blob: 94ef31a56556b3a9457feae3372651e1fc92ca9e (
plain)
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
|
use finder::Checker;
#[cfg(unix)]
use libc;
#[cfg(unix)]
use std::ffi::CString;
use std::fs;
#[cfg(unix)]
use std::os::unix::ffi::OsStrExt;
use std::path::Path;
pub struct ExecutableChecker;
impl ExecutableChecker {
pub fn new() -> ExecutableChecker {
ExecutableChecker
}
}
impl Checker for ExecutableChecker {
#[cfg(unix)]
fn is_valid(&self, path: &Path) -> bool {
CString::new(path.as_os_str().as_bytes())
.and_then(|c| Ok(unsafe { libc::access(c.as_ptr(), libc::X_OK) == 0 }))
.unwrap_or(false)
}
#[cfg(windows)]
fn is_valid(&self, _path: &Path) -> bool {
true
}
}
pub struct ExistedChecker;
impl ExistedChecker {
pub fn new() -> ExistedChecker {
ExistedChecker
}
}
impl Checker for ExistedChecker {
#[cfg(target_os = "windows")]
fn is_valid(&self, path: &Path) -> bool {
fs::symlink_metadata(path)
.map(|metadata| {
let file_type = metadata.file_type();
file_type.is_file() || file_type.is_symlink()
})
.unwrap_or(false)
}
#[cfg(not(target_os = "windows"))]
fn is_valid(&self, path: &Path) -> bool {
fs::metadata(path)
.map(|metadata| metadata.is_file())
.unwrap_or(false)
}
}
pub struct CompositeChecker {
checkers: Vec<Box<dyn Checker>>,
}
impl CompositeChecker {
pub fn new() -> CompositeChecker {
CompositeChecker {
checkers: Vec::new(),
}
}
pub fn add_checker(mut self, checker: Box<dyn Checker>) -> CompositeChecker {
self.checkers.push(checker);
self
}
}
impl Checker for CompositeChecker {
fn is_valid(&self, path: &Path) -> bool {
self.checkers.iter().all(|checker| checker.is_valid(path))
}
}
|
