Package 'conan2'

Compare conan installations

Description

Compare conan installations.

Usage

conan_compare(path_lib, curr = 0, prev = -1)

Arguments

path_lib	Path to the library to compare
curr	The previous installation to compare against. Can be a name (see conan_list to get names), a negative number where -n indicates "n installations ago" or a positive number where n indicates "the nth installation". The default value of 0 corresponds to the current installation.
prev	The previous installation to compare against. Can be a name (see conan_list to get names), a negative number where -n indicates "n installations ago" or a positive number where n indicates "the nth installation". The default of -1 indicates the previous installation. Must refer to an installation before curr. Use NULL or -Inf if you want to compare against the empty installation.

Value

An object of class conan_compare, which can be printed nicely.

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Configuration for conan

Description

Configuration for running conan. Some common options and some specific to different provisioning methods.

Usage

conan_configure(
  method,
  ...,
  path_lib,
  path_bootstrap,
  cran = NULL,
  delete_first = FALSE,
  path = ".",
  envvars = NULL
)

Arguments

method	The method to use; currently script, pkgdepends, auto and renv are supported.
...	Additional arguments, method specific. See Details.
path_lib	The library to install into. Could be an absolute or a relative path.
path_bootstrap	The path to a bootstrap library to use. This needs to contain all the packages required for the method you are using. For script this is just remotes, but for pkgdepends it must contain the full recursive dependencies of pkgdepends.
cran	URL for use as the CRAN repo. If not given we will use the RStudio CRAN mirror. This option has no effect when using renv, as the URLs in your lock file determine the locations that packages are fetched from. The intended use of this option is for where a CRAN repo is misbehaving (e.g., returning 500 errors, or has an invalid/incomplete/out of date index). The most likely alternative version to use is cran = "https://cran.r-project.org"
delete_first	Should we delete the library before installing into it?
path	Path to the root where you would run conan from; typically this is the same path is the root of the project, often as the working directory.
envvars	Environment variables to set before running the installation. See Details for format.

Details

Different methods support different additional arguments:

• method script supports the argument script, which is the name of the script to run, defaults to "provision.R"

• method pkgdepends supports the arguments refs, which can be a character vector of references (rather than reading from the file pkgdepends.txt) and policy which is passed through to pkgdepends::new_pkg_installation_proposal().

• method auto takes an argument environment which contains a list of packages to install and source files to scan for dependencies.

• method renv takes no arguments.

Setting environment variables while running the installation comes uses the envvars argument; this system is designed to play well with hipercow, though it does not require it. We expect a data.frame with columns name, value and (optionally) secret. If secret is given, it must be a logical value indicating that value has been encrypted with an rsa public key. If any secret is TRUE, then envvvars must also have an attribute key that contains the path to private rsa key to decrypt the secrets (i.e., attr(envvars, "key")). If you use secret environment variables, then the openssl package must be present in conan's bootstrap.

Value

A list with class conan_config. Do not modify this object.

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Describe a library

Description

Describe a library. This creates a summary of version information from a library. This may be slightly slow on network filesystems with large libraries.

Usage

conan_describe(path_lib)

Arguments

path_lib

Path to the library

Value

A list with class conan_describe. We'll write some tooling to work with these soon!

---

Test if a conan installation is current

Description

List conan installations, and optionally test if they are current.

Usage

conan_list(path_lib, hash = NULL)

Arguments

path_lib	Path to the library to compare
hash	A hash to compare; if given (not NULL) then we highlight installations that match this hash.

Value

A data.frame with columns:

• name: the name of the installation. This might be useful with conan_compare

• time: the time the installation was started

• hash: the installation hash

• method: the method used for the installation

• args: the arguments to the installation (as a list column)

• current: Matches the hash passed in the argument hash

This object also has class conan_list so that it prints nicely, but you can drop this with as.data.frame.

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Run a conan installation

Description

Run a conan installation, in another process, blocking from this process.

Usage

conan_run(config, show_log = TRUE)

Arguments

config	Conan config, from conan_configure()
show_log	Show output from running the script (passed through to callr::rscript as show)

Value

Nothing

---

Write conan installation script

Description

Write a conan installation script

Usage

conan_write(config, path)

Arguments

config	Conan config, from conan_configure()
path	The path to write to

Value

Nothing

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