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|
use std::fmt::Display;
use std::str::FromStr;
use std::sync::LazyLock;
use crate::PreStableType::{Alpha, Beta};
use regex::Regex;
/// The Mullvad VPN app product version
pub const VERSION: &str = include_str!(concat!(env!("OUT_DIR"), "/product-version.txt"));
#[derive(Debug, Clone, PartialEq)]
pub struct Version {
pub year: String,
pub incremental: String,
/// A version can have an optional pre-stable type, e.g. alpha or beta. If `pre_stable`
/// and `dev` both are None the version is stable.
pub pre_stable: Option<PreStableType>,
/// All versions may have an optional -dev-[commit hash] suffix.
pub dev: Option<String>,
}
#[derive(Debug, Clone, PartialEq)]
pub enum PreStableType {
Alpha(String),
Beta(String),
}
impl Version {
pub fn parse(version: &str) -> Version {
Version::from_str(version).unwrap()
}
pub fn is_stable(&self) -> bool {
self.pre_stable.is_none() && self.dev.is_none()
}
pub fn alpha(&self) -> Option<&str> {
match &self.pre_stable {
Some(PreStableType::Alpha(v)) => Some(v),
_ => None,
}
}
pub fn beta(&self) -> Option<&str> {
match &self.pre_stable {
Some(PreStableType::Beta(beta)) => Some(beta),
_ => None,
}
}
}
impl Display for Version {
/// Format Version as a string: year.incremental-{alpha|beta}-{dev}
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
let Version {
year,
incremental,
pre_stable,
dev,
} = &self;
write!(f, "{year}.{incremental}")?;
match pre_stable {
Some(PreStableType::Alpha(version)) => write!(f, "-alpha{version}")?,
Some(PreStableType::Beta(version)) => write!(f, "-beta{version}")?,
None => (),
};
if let Some(commit_hash) = dev {
write!(f, "-dev-{commit_hash}")?;
}
Ok(())
}
}
impl FromStr for Version {
type Err = String;
fn from_str(version: &str) -> Result<Self, Self::Err> {
static VERSION_REGEX: LazyLock<Regex> = LazyLock::new(|| {
Regex::new(
r"(?x) # enable insignificant whitespace mode
20(?<year>\d{2})\. # the last two digits of the year
(?<incremental>[1-9]\d?) # the incrementing version number
(?: # (optional) alpha or beta or dev
-alpha(?<alpha>[1-9]\d?\d?)|
-beta(?<beta>[1-9]\d?\d?)
)?
(?:
-dev-(?<dev>[0-9a-f]+)
)?$
",
)
.unwrap()
});
let captures = VERSION_REGEX
.captures(version)
.ok_or_else(|| format!("Version does not match expected format: {version}"))?;
let year = captures
.name("year")
.expect("Missing year")
.as_str()
.to_owned();
let incremental = captures
.name("incremental")
.ok_or("Missing incremental")?
.as_str()
.to_owned();
let alpha = captures.name("alpha").map(|m| m.as_str().to_owned());
let beta = captures.name("beta").map(|m| m.as_str().to_owned());
let dev = captures.name("dev").map(|m| m.as_str().to_owned());
let pre_stable = match (alpha, beta) {
(None, None) => None,
(Some(v), None) => Some(Alpha(v)),
(None, Some(v)) => Some(Beta(v)),
_ => return Err(format!("Invalid version: {version}")),
};
Ok(Version {
year,
incremental,
pre_stable,
dev,
})
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_parse() {
let version = "2021.34";
let parsed = Version::parse(version);
assert_eq!(parsed.year, "21");
assert_eq!(parsed.incremental, "34");
assert_eq!(parsed.alpha(), None);
assert_eq!(parsed.beta(), None);
assert_eq!(parsed.dev, None);
assert!(parsed.is_stable());
}
#[test]
fn test_parse_with_alpha() {
let version = "2023.1-alpha77";
let parsed = Version::parse(version);
assert_eq!(parsed.year, "23");
assert_eq!(parsed.incremental, "1");
assert_eq!(parsed.alpha(), Some("77"));
assert_eq!(parsed.beta(), None);
assert_eq!(parsed.dev, None);
assert!(!parsed.is_stable());
let version = "2021.34-alpha777";
let parsed = Version::parse(version);
assert_eq!(parsed.alpha(), Some("777"));
}
#[test]
fn test_parse_with_beta() {
let version = "2021.34-beta5";
let parsed = Version::parse(version);
assert_eq!(parsed.year, "21");
assert_eq!(parsed.incremental, "34");
assert_eq!(parsed.alpha(), None);
assert_eq!(parsed.beta(), Some("5"));
assert_eq!(parsed.dev, None);
assert!(!parsed.is_stable());
let version = "2021.34-beta453";
let parsed = Version::parse(version);
assert_eq!(parsed.beta(), Some("453"));
}
#[test]
fn test_parse_with_dev() {
let version = "2021.34-dev-0b60e4d87";
let parsed = Version::parse(version);
assert_eq!(parsed.year, "21");
assert_eq!(parsed.incremental, "34");
assert!(!parsed.is_stable());
assert_eq!(parsed.dev, Some("0b60e4d87".to_string()));
assert_eq!(parsed.alpha(), None);
assert_eq!(parsed.beta(), None);
}
#[test]
fn test_parse_both_beta_and_dev() {
let version = "2024.8-beta1-dev-e5483d";
let parsed = Version::parse(version);
assert_eq!(parsed.year, "24");
assert_eq!(parsed.incremental, "8");
assert_eq!(parsed.alpha(), None);
assert_eq!(parsed.beta(), Some("1"));
assert_eq!(parsed.dev, Some("e5483d".to_string()));
assert!(!parsed.is_stable());
}
#[test]
#[should_panic]
fn test_panics_on_invalid_version() {
Version::parse("2021");
}
#[test]
#[should_panic]
fn test_panics_on_invalid_version_type_number() {
Version::parse("2021.1-beta001");
}
#[test]
#[should_panic]
fn test_panics_on_alpha_and_beta_in_same_version() {
Version::parse("2021.1-beta5-alpha2");
}
#[test]
#[should_panic]
fn test_panics_on_dev_without_commit_hash() {
Version::parse("2021.1-dev");
}
}
|
