and

Table of Contents

Prototype: and(...)

Return type: boolean

Description: Returns any if all arguments evaluate to true and !any if any argument evaluates to false.

Arguments: A list of classes, class expressions, or functions that return classes.

Example:

    commands:
      "/usr/bin/generate_config $(config)"
        if => and( "generating_configs",
                   not(fileexists("/etc/config/$(config)"))
                 );

Notes: Introduced primarily for use with if and unless promise attributes.

See also: and, or, not

History: Was introduced in 3.2.0, Nova 2.1.0 (2011)