Struct Version

pub struct Version {
    pub pkgver: Pkgver,
    pub epoch: Option<Epoch>,
    pub pkgrel: Option<Pkgrel>,
}

A version of a package

A Version tracks an optional Epoch, a Pkgver and an optional Pkgrel.

Examples

use std::str::FromStr;

use alpm_types::{Epoch, Pkgrel, Pkgver, Version};

let version = Version::from_str("1:2-3").unwrap();
assert_eq!(version.epoch, Some(Epoch::from_str("1").unwrap()));
assert_eq!(version.pkgver, Pkgver::new("2".to_string()).unwrap());
assert_eq!(version.pkgrel, Some(Pkgrel::new("3".to_string()).unwrap()));

Fields

pkgver: Pkgver

epoch: Option<Epoch>

pkgrel: Option<Pkgrel>

Implementations

impl Version

pub fn new(pkgver: Pkgver, epoch: Option<Epoch>, pkgrel: Option<Pkgrel>) -> Self

Create a new Version

pub fn with_pkgrel(version: &str) -> Result<Self, Error>

Create a new Version, which is guaranteed to have a Pkgrel

pub fn vercmp(a: &Version, b: &Version) -> i8

Compare two Versions and return a number

The comparison algorithm is based on libalpm/ pacman’s vercmp behavior.

• 1 if a is newer than b
• 0 if a and b are considered to be the same version
• -1 if a is older than b

Examples

use std::str::FromStr;

use alpm_types::Version;

assert_eq!(
    Version::vercmp(
        &Version::from_str("1.0.0").unwrap(),
        &Version::from_str("0.1.0").unwrap()
    ),
    1
);
assert_eq!(
    Version::vercmp(
        &Version::from_str("1.0.0").unwrap(),
        &Version::from_str("1.0.0").unwrap()
    ),
    0
);
assert_eq!(
    Version::vercmp(
        &Version::from_str("0.1.0").unwrap(),
        &Version::from_str("1.0.0").unwrap()
    ),
    -1
);

Trait Implementations

impl Clone for Version

fn clone(&self) -> Version

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Version

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

Formats the value using the given formatter.

impl Display for Version

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

Formats the value using the given formatter.

impl FromStr for Version

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

Create a new Version from a string slice.

Expects a composite version string such as 2:1.25.1-5 The components of the above composite version string are:

• 2: The optional epoch, delimited with a :
• 1.25.1: The version, which is an arbitrary ASCII string, excluding [':', '/', '-']
• 5: The optional release, delimited with a -.

type Err = Error

The associated error which can be returned from parsing.

impl Ord for Version

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Version

fn eq(&self, other: &Version) -> 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 PartialOrd for Version

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Eq for Version

impl StructuralPartialEq for Version