypackage",package = "attachment"), tmpdir,
          recursive = TRUE)
dummypackage <- file.path(tmpdir, "dummypackage")

# Create the dependencies commands but no file
create_dependencies_file(
  path = file.path(dummypackage,"DESCRIPTION"),
  to = NULL,
  open_file = FALSE)

# Create the dependencies files in the package
create_dependencies_file(
  path = file.path(dummypackage,"DESCRIPTION"),
  to = file.path(dummypackage, "inst/dependencies.R"),
  open_file = FALSE)
list.files(file.path(dummypackage, "inst"))
# browseURL(dummypackage)

# Clean temp files after this example
unlink(tmpdir, recursive = TRUE)

attachment documentation built on July 2, 2024, 1:07 a.m.