Struct Depend

pub struct Depend { /* private fields */ }

Parse DEPENDS and other package dependency types.

pkgsrc uses a few different ways to express package dependencies. The most common looks something like this, where a dependency on any version of mutt is expressed, with mutt most likely to be found at mail/mutt (though not always).

DEPENDS+=    mutt-[0-9]*:../../mail/mutt

There are a few different types, expressed in DependType.

A DEPENDS match is essentially of the form “Pattern:PkgPath”

Implementations

impl Depend

pub fn new(s: &str) -> Result<Self, DependError>

Create a new Depend from a str slice. Return a DependError if it cannot be created successfully.

Example

use pkgsrc::{Depend, Pattern, PkgPath};

let dep = Depend::new("mktool-[0-9]*:../../pkgtools/mktool").unwrap();
assert_eq!(dep.pattern(), &Pattern::new("mktool-[0-9]*").unwrap());
assert_eq!(dep.pkgpath(), &PkgPath::new("pkgtools/mktool").unwrap());

// Invalid, too many ":".
assert!(Depend::new("pkg>0::../../cat/pkg").is_err());

// Invalid, incorrect Dewey specification.
assert!(Depend::new("pkg>0>2:../../cat/pkg").is_err());

pub fn pattern(&self) -> &Pattern

Return the Pattern portion of this Depend.

pub fn pkgpath(&self) -> &PkgPath

Return the PkgPath portion of this Depend.

Trait Implementations

impl Clone for Depend

fn clone(&self) -> Depend

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Depend

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

Formats the value using the given formatter.

impl FromStr for Depend

type Err = DependError

The associated error which can be returned from parsing.

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

Parses a string s to return a value of this type.

impl Hash for Depend

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Depend

fn eq(&self, other: &Depend) -> 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 Depend