Struct Version

pub struct Version {
    pub pkgver: PackageVersion,
    pub epoch: Option<Epoch>,
    pub pkgrel: Option<PackageRelease>,
}

A version of a package

A Version tracks an optional Epoch, a PackageVersion and an optional PackageRelease. See alpm-package-version for details on the format.

Examples

use std::str::FromStr;

use alpm_types::{Epoch, PackageRelease, PackageVersion, Version};


let version = Version::from_str("1:2-3")?;
assert_eq!(version.epoch, Some(Epoch::from_str("1")?));
assert_eq!(version.pkgver, PackageVersion::new("2".to_string())?);
assert_eq!(version.pkgrel, Some(PackageRelease::new(3, None)));

Fields

pkgver: PackageVersion

The version of the package

epoch: Option<Epoch>

The epoch of the package

pkgrel: Option<PackageRelease>

The release of the package

Implementations

impl Version

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

Create a new Version

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

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

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

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

Recognizes a Version in a string slice.

Consumes all of its input.

Errors

Returns an error if input is not a valid alpm-package-version.

Trait Implementations

impl Clone for Version

fn clone(&self) -> Version

Returns a duplicate 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<'de> Deserialize<'de> for Version

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

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>

Creates a new Version from a string slice.

Delegates to Version::parser.

Errors

Returns an error if Version::parser fails.

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 Serialize for Version

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for Version

impl StructuralPartialEq for Version