Description

Checks if specified resource is available and sets the value of a variable depending on the result.

Parameters

resource

Description: Name of a resource. Currently files and directories are supported

Domain: Valid filename/directoryname

Default: -

variable

Description: variable which reflects the result

Domain: valid variable name

Default: -

true_value

Description: result value of positive comparison

Domain: -

Default: true

false_value

Description: result value of negative comparison

Domain: -

Default: false

RNG Specification

  <define name="available">
    <element name="available">
      <ref name="dir_if_unless"/>
      <attribute name="resource"/>
      <attribute name="variable"/>
      <optional>
        <attribute name="true_value"/>
      </optional>
      <optional>
        <attribute name="false_value"/>
      </optional>
    </element>
  </define>

	

Examples

  <available resource="${GOBO}/Readme.md" variable="available"/>