Google Git
Sign in
android / platform / external / rust / crates / semver / refs/heads/aml_art_341810020
commit988839a2c85963f7c280c452bb9e51e2f40c45cb[log] [tgz]
authorAndroid Build Coastguard Worker <[email protected]>Fri Jul 07 04:44:50 2023 +0000
committerAndroid Build Coastguard Worker <[email protected]>Fri Jul 07 04:44:50 2023 +0000
tree8d9f6d7719ba1ff0dc5cdbd5c35fea9dfaa2ef8a
parent9070be305b28eb0d6429c2ad22a53a6741456c26 [diff]
parentdab5a943946be1805fedc9c609c1a6647f156f9e [diff]
Snap for 10453563 from dab5a943946be1805fedc9c609c1a6647f156f9e to mainline-art-release

Change-Id: I15b255b903709facd2605f14f24d9f51cb260ed0
tree: 8d9f6d7719ba1ff0dc5cdbd5c35fea9dfaa2ef8a
  1. .github/
  2. benches/
  3. src/
  4. tests/
  5. LICENSE ⇨ LICENSE-APACHE
  6. .cargo_vcs_info.json
  7. .clippy.toml
  8. .gitignore
  9. Android.bp
  10. build.rs
  11. Cargo.toml
  12. Cargo.toml.orig
  13. cargo2android.json
  14. LICENSE-APACHE
  15. LICENSE-MIT
  16. METADATA
  17. MODULE_LICENSE_APACHE2
  18. OWNERS
  19. README.md
  20. 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