DIZutils (version 0.0.13)

get_config_env: get_config_env helper function

Description

Internal function to read settings for a certain system from the environment. IMPORTANT: If yout want to get any result with your input as prefix, use `ignore_presets = TRUE`! See param-definition for more details. This function will look at uppercase system_names at default.

Usage

get_config_env(
  system_name,
  logfile_dir = tempdir(),
  headless = TRUE,
  ignore_presets = FALSE,
  uppercase_system = TRUE
)

Arguments

system_name

The name of the system (This is also the prefix used to get the environment variables with 'SYSTEM_KEY', e.g. 'I2B2_DBNAME'). This function also works if there are multiple instances like `I2B2_1_DBNAME` and `I2B2_2_DBNAME`. Then the result will contain nested lists for each occurence.

logfile_dir

(Optional, String, default: "tempdir()") The absolute path to folder where the logfile will be stored.

headless

A boolean (default: `FALSE`). Indicating, if the function is run only in the console (`headless = TRUE`) or on a GUI frontend (`headless = FALSE`).

ignore_presets

(boolean, default = FALSE) Only return something if all elements from the presets are found? These are currently `host`, `port`, `user`, `password`, `sid`, `path`. If you have another suffix after `system_name` in your config file, you won't see it here. To see everything with prefix `system_name` simply set `ignore_presets = TRUE`.

uppercase_system

(boolean) Default: True. Otherwise: case-sensitive.

Value

If successful it returns the config, null otherwise.

Examples

# NOT RUN {
get_config_env(
  system_name = "i2b2",
  logfile_dir = tempdir(),
  headless = FALSE
)
# }
# NOT RUN {
# }