Package 'rstudioapi' reference manual

Title:	Safely Access the RStudio API
Description:	Access the RStudio API (if available) and provide informative error messages when it's not.
Authors:	Kevin Ushey [aut, cre], JJ Allaire [aut], Hadley Wickham [aut], Gary Ritchie [aut], RStudio [cph]
Maintainer:	Kevin Ushey <[email protected]>
License:	MIT + file LICENSE
Version:	0.16.0.9000
Built:	2024-06-30 05:11:45 UTC
Source:	https://github.com/rstudio/rstudioapi

Add a Custom Editor Theme

Description

Adds a custom editor theme to RStudio and returns the name of the newly added theme.

Usage

addTheme(themePath, apply = FALSE, force = FALSE, globally = FALSE)
addTheme(themePath, apply = FALSE, force = FALSE, globally = FALSE)

Arguments

`themePath`	A full or relative path or URL to an `rstheme` or `tmtheme` to be added.
`apply`	Whether to immediately apply the newly added theme. Setting this to `TRUE` has the same impact as running `{ rstudioapi::addTheme(<themePath>); rstudioapi::applyTheme(<themeName>) }`. Default: `FALSE`.
`force`	Whether to force the operation and overwrite an existing file with the same name. Default: `FALSE`.
`globally`	Whether to install this theme for the current user or all users. If set to `TRUE` this will attempt to install the theme for all users, which may require administrator privileges. Default: `FALSE`.

Note

The addTheme function was introduced in RStudio 1.2.879.

Apply an Editor Theme to RStudio

Description

Applies the specified editor theme to RStudio.

Usage

applyTheme(name)
applyTheme(name)

Arguments

name

The unique name of the theme to apply.

Note

The applyTheme function was introduced in RStudio 1.2.879.

Ask the user for a password interactively

Description

Ask the user for a password interactively.

Usage

askForPassword(prompt = "Please enter your password")
askForPassword(prompt = "Please enter your password")

Arguments

prompt

The prompt to be shown to the user.

Details

RStudio also sets the global askpass option to the rstudioapi::askForPassword function so that it can be invoked in a front-end independent manner.

Note

The askForPassword function was added in version 0.99.853 of RStudio.

Examples


## Not run: 
rstudioapi::askForPassword("Please enter your password")

## End(Not run)

## Not run: 
rstudioapi::askForPassword("Please enter your password")

## End(Not run)

Prompt user for secret

Description

Request a secret from the user. If the keyring package is installed, it will be used to cache requested secrets.

Usage

askForSecret(
  name,
  message = paste(name, ":", sep = ""),
  title = paste(name, "Secret")
)
askForSecret(
  name,
  message = paste(name, ":", sep = ""),
  title = paste(name, "Secret")
)

Arguments

`name`	The name of the secret.
`message`	A character vector with the contents to display in the main dialog area.
`title`	The title to display in the dialog box.

Note

The askForSecret function was added in version 1.1.419 of RStudio.

File an RStudio Bug Report

Description

A utility function to assist with the filing of an RStudio bug report. This function will pre-populate a template with information useful in understanding your reported bug.

Usage

bugReport()
bugReport()

Build Tools

Description

Check, install, and use build tools as required.

Usage

buildToolsCheck()

buildToolsInstall(action)

buildToolsExec(expr)
buildToolsCheck()

buildToolsInstall(action)

buildToolsExec(expr)

Arguments

`action`	The action (as a string) being taken that will require installation of build tools.
`expr`	An R expression (unquoted) to be executed with build tools available and on the `PATH`.

Details

These functions are intended to be used together – one should first check whether build tools are available, and when not, prompt for installation. For example:

compile_model <- function(...) {

  if (rstudioapi::isAvailable()) {

    if (!rstudioapi::buildToolsCheck())
      rstudioapi::buildToolsInstall("Model compilation")

    rstudioapi::buildToolsExec({
      # code requiring build tools here
    })

  }
}

The action parameter is used to communicate (with a prompt) the operation being performed that requires build tool installation. Setting it to NULL or the empty string will suppress that prompt.

Note

The buildToolsCheck(), buildToolsInstall(), and buildToolsExec() functions were added with version 1.2.962 of RStudio.

Call an RStudio API function

Description

This function will return an error if RStudio is not running, or the function is not available. If you want to fall back to different behavior, use hasFun.

Usage

callFun(fname, ...)
callFun(fname, ...)

Arguments

`fname`	name of the RStudio function to call.
`...`	Other arguments passed on to the function

Examples


if (rstudioapi::isAvailable()) {
  rstudioapi::callFun("versionInfo")
}

if (rstudioapi::isAvailable()) {
  rstudioapi::callFun("versionInfo")
}

Register and Unregister a Chunk Callback

Description

Usage

registerChunkCallback(callback)

unregisterChunkCallback(id = NULL)
registerChunkCallback(callback)

unregisterChunkCallback(id = NULL)

Arguments

`callback`	A callback function. See Chunk Callbacks for more details.
`id`	A unique identifier.

Value

For registerChunkCallback(), a unique identifier. That identifier can be passed to unreigsterChunkCallback() to de-register a previously-registered callback.

Chunk Callbacks

The callback argument should be a function accepting two parameters:

chunkName: The chunk label,
chunkCode: The code within the chunk.

The function should return an R list of HTML outputs, to be displayed after that chunk has been executed.

Convert a tmTheme to an RStudio Theme

Description

Converts a tmTheme to an rstheme and optionally adds and applies it to RStudio and returns the name of the theme.

Usage

convertTheme(
  themePath,
  add = TRUE,
  outputLocation = NULL,
  apply = FALSE,
  force = FALSE,
  globally = FALSE
)
convertTheme(
  themePath,
  add = TRUE,
  outputLocation = NULL,
  apply = FALSE,
  force = FALSE,
  globally = FALSE
)

Arguments

`themePath`	A full or relative path to the `tmTheme` file to be converted.
`add`	Whether to add the newly converted theme to RStudio. Setting this to true will have the same impact as running `{ rstudioapi::convertTheme(<themePath>, outputLocation = <convertedThemePath>); rstudioapi::addTheme(<convertedThemePath>) }`. Default: `TRUE`.
`outputLocation`	A full or relative path where a copy of the converted theme will be saved. If this value is `NULL`, no copy will be saved. Default: `NULL`.
`apply`	Whether to immediately apply the newly added theme. This paramater cannot be set to `TRUE` if `add` is set to `FALSE`. Setting this and `add` to `TRUE` has the same impact as running `{ rstudioapi::convertTheme(<themePath>, outputLocation = <convertedThemePath>); rstudioapi::addTheme(<convertedThemePath>); rstudioapi::applyTheme(<themeName>) }`. Default: `FALSE`.
`force`	Whether to force the operation and overwrite an existing file with the same name. Default: `FALSE`.
`globally`	Whether to install this theme for the current user or all users. If set to `TRUE` this will attempt to install the theme for all users, which may require administrator privileges. Only applies when `add` is `TRUE`. Default: `FALSE`.

Note

The convertTheme function was introduced in RStudio 1.2.879.

Create a Project Template

Description

Create a project template. See https://rstudio.github.io/rstudio-extensions/rstudio_project_templates.html for more information.

Usage

createProjectTemplate(
  package = ".",
  binding,
  title,
  subtitle = paste("Create a new", title),
  caption = paste("Create", title),
  icon = NULL,
  open_files = NULL,
  overwrite = FALSE,
  edit = TRUE
)
createProjectTemplate(
  package = ".",
  binding,
  title,
  subtitle = paste("Create a new", title),
  caption = paste("Create", title),
  icon = NULL,
  open_files = NULL,
  overwrite = FALSE,
  edit = TRUE
)

Arguments

`package`	The path to an package sources.
`binding`	The skeleton function to associate with this project template. This is the name of the function that will be used to initialize the project.
`title`	The title to be shown within the New Project... wizard.
`subtitle`	(optional) The subtitle to be shown within the New Project... wizard.
`caption`	(optional) The caption to be shown on the landing page for this template.
`icon`	(optional) The path to an icon, on disk, to be used in the dialog. Must be an `.png` of size less than 64KB.
`open_files`	(optional) Files that should be opened by RStudio when the project is generated. Shell-style globs can be used to indicate when multiple files matching some pattern should be opened – for example, OpenFiles: R/*.R would indicate that RStudio should open all .R files within the R folder of the generated project.
`overwrite`	Boolean; overwrite a pre-existing template file if one exists?
`edit`	Boolean; open the file for editting after creation?

Interact with RStudio's Dictionaries

Description

Interact with the hunspell dictionaries used by RStudio for spell checking.

Usage

dictionariesPath()

userDictionariesPath()
dictionariesPath()

userDictionariesPath()

Details

dictionariesPath() gives a path to the dictionaries installed and distributed with RStudio.

userDictionariesPath() gives the path where users can provide their own custom hunspell dictionaries.

Note

The dictionariesPath() and userDictionariesPath() functions were introduced with RStudio 1.2.1202.

Create a Document Position

Description

Creates a document_position, which can be used to indicate e.g. the row + column location of the cursor in a document.

Usage

document_position(row, column)

is.document_position(x)

as.document_position(x)
document_position(row, column)

is.document_position(x)

as.document_position(x)

Arguments

`row`	The row (using 1-based indexing).
`column`	The column (using 1-based indexing).
`x`	An object coercable to `document_position`.

Create a Range

Description

A document_range is a pair of document_position objects, with each position indicating the start and end of the range, respectively.

Usage

document_range(start, end = NULL)

is.document_range(x)

as.document_range(x)
document_range(start, end = NULL)

is.document_range(x)

as.document_range(x)

Arguments

`start`	A `document_position` indicating the start of the range.
`end`	A `document_position` indicating the end of the range.
`x`	An object coercable to `document_range`.

Value

An list with class document_range and fields:

`start:`	The start position.
`end:`	The end position.

Execute Command

Description

Executes an arbitrary RStudio command.

Usage

executeCommand(commandId, quiet = FALSE)
executeCommand(commandId, quiet = FALSE)

Arguments

`commandId`	The ID of the command to execute.
`quiet`	Whether to show an error if the command does not exist.

Details

Most menu commands and many buttons in RStudio can be invoked from the API using this method.

The quiet command governs the behavior of the function when the command does not exist. By default, an error is shown if you attempt to invoke a non-existent command. You should set this to TRUE when invoking a command that may not be available if you don't want your users to see an error.

The command is run asynchronously, so no status is returned.

See the RStudio Server Professional Administration Guide for a list of supported command IDs.

Note

The executeCommand function was introduced in RStudio 1.2.1261.

Select a file / folder

Description

Prompt the user for the path to a file or folder, using the system file dialogs with RStudio Desktop, and RStudio's own dialogs with RStudio Server.

Usage

selectFile(
  caption = "Select File",
  label = "Select",
  path = getActiveProject(),
  filter = "All Files (*)",
  existing = TRUE
)

selectDirectory(
  caption = "Select Directory",
  label = "Select",
  path = getActiveProject()
)
selectFile(
  caption = "Select File",
  label = "Select",
  path = getActiveProject(),
  filter = "All Files (*)",
  existing = TRUE
)

selectDirectory(
  caption = "Select Directory",
  label = "Select",
  path = getActiveProject()
)

Arguments

`caption`	The window title.
`label`	The label to use for the 'Accept' / 'OK' button.
`path`	The initial working directory, from which the file dialog should begin browsing. Defaults to the current RStudio project directory.
`filter`	A glob filter, to be used when attempting to open a file with a particular extension. For example, to scope the dialog to R files, one could use `R Files (*.R)` here.
`existing`	Boolean; should the file dialog limit itself to existing files on the filesystem, or allow the user to select the path to a new file?

Details

When the selected file resolves within the user's home directory, RStudio will return an aliased path – that is, prefixed with ~/.

Note

The selectFile and selectDirectory functions were added in version 1.1.287 of RStudio.

Navigate to a Directory in the Files Pane

Description

Navigate to a directory in the Files pane. The contents of that directory will be listed and shown in the Files pane.

Usage

filesPaneNavigate(path)
filesPaneNavigate(path)

Arguments

path

The filesystem path to be shown.

Retrieve path to active RStudio project

Description

Get the path to the active RStudio project (if any). If the path contains non-ASCII characters, it will be UTF-8 encoded.

Usage

getActiveProject()
getActiveProject()

Value

The path to the current project, or NULL if no project is currently open.

Note

The getActiveProject function was added in version 0.99.854 of RStudio.

OAuth2 Tokens for Delegated Azure Resources

Description

When Workbench is using Azure Active Directory for sign-in, this function can return an OAuth2 token for a service Workbench users have delegated access to. This requires configuring delegated permissions in Azure itself.

Usage

getDelegatedAzureToken(resource)
getDelegatedAzureToken(resource)

Arguments

resource

The name of an Azure resource or service, normally a URL.

Examples

## Not run: 
getDelegatedAzureToken("https://storage.azure.com")

## End(Not run)
## Not run: 
getDelegatedAzureToken("https://storage.azure.com")

## End(Not run)

Get RStudio Package Dependencies

Description

Gets a list of the all the R packages that RStudio depends on in some way.

Usage

getRStudioPackageDependencies()
getRStudioPackageDependencies()

Details

The data frame of package dependencies contains the following columns:

name: The name of the R package.
version: The required minimum version of the R package.
location: Where RStudio expects the package to be, cran for a CRAN-like repository or embedded for development packages embedded in RStudio itself.
source: Whether the package should be installed from source.

Value

A data frame containing a row per R package.

Note

The getRStudioPackageDependencies function was introduced in RStudio 1.3.525.

Retrieve Themes

Description

Retrieves a list with information about the current color theme used by RStudio.

Usage

getThemeInfo()
getThemeInfo()

Details

A list is returned with the following elements:

editor: The name of the current editor theme, such as Textmate.
global: The name of the current global theme. One of Modern, Classic, or Sky.
dark: TRUE if the editor theme is dark, FALSE otherwise.
foreground: The current editor theme's default text foreground color, formatted as a CSS-compatible color string, such as rgb(1, 22, 39). Supported since RStudio 1.2.1214.
background: The current editor theme's default text background color, formatted as a CSS-compatible color string. Supported since RStudio 1.2.1214.

Get Theme List

Description

Retrieves a list of the names of all the editor themes installed for RStudio.

Usage

getThemes()
getThemes()

Note

The getThemes function was introduced in RStudio 1.2.879.

Return the current version of the RStudio API

Description

Return the current version of the RStudio API

Usage

getVersion()
getVersion()

Value

A numeric_version which you can compare to a string and get correct results.

Examples


## Not run: 
if (rstudioapi::getVersion() < "0.98.100") {
  message("Your version of RStudio is quite old")
}

## End(Not run)

## Not run: 
if (rstudioapi::getVersion() < "0.98.100") {
  message("Your version of RStudio is quite old")
}

## End(Not run)

Check if console supports ANSI color escapes.

Description

Check if the RStudio console supports ANSI color escapes.

Usage

hasColorConsole()
hasColorConsole()

Value

TRUE if ANSI color escapes are supported; FALSE otherwise.

Note

The hasColorConsole function was added in version 1.1.216 of RStudio.

Examples


## Not run: 
if (rstudioapi::hasColorConsole()) {
  message("RStudio console supports ANSI color sequences.")
}


## End(Not run)


## Not run: 
if (rstudioapi::hasColorConsole()) {
  message("RStudio console supports ANSI color sequences.")
}


## End(Not run)

Exists/get for RStudio functions

Description

These are specialized versions of get and exists that look in the rstudio package namespace. If RStudio is not running, hasFun will return FALSE.

Usage

hasFun(name, version_needed = NULL, ...)

findFun(name, version_needed = NULL, ...)
hasFun(name, version_needed = NULL, ...)

findFun(name, version_needed = NULL, ...)

Arguments

`name`	name of object to look for
`version_needed`	An optional version specification. If supplied, ensures that RStudio is at least that version. This is useful if function behavior has changed over time.
`...`	other arguments passed on to `exists` and `get`

Examples


rstudioapi::hasFun("viewer")

rstudioapi::hasFun("viewer")

Highlight UI Elements within the RStudio IDE

Description

This function can be used to highlight UI elements within the RStudio IDE. UI elements can be selected using query selectors; most commonly, one should choose to highlight elements based on their IDs when available.

Usage

highlightUi(queries)
highlightUi(queries)

Arguments

queries

A list of "query" objects. Each query should be a list with entries "query" and "parent". See Queries for more details.

Details

The tool at:

Help -> Diagnostics -> Show DOM Elements

can be useful for identifying the classes and IDs assigned to the different elements within RStudio.

Queries

Elements are selected using the same queries as through the web querySelectorAll() API. See https://developer.mozilla.org/en-US/docs/Web/API/Document/querySelectorAll for more details.

For example, to highlight the Save icon within the Source pane, one might use:

rstudioapi::highlightUi("#rstudio_tb_savesourcedoc")

In some cases, multiple UI elements need to be highlighted – e.g. if you want to highlight both a menu button, and a menu item within the menu displayed after the button is pressed. We'll use the Environment Pane's Import Dataset button as an example. To highlight the ⁠From Text (readr)⁠ command, you might use:

rstudioapi::highlightUi( list(
list(query = "#rstudio_mb_import_dataset", parent = 0L), list(query =
"#rstudio_label_from_text_readr_command", parent = 1L) ) )

Note

The highlightUi function was introduced in RStudio 1.3.658.

Examples


## Not run: rstudioapi::highlightUi("#rstudio_workbench_panel_git")

# clear current highlights
## Not run: rstudioapi::highlightUi("")

# highlight within an RMD
## Not run: rstudioapi::highlightUi(".rstudio_chunk_setup .rstudio_run_chunk")

# Optionally provide a callback adjacent to 
# the queries that will be executed when the 
# highlighted element is clicked on.
## Not run: rstudioapi::highlightUi(
  list(
    list(
      query="#rstudio_workbench_panel_git", 
      callback="rstudioapi::highlightUi('')"
    )
  )
)
## End(Not run)

## Not run: rstudioapi::highlightUi("#rstudio_workbench_panel_git")

# clear current highlights
## Not run: rstudioapi::highlightUi("")

# highlight within an RMD
## Not run: rstudioapi::highlightUi(".rstudio_chunk_setup .rstudio_run_chunk")

# Optionally provide a callback adjacent to 
# the queries that will be executed when the 
# highlighted element is clicked on.
## Not run: rstudioapi::highlightUi(
  list(
    list(
      query="#rstudio_workbench_panel_git", 
      callback="rstudioapi::highlightUi('')"
    )
  )
)
## End(Not run)

Check if RStudio is running

Description

Check if RStudio is running.

Usage

isAvailable(version_needed = NULL, child_ok = FALSE)

verifyAvailable(version_needed = NULL)
isAvailable(version_needed = NULL, child_ok = FALSE)

verifyAvailable(version_needed = NULL)

Arguments

`version_needed`	An optional version specification. If supplied, ensures that RStudio is at least that version.
`child_ok`	Boolean; check if the current R process is a child process of the main RStudio session? This can be useful for e.g. RStudio Jobs, where you'd like to communicate back with the main R session from a child process through `rstudioapi`.

Value

isAvailable a boolean; verifyAvailable an error message if RStudio is not running

Examples


rstudioapi::isAvailable()
## Not run: rstudioapi::verifyAvailable()

rstudioapi::isAvailable()
## Not run: rstudioapi::verifyAvailable()

Detect RStudio Jobs

Description

Use this function to detect whether RStudio is running an R "job". These jobs are normally used for actions taken in the Jobs tab, as well as within the R build pane.

Usage

isJob()

isBackgroundJob()

isWorkbenchJob()
isJob()

isBackgroundJob()

isWorkbenchJob()

Details

isWorkbenchJob() is used to detect scripts which have been launched as Workbench jobs, and is only available in RStudio Workbench 2024.04 or newer. These jobs use the RStudio Launcher to run R scripts on remote clusters, as opposed to isBackgroundJob(), which is used to detect background jobs which are run on the local machine.

This function is primarily intended to be used by package authors, who need to customize the behavior of their methods when run within an RStudio job.

Value

Boolean; TRUE if this is an RStudio job.

Add a Job

Description

Inform RStudio's Background Jobs pane that a job has been added.

Usage

jobAdd(
  name,
  status = "",
  progressUnits = 0L,
  actions = NULL,
  running = FALSE,
  autoRemove = TRUE,
  show = TRUE
)
jobAdd(
  name,
  status = "",
  progressUnits = 0L,
  actions = NULL,
  running = FALSE,
  autoRemove = TRUE,
  show = TRUE
)

Arguments

`name`	The background job's name.
`status`	The initial status text for the job; optional.
`progressUnits`	The integer number of units of work in the job; for example, `100L` if the job's progress is expressed in percentages. Use `0L` if the number of units of work is unknown.
`actions`	A list of actions that can be performed on the job (see Actions).
`running`	Whether the job is currently running.
`autoRemove`	Whether to remove the job from the Background Jobs pane when it's complete.
`show`	Whether to show the job in the Jobs pane.

Value

An ID representing the newly added job, used as a handle to provide further updates of the job's status.

Actions

The actions parameter is a named list of functions that the user can invoke on the job; for example: actions = list(stop = function(id) { ... }). The function will be passed a parameter named id with the job ID that invoked it.

There are three special action names:

stop: If there is an action named stop, then the job will have a Stop button in in the Jobs pane, and pressing that button will invoke the stop action.
info: If there is an action named info, then the job will have an informational link in the Background Jobs pane rather than an output display, and clicking the link will invoke the info action.
replay: If there is an action named replay, then the job will have a Replay button that displays when the job has finished running. Clicking the button will invoke the replay action.

Add Background Job Output

Description

Adds text output to a background job.

Usage

jobAddOutput(job, output, error = FALSE)
jobAddOutput(job, output, error = FALSE)

Arguments

`job`	The ID of the job that has emitted text.
`output`	The text output emitted by the job.
`error`	Whether the output represents an error.

Add Background Job Progress

Description

Adds incremental progress units to a background job.

Usage

jobAddProgress(job, units)
jobAddProgress(job, units)

Arguments

`job`	The ID of the job to update progress for.
`units`	The integer number of new progress units completed.

Get Background Job State

Description

Get Background Job State

Usage

jobGetState(job)
jobGetState(job)

Arguments

job

The ID of the job.

List Background Jobs

Description

List any registered background jobs.

Usage

jobList()
jobList()

Remove a Background Job

Description

Remove a background job from RStudio's Background Jobs pane.

Usage

jobRemove(job)
jobRemove(job)

Arguments

job

The ID of the job to remove.

Run R Script As Background Job

Description

Starts an R script as a background job.

Usage

jobRunScript(
  path,
  name = NULL,
  encoding = "unknown",
  workingDir = NULL,
  importEnv = FALSE,
  exportEnv = ""
)
jobRunScript(
  path,
  name = NULL,
  encoding = "unknown",
  workingDir = NULL,
  importEnv = FALSE,
  exportEnv = ""
)

Arguments

`path`	The path to the R script to be run.
`name`	A name for the background job. When `NULL` (the default), the filename of the script is used as the job name.
`encoding`	The text encoding of the script, if known.
`workingDir`	The working directory in which to run the job. When `NULL` (the default), the parent directory of the R script is used.
`importEnv`	Whether to import the global environment into the job.
`exportEnv`	The name of the environment in which to export the R objects created by the job. Use `""` (the default) to skip export, `"R_GlobalEnv"`' to export to the global environment, or the name of an environment object to create an object with that name.

Set Background Job Progress

Description

Updates the progress for a background job.

Usage

jobSetProgress(job, units)
jobSetProgress(job, units)

Arguments

`job`	The ID of the job to set progress for.
`units`	The integer number of total units of work completed so far.

Set Background Job State

Description

Changes the state of a background job.

Usage

jobSetState(
  job,
  state = c("idle", "running", "succeeded", "cancelled", "failed")
)
jobSetState(
  job,
  state = c("idle", "running", "succeeded", "cancelled", "failed")
)

Arguments

`job`	The ID of the job on which to change state.
`state`	The new job state.

States

The following states are supported:

idle: The job is waiting to run.
running: The job is actively running.
succeeded: The job has finished successfully.
cancelled: The job was cancelled.
failed: The job finished but did not succeed.

Set Background Job Status

Description

Update a background job's informational status text.

Usage

jobSetStatus(job, status)
jobSetStatus(job, status)

Arguments

`job`	The ID of the job to update.
`status`	Text describing job's new status.

Check if Workbench Launcher is Available

Description

Check if the Workbench launcher is available and configured to support Workbench jobs; that is, jobs normally launched by the user through the RStudio IDE's user interface.

Usage

launcherAvailable()
launcherAvailable()

Define a Workbench Launcher Configuration

Description

Define a Workbench launcher configuration, suitable for use with the config argument to launcherSubmitJob().

Usage

launcherConfig(name, value = NULL)
launcherConfig(name, value = NULL)

Arguments

`name`	The name of the launcher configuration.
`value`	The configuration value. Must either be an integer, float, or string.

Define a Workbench Launcher Container

Description

Define a launcher container, suitable for use with the container argument to launcherSubmitJob().

Usage

launcherContainer(image, runAsUserId = NULL, runAsGroupId = NULL)
launcherContainer(image, runAsUserId = NULL, runAsGroupId = NULL)

Arguments

`image`	The container image to use.
`runAsUserId`	The user id to run as within the container. Defaults to the container-specified user.
`runAsGroupId`	The group id to run as within the container. Defaults to the container-specified group.

Interact with (Control) a Workbench Job

Description

Interact with a Workbench job.

Usage

launcherControlJob(
  jobId,
  operation = c("suspend", "resume", "stop", "kill", "cancel")
)
launcherControlJob(
  jobId,
  operation = c("suspend", "resume", "stop", "kill", "cancel")
)

Arguments

`jobId`	The job id.
`operation`	The operation to execute. The operation should be one of `c("suspend", "resume", "stop", "kill", "cancel")`. Note that different launcher plugins support different subsets of these operations – consult your launcher plugin documentation to see which operations are supported.

Retrieve Workbench Launcher Information

Description

Retrieve information about the Workbench launcher, as well as the different clusters that the launcher has been configured to use.

Usage

launcherGetInfo()
launcherGetInfo()

Retrieve Workbench Job Information

Description

Retrieve information on a Workbench job with id jobId.

Usage

launcherGetJob(jobId)
launcherGetJob(jobId)

Arguments

jobId

The id of a Workbench job.

Retrieve Workbench Job Information

Description

Retrieve information on Workbench jobs.

Usage

launcherGetJobs(
  statuses = NULL,
  fields = NULL,
  tags = NULL,
  includeSessions = FALSE
)
launcherGetJobs(
  statuses = NULL,
  fields = NULL,
  tags = NULL,
  includeSessions = FALSE
)

Arguments

`statuses`	Return only jobs whose status matches one of `statuses`. Valid statuses are: Pending, Running, Suspended, Failed, Finished, Killed, Canceled. When `NULL`, all jobs are returned.
`fields`	Return a subset of fields associated with each job object. When `NULL`, all fields associated with a particular job are returned.
`tags`	An optional set of tags. Only jobs that have been assigned one of these requested tags will be returned.
`includeSessions`	Boolean; include jobs which are also operating as RStudio R sessions?

Define a Workbench Launcher Host Mount

Description

Define a launcher host mount, suitable for use with the mounts argument to launcherSubmitJob(). This can be used to mount a path from the host into the generated container.

Usage

launcherHostMount(path, mountPath, readOnly = TRUE)
launcherHostMount(path, mountPath, readOnly = TRUE)

Arguments

`path`	The host path to be mounted.
`mountPath`	The destination path for the mount in the container.
`readOnly`	Boolean; should the path be mounted read-only?

Define a Workbench Launcher NFS Mount

Description

Define a launcher NFS mount, suitable for use with the mounts argument to launcherSubmitJob(). This can be used to mount a path from a networked filesystem into a newly generated container.

Usage

launcherNfsMount(host, path, mountPath, readOnly = TRUE)
launcherNfsMount(host, path, mountPath, readOnly = TRUE)

Arguments

`host`	The host name, or IP address, of the NFS server.
`path`	The NFS path to be mounted.
`mountPath`	The destination path for the mount in the container.
`readOnly`	Boolean; should the path be mounted read-only?

Define a Workbench Launcher Placement Constraint

Description

Define a launcher placement constraint, suitable for use with the placementConstraints argument to launcherSubmitJob().

Usage

launcherPlacementConstraint(name, value = NULL)
launcherPlacementConstraint(name, value = NULL)

Arguments

`name`	The name of this placement constraint.
`value`	The value of the constraint. A job will only be placed on a requested node if the requested placement constraint is present.

Define a Workbench Launcher Resource Limit

Description

Define a launcher resource limit, suitable for use with the resourceLimits argument to launcherSubmitJob().

Usage

launcherResourceLimit(type, value)
launcherResourceLimit(type, value)

Arguments

`type`	The resource limit type. Must be one of cpuCount, cpuFrequency, cpuSet, cpuTime, memory, memorySwap. Different launcher plugins may support different subsets of these resource limit types; please consult the plugin documentation to learn which limits are supported.
`value`	The formatted value of the requested limit.

Submit a Workbench Job

Description

Submit a Workbench job. See https://docs.posit.co/job-launcher/latest/index.html for more information.

Usage

launcherSubmitJob(
  name,
  cluster = "Local",
  tags = NULL,
  command = NULL,
  exe = NULL,
  args = NULL,
  environment = NULL,
  stdin = NULL,
  stdoutFile = NULL,
  stderrFile = NULL,
  workingDirectory = NULL,
  host = NULL,
  container = NULL,
  exposedPorts = NULL,
  mounts = NULL,
  placementConstraints = NULL,
  resourceLimits = NULL,
  queues = NULL,
  config = NULL,
  user = Sys.getenv("USER"),
  applyConfigSettings = TRUE
)
launcherSubmitJob(
  name,
  cluster = "Local",
  tags = NULL,
  command = NULL,
  exe = NULL,
  args = NULL,
  environment = NULL,
  stdin = NULL,
  stdoutFile = NULL,
  stderrFile = NULL,
  workingDirectory = NULL,
  host = NULL,
  container = NULL,
  exposedPorts = NULL,
  mounts = NULL,
  placementConstraints = NULL,
  resourceLimits = NULL,
  queues = NULL,
  config = NULL,
  user = Sys.getenv("USER"),
  applyConfigSettings = TRUE
)

Arguments

`name`	A descriptive name to assign to the job.
`cluster`	The name of the cluster this job should be submitted to.
`tags`	A set of user-defined tags, used for searching and querying jobs.
`command`	The command to run within the job. This is executed via the system shell. Only one of command or exe should be specified.
`exe`	The (fully pathed) executable to run within the job. Only one of `command` or `exe` should be specified.
`args`	An array of arguments to pass to the command / executable.
`environment`	A list of environment variables to be set for processes launched with this job.
`stdin`	Data to be written to stdin when the job process is launched.
`stdoutFile`	The file used for the job's generated standard output. Not all launcher plugins support this parameter.
`stderrFile`	The file used for the job's generated standard error. Not all launcher plugins support this parameter.
`workingDirectory`	The working directory to be used by the command / executable associated with this job.
`host`	The host that the job is running on, or the desired host during job submission.
`container`	The container to be used for launched jobs.
`exposedPorts`	The ports that are exposed by services running on a container. Only applicable to systems that support containers.
`mounts`	A list of mount points. See `launcherHostMount()` and `launcherNfsMount()` for more information.
`placementConstraints`	A list of placement constraints. See `launcherPlacementConstraint()` for more information.
`resourceLimits`	A list of resource limits. See `launcherResourceLimit()` for more information.
`queues`	A list of available submission queues for the cluster. Only applicable to batch systems like LSF.
`config`	A list of cluster-specific configuration options. See `launcherConfig()` for more information.
`user`	The user-name of the job owner.
`applyConfigSettings`	Apply server-configured mounts, exposedPorts, and environment, in addition to any specified in this call.

Execute an R Script as a Workbench Job

Description

Convenience function for running an R script as a Workbench job using whichever R is found on the path in the Workbench launcher cluster.

Usage

launcherSubmitR(script, cluster = "Local", container = NULL)
launcherSubmitR(script, cluster = "Local", container = NULL)

Arguments

`script`	Fully qualified path of R script. Must be a path that is available in the job container (if using containerized job cluster such as Kubernetes).
`cluster`	The name of the cluster this job should be submitted to.
`container`	The container to be used for launched jobs.

Details

See launcherSubmitJob() for running jobs with full control over command, environment, and so forth.

Navigate to file

Description

Open a file in RStudio, optionally at a specified location.

Usage

navigateToFile(
  file = character(0),
  line = -1L,
  column = -1L,
  moveCursor = TRUE
)
navigateToFile(
  file = character(0),
  line = -1L,
  column = -1L,
  moveCursor = TRUE
)

Arguments

`file`	The file to be opened.
`line`	The line number where the cursor should be placed. When `-1L` (the default), the cursor will not be moved.
`column`	The column number where the cursour should be placed. When `-1L` (the default), the cursor will not be moved.
`moveCursor`	Boolean; should the cursor be moved to the requested (`line`, `column`) position? Set this to `FALSE` to preserve the existing cursor position in the document.

Details

The navigateToFile opens a file in RStudio. If the file is already open, its tab or window is activated.

Once the file is open, the cursor is moved to the specified location. If the file argument is empty (the default), then the file is the file currently in view if one exists. If the line and column arguments are both equal to -1L (the default), then the cursor position in the document that is opened will be preserved. Alternatively, moveCursor can be set to FALSE to preserve the cursor position.

Note that if your intent is to navigate to a particular function within a file, you can also cause RStudio to navigate there by invoking View on the function, which has the advantage of falling back on deparsing if the file is not available.

Note

The navigateToFile function was added in version 0.99.719 of RStudio.

Persistent keys and values

Description

Store persistent keys and values. Storage is per-project; if there is no project currently active, then a global store is used.

Usage

setPersistentValue(name, value)

getPersistentValue(name)
setPersistentValue(name, value)

getPersistentValue(name)

Arguments

`name`	The key name.
`value`	The key value.

Value

The stored value as a character vector (NULL if no value of the specified name is available).

Note

The setPersistentValue and getPersistentValue functions were added in version 1.1.57 of RStudio.

Preview an Rd topic in the Help pane

Description

Preview an Rd topic in the Help pane.

Usage

previewRd(rdFile)
previewRd(rdFile)

Arguments

rdFile

The path to an .Rd file.

Note

The previewRd function was added in version 0.98.191 of RStudio.

Examples


## Not run: 
rstudioapi::previewRd("~/MyPackage/man/foo.Rd")

## End(Not run)

## Not run: 
rstudioapi::previewRd("~/MyPackage/man/foo.Rd")

## End(Not run)

Preview SQL statement

Description

Makes use of 'DBI' and dbGetQuery() to preview a SQL statement for a given 'DBI' connection.

Usage

previewSql(conn, statement, ...)
previewSql(conn, statement, ...)

Arguments

`conn`	The 'DBI' connection to be used to execute this statement.
`statement`	The SQL statement to execute. Either a path to a file containing a SQL statement or the SQL statement itself.
`...`	Additional arguments to be used in `dbGetQuery()`.

Note

The previewSql function was introduced in RStudio 1.2.600

Extract the Primary Selection

Description

By default, functions returning a document context will return a list of selections, including both the 'primary' selection and also 'other' selections (e.g. to handle the case where a user might have multiple cursors active). Use primary_selection() to extract the primary selection.

Usage

primary_selection(x, ...)
primary_selection(x, ...)

Arguments

`x`	A document context, or a selection.
`...`	Optional arguments (currently ignored).

Open a project in RStudio

Description

Initialize and open RStudio projects.

Usage

openProject(path = NULL, newSession = FALSE)

initializeProject(path = getwd())
openProject(path = NULL, newSession = FALSE)

initializeProject(path = getwd())

Arguments

`path`	Either the path to an existing `.Rproj` file, or a path to a directory in which a new project should be initialized and opened.
`newSession`	Boolean; should the project be opened in a new session, or should the current RStudio session switch to that project? Note that `TRUE` values are only supported with RStudio Desktop and RStudio Server Pro.

Details

Calling openProject() without arguments effectively re-opens the currently open project in RStudio. When switching projects, users will be prompted to save any unsaved files; alternatively, you can explicitly save any open documents using documentSaveAll().

Note

The openProject and initializeProject functions were added in version 1.1.287 of RStudio.

Read Preference

Description

Reads a user preference, useful to remember preferences across different R sessions for the same user.

Usage

readPreference(name, default)
readPreference(name, default)

Arguments

`name`	The name of the preference.
`default`	The default value to use when the preference is not available.

Details

User preferences can have arbitrary names and values. You must write the preference with writePreference before it can be read (otherwise its default value will be returned).

Note

The readPreference function was added in version 1.1.67 of RStudio.

Read RStudio Preference

Description

Reads an internal RStudio IDE preference for the current user.

Usage

readRStudioPreference(name, default)
readRStudioPreference(name, default)

Arguments

`name`	The name of the preference.
`default`	The default value of the preference, returned if the preference is not found.

Details

RStudio IDE internal preferences include the values displayed in RStudio's Global Options dialog as well as a number of additional settings.

Note

The readRStudioPreference function was added in version 1.3.387 of RStudio.

Examples


## Not run: 
# Get indentation settings
spaces <- rstudioapi::readRStudioPreference("num_spaces_for_tab", FALSE)
message("Using ", spaces, " per tab.")

## End(Not run)


## Not run: 
# Get indentation settings
spaces <- rstudioapi::readRStudioPreference("num_spaces_for_tab", FALSE)
message("Using ", spaces, " per tab.")

## End(Not run)

Register Command Callback

Description

Registers a callback to be executed when an RStudio command is invoked.

Usage

registerCommandCallback(commandId, callback)
registerCommandCallback(commandId, callback)

Arguments

`commandId`	The ID of the command to listen for.
`callback`	A function to execute when the command is invoked.

Details

RStudio commands can be invoked from menus, toolbars, keyboard shortcuts, and the Command Palette, as well as the RStudio API. The callback will be executed whenever the command is invoked, regardless of how the invocation was triggered.

See the RStudio Server Professional Administration Guide appendix for a list of supported command IDs.

The callback is executed after the command has been run, but as some commands initiate asynchronous processes, there is no guarantee that the command has finished its work when the callback is invoked.

If you're having trouble figuring out the ID of a command you want to listen for, it can be helpful to discover it by listening to the full command stream; see the example in registerCommandStreamCallback for details.

Note that no error will be raised if you use a command ID that does not exist.

Value

A handle representing the registration. Pass this handle to unregisterCommandCallback to unregister the callback.

Note

The registerCommandCallback function was introduced in RStudio 1.4.1589.

Examples


## Not run: 
# Set up a callback to display an encouraging dialog whenever 
# the user knits a document
handle <- rstudioapi::registerCommandCallback(
  "knitDocument", 
  function() {
    rstudioapi::showDialog(
      "Achievement",
      "Congratulations, you have knitted a document. Well done."
    )
  })

# Knit the document interactively and observe the dialog

# Later: Unregister the callback
rstudioapi::unregisterCommandCallback(handle)

## End(Not run)

## Not run: 
# Set up a callback to display an encouraging dialog whenever 
# the user knits a document
handle <- rstudioapi::registerCommandCallback(
  "knitDocument", 
  function() {
    rstudioapi::showDialog(
      "Achievement",
      "Congratulations, you have knitted a document. Well done."
    )
  })

# Knit the document interactively and observe the dialog

# Later: Unregister the callback
rstudioapi::unregisterCommandCallback(handle)

## End(Not run)

Register Command Stream Callback

Description

Registers a callback to be executed whenever any RStudio command is invoked.

Usage

registerCommandStreamCallback(callback)
registerCommandStreamCallback(callback)

Arguments

callback

A function to execute when the command is invoked.

Details

The callback function will be given a single argument with the ID of the command that was invoked. See the RStudio Server Professional Administration Guide appendix for a list of command IDs.

Note that there is a small performance penalty incurred across the IDE when a command stream listener is present. If you only need to listen to a few specific commands, it is recommended to set up callbacks for them individually using registerCommandCallback.

Value

A handle representing the registration. Pass this handle to unregisterCommandCallback to unregister the callback.

Note

The registerCommandStreamCallback function was introduced in RStudio 1.4.1589.

Examples


## Not run: 
# Set up a callback to print the ID of commands executed to the console.
handle <- rstudioapi::registerCommandStreamCallback(function(id) {
  message("Command executed: ", id)
})

# Later: Unregister the callback
rstudioapi::unregisterCommandCallback(handle)

## End(Not run)
## Not run: 
# Set up a callback to print the ID of commands executed to the console.
handle <- rstudioapi::registerCommandStreamCallback(function(id) {
  message("Command executed: ", id)
})

# Later: Unregister the callback
rstudioapi::unregisterCommandCallback(handle)

## End(Not run)

Remove a custom theme from RStudio.

Description

Remove a custom theme from RStudio.

Usage

removeTheme(name)
removeTheme(name)

Arguments

name

The unique name of the theme to remove.

Note

The removeTheme function was introduced in RStudio 1.2.879.

Restart the R Session

Description

Restart the RStudio session.

Usage

restartSession(command = "", clean = FALSE)
restartSession(command = "", clean = FALSE)

Arguments

`command`	A command (as a string) to be run after restarting.
`clean`	Boolean; when `FALSE`, the current R session (including loaded packages and data objects) will be saved and restored in the new session.

Note

The restartSession function was added in version 1.1.281 of RStudio. Support for the clean argument was added for version 2024.04 release of RStudio; it is silently ignored in older versions of RStudio.

Interact with Documents open in RStudio

Description

Use these functions to interact with documents open in RStudio.

Usage

insertText(location = NULL, text = NULL, id = NULL)

modifyRange(location = NULL, text = NULL, id = NULL)

setDocumentContents(text, id = NULL)

setCursorPosition(position, id = NULL)

setSelectionRanges(ranges, id = NULL)

documentId(allowConsole = TRUE)

documentPath(id = NULL)

documentSave(id = NULL)

documentSaveAll()

documentNew(
  text,
  type = c("r", "rmarkdown", "sql"),
  position = document_position(0, 0),
  execute = FALSE
)

documentOpen(path, line = -1L, col = -1L, moveCursor = TRUE)

documentClose(id = NULL, save = TRUE)
insertText(location = NULL, text = NULL, id = NULL)

modifyRange(location = NULL, text = NULL, id = NULL)

setDocumentContents(text, id = NULL)

setCursorPosition(position, id = NULL)

setSelectionRanges(ranges, id = NULL)

documentId(allowConsole = TRUE)

documentPath(id = NULL)

documentSave(id = NULL)

documentSaveAll()

documentNew(
  text,
  type = c("r", "rmarkdown", "sql"),
  position = document_position(0, 0),
  execute = FALSE
)

documentOpen(path, line = -1L, col = -1L, moveCursor = TRUE)

documentClose(id = NULL, save = TRUE)

Arguments

`location`	An object specifying the positions, or ranges, wherein text should be inserted. See Details for more information.
`text`	A character vector, indicating what text should be inserted at each aforementioned range. This should either be length one (in which case, this text is applied to each range specified); otherwise, it should be the same length as the `ranges` list.
`id`	The document id. When `NULL` or blank, the requested operation will apply to the currently open, or last focused, RStudio document.
`position`	The cursor position, typically created through `document_position()`.
`ranges`	A list of one or more ranges, typically created through `document_range()`.
`allowConsole`	Allow the pseudo-id `⁠#console⁠` to be returned, if the R console is currently focused? Set this to `FALSE` if you'd always like to target the currently-active or last-active editor in the Source pane.
`type`	The type of document to be created.
`execute`	Should the code be executed after the document is created?
`path`	The path to the document.
`line`	The line in the document to navigate to.
`col`	The column in the document to navigate to.
`moveCursor`	Boolean; move the cursor to the requested location after opening the document?
`save`	Whether to commit unsaved changes to the document before closing it.

Details

location should be a (list of) document_position or document_range object(s), or numeric vectors coercable to such objects.

To operate on the current selection in a document, call insertText() with only a text argument, e.g.

    insertText("# Hello\n")
    insertText(text = "# Hello\n")

Otherwise, specify a (list of) positions or ranges, as in:

    # insert text at the start of the document
    insertText(c(1, 1), "# Hello\n")

    # insert text at the end of the document
    insertText(Inf, "# Hello\n")

    # comment out the first 5 rows
    pos <- Map(c, 1:5, 1)
    insertText(pos, "# ")

    # uncomment the first 5 rows, undoing the previous action
    rng <- Map(c, Map(c, 1:5, 1), Map(c, 1:5, 3))
    modifyRange(rng, "")

modifyRange is a synonym for insertText, but makes its intent clearer when working with ranges, as performing text insertion with a range will replace the text previously existing in that range with new text. For clarity, prefer using insertText when working with document_positions, and modifyRange when working with document_ranges.

documentClose accepts an ID of an open document rather than a path. You can retrieve the ID of the active document using the documentId() function.

Closing is always done non-interactively; that is, no prompts are given to the user. If the user has made changes to the document but not saved them, then the save parameter governs the behavior: when TRUE, unsaved changes are committed, and when FALSE they are discarded.

Note

The insertText, modifyRange and setDocumentContents functions were added with version 0.99.796 of RStudio.

The setCursorPosition and setSelectionRanges functions were added with version 0.99.1111 of RStudio.

The documentSave and documentSaveAll functions were added with version 1.1.287 of RStudio.

The documentId and documentPath functions were added with version 1.4.843 of RStudio.

The documentNew function was introduced in RStudio 1.2.640.

The documentOpen function was introduced in RStudio 1.4.1106.

The documentClose function was introduced in RStudio 1.2.1255

Retrieve Information about an RStudio Editor

Description

Returns information about an RStudio editor.

Usage

getActiveDocumentContext()

getSourceEditorContext(id = NULL)

getConsoleEditorContext()
getActiveDocumentContext()

getSourceEditorContext(id = NULL)

getConsoleEditorContext()

Arguments

`id`	The ID of a particular document, as retrieved by `documentId()` or similar. Supported in RStudio 2022.06.0 or newer.

Details

The selection field returned is a list of document selection objects. A document selection is just a pairing of a document range, and the text within that range.

Value

A list with elements:

`id`	The document ID.
`path`	The path to the document on disk.
`contents`	The contents of the document.
`selection`	A `list` of selections. See Details for more information.

Note

The getActiveDocumentContext function was added with version 0.99.796 of RStudio, while the getSourceEditorContext and the getConsoleEditorContext functions were added with version 0.99.1111.

Save active RStudio plot image

Description

Save the plot currently displayed in the Plots pane as an image.

Usage

savePlotAsImage(
  file,
  format = c("png", "jpeg", "bmp", "tiff", "emf", "svg", "eps"),
  width,
  height
)
savePlotAsImage(
  file,
  format = c("png", "jpeg", "bmp", "tiff", "emf", "svg", "eps"),
  width,
  height
)

Arguments

`file`	The target file path.
`format`	The Image format. Must be one of ("png", "jpeg", "bmp", "tiff", "emf", "svg", or "eps").
`width`	The image width, in pixels.
`height`	The image height, in pixels.

Note

The savePlotAsImage function was introduced in RStudio 1.1.57.

Manipulate User Selections in the RStudio IDE

Description

These functions allow users of the rstudioapi package to read and write the user's current selection within the RStudio IDE.

Usage

selectionGet(id = NULL)

selectionSet(value = NULL, id = NULL)
selectionGet(id = NULL)

selectionSet(value = NULL, id = NULL)

Arguments

`id`	The document ID. When `NULL` (the default), the active, or most-recently edited, document will be used.
`value`	The text contents to set for the selection.

Send code to the R console

Description

Send code to the R console, and optionally execute it.

Usage

sendToConsole(code, execute = TRUE, echo = TRUE, focus = TRUE, animate = FALSE)
sendToConsole(code, execute = TRUE, echo = TRUE, focus = TRUE, animate = FALSE)

Arguments

`code`	The R code to be executed, as a character vector.
`execute`	Boolean; should the code be executed after being submitted to the console? If `FALSE`, `code` is submitted to the console but is not executed.
`echo`	Boolean; echo the code in the console as it is executed?
`focus`	Boolean; focus the console after sending code?
`animate`	Boolean; should the submitted code be animated, as if someone was typing it?

Note

The sendToConsole function was added in version 0.99.787 of RStudio.

Examples


## Not run: 
rstudioapi::sendToConsole(".Platform", execute = FALSE, animate = TRUE)

## End(Not run)


## Not run: 
rstudioapi::sendToConsole(".Platform", execute = FALSE, animate = TRUE)

## End(Not run)

Set ghost text

Description

Set ghost text in the current document. The ghost text will be inserted at the current cursor position. Ghost text can be inserted into the document by pressing Tab, and will be automatically dismissed if the user navigates the cursor away.

Usage

setGhostText(text)
setGhostText(text)

Arguments

text

The ghost text to set.

Show Dialog Box

Description

Shows a dialog box with a given title and contents.

Usage

showDialog(title, message, url = "")
showDialog(title, message, url = "")

Arguments

`title`	The title to display in the dialog box.
`message`	A character vector with the contents to display in the main dialog area. Contents can contain the following HTML tags: "p", "em", "strong", "b" and "i".
`url`	An optional url to display under the `message`.

Details

 showDialog("A dialog", "Showing <b>bold</b> text in the
message.")

Note

The showDialog function was added in version 1.1.67 of RStudio.

Show Prompt Dialog Box

Description

Shows a dialog box with a prompt field.

Usage

showPrompt(title, message, default = NULL)
showPrompt(title, message, default = NULL)

Arguments

`title`	The title to display in the dialog box.
`message`	A character vector with the contents to display in the main dialog area.
`default`	An optional character vector that fills the prompt field with a default value.

Note

The showPrompt function was added in version 1.1.67 of RStudio.

Show Question Dialog Box

Description

Shows a dialog box asking a question.

Usage

showQuestion(title, message, ok = NULL, cancel = NULL)
showQuestion(title, message, ok = NULL, cancel = NULL)

Arguments

`title`	The title to display in the dialog box.
`message`	A character vector with the contents to display in the main dialog area.
`ok`	And optional character vector that overrides the caption for the OK button.
`cancel`	An optional character vector that overrides the caption for the Cancel button.

Note

The showQuestion function was added in version 1.1.67 of RStudio.

Display source markers

Description

Display user navigable source markers in a pane within RStudio.

Usage

sourceMarkers(
  name,
  markers,
  basePath = NULL,
  autoSelect = c("none", "first", "error")
)
sourceMarkers(
  name,
  markers,
  basePath = NULL,
  autoSelect = c("none", "first", "error")
)

Arguments

`name`	The name of marker set. If there is a market set with this name already being shown, those markers will be replaced.
`markers`	An R list, or data.frame, of source markers. See details for more details on the expected format.
`basePath`	Optional. If all source files are within a base path, then specifying that path here will result in file names being displayed as relative paths. Note that in this case markers still need to specify source file names as full paths.
`autoSelect`	Auto-select a marker after displaying the marker set?

Details

The markers argument can contains either a list of marker lists or a data frame with the appropriate marker columns. The fields in a marker are as follows (all are required):

`type`	The marker type ("error", "warning", "info", "style", or "usage").
`file`	The path to the associated source file.
`line`	The line number for the associated marker.
`column`	The column number for the associated marker.
`message`	A message associated with the marker at this location.

Note the marker message can contain ANSI SGR codes for formatting. The cli package can format text for style and color.

Note

The sourceMarkers function was added in version 0.99.225 of RStudio.

Get System Username

Description

Returns the system username of the current user.

Usage

systemUsername()
systemUsername()

Activate Terminal

Description

Ensure terminal is running and optionally bring to front in RStudio.

Usage

terminalActivate(id = NULL, show = TRUE)
terminalActivate(id = NULL, show = TRUE)

Arguments

`id`	The terminal id. The `id` is obtained from `terminalList()`, `terminalVisible()`, `terminalCreate()`, or `terminalExecute()`. If NULL, the terminal tab will be selected but no specific terminal will be chosen.
`show`	If TRUE, bring the terminal to front in RStudio.

Note

The terminalActivate function was added in version 1.1.350 of RStudio.

Examples


## Not run: 
# create a hidden terminal and run a lengthy command
termId = rstudioapi::terminalCreate(show = FALSE)
rstudioapi::terminalSend(termId, "sleep 5\n")

# wait until a busy terminal is finished
while (rstudioapi::terminalBusy(termId)) {
  Sys.sleep(0.1)
}
print("Terminal available")#'

rstudioapi::terminalActivate(termId)

## End(Not run)


## Not run: 
# create a hidden terminal and run a lengthy command
termId = rstudioapi::terminalCreate(show = FALSE)
rstudioapi::terminalSend(termId, "sleep 5\n")

# wait until a busy terminal is finished
while (rstudioapi::terminalBusy(termId)) {
  Sys.sleep(0.1)
}
print("Terminal available")#'

rstudioapi::terminalActivate(termId)

## End(Not run)

Get Terminal Buffer

Description

Returns contents of a terminal buffer.

Usage

terminalBuffer(id, stripAnsi = TRUE)
terminalBuffer(id, stripAnsi = TRUE)

Arguments

`id`	The terminal id. The `id` is obtained from `terminalList()`, `terminalVisible()`, `terminalCreate()`, or `terminalExecute()`.
`stripAnsi`	If FALSE, don't strip out Ansi escape sequences before returning terminal buffer.

Value

The terminal contents, one line per row.

Note

The terminalBuffer function was added in version 1.1.350 of RStudio.

Is Terminal Busy

Description

Are terminals reporting that they are busy?

Usage

terminalBusy(id)
terminalBusy(id)

Arguments

`id`	The terminal id. The `id` is obtained from `terminalList()`, `terminalVisible()`, `terminalCreate()`, or `terminalExecute()`.

Details

This feature is only supported on RStudio Desktop for Mac and Linux, and RStudio Server. It always returns FALSE on RStudio Desktop for Microsoft Windows.

Value

a boolean

Note

The terminalBusy function was added in version 1.1.350 of RStudio.

Examples


## Not run: 
# create a hidden terminal and run a lengthy command
termId <- rstudioapi::terminalCreate(show = FALSE)
rstudioapi::terminalSend(termId, "sleep 5\n")

# wait until a busy terminal is finished
while (rstudioapi::terminalBusy(termId)) {
  Sys.sleep(0.1)
}
print("Terminal available")

## End(Not run)

## Not run: 
# create a hidden terminal and run a lengthy command
termId <- rstudioapi::terminalCreate(show = FALSE)
rstudioapi::terminalSend(termId, "sleep 5\n")

# wait until a busy terminal is finished
while (rstudioapi::terminalBusy(termId)) {
  Sys.sleep(0.1)
}
print("Terminal available")

## End(Not run)

Clear Terminal Buffer

Description

Clears the buffer for specified terminal.

Usage

terminalClear(id)
terminalClear(id)

Arguments

`id`	The terminal id. The `id` is obtained from `terminalList()`, `terminalVisible()`, `terminalCreate()`, or `terminalExecute()`.

Note

The terminalClear function was added in version 1.1.350 of RStudio.

Examples


## Not run: 
termId <- rstudioapi::terminalCreate()
rstudioapi::terminalSend(termId, 'ls -l\n')
Sys.sleep(3)
rstudioapi::terminalClear(termId)

## End(Not run)


## Not run: 
termId <- rstudioapi::terminalCreate()
rstudioapi::terminalSend(termId, 'ls -l\n')
Sys.sleep(3)
rstudioapi::terminalClear(termId)

## End(Not run)

Retrieve Information about RStudio Terminals

Description

Returns information about RStudio terminal instances.

Usage

terminalContext(id)
terminalContext(id)

Arguments

`id`	The terminal id. The `id` is obtained from `terminalList()`, `terminalVisible()`, `terminalCreate()`, or `terminalExecute()`.

Value

A list with elements:

`handle`	the internal handle
`caption`	caption
`title`	title set by the shell
`working_dir`	working directory
`shell`	shell type
`running`	is terminal process executing
`busy`	is terminal running a program
`exit_code`	process exit code or NULL
`connection`	websockets or rpc
`sequence`	creation sequence
`lines`	lines of text in terminal buffer
`cols`	columns in terminal
`rows`	rows in terminal
`pid`	process id of terminal shell
`full_screen`	full screen program running

Note

The terminalContext function was added in version 1.1.350 of RStudio.

Examples


## Not run: 
termId <- rstudioapi::terminalCreate("example", show = FALSE)
View(rstudioapi::terminalContext(termId))


## End(Not run)


## Not run: 
termId <- rstudioapi::terminalCreate("example", show = FALSE)
View(rstudioapi::terminalContext(termId))


## End(Not run)

Create a Terminal

Description

Create a new Terminal.

Usage

terminalCreate(caption = NULL, show = TRUE, shellType = NULL)
terminalCreate(caption = NULL, show = TRUE, shellType = NULL)

Arguments

`caption`	The desired terminal caption. When `NULL` or blank, the terminal caption will be chosen by the system.
`show`	If `FALSE`, terminal won't be brought to front.
`shellType`	Shell type for the terminal: NULL or "default" to use the shell selected in Global Options. For Microsoft Windows, alternatives are "win-cmd" for 64-bit Command Prompt, "win-ps" for 64-bit PowerShell, "win-git-bash" for Git Bash, or "win-wsl-bash" for Bash on Windows Subsystem for Linux. On Linux, Mac, and RStudio Server "custom" will use the custom terminal defined in Global Options. If the requested shell type is not available, the default shell will be used, instead.

Value

The terminal identifier as a character vector (NULL if unable to create the terminal or the given terminal caption is already in use).

Note

The terminalCreate function was added in version 1.1.350 of RStudio and the ability to specify shellType was added in version 1.2.696.

Examples


## Not run: 
termId <- rstudioapi::terminalCreate('My Terminal')

## End(Not run)


## Not run: 
termId <- rstudioapi::terminalCreate('My Terminal')

## End(Not run)

Execute Command

Description

Execute a command, showing results in the terminal pane.

Usage

terminalExecute(command, workingDir = NULL, env = character(), show = TRUE)
terminalExecute(command, workingDir = NULL, env = character(), show = TRUE)

Arguments

`command`	System command to be invoked, as a character string.
`workingDir`	Working directory for command
`env`	Vector of name=value strings to set environment variables
`show`	If FALSE, terminal won't be brought to front

Value

The terminal identifier as a character vector (NULL if unable to create the terminal).

Note

The terminalExecute function was added in version 1.1.350 of RStudio.

Examples


## Not run: 
termId <- rstudioapi::terminalExecute(
  command = 'echo $HELLO && echo $WORLD',
  workingDir = '/usr/local',
  env = c('HELLO=WORLD', 'WORLD=EARTH'),
  show = FALSE)

while (is.null(rstudioapi::terminalExitCode(termId))) {
  Sys.sleep(0.1)
}

result <- terminalBuffer(termId)
terminalKill(termId)
print(result)

## End(Not run)


## Not run: 
termId <- rstudioapi::terminalExecute(
  command = 'echo $HELLO && echo $WORLD',
  workingDir = '/usr/local',
  env = c('HELLO=WORLD', 'WORLD=EARTH'),
  show = FALSE)

while (is.null(rstudioapi::terminalExitCode(termId))) {
  Sys.sleep(0.1)
}

result <- terminalBuffer(termId)
terminalKill(termId)
print(result)

## End(Not run)

Terminal Exit Code

Description

Get exit code of terminal process, or NULL if still running.

Usage

terminalExitCode(id)
terminalExitCode(id)

Arguments

`id`	The terminal id. The `id` is obtained from `terminalList()`, `terminalVisible()`, ,`terminalCreate()`, or `terminalExecute()`.

Value

The exit code as an integer vector, or NULL if process still running.

Note

The terminalExitCode function was added in version 1.1.350 of RStudio.

Kill Terminal

Description

Kill processes and close a terminal.

Usage

terminalKill(id)
terminalKill(id)

Arguments

`id`	The terminal id. The `id` is obtained from `terminalList()`, `terminalVisible()`, `terminalCreate()`, or `terminalExecute()`.

Note

The terminalKill function was added in version 1.1.350 of RStudio.

Get All Terminal Ids

Description

Return a character vector containing all the current terminal identifiers.

Usage

terminalList()
terminalList()

Value

The terminal identifiers as a character vector.

Note

The terminalList function was added in version 1.1.350 of RStudio.

Is Terminal Running

Description

Does a terminal have a process associated with it? If the R session is restarted after a terminal has been created, the terminal will not restart its shell until it is displayed either via the user interface, or via terminalActivate().

Usage

terminalRunning(id)
terminalRunning(id)

Arguments

`id`	The terminal id. The `id` is obtained from `terminalList()`, `terminalVisible()`, `terminalCreate()`, or `terminalExecute()`.

Value

a boolean

Note

The terminalRunning function was added in version 1.1.350 of RStudio.

Examples


## Not run: 
# termId has a handle to a previously created terminal
# make sure it is still running before we send it a command
if (!rstudioapi::terminalRunning(termId)) {
   rstudioapi::terminalActivate(termId))

   # wait for it to start
   while (!rstudioapi::terminalRunning(termId)) {
      Sys.sleep(0.1)
   }

   terminalSend(termId, "echo Hello\n")
}

## End(Not run)

## Not run: 
# termId has a handle to a previously created terminal
# make sure it is still running before we send it a command
if (!rstudioapi::terminalRunning(termId)) {
   rstudioapi::terminalActivate(termId))

   # wait for it to start
   while (!rstudioapi::terminalRunning(termId)) {
      Sys.sleep(0.1)
   }

   terminalSend(termId, "echo Hello\n")
}

## End(Not run)

Send Text to a Terminal

Description

Send text to an existing terminal.

Usage

terminalSend(id, text)
terminalSend(id, text)

Arguments

`id`	The terminal id. The `id` is obtained from `terminalList()`, `terminalVisible()`, `terminalCreate()`, or `terminalExecute()`.
`text`	Character vector containing text to be inserted.

Note

The terminalSend function was added in version 1.1.350 of RStudio.

Examples


## Not run: 
termId <- rstudioapi::terminalCreate()
rstudioapi::terminalSend(termId, 'ls -l\n')

## End(Not run)


## Not run: 
termId <- rstudioapi::terminalCreate()
rstudioapi::terminalSend(termId, 'ls -l\n')

## End(Not run)

Get Visible Terminal

Description

Get Visible Terminal

Usage

terminalVisible()
terminalVisible()

Value

Terminal identifier selected in the client, if any.

Note

The terminalVisible function was added in version 1.1.350 of RStudio.

Translate Local URL

Description

Translates a local URL into an externally accessible URL on RStudio Server.

Usage

translateLocalUrl(url, absolute = FALSE)
translateLocalUrl(url, absolute = FALSE)

Arguments

`url`	The fully qualified URL to translate; for example, `http://localhost:1234/service/page.html`.
`absolute`	Whether to return a relative path URL (the default) or an absolute URL.

Details

On RStudio Server, URLs which refer to the local host network address (such as http://localhost:1234/ and http://127.0.0.1:5678/) must be translated in order to be externally accessible from a browser. This method performs the required translation, and returns the translated URL, which RStudio Server uses to proxy HTTP requests.

Returns an unmodified URL on RStudio Desktop, and when the URL does not refer to a local address.

Value

The translated URL.

Unregister Command Callback

Description

Removes a previously registered command callback.

Usage

unregisterCommandCallback(handle)
unregisterCommandCallback(handle)

Arguments

handle

The registration handle to remove.

Value

NULL, invisibly.

Note

The unregisterCommandCallback function was introduced in RStudio 1.4.1589.

Updates a Dialog Box

Description

Updates specific properties from the current dialog box.

Usage

updateDialog(...)
updateDialog(...)

Arguments

...

Named parameters and values to update a dialog box.

Details

Currently, the only dialog with support for this action is the New Connection dialog in which the code preview can be updated through this API.

 updateDialog(code = "con <- NULL")

Note

The updateDialog function was added in version 1.1.67 of RStudio.

Get User Identity

Description

Returns the identity (displayed name) of the current user.

Usage

userIdentity()
userIdentity()

RStudio version information

Description

Query information about the currently running instance of RStudio.

Usage

versionInfo()
versionInfo()

Value

An R list with the following elements:

`version`	The version of RStudio.
`mode`	`"desktop"` for RStudio Desktop, or `"server"` for RStudio Server.
`citation`	Information on how RStudio can be cited in academic publications.

Note

The versionInfo function was added in version 0.97.124 of RStudio.

Examples


## Not run: 
info <- rstudioapi::versionInfo()

# check what version of RStudio is in use
if (info$version >= "1.4") {
  # code specific to versions of RStudio 1.4 and newer
}

# check whether RStudio Desktop or RStudio Server is being used
if (info$mode == "desktop") {
  # code specific to RStudio Desktop
}

# Get the citation
info$citation


## End(Not run)

## Not run: 
info <- rstudioapi::versionInfo()

# check what version of RStudio is in use
if (info$version >= "1.4") {
  # code specific to versions of RStudio 1.4 and newer
}

# check whether RStudio Desktop or RStudio Server is being used
if (info$mode == "desktop") {
  # code specific to RStudio Desktop
}

# Get the citation
info$citation


## End(Not run)

View local web content within RStudio

Description

View local web content within RStudio. Content can be served from static files in the R session temporary directory, or via a web application running on localhost.

Usage

viewer(url, height = NULL)
viewer(url, height = NULL)

Arguments

`url`	Application URL. This can be either a localhost URL or a path to a file within the R session temporary directory (i.e. a path returned by `tempfile()`).
`height`	Desired height. Specifies a desired height for the Viewer pane (the default is `NULL` which makes no change to the height of the pane). This value can be numeric or the string `"maximize"` in which case the Viewer will expand to fill all vertical space. See details below for a discussion of constraints imposed on the height.

Details

RStudio also sets the global viewer option to the rstudioapi::viewer function so that it can be invoked in a front-end independent manner.

Applications are displayed within the Viewer pane. The application URL must either be served from localhost or be a path to a file within the R session temporary directory. If the URL doesn't conform to these requirements it is displayed within a standard browser window.

The height parameter specifies a desired height, however it's possible the Viewer pane will end up smaller if the request can't be fulfilled (RStudio ensures that the pane paired with the Viewer maintains a minimum height). A height of 400 pixels or lower is likely to succeed in a large proportion of configurations.

A very large height (e.g. 2000 pixels) will allocate the maximum allowable space for the Viewer (while still preserving some view of the pane above or below it). The value "maximize" will force the Viewer to full height. Note that this value should only be specified in cases where maximum vertical space is essential, as it will result in one of the user's other panes being hidden.

Viewer Detection

When a page is displayed within the Viewer it's possible that the user will choose to pop it out into a standalone browser window. When rendering inside a standard browser you may want to make different choices about how content is laid out or scaled. Web pages can detect that they are running inside the Viewer pane by looking for the viewer_pane query parameter, which is automatically injected into URLs when they are shown in the Viewer. For example, the following URL:

 http://localhost:8100

When rendered in the Viewer pane is transformed to:

 http://localhost:8100?viewer_pane=1

To provide a good user experience it's strongly recommended that callers take advantage of this to automatically scale their content to the current size of the Viewer pane. For example, re-rendering a JavaScript plot with new dimensions when the size of the pane changes.

Note

The viewer function was added in version 0.98.423 of RStudio. The ability to specify maximize for the height parameter was introduced in version 0.99.1001 of RStudio.

Examples


## Not run: 

# run an application inside the IDE
rstudioapi::viewer("http://localhost:8100")

# run an application and request a height of 500 pixels
rstudioapi::viewer("http://localhost:8100", height = 500)

# use 'viewer' option if set, or `utils::browseURL()` if unset
viewer <- getOption("viewer", default = utils::browseURL)
viewer("http://localhost:8100")

# generate a temporary html file and display it
dir <- tempfile()
dir.create(dir)
htmlFile <- file.path(dir, "index.html")
# (code to write some content to the file)
rstudioapi::viewer(htmlFile)


## End(Not run)


## Not run: 

# run an application inside the IDE
rstudioapi::viewer("http://localhost:8100")

# run an application and request a height of 500 pixels
rstudioapi::viewer("http://localhost:8100", height = 500)

# use 'viewer' option if set, or `utils::browseURL()` if unset
viewer <- getOption("viewer", default = utils::browseURL)
viewer("http://localhost:8100")

# generate a temporary html file and display it
dir <- tempfile()
dir.create(dir)
htmlFile <- file.path(dir, "index.html")
# (code to write some content to the file)
rstudioapi::viewer(htmlFile)


## End(Not run)

Write Preference

Description

Writes a user preference, useful to remember preferences across different R sessions for the same user.

Usage

writePreference(name, value)
writePreference(name, value)

Arguments

`name`	The name of the preference.
`value`	The value of the preference.

Note

The writePreference function was added in version 1.1.67 of RStudio.

Write RStudio Preference

Description

Writes an internal RStudio IDE preference for the current user.

Usage

writeRStudioPreference(name, value)
writeRStudioPreference(name, value)

Arguments

`name`	The name of the preference.
`value`	The value of the preference.

Details

RStudio IDE internal preferences include the values displayed in RStudio's Global Options dialog as well as a number of additional settings. Set them carefully; inappropriate values can cause unexpected behavior. See the RStudio Server Professional Administration Guide appendix for your version of RStudio for a full list of preference names and values.

Note

The writeRStudioPreference function was added in version 1.3.387 of RStudio.

Examples


## Not run: 
# Hide RStudio's toolbar.
rstudioapi::writeRStudioPreference("toolbar_visible", FALSE)

## End(Not run)


## Not run: 
# Hide RStudio's toolbar.
rstudioapi::writeRStudioPreference("toolbar_visible", FALSE)

## End(Not run)

Package 'rstudioapi'

Help Index

Add a Custom Editor Theme

Description

Usage

Arguments

Note

Apply an Editor Theme to RStudio

Description

Usage

Arguments

Note

Ask the user for a password interactively

Description

Usage

Arguments

Details

Note

Examples

Prompt user for secret

Description

Usage

Arguments

Note

File an RStudio Bug Report

Description

Usage

Build Tools

Description

Usage

Arguments

Details

Note

Call an RStudio API function

Description

Usage

Arguments

Examples

Register and Unregister a Chunk Callback

Description

Usage

Arguments

Value

Chunk Callbacks

Convert a tmTheme to an RStudio Theme

Description

Usage

Arguments

Note

Create a Project Template

Description

Usage

Arguments

Interact with RStudio's Dictionaries

Description

Usage

Details

Note

Create a Document Position

Description

Usage

Arguments

Create a Range

Description

Usage

Arguments

Value

Execute Command

Description

Usage

Arguments

Details

Note

See Also

Select a file / folder

Description

Usage

Arguments

Details

Note