alpm_utils/
db.rs

1use alpm::{AlpmList, AlpmListMut, Db, Package, Result};
2
3use crate::AsTarg;
4
5/// Extention for AlpmList<Db>
6pub trait DbListExt<'a> {
7    /// Similar to find_satisfier() but expects a Target instead of a &str.
8    fn find_target_satisfier<T: AsTarg>(&self, target: T) -> Option<&'a Package>;
9    /// Similar to pkg() but expects a Target instead of a &str.
10    fn find_target<T: AsTarg>(&self, target: T) -> Result<&'a Package>;
11    /// The same as pkg() on Db but will try each Db in order return the first match.
12    fn pkg<S: Into<Vec<u8>>>(&self, pkg: S) -> Result<&'a Package>;
13}
14
15impl<'a> DbListExt<'a> for AlpmListMut<&'a Db> {
16    fn find_target_satisfier<T: AsTarg>(&self, target: T) -> Option<&'a Package> {
17        self.list().find_target_satisfier(target)
18    }
19
20    fn find_target<T: AsTarg>(&self, target: T) -> Result<&'a Package> {
21        self.list().find_target(target)
22    }
23
24    fn pkg<S: Into<Vec<u8>>>(&self, pkg: S) -> Result<&'a Package> {
25        self.list().pkg(pkg)
26    }
27}
28
29impl<'a> DbListExt<'a> for AlpmList<'_, &'a Db> {
30    fn find_target_satisfier<T: AsTarg>(&self, target: T) -> Option<&'a Package> {
31        let target = target.as_targ();
32
33        if let Some(repo) = target.repo {
34            if let Some(db) = self.iter().find(|r| r.name() == repo) {
35                db.pkgs().find_satisfier(target.pkg)
36            } else {
37                None
38            }
39        } else {
40            self.find_satisfier(target.pkg)
41        }
42    }
43
44    fn find_target<T: AsTarg>(&self, target: T) -> Result<&'a Package> {
45        let target = target.as_targ();
46
47        if let Some(repo) = target.repo {
48            if let Some(db) = self.iter().find(|r| r.name() == repo) {
49                db.pkg(target.pkg)
50            } else {
51                Err(alpm::Error::PkgNotFound)
52            }
53        } else {
54            self.pkg(target.pkg)
55        }
56    }
57
58    fn pkg<S: Into<Vec<u8>>>(&self, pkg: S) -> Result<&'a Package> {
59        let mut pkg = pkg.into();
60        pkg.reserve(1);
61        let pkg = self.iter().find_map(|db| db.pkg(pkg.clone()).ok());
62        pkg.ok_or(alpm::Error::PkgNotFound)
63    }
64}
alpm_utils/db.rs

alpm_utils/
db.rs
