rsmount 0.2.2

Safe Rust wrapper around the `util-linux/libmount` C library
Documentation 
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

// Copyright (c) 2023 Nick Piaddo
// SPDX-License-Identifier: Apache-2.0 OR MIT

// From dependency library

// From standard library
use std::fmt;
use std::str::FromStr;

// From this library
use crate::core::errors::ParserError;

/// A device's UUID.
#[derive(Clone, Debug, Eq, PartialEq)]
pub struct Uuid(String);

impl Uuid {
    /// View this `Uuid` as a UTF-8 `str`.
    pub fn as_str(&self) -> &str {
        &self.0
    }
}

impl fmt::Display for Uuid {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        let uuid = &self.0;

        write!(f, "{uuid}")
    }
}

impl FromStr for Uuid {
    type Err = ParserError;

    fn from_str(s: &str) -> Result<Self, Self::Err> {
        // Remove opening opening/closing quotes/double-quotes if present
        let err_missing_dquote = format!("missing closing double-quote in UUID: {:?}", s);
        let err_missing_quote = format!("missing closing quote in UUID: {:?}", s);

        let trimmed = s.trim();
        let parsed = if trimmed.starts_with('"') {
            trimmed
                .strip_prefix('"')
                .and_then(|s| s.strip_suffix('"'))
                .ok_or(ParserError::Label(err_missing_dquote))
        } else if trimmed.starts_with('\'') {
            trimmed
                .strip_prefix('\'')
                .and_then(|s| s.strip_suffix('\''))
                .ok_or(ParserError::Label(err_missing_quote))
        } else {
            Ok(trimmed)
        }?;

        let uuid = Self(parsed.trim().to_owned());

        Ok(uuid)
    }
}