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0.1.2-beta Added: 8 Nov 2026, 02:53 · Built: 7 Nov 2026, 19:32

version.rs Added: Date not recorded 2.9 KB · 77 lines

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1//! Version parsing/comparison (port of `shared/version.js`): 2–4 numeric components,

2//! optional prerelease and build metadata.

4use crate::core::error::{CoreError, CoreResult};

5use once_cell::sync::Lazy;

6use regex::Regex;

7use std::cmp::Ordering;

9static VERSION: Lazy<Regex> = Lazy::new(|| {

10 Regex::new(r"^v?(\d+)\.(\d+)(?:\.(\d+))?(?:\.(\d+))?(?:-([0-9A-Za-z.-]+))?(?:\+[0-9A-Za-z.-]+)?$").unwrap()

11});

13#[derive(Debug, Clone, PartialEq)]

14pub struct Version {

15 pub numbers: [u64; 4],

16 pub prerelease: Vec<String>,

17}

19pub fn parse_version(input: &str) -> CoreResult<Version> {

20 let raw = input.trim();

    let caps = VERSION.captures(raw).ok_or_else(|| CoreError::plain(format!("Invalid version: {}", if raw.is_empty() { "<empty>" } else { raw })))?;

22 let n = |i: usize| caps.get(i).map(|m| m.as_str().parse::<u64>().unwrap_or(u64::MAX)).unwrap_or(0);

23 Ok(Version {

24 numbers: [n(1), n(2), n(3), n(4)],

25 prerelease: caps.get(5).map(|m| m.as_str().split('.').map(str::to_string).collect()).unwrap_or_default(),

26 })

27}

29fn compare_prerelease(left: &[String], right: &[String]) -> Ordering {

30 match (left.is_empty(), right.is_empty()) {

31 (true, true) => return Ordering::Equal,

32 (true, false) => return Ordering::Greater,

33 (false, true) => return Ordering::Less,

34 _ => {}

35 }

36 for i in 0..left.len().max(right.len()) {

37 let (Some(l), Some(r)) = (left.get(i), right.get(i)) else {

38 return if left.get(i).is_none() { Ordering::Less } else { Ordering::Greater };

39 };

40 if l == r {

41 continue;

42 }

43 let ln = l.chars().all(|c| c.is_ascii_digit());

44 let rn = r.chars().all(|c| c.is_ascii_digit());

45 return match (ln, rn) {

46 (true, true) => l.parse::<u128>().unwrap_or(0).cmp(&r.parse::<u128>().unwrap_or(0)),

47 (true, false) => Ordering::Less,

48 (false, true) => Ordering::Greater,

49 _ => l.cmp(r),

50 };

51 }

52 Ordering::Equal

53}

55pub fn compare_versions(left: &str, right: &str) -> CoreResult<Ordering> {

56 let (l, r) = (parse_version(left)?, parse_version(right)?);

57 Ok(l.numbers.cmp(&r.numbers).then_with(|| compare_prerelease(&l.prerelease, &r.prerelease)))

58}

60pub fn cmp_or_equal(left: &str, right: &str) -> Ordering {

61 compare_versions(left, right).unwrap_or(Ordering::Equal)

62}

64#[cfg(test)]

65mod tests {

66 use super::*;

68 #[test]

69 fn ordering() {

70 assert_eq!(compare_versions("0.1.1", "0.1.0").unwrap(), Ordering::Greater);

71 assert_eq!(compare_versions("1.0.0-alpha", "1.0.0").unwrap(), Ordering::Less);

72 assert_eq!(compare_versions("1.0.0-alpha.2", "1.0.0-alpha.10").unwrap(), Ordering::Less);

73 assert_eq!(compare_versions("1.0", "1.0.0.0").unwrap(), Ordering::Equal);

74 assert_eq!(compare_versions("v2.0.0+build", "2.0.0").unwrap(), Ordering::Equal);

75 assert!(parse_version("1").is_err());

76 }

77}

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21f4c48ca8ccc12cb37617185b5a3818d08529a95731df0e208be2482111f0c9

CH-J Proprietary Software License 1.14 · Source is provided under the CH-J Proprietary Software License 1.14. Its availability does not change the license terms or grant additional rights.

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ac8fe790f4ba60fc098f8c985fc2656cfcc6cdc21fb34b30e308a2b54e62258f

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