Arg::require_equals

require_equals

since 0.1.0

Requires that options use the --option=val syntax

Examples

Example 1

Spec

TOML

name = "prog"
[args]
cfg = { long = "config", action = "set", require-equals = true }

YAML

name: prog
args:
  cfg:
    long: config
    action: set
    require-equals: true

JSON

{
  "name": "prog",
  "args": {
    "cfg": {
      "long": "config",
      "action": "set",
      "require-equals": true
    }
  }
}

Input

prog --config=file.conf

Output

claptrap_cfg='file.conf'

Example 2

Spec

TOML

name = "prog"
[args]
cfg = { long = "config", action = "set", require-equals = true }

YAML

name: prog
args:
  cfg:
    long: config
    action: set
    require-equals: true

JSON

{
  "name": "prog",
  "args": {
    "cfg": {
      "long": "config",
      "action": "set",
      "require-equals": true
    }
  }
}

Input

prog --config file.conf

Output

error: equal sign is needed when assigning values to '--config=<cfg>'

Usage: prog [OPTIONS]

For more information, try '--help'.