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{
"git": {
"sha1": "6093aa9de6428df2e1c04aa9e969f1af7c34664f"
}
}

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target
Cargo.lock
.DS_Store

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# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
#
# When uploading crates to the registry Cargo will automatically
# "normalize" Cargo.toml files for maximal compatibility
# with all versions of Cargo and also rewrite `path` dependencies
# to registry (e.g., crates.io) dependencies
#
# If you believe there's an error in this file please file an
# issue against the rust-lang/cargo repository. If you're
# editing this file be aware that the upstream Cargo.toml
# will likely look very different (and much more reasonable)
[package]
edition = "2018"
name = "rustc_version"
version = "0.4.0"
authors = ["Dirkjan Ochtman <dirkjan@ochtman.nl>", "Marvin Löbel <loebel.marvin@gmail.com>"]
description = "A library for querying the version of a installed rustc compiler"
documentation = "https://docs.rs/rustc_version/"
readme = "README.md"
keywords = ["version", "rustc"]
license = "MIT/Apache-2.0"
repository = "https://github.com/Kimundi/rustc-version-rs"
[dependencies.semver]
version = "1.0"
[dev-dependencies.doc-comment]
version = "0.3"

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[package]
name = "rustc_version"
version = "0.4.0"
authors = ["Dirkjan Ochtman <dirkjan@ochtman.nl>", "Marvin Löbel <loebel.marvin@gmail.com>"]
license = "MIT/Apache-2.0"
description = "A library for querying the version of a installed rustc compiler"
readme = "README.md"
documentation = "https://docs.rs/rustc_version/"
repository = "https://github.com/Kimundi/rustc-version-rs"
keywords = ["version", "rustc"]
edition = "2018"
[dependencies]
semver = "1.0"
[dev-dependencies]
doc-comment = "0.3"

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rustc-version-rs
================
[![Documentation](https://docs.rs/rustc_version/badge.svg)](https://docs.rs/rustc_version/)
[![Crates.io](https://img.shields.io/crates/v/rustc_version.svg)](https://crates.io/crates/rustc_version)
[![Build status](https://github.com/Kimundi/rustc-version-rs/workflows/CI/badge.svg)](https://github.com/Kimundi/rustc-version-rs/actions?query=workflow%3ACI)
A library for querying the version of a `rustc` compiler.
This can be used by build scripts or other tools dealing with Rust sources
to make decisions based on the version of the compiler. Current MSRV is 1.32.0.
If this is of interest, also consider looking at these other crates:
* [autocfg](https://crates.io/crates/autocfg/), which helps with feature detection instead of depending on compiler versions
* [rustversion](https://github.com/dtolnay/rustversion) provides a procedural macro with no other dependencies
# Getting Started
[rustc-version-rs is available on crates.io](https://crates.io/crates/rustc_version).
It is recommended to look there for the newest released version, as well as links to the newest builds of the docs.
At the point of the last update of this README, the latest published version could be used like this:
Add the following dependency to your Cargo manifest...
```toml
[build-dependencies]
rustc_version = "0.2"
```
... and see the [docs](https://docs.rs/rustc_version) for how to use it.
# Example
```rust
// This could be a cargo build script
use rustc_version::{version, version_meta, Channel, Version};
fn main() {
// Assert we haven't travelled back in time
assert!(version().unwrap().major >= 1);
// Set cfg flags depending on release channel
match version_meta().unwrap().channel {
Channel::Stable => {
println!("cargo:rustc-cfg=RUSTC_IS_STABLE");
}
Channel::Beta => {
println!("cargo:rustc-cfg=RUSTC_IS_BETA");
}
Channel::Nightly => {
println!("cargo:rustc-cfg=RUSTC_IS_NIGHTLY");
}
Channel::Dev => {
println!("cargo:rustc-cfg=RUSTC_IS_DEV");
}
}
// Check for a minimum version
if version().unwrap() >= Version::parse("1.4.0").unwrap() {
println!("cargo:rustc-cfg=compiler_has_important_bugfix");
}
}
```
## License
Licensed under either of
* Apache License, Version 2.0 ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
* MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
at your option.
### Contribution
Unless you explicitly state otherwise, any contribution intentionally submitted
for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any
additional terms or conditions.

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[licenses]
allow-osi-fsf-free = "either"
copyleft = "deny"

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// Copyright 2016 rustc-version-rs developers
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
#![warn(missing_docs)]
//! Simple library for getting the version information of a `rustc`
//! compiler.
//!
//! This can be used by build scripts or other tools dealing with Rust sources
//! to make decisions based on the version of the compiler.
//!
//! It calls `$RUSTC --version -v` and parses the output, falling
//! back to `rustc` if `$RUSTC` is not set.
//!
//! # Example
//!
//! ```rust
//! // This could be a cargo build script
//!
//! use rustc_version::{version, version_meta, Channel, Version};
//!
//! // Assert we haven't travelled back in time
//! assert!(version().unwrap().major >= 1);
//!
//! // Set cfg flags depending on release channel
//! match version_meta().unwrap().channel {
//! Channel::Stable => {
//! println!("cargo:rustc-cfg=RUSTC_IS_STABLE");
//! }
//! Channel::Beta => {
//! println!("cargo:rustc-cfg=RUSTC_IS_BETA");
//! }
//! Channel::Nightly => {
//! println!("cargo:rustc-cfg=RUSTC_IS_NIGHTLY");
//! }
//! Channel::Dev => {
//! println!("cargo:rustc-cfg=RUSTC_IS_DEV");
//! }
//! }
//!
//! // Check for a minimum version
//! if version().unwrap() >= Version::parse("1.4.0").unwrap() {
//! println!("cargo:rustc-cfg=compiler_has_important_bugfix");
//! }
//! ```
#[cfg(test)]
#[macro_use]
extern crate doc_comment;
#[cfg(test)]
doctest!("../README.md");
use std::collections::HashMap;
use std::process::Command;
use std::{env, error, fmt, io, num, str};
use std::{ffi::OsString, str::FromStr};
// Convenience re-export to allow version comparison without needing to add
// semver crate.
pub use semver::Version;
use Error::*;
/// Release channel of the compiler.
#[derive(Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash, Debug)]
pub enum Channel {
/// Development release channel
Dev,
/// Nightly release channel
Nightly,
/// Beta release channel
Beta,
/// Stable release channel
Stable,
}
/// LLVM version
///
/// LLVM's version numbering scheme is not semver compatible until version 4.0
///
/// rustc [just prints the major and minor versions], so other parts of the version are not included.
///
/// [just prints the major and minor versions]: https://github.com/rust-lang/rust/blob/b5c9e2448c9ace53ad5c11585803894651b18b0a/compiler/rustc_codegen_llvm/src/llvm_util.rs#L173-L178
#[derive(Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub struct LlvmVersion {
// fields must be ordered major, minor for comparison to be correct
/// Major version
pub major: u64,
/// Minor version
pub minor: u64,
// TODO: expose micro version here
}
impl fmt::Display for LlvmVersion {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "{}.{}", self.major, self.minor)
}
}
impl FromStr for LlvmVersion {
type Err = LlvmVersionParseError;
fn from_str(s: &str) -> Result<Self, Self::Err> {
let mut parts = s
.split('.')
.map(|part| -> Result<u64, LlvmVersionParseError> {
if part == "0" {
Ok(0)
} else if part.starts_with('0') {
Err(LlvmVersionParseError::ComponentMustNotHaveLeadingZeros)
} else if part.starts_with('-') || part.starts_with('+') {
Err(LlvmVersionParseError::ComponentMustNotHaveSign)
} else {
Ok(part.parse()?)
}
});
let major = parts.next().unwrap()?;
let mut minor = 0;
if let Some(part) = parts.next() {
minor = part?;
} else if major < 4 {
// LLVM versions earlier than 4.0 have significant minor versions, so require the minor version in this case.
return Err(LlvmVersionParseError::MinorVersionRequiredBefore4);
}
if let Some(Err(e)) = parts.next() {
return Err(e);
}
if parts.next().is_some() {
return Err(LlvmVersionParseError::TooManyComponents);
}
Ok(Self { major, minor })
}
}
/// Rustc version plus metadata like git short hash and build date.
#[derive(Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub struct VersionMeta {
/// Version of the compiler
pub semver: Version,
/// Git short hash of the build of the compiler
pub commit_hash: Option<String>,
/// Commit date of the compiler
pub commit_date: Option<String>,
/// Build date of the compiler; this was removed between Rust 1.0.0 and 1.1.0.
pub build_date: Option<String>,
/// Release channel of the compiler
pub channel: Channel,
/// Host target triple of the compiler
pub host: String,
/// Short version string of the compiler
pub short_version_string: String,
/// Version of LLVM used by the compiler
pub llvm_version: Option<LlvmVersion>,
}
impl VersionMeta {
/// Returns the version metadata for `cmd`, which should be a `rustc` command.
pub fn for_command(mut cmd: Command) -> Result<VersionMeta> {
let out = cmd
.arg("-vV")
.output()
.map_err(Error::CouldNotExecuteCommand)?;
if !out.status.success() {
return Err(Error::CommandError {
stdout: String::from_utf8_lossy(&out.stdout).into(),
stderr: String::from_utf8_lossy(&out.stderr).into(),
});
}
version_meta_for(str::from_utf8(&out.stdout)?)
}
}
/// Returns the `rustc` SemVer version.
pub fn version() -> Result<Version> {
Ok(version_meta()?.semver)
}
/// Returns the `rustc` SemVer version and additional metadata
/// like the git short hash and build date.
pub fn version_meta() -> Result<VersionMeta> {
let cmd = env::var_os("RUSTC").unwrap_or_else(|| OsString::from("rustc"));
VersionMeta::for_command(Command::new(cmd))
}
/// Parses a "rustc -vV" output string and returns
/// the SemVer version and additional metadata
/// like the git short hash and build date.
pub fn version_meta_for(verbose_version_string: &str) -> Result<VersionMeta> {
let mut map = HashMap::new();
for (i, line) in verbose_version_string.lines().enumerate() {
if i == 0 {
map.insert("short", line);
continue;
}
let mut parts = line.splitn(2, ": ");
let key = match parts.next() {
Some(key) => key,
None => continue,
};
if let Some(value) = parts.next() {
map.insert(key, value);
}
}
let short_version_string = expect_key("short", &map)?;
let host = expect_key("host", &map)?;
let release = expect_key("release", &map)?;
let semver: Version = release.parse()?;
let channel = match semver.pre.split('.').next().unwrap() {
"" => Channel::Stable,
"dev" => Channel::Dev,
"beta" => Channel::Beta,
"nightly" => Channel::Nightly,
x => return Err(Error::UnknownPreReleaseTag(x.to_owned())),
};
let commit_hash = expect_key_or_unknown("commit-hash", &map)?;
let commit_date = expect_key_or_unknown("commit-date", &map)?;
let build_date = map
.get("build-date")
.filter(|&v| *v != "unknown")
.map(|&v| String::from(v));
let llvm_version = match map.get("LLVM version") {
Some(&v) => Some(v.parse()?),
None => None,
};
Ok(VersionMeta {
semver,
commit_hash,
commit_date,
build_date,
channel,
host,
short_version_string,
llvm_version,
})
}
fn expect_key_or_unknown(key: &str, map: &HashMap<&str, &str>) -> Result<Option<String>, Error> {
match map.get(key) {
Some(&v) if v == "unknown" => Ok(None),
Some(&v) => Ok(Some(String::from(v))),
None => Err(Error::UnexpectedVersionFormat),
}
}
fn expect_key(key: &str, map: &HashMap<&str, &str>) -> Result<String, Error> {
map.get(key)
.map(|&v| String::from(v))
.ok_or(Error::UnexpectedVersionFormat)
}
/// LLVM Version Parse Error
#[derive(Debug)]
pub enum LlvmVersionParseError {
/// An error occurred in parsing a version component as an integer
ParseIntError(num::ParseIntError),
/// A version component must not have leading zeros
ComponentMustNotHaveLeadingZeros,
/// A version component has a sign
ComponentMustNotHaveSign,
/// Minor version component must be zero on LLVM versions later than 4.0
MinorVersionMustBeZeroAfter4,
/// Minor version component is required on LLVM versions earlier than 4.0
MinorVersionRequiredBefore4,
/// Too many components
TooManyComponents,
}
impl From<num::ParseIntError> for LlvmVersionParseError {
fn from(e: num::ParseIntError) -> Self {
LlvmVersionParseError::ParseIntError(e)
}
}
impl fmt::Display for LlvmVersionParseError {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match self {
LlvmVersionParseError::ParseIntError(e) => {
write!(f, "error parsing LLVM version component: {}", e)
}
LlvmVersionParseError::ComponentMustNotHaveLeadingZeros => {
write!(f, "a version component must not have leading zeros")
}
LlvmVersionParseError::ComponentMustNotHaveSign => {
write!(f, "a version component must not have a sign")
}
LlvmVersionParseError::MinorVersionMustBeZeroAfter4 => write!(
f,
"LLVM's minor version component must be 0 for versions greater than 4.0"
),
LlvmVersionParseError::MinorVersionRequiredBefore4 => write!(
f,
"LLVM's minor version component is required for versions less than 4.0"
),
LlvmVersionParseError::TooManyComponents => write!(f, "too many version components"),
}
}
}
impl error::Error for LlvmVersionParseError {
fn source(&self) -> Option<&(dyn error::Error + 'static)> {
match self {
LlvmVersionParseError::ParseIntError(e) => Some(e),
LlvmVersionParseError::ComponentMustNotHaveLeadingZeros
| LlvmVersionParseError::ComponentMustNotHaveSign
| LlvmVersionParseError::MinorVersionMustBeZeroAfter4
| LlvmVersionParseError::MinorVersionRequiredBefore4
| LlvmVersionParseError::TooManyComponents => None,
}
}
}
/// The error type for this crate.
#[derive(Debug)]
pub enum Error {
/// An error occurred while trying to find the `rustc` to run.
CouldNotExecuteCommand(io::Error),
/// Error output from the command that was run.
CommandError {
/// stdout output from the command
stdout: String,
/// stderr output from the command
stderr: String,
},
/// The output of `rustc -vV` was not valid utf-8.
Utf8Error(str::Utf8Error),
/// The output of `rustc -vV` was not in the expected format.
UnexpectedVersionFormat,
/// An error occurred in parsing the semver.
SemVerError(semver::Error),
/// The pre-release tag is unknown.
UnknownPreReleaseTag(String),
/// An error occurred in parsing a `LlvmVersion`.
LlvmVersionError(LlvmVersionParseError),
}
impl fmt::Display for Error {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match *self {
CouldNotExecuteCommand(ref e) => write!(f, "could not execute command: {}", e),
CommandError {
ref stdout,
ref stderr,
} => write!(
f,
"error from command -- stderr:\n\n{}\n\nstderr:\n\n{}",
stderr, stdout,
),
Utf8Error(_) => write!(f, "invalid UTF-8 output from `rustc -vV`"),
UnexpectedVersionFormat => write!(f, "unexpected `rustc -vV` format"),
SemVerError(ref e) => write!(f, "error parsing version: {}", e),
UnknownPreReleaseTag(ref i) => write!(f, "unknown pre-release tag: {}", i),
LlvmVersionError(ref e) => write!(f, "error parsing LLVM's version: {}", e),
}
}
}
impl error::Error for Error {
fn source(&self) -> Option<&(dyn error::Error + 'static)> {
match *self {
CouldNotExecuteCommand(ref e) => Some(e),
CommandError { .. } => None,
Utf8Error(ref e) => Some(e),
UnexpectedVersionFormat => None,
SemVerError(ref e) => Some(e),
UnknownPreReleaseTag(_) => None,
LlvmVersionError(ref e) => Some(e),
}
}
}
macro_rules! impl_from {
($($err_ty:ty => $variant:ident),* $(,)*) => {
$(
impl From<$err_ty> for Error {
fn from(e: $err_ty) -> Error {
Error::$variant(e)
}
}
)*
}
}
impl_from! {
str::Utf8Error => Utf8Error,
semver::Error => SemVerError,
LlvmVersionParseError => LlvmVersionError,
}
/// The result type for this crate.
pub type Result<T, E = Error> = std::result::Result<T, E>;

456
tests/all.rs Normal file
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@ -0,0 +1,456 @@
#![allow(clippy::match_like_matches_macro)]
use std::process::Command;
use rustc_version::{
version, version_meta, version_meta_for, Channel, Error, LlvmVersion, LlvmVersionParseError,
Version, VersionMeta,
};
#[test]
fn rustc_error() {
let mut cmd = Command::new("rustc");
cmd.arg("--FOO");
let stderr = match VersionMeta::for_command(cmd) {
Err(Error::CommandError { stdout: _, stderr }) => stderr,
_ => panic!("command error expected"),
};
assert_eq!(stderr, "error: Unrecognized option: \'FOO\'\n\n");
}
#[test]
fn smoketest() {
let v = version().unwrap();
assert!(v.major >= 1);
let v = version_meta().unwrap();
assert!(v.semver.major >= 1);
assert!(version().unwrap() >= Version::parse("1.0.0").unwrap());
}
#[test]
fn parse_1_0_0() {
let version = version_meta_for(
"rustc 1.0.0 (a59de37e9 2015-05-13) (built 2015-05-14)
binary: rustc
commit-hash: a59de37e99060162a2674e3ff45409ac73595c0e
commit-date: 2015-05-13
build-date: 2015-05-14
host: x86_64-unknown-linux-gnu
release: 1.0.0",
)
.unwrap();
assert_eq!(version.semver, Version::parse("1.0.0").unwrap());
assert_eq!(
version.commit_hash,
Some("a59de37e99060162a2674e3ff45409ac73595c0e".into())
);
assert_eq!(version.commit_date, Some("2015-05-13".into()));
assert_eq!(version.build_date, Some("2015-05-14".into()));
assert_eq!(version.channel, Channel::Stable);
assert_eq!(version.host, "x86_64-unknown-linux-gnu");
assert_eq!(
version.short_version_string,
"rustc 1.0.0 (a59de37e9 2015-05-13) (built 2015-05-14)"
);
assert_eq!(version.llvm_version, None);
}
#[test]
fn parse_unknown() {
let version = version_meta_for(
"rustc 1.3.0
binary: rustc
commit-hash: unknown
commit-date: unknown
host: x86_64-unknown-linux-gnu
release: 1.3.0",
)
.unwrap();
assert_eq!(version.semver, Version::parse("1.3.0").unwrap());
assert_eq!(version.commit_hash, None);
assert_eq!(version.commit_date, None);
assert_eq!(version.channel, Channel::Stable);
assert_eq!(version.host, "x86_64-unknown-linux-gnu");
assert_eq!(version.short_version_string, "rustc 1.3.0");
assert_eq!(version.llvm_version, None);
}
#[test]
fn parse_nightly() {
let version = version_meta_for(
"rustc 1.5.0-nightly (65d5c0833 2015-09-29)
binary: rustc
commit-hash: 65d5c083377645a115c4ac23a620d3581b9562b6
commit-date: 2015-09-29
host: x86_64-unknown-linux-gnu
release: 1.5.0-nightly",
)
.unwrap();
assert_eq!(version.semver, Version::parse("1.5.0-nightly").unwrap());
assert_eq!(
version.commit_hash,
Some("65d5c083377645a115c4ac23a620d3581b9562b6".into())
);
assert_eq!(version.commit_date, Some("2015-09-29".into()));
assert_eq!(version.channel, Channel::Nightly);
assert_eq!(version.host, "x86_64-unknown-linux-gnu");
assert_eq!(
version.short_version_string,
"rustc 1.5.0-nightly (65d5c0833 2015-09-29)"
);
assert_eq!(version.llvm_version, None);
}
#[test]
fn parse_stable() {
let version = version_meta_for(
"rustc 1.3.0 (9a92aaf19 2015-09-15)
binary: rustc
commit-hash: 9a92aaf19a64603b02b4130fe52958cc12488900
commit-date: 2015-09-15
host: x86_64-unknown-linux-gnu
release: 1.3.0",
)
.unwrap();
assert_eq!(version.semver, Version::parse("1.3.0").unwrap());
assert_eq!(
version.commit_hash,
Some("9a92aaf19a64603b02b4130fe52958cc12488900".into())
);
assert_eq!(version.commit_date, Some("2015-09-15".into()));
assert_eq!(version.channel, Channel::Stable);
assert_eq!(version.host, "x86_64-unknown-linux-gnu");
assert_eq!(
version.short_version_string,
"rustc 1.3.0 (9a92aaf19 2015-09-15)"
);
assert_eq!(version.llvm_version, None);
}
#[test]
fn parse_1_16_0_nightly() {
let version = version_meta_for(
"rustc 1.16.0-nightly (5d994d8b7 2017-01-05)
binary: rustc
commit-hash: 5d994d8b7e482e87467d4a521911477bd8284ce3
commit-date: 2017-01-05
host: x86_64-unknown-linux-gnu
release: 1.16.0-nightly
LLVM version: 3.9",
)
.unwrap();
assert_eq!(version.semver, Version::parse("1.16.0-nightly").unwrap());
assert_eq!(
version.commit_hash,
Some("5d994d8b7e482e87467d4a521911477bd8284ce3".into())
);
assert_eq!(version.commit_date, Some("2017-01-05".into()));
assert_eq!(version.channel, Channel::Nightly);
assert_eq!(version.host, "x86_64-unknown-linux-gnu");
assert_eq!(
version.short_version_string,
"rustc 1.16.0-nightly (5d994d8b7 2017-01-05)"
);
assert_eq!(
version.llvm_version,
Some(LlvmVersion { major: 3, minor: 9 })
);
}
#[test]
fn parse_1_47_0_stable() {
let version = version_meta_for(
"rustc 1.47.0 (18bf6b4f0 2020-10-07)
binary: rustc
commit-hash: 18bf6b4f01a6feaf7259ba7cdae58031af1b7b39
commit-date: 2020-10-07
host: powerpc64le-unknown-linux-gnu
release: 1.47.0
LLVM version: 11.0",
)
.unwrap();
assert_eq!(version.semver, Version::parse("1.47.0").unwrap());
assert_eq!(
version.commit_hash,
Some("18bf6b4f01a6feaf7259ba7cdae58031af1b7b39".into())
);
assert_eq!(version.commit_date, Some("2020-10-07".into()));
assert_eq!(version.channel, Channel::Stable);
assert_eq!(version.host, "powerpc64le-unknown-linux-gnu");
assert_eq!(
version.short_version_string,
"rustc 1.47.0 (18bf6b4f0 2020-10-07)"
);
assert_eq!(
version.llvm_version,
Some(LlvmVersion {
major: 11,
minor: 0,
})
);
}
#[test]
fn parse_llvm_micro() {
let version = version_meta_for(
"rustc 1.51.0-nightly (4253153db 2021-01-17)
binary: rustc
commit-hash: 4253153db205251f72ea4493687a31e04a2a8ca0
commit-date: 2021-01-17
host: x86_64-pc-windows-msvc
release: 1.51.0-nightly
LLVM version: 11.0.1",
)
.unwrap();
assert_eq!(version.semver, Version::parse("1.51.0-nightly").unwrap());
assert_eq!(
version.commit_hash.unwrap(),
"4253153db205251f72ea4493687a31e04a2a8ca0"
);
assert_eq!(version.commit_date.unwrap(), "2021-01-17");
assert_eq!(version.host, "x86_64-pc-windows-msvc");
assert_eq!(
version.short_version_string,
"rustc 1.51.0-nightly (4253153db 2021-01-17)"
);
assert_eq!(
version.llvm_version,
Some(LlvmVersion {
major: 11,
minor: 0
})
);
}
#[test]
fn parse_debian_buster() {
let version = version_meta_for(
"rustc 1.41.1
binary: rustc
commit-hash: unknown
commit-date: unknown
host: powerpc64le-unknown-linux-gnu
release: 1.41.1
LLVM version: 7.0",
)
.unwrap();
assert_eq!(version.semver, Version::parse("1.41.1").unwrap());
assert_eq!(version.commit_hash, None);
assert_eq!(version.commit_date, None);
assert_eq!(version.channel, Channel::Stable);
assert_eq!(version.host, "powerpc64le-unknown-linux-gnu");
assert_eq!(version.short_version_string, "rustc 1.41.1");
assert_eq!(
version.llvm_version,
Some(LlvmVersion { major: 7, minor: 0 })
);
}
#[test]
fn parse_termux() {
let version = version_meta_for(
"rustc 1.46.0
binary: rustc
commit-hash: unknown
commit-date: unknown
host: aarch64-linux-android
release: 1.46.0
LLVM version: 10.0",
)
.unwrap();
assert_eq!(version.semver, Version::parse("1.46.0").unwrap());
assert_eq!(version.commit_hash, None);
assert_eq!(version.commit_date, None);
assert_eq!(version.channel, Channel::Stable);
assert_eq!(version.host, "aarch64-linux-android");
assert_eq!(version.short_version_string, "rustc 1.46.0");
assert_eq!(
version.llvm_version,
Some(LlvmVersion {
major: 10,
minor: 0,
})
);
}
#[test]
fn parse_llvm_version_empty() {
let res: Result<LlvmVersion, _> = "".parse();
assert!(match res {
Err(LlvmVersionParseError::ParseIntError(_)) => true,
_ => false,
});
}
#[test]
fn parse_llvm_version_invalid_char() {
let res: Result<LlvmVersion, _> = "A".parse();
assert!(match res {
Err(LlvmVersionParseError::ParseIntError(_)) => true,
_ => false,
});
}
#[test]
fn parse_llvm_version_overflow() {
let res: Result<LlvmVersion, _> = "9999999999999999999999999999999".parse();
assert!(match res {
Err(LlvmVersionParseError::ParseIntError(_)) => true,
_ => false,
});
}
#[test]
fn parse_llvm_version_leading_zero_on_zero() {
let res: Result<LlvmVersion, _> = "00".parse();
assert!(match res {
Err(LlvmVersionParseError::ComponentMustNotHaveLeadingZeros) => true,
_ => false,
});
}
#[test]
fn parse_llvm_version_leading_zero_on_nonzero() {
let res: Result<LlvmVersion, _> = "01".parse();
assert!(match res {
Err(LlvmVersionParseError::ComponentMustNotHaveLeadingZeros) => true,
_ => false,
});
}
#[test]
fn parse_llvm_version_4_components() {
let res: Result<LlvmVersion, _> = "4.0.0.0".parse();
assert!(match res {
Err(LlvmVersionParseError::TooManyComponents) => true,
_ => false,
});
}
#[test]
fn parse_llvm_version_component_sign_plus() {
let res: Result<LlvmVersion, _> = "1.+3".parse();
assert!(match res {
Err(LlvmVersionParseError::ComponentMustNotHaveSign) => true,
_ => false,
});
}
#[test]
fn parse_llvm_version_component_sign_minus() {
let res: Result<LlvmVersion, _> = "1.-3".parse();
assert!(match res {
Err(LlvmVersionParseError::ComponentMustNotHaveSign) => true,
_ => false,
});
}
#[test]
fn parse_llvm_version_3() {
let res: Result<LlvmVersion, _> = "3".parse();
assert!(match res {
Err(LlvmVersionParseError::MinorVersionRequiredBefore4) => true,
_ => false,
});
}
#[test]
fn parse_llvm_version_5() {
let v: LlvmVersion = "5".parse().unwrap();
assert_eq!(v, LlvmVersion { major: 5, minor: 0 });
}
#[test]
fn parse_llvm_version_5_0() {
let v: LlvmVersion = "5.0".parse().unwrap();
assert_eq!(v, LlvmVersion { major: 5, minor: 0 });
}
#[test]
fn parse_llvm_version_4_0() {
let v: LlvmVersion = "4.0".parse().unwrap();
assert_eq!(v, LlvmVersion { major: 4, minor: 0 });
}
#[test]
fn parse_llvm_version_3_0() {
let v: LlvmVersion = "3.0".parse().unwrap();
assert_eq!(v, LlvmVersion { major: 3, minor: 0 });
}
#[test]
fn parse_llvm_version_3_9() {
let v: LlvmVersion = "3.9".parse().unwrap();
assert_eq!(v, LlvmVersion { major: 3, minor: 9 });
}
#[test]
fn parse_llvm_version_11_0() {
let v: LlvmVersion = "11.0".parse().unwrap();
assert_eq!(
v,
LlvmVersion {
major: 11,
minor: 0
}
);
}
#[test]
fn parse_llvm_version_11() {
let v: LlvmVersion = "11".parse().unwrap();
assert_eq!(
v,
LlvmVersion {
major: 11,
minor: 0
}
);
}
#[test]
fn test_llvm_version_comparison() {
// check that field order is correct
assert!(LlvmVersion { major: 3, minor: 9 } < LlvmVersion { major: 4, minor: 0 });
}
/*
#[test]
fn version_matches_replacement() {
let f = |s1: &str, s2: &str| {
let a = Version::parse(s1).unwrap();
let b = Version::parse(s2).unwrap();
println!("{} <= {} : {}", s1, s2, a <= b);
};
println!();
f("1.5.0", "1.5.0");
f("1.5.0-nightly", "1.5.0");
f("1.5.0", "1.5.0-nightly");
f("1.5.0-nightly", "1.5.0-nightly");
f("1.5.0", "1.6.0");
f("1.5.0-nightly", "1.6.0");
f("1.5.0", "1.6.0-nightly");
f("1.5.0-nightly", "1.6.0-nightly");
panic!();
}
*/