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android / platform / external / rust / crates / semver / refs/heads/android15-security-release
commit9c4727890d717418d3ccb8cc5a2d4b4432972a62[log] [tgz]
authorAndroid Build Coastguard Worker <[email protected]>Thu May 23 23:15:02 2024 +0000
committerAndroid Build Coastguard Worker <[email protected]>Thu May 23 23:15:02 2024 +0000
tree85647cdbc8b0deedf449a0692ef9fb7da1a2193f
parentb188117b235c965354106b8e9afc300ea597af30 [diff]
parent7eed640af5a8ea4ad2a42d894c7aecf129423813 [diff]
Snap for 11881322 from 7eed640af5a8ea4ad2a42d894c7aecf129423813 to 24Q3-release

Change-Id: I28cac7fd09742a5a18297bd932089e989482ae80
tree: 85647cdbc8b0deedf449a0692ef9fb7da1a2193f
  1. .github/
  2. benches/
  3. src/
  4. tests/
  5. LICENSE ⇨ LICENSE-APACHE
  6. .cargo_vcs_info.json
  7. .gitignore
  8. Android.bp
  9. build.rs
  10. Cargo.toml
  11. Cargo.toml.orig
  12. cargo_embargo.json
  13. LICENSE-APACHE
  14. LICENSE-MIT
  15. METADATA
  16. MODULE_LICENSE_APACHE2
  17. OWNERS
  18. README.md
  19. TEST_MAPPING
README.md

semver

A parser and evaluator for Cargo's flavor of Semantic Versioning.

Semantic Versioning (see https://semver.org) is a guideline for how version numbers are assigned and incremented. It is widely followed within the Cargo/crates.io ecosystem for Rust.

[dependencies]
semver = "1.0"

Compiler support: requires rustc 1.31+

Example

use semver::{BuildMetadata, Prerelease, Version, VersionReq};

fn main() {
    let req = VersionReq::parse(">=1.2.3, <1.8.0").unwrap();

    // Check whether this requirement matches version 1.2.3-alpha.1 (no)
    let version = Version {
        major: 1,
        minor: 2,
        patch: 3,
        pre: Prerelease::new("alpha.1").unwrap(),
        build: BuildMetadata::EMPTY,
    };
    assert!(!req.matches(&version));

    // Check whether it matches 1.3.0 (yes it does)
    let version = Version::parse("1.3.0").unwrap();
    assert!(req.matches(&version));
}

Scope of this crate

Besides Cargo, several other package ecosystems and package managers for other languages also use SemVer: RubyGems/Bundler for Ruby, npm for JavaScript, Composer for PHP, CocoaPods for Objective-C...

The semver crate is specifically intended to implement Cargo's interpretation of Semantic Versioning.

Where the various tools differ in their interpretation or implementation of the spec, this crate follows the implementation choices made by Cargo. If you are operating on version numbers from some other package ecosystem, you will want to use a different semver library which is appropriate to that ecosystem.

The extent of Cargo's SemVer support is documented in the Specifying Dependencies chapter of the Cargo reference.

License