progress-variables {cli}R Documentation

Progress bar variables

Description

Progress bar variables

Details

These variables can be used in cli progress bar format strings. They are calculated on demand. To use a variable, e.g. pb_bar in a package, you either need to to import pb_bar from cli, or use the qualified form in the format string: cli::pb_bar.

Similarly, in R scripts, you can use pb_bar after library(cli), or cli::pb_bar if you do not attach the cli package.

pb_bar

Creates a visual progress bar. If the number of total units is unknown, then it will return an empty string.

cli_progress_bar(
  total = 100,
  format = "Fitting model {cli::pb_bar} {cli::pb_percent}"
)
#> Fitting model ███████████████████████████████   66%                             

pb_current

The number of current progress units.

cli_progress_bar(
  total = 100,
  format = "{cli::pb_spin} Reading file {cli::pb_current}/{cli::pb_total}"
)
#> ⠙ Reading file 66/100                                                           

pb_current_bytes

The number of current progress units formatted as bytes. The output has a constant width of six characters.

cli_progress_bar(
  format = "Got {cli::pb_current_bytes} in {cli::pb_elapsed}"
)
#> Got 524 kB in 5s                                                                

pb_elapsed

The elapsed time since the start of the progress bar. The time is measured since the progress bar was created with cli_progress_bar() or similar.

cli_progress_bar(
  total = 100,
  format = "{cli::pb_bar} {cli::pb_percent} [{cli::pb_elapsed}]"
)
#> ███████████████████████████████   66% [5s]                                      

pb_elapsed_clock

The elapsed time, in ⁠hh::mm::ss⁠ format.

cli_progress_bar(
  total = 100,
  format = "{cli::pb_bar} {cli::pb_percent} [{cli::pb_elapsed_clock}]"
)
#> ███████████████████████████████   66% [00:00:05]                                

pb_elapsed_raw

The number of seconds since the start of the progress bar.

cli_progress_bar(
  total = 100,
  format = "{cli::pb_bar} {cli::pb_percent} [{round(cli::pb_elapsed_raw)}s]"
)
#> ███████████████████████████████   66% [5s]                                      

pb_eta

The estimated time until the end of the progress bar, in human readable form.

cli_progress_bar(
  total = 100,
  format = "{cli::pb_bar} {cli::pb_percent} | ETA: {cli::pb_eta}"
)
#> ███████████████████████████████   66% | ETA:  3s                                

pb_eta_raw

The estimated time until the end of the progress bar, in seconds. This is useful if you want to adjust the default pb_eta display.

cli_progress_bar(
  total = 100,
  format = "{cli::pb_bar} {cli::pb_percent} | ETA: {round(cli::pb_eta_raw)}s"
)
#> ███████████████████████████████   66% | ETA: 3s                                 

pb_eta_str

The estimated time until the end of the progress bar. It includes the "ETA:" prefix. It is only shown if the time can be estimated, otherwise it is the empty string.

cli_progress_bar(
  total = 100,
  format = "{cli::pb_bar} {cli::pb_percent} | {cli::pb_eta_str}"
)
#> ███████████████████████████████   66% | ETA:  3s                                

pb_extra

pb_extra can be used to access extra data, see the extra argument of cli_progress_bar() and cli_progress_update().

cli_progress_bar(
  total = 100,
  extra = list(user = whoami::username()),
  format = "Cleaning cache for user '{cli::pb_extra$user}': {cli::pb_current_bytes}"
)
#> Cleaning cache for user 'gaborcsardi': 161 MB                                   

pb_id

The id of the progress bar. The id has the format ⁠cli-<pid>-<counter>⁠ where ⁠<pid>⁠ is the process id, and ⁠<counter>⁠ is an integer counter that is incremented every time cli needs a new unique id.

This is useful for debugging progress bars.

cli_progress_bar(
  format = "Progress bar '{cli::pb_id}' is at {cli::pb_current}"
)
#> Progress bar 'cli-82040-1814' is at 64                                          

pb_name

The name of the progress bar. This is supplied by the developer, and it is by default the empty string. A space character is added to non-empty names.

cli_progress_bar(
  name = "Loading training data",
  total = 100,
  format = "{cli::pb_name} {cli::pb_bar} {cli::pb_percent}"
)
#> Loading training data  ███████████████████████████████   66%                    

pb_percent

The percentage of the progress bar, always formatted in three characters plus the percentage sign. If the total number of units is unknown, then it is " NA%".

cli_progress_bar(
  total = 100,
  format = "{cli::pb_bar} {cli::pb_percent}"
)
#> ███████████████████████████████   66%                                           

pb_pid

The integer process id of the progress bar. This is useful if you are aggregating logging output or progress results from multiple processes.

pb_rate

The progress rate, in number of units per second, formatted in a string.

cli_progress_bar(
  total = 156,
  format = "Reading input files {pb_current}/{pb_total} [{pb_rate}]"
)
#> Reading input files 68/156 [14/s]                                               

pb_rate_raw

The raw progress rate, in number of units per second.

cli_progress_bar(
  total = 156,
  format = "Reading input files {pb_current}/{pb_total} [{round(pb_rate_raw)}/s]"
)
#> Reading input files 68/156 [14/s]                                               

pb_rate_bytes

The progress rate, formatted as bytes per second, in human readable form.

cli_progress_bar(
  total = 256 * 1024 * 1014,
  format = paste0(
    "Reading data {pb_current_bytes}/{pb_total_bytes} ",
    "[{ansi_trimws(pb_rate_bytes)}]"
  )
#> Reading data  70 MB/266 MB [14 MB/s]                                            

pb_spin

A spinner. The default spinner is selected via a get_spinner() call.

cli_progress_bar(
  total = 100,
  format = "{cli::pb_spin} Reading file {cli::pb_current}/{cli::pb_total}"
)
#> ⠙ Reading file 66/100                                                           

pb_status

The status string of the progress bar. By default this is an empty string, but it is possible to set it in cli_progress_bar() and 'cli_progress_update()].

cli_progress_bar(status = "Connecting...")
#> ⠙ Connecting... 0 done (0/s) | 1s                                               

pb_timestamp

A time stamp for the current time in ISO 8601 format.

cli_progress_bar(
  "Loading training data files",
  format = "{pb_timestamp} {pb_current} ({pb_rate})"
#> 2022-09-07T11:27:50+00:00 125 (25/s)                                            

pb_total

The total number of progress units, or NA if the number of units is unknown.

cli_progress_bar(
  total = 100,
  format = "{cli::pb_spin} Reading file {cli::pb_current}/{cli::pb_total}"
)
#> ⠙ Reading file 66/100                                                           

pb_total_bytes

The total number of progress units, formatted as bytes, in a human readable format.

cli_progress_bar(
  total = 256 * 1024 * 1014,
  format = paste0(
    "Reading data {pb_current_bytes}/{pb_total_bytes} ",
    "[{ansi_trimws(pb_rate_bytes)}]"
  )
#> Reading data  70 MB/266 MB [14 MB/s]                                            

See Also

Other progress bar functions: cli_progress_along(), cli_progress_bar(), cli_progress_builtin_handlers(), cli_progress_message(), cli_progress_num(), cli_progress_output(), cli_progress_step(), cli_progress_styles()


[Package cli version 3.6.2 Index]