Enum DependencyCheck 

pub enum DependencyCheck {
    Binary {
        name: &'static str,
        alternatives: &'static [&'static str],
        version_cmd: Option<(&'static str, &'static [&'static str])>,
    },
    PythonImport {
        module: &'static str,
    },
    Command {
        program: &'static str,
        args: &'static [&'static str],
    },
}

How to verify a dependency is installed.

Variants

Binary

Check that a binary exists on PATH (optionally with minimum version).

Fields

name: &'static str

alternatives: &'static [&'static str]

Alternative names to try (e.g., “lldb-20”, “lldb-18”, “lldb”).

version_cmd: Option<(&'static str, &'static [&'static str])>

Command + args to get version string, e.g., (“lldb-20”, &[“–version”]). If None, just checks existence.

PythonImport

Check that a Python module can be imported.

Fields

module: &'static str

Command

Run an arbitrary command; exit code 0 means installed.

Fields

program: &'static str

args: &'static [&'static str]