Struct alpm_types::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::new("1:1-1").unwrap();
assert_eq!(version.epoch, Some(Epoch::new("1").unwrap()));
assert_eq!(version.pkgver, Pkgver::new("1".to_string()).unwrap());
assert_eq!(version.pkgrel, Some(Pkgrel::new("1".to_string()).unwrap()));

Fields

pkgver: Pkgver

epoch: Option<Epoch>

pkgrel: Option<Pkgrel>

Implementations

impl Version

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

Create a new Version from a string and return it in a Result

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 alpm_types::Version;

assert_eq!(Version::vercmp(&Version::new("1.0.0").unwrap(), &Version::new("0.1.0").unwrap()), 1);
assert_eq!(Version::vercmp(&Version::new("1.0.0").unwrap(), &Version::new("1.0.0").unwrap()), 0);
assert_eq!(Version::vercmp(&Version::new("0.1.0").unwrap(), &Version::new("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(input: &str) -> Result<Version, Self::Err>

Create a SchemaVersion from a string

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 + PartialOrd,

Restrict a value to a certain interval.

impl PartialEq for Version

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

This method tests for self and other values to be equal, and is used by ==.

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

This method 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

This method tests less than (for self and other) and is used by the < operator.

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

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

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

This method tests greater than (for self and other) and is used by the > operator.

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

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

impl Eq for Version

impl StructuralPartialEq for Version