Struct Database 

pub struct Database { /* private fields */ }

Every installed package, with indexes by provided name and by file.

Implementations

impl Database

pub fn closure(&self, root: &str, optional: &[String]) -> Closure

The transitive depends closure of root and of every package named in optional, plus every optional dependency so named, resolved through provides. Naming a package nothing depends on, a Vulkan driver say, is how it enters at all.

pub fn closure_excluding( &self, root: &str, optional: &[String], excluded: &BTreeSet<String>, ) -> Closure

As Self::closure, with excluded packages treated as absent: neither they nor what only they depend on enter.

pub fn files_of(&self, closure: &Closure) -> Vec<String>

Every file owned by the packages in closure, sorted.

impl Database

pub fn read(root: &Path) -> Result<Self>

Read the database of the sysroot at root.

pub fn insert(&mut self, package: Package)

Add a package, indexing what it provides and owns. Later packages never displace an earlier owner of the same file.

pub fn package(&self, name: &str) -> Option<&Package>

pub fn packages(&self) -> impl Iterator<Item = &Package>

pub fn owner(&self, path: &str) -> Option<&Package>

The package owning path, given relative to the root.

pub fn satisfier(&self, name: &str) -> Option<&Package>

The package satisfying a dependency name: the package itself, or the first provider of a virtual name.

Trait Implementations

impl Debug for Database

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

Formats the value using the given formatter.

impl Default for Database

fn default() -> Self

Returns the “default value” for a type.