monger_core/
util.rs

1use std::str::FromStr;
2
3use lazy_static::lazy_static;
4use regex::Regex;
5use semver::Version;
6
7use crate::error::{Error, Result};
8
9lazy_static! {
10    static ref VERSION_WITHOUT_PATCH: Regex = Regex::new(r"^(\d+)\.(\d+)$").unwrap();
11}
12
13pub enum FileExtension {
14    Msi,
15    Tgz,
16}
17
18impl FileExtension {
19    pub fn name(&self) -> &'static str {
20        match *self {
21            FileExtension::Msi => "msi",
22            FileExtension::Tgz => "tgz",
23        }
24    }
25}
26
27#[inline]
28pub fn get_from_str<T: FromStr>(s: &str) -> Option<T> {
29    FromStr::from_str(s).ok()
30}
31
32#[macro_export]
33macro_rules! version {
34    ($major:expr, $minor:expr, $patch:expr) => {{
35        ::semver::Version {
36            major: $major,
37            minor: $minor,
38            patch: $patch,
39            pre: Vec::new(),
40            build: Vec::new(),
41        }
42    }};
43}
44
45pub fn select_newer_version(existing: Option<Version>, found: Version) -> Version {
46    if let Some(version) = existing {
47        if version > found {
48            return version;
49        }
50    }
51
52    found
53}
54
55pub fn parse_major_minor_version(version: &str) -> Option<(u64, u64)> {
56    VERSION_WITHOUT_PATCH
57        .captures(version)
58        .map(|c| (c[1].parse().unwrap(), c[2].parse().unwrap()))
59}
60
61pub fn parse_version(version: &str) -> Result<Version> {
62    Version::parse(version).map_err(|_| {
63        Error::VersionNotFound {
64            version: version.into(),
65        }
66        .into()
67    })
68}
monger_core/util.rs

monger_core/
util.rs
