Struct Os 

pub struct Os {
    id: IdentifierString,
    version_id: Option<IdentifierString>,
    variant_id: Option<IdentifierString>,
    image_id: Option<IdentifierString>,
    image_version: Option<IdentifierString>,
}

The Os identifier is used to uniquely identify an Operating System (OS), it relies on data provided by os-release.

Format

An Os identifier consists of up to five parts. Each part of the identifier can consist of the characters “0–9”, “a–z”, “.”, “_” and “-”.

In the filesystem, the parts are concatenated into one path using : (colon) symbols (e.g. debian:12:server:company-x:25.01).

Trailing colons must be omitted for all parts that are unset (e.g. arch instead of arch::::).

However, colons for intermediate parts must be included. (e.g. debian:12:::25.01).

See https://uapi-group.org/specifications/specs/file_hierarchy_for_the_verification_of_os_artifacts/#os

Fields

id: IdentifierString

version_id: Option<IdentifierString>

variant_id: Option<IdentifierString>

image_id: Option<IdentifierString>

image_version: Option<IdentifierString>

Implementations

impl Os

pub fn new( id: IdentifierString, version_id: Option<IdentifierString>, variant_id: Option<IdentifierString>, image_id: Option<IdentifierString>, image_version: Option<IdentifierString>, ) -> Self

Creates a new operating system identifier.

Examples

use voa_core::identifiers::Os;

// Arch Linux is a rolling release distribution.
Os::new("arch".parse()?, None, None, None, None);

// This Debian system is a special purpose image-based OS.
Os::new(
    "debian".parse()?,
    Some("12".parse()?),
    Some("workstation".parse()?),
    Some("cashier-system".parse()?),
    Some("1.0.0".parse()?),
);

fn os_to_string(&self) -> String

A String representation of this Os specifier.

All parts are joined with :, trailing colons are omitted. Parts that are unset are represented as empty strings.

This function produces the exact representation specified in https://uapi-group.org/specifications/specs/file_hierarchy_for_the_verification_of_os_artifacts/#os

pub(crate) fn path_segment(&self) -> PathBuf

A PathBuf representation of this Os specifier.

All parts are joined with :, trailing colons are omitted. Parts that are unset are represented as empty strings.

pub fn parser(input: &mut &str) -> ModalResult<Self>

Recognizes an Os in a string slice.

Relies on [winnow] to parse input and recognizes the id, and the optional version_id, variant_id, image_id and image_version components.

Errors

Returns an error, if

• detection of one of the Os components fails,
• or there is a trailing colon (:) character.

Examples

use voa_core::identifiers::Os;
use winnow::Parser;

Os::parser.parse("arch")?;
Os::parser.parse("debian:13:test-system:test-image:2025.01")?;

Trait Implementations

impl Clone for Os

fn clone(&self) -> Os

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Os

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for Os

fn fmt(&self, fmt: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl FromStr for Os

fn from_str(s: &str) -> Result<Self, Self::Err>

Creates an Os from a string slice.

Note

Delegates to Os::parser.

Errors

Returns an error if Os::parser fails.

type Err = Error

The associated error which can be returned from parsing.

impl PartialEq for Os

fn eq(&self, other: &Os) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for Os