1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
#![feature(str_strip)]
pub mod apt;
use std::path::Path;
use apt::parser::{depends, recommends, search};
use apt::{apt_cache, AptError};
use serde::{Deserialize, Serialize};
use std::io;
use std::process::{Command, Output};
#[derive(PartialEq, Deserialize, Serialize)]
pub struct Package {
pub name: String,
}
impl Package {
pub fn new<T: Copy + Into<String>>(s: T) -> Result<Self, AptError> {
match apt_cache("search", &s.into(), &search) {
Some(p) => {
if p.contains(&s.into()) {
Ok(Package { name: s.into() })
} else {
Err(AptError::NotFound(format!(
"The package \"{}\" was not found",
s.into()
)))
}
}
None => Err(AptError::NotFound(format!(
"The package \"{}\" was not found",
s.into()
))),
}
}
pub fn depends(&self) -> Option<Vec<Package>> {
apt_cache("depends", self.name.as_str(), &depends).and_then(|v| {
Some(
v.iter()
.map(|p| Package::new(p).expect("Error parsing dependancy"))
.collect::<Vec<Package>>(),
)
})
}
pub fn recommends(&self) -> Option<Vec<Package>> {
apt_cache("depends", self.name.as_str(), &recommends).and_then(|v| {
Some(
v.iter()
.map(|p| Package::new(p).expect("Error parsing dependancy"))
.collect::<Vec<Package>>(),
)
})
}
pub fn get_source<P: AsRef<Path>>(&self, dest: P) -> io::Result<Output> {
Command::new("apt").arg("source").arg(self.name.as_str()).current_dir(dest).output()
}
}
#[cfg(test)]
mod tests {
use super::*;
fn create_pkg() -> Package {
Package::new("bash").unwrap()
}
#[test]
fn test_depends() {
assert!(create_pkg()
.depends()
.unwrap()
.contains(&Package::new("base-files").unwrap()))
}
}