run_command: Execute command with additional environments

In rpymat: Easy to Configure an Isolated 'Python' Environment

Execute command with additional environments

Description

Enables 'conda' environment

Usage

cmd_create(command, shell, use_glue = TRUE)

cmd_set_env(command, key, value, quote = TRUE, quote_type = "cmd")

cmd_set_workdir(command, workdir)

cmd_set_conda(command, conda_path, env_path)

cmd_build(command, .env = parent.frame(), ...)

detect_shell(suggest = NULL)

run_command(
  command,
  shell = detect_shell(),
  use_glue = FALSE,
  enable_conda = TRUE,
  stdout = "",
  stderr = "",
  stdin = "",
  input = NULL,
  env_list = list(),
  wait = TRUE,
  timeout = 0,
  ...,
  workdir = getwd(),
  dry_run = FALSE,
  print_cmd = dry_run,
  glue_env = parent.frame()
)

Arguments

command	system command
shell	shell type
use_glue	whether to glue the command; default is false
key, value	environment variable key and value
quote, quote_type	whether to quote the environment variables and what quote type should use; see shQuote
workdir	the working directory
conda_path	'conda' path; default is conda_path
env_path	'conda' environment path; default is env_path
suggest	suggested shell type; default is 'cmd' on windows, or 'bash' on others
enable_conda	whether to activate 'conda'
stdout, stderr, stdin, input, wait, timeout, ...	passed to system2
env_list	a key-value pairs of environment variables
dry_run	whether to dry-run the command (do not execute, simply returns the command), useful to debug
print_cmd	whether to print the command out
glue_env, .env	the environment to evaluate variables when use_glue is true

Value

All the functions return a list with class rpymat_system_command except for run_command, which returns the exit code by system2.

Examples

run_command("conda install -y numpy", dry_run = TRUE)


a <- "This is a message"
run_command('echo "{a}"', dry_run = TRUE,
            enable_conda = FALSE, use_glue = TRUE)


## Not run: 

# Use `jupyter_launch()` instead. This is just a demonstration
run_command('"{jupyter_bin()}" server list', use_glue = TRUE)


## End(Not run)

rpymat documentation built on Aug. 22, 2023, 9:12 a.m.