mirror of
https://github.com/nix-community/nurl.git
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initial implementation
This commit is contained in:
figsoda
parent
cfdf4e6a68
commit
eafb9ebb32
@ -1 +1,5 @@
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# Changelog
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## v0.1.0 - 2022-12-29
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First release
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470
Cargo.lock
generated
470
Cargo.lock
generated
@ -2,6 +2,476 @@
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|
||||
checksum = "70ec6ce85bb158151cae5e5c87f95a8e97d2c0c4b001223f33a334e3ce5de178"
|
||||
dependencies = [
|
||||
"winapi",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "winapi-x86_64-pc-windows-gnu"
|
||||
version = "0.4.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
|
||||
|
||||
[[package]]
|
||||
name = "windows-sys"
|
||||
version = "0.42.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "5a3e1820f08b8513f676f7ab6c1f99ff312fb97b553d30ff4dd86f9f15728aa7"
|
||||
dependencies = [
|
||||
"windows_aarch64_gnullvm",
|
||||
"windows_aarch64_msvc",
|
||||
"windows_i686_gnu",
|
||||
"windows_i686_msvc",
|
||||
"windows_x86_64_gnu",
|
||||
"windows_x86_64_gnullvm",
|
||||
"windows_x86_64_msvc",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "windows_aarch64_gnullvm"
|
||||
version = "0.42.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "41d2aa71f6f0cbe00ae5167d90ef3cfe66527d6f613ca78ac8024c3ccab9a19e"
|
||||
|
||||
[[package]]
|
||||
name = "windows_aarch64_msvc"
|
||||
version = "0.42.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "dd0f252f5a35cac83d6311b2e795981f5ee6e67eb1f9a7f64eb4500fbc4dcdb4"
|
||||
|
||||
[[package]]
|
||||
name = "windows_i686_gnu"
|
||||
version = "0.42.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "fbeae19f6716841636c28d695375df17562ca208b2b7d0dc47635a50ae6c5de7"
|
||||
|
||||
[[package]]
|
||||
name = "windows_i686_msvc"
|
||||
version = "0.42.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "84c12f65daa39dd2babe6e442988fc329d6243fdce47d7d2d155b8d874862246"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_gnu"
|
||||
version = "0.42.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "bf7b1b21b5362cbc318f686150e5bcea75ecedc74dd157d874d754a2ca44b0ed"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_gnullvm"
|
||||
version = "0.42.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "09d525d2ba30eeb3297665bd434a54297e4170c7f1a44cad4ef58095b4cd2028"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_msvc"
|
||||
version = "0.42.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "f40009d85759725a34da6d89a94e63d7bdc50a862acf0dbc7c8e488f1edcb6f5"
|
||||
|
||||
15
Cargo.toml
15
Cargo.toml
@ -3,15 +3,24 @@ name = "nurl"
|
||||
version = "0.1.0"
|
||||
authors = ["figsoda <figsoda@pm.me>"]
|
||||
edition = "2021"
|
||||
description = ""
|
||||
description = "Generate Nix fetcher calls from repository URLs"
|
||||
readme = "README.md"
|
||||
homepage = "https://github.com/nix-community/nurl"
|
||||
repository = "https://github.com/nix-community/nurl"
|
||||
license = "MPL-2.0"
|
||||
keywords = []
|
||||
categories = []
|
||||
keywords = ["cli", "fetch", "git", "nix", "prefetch"]
|
||||
categories = ["command-line-utilities"]
|
||||
|
||||
[dependencies]
|
||||
anyhow = "1.0.68"
|
||||
indoc = "1.0.8"
|
||||
serde = { version = "1.0.152", features = ["derive"] }
|
||||
serde_json = "1.0.91"
|
||||
url = "2.3.1"
|
||||
|
||||
[dependencies.clap]
|
||||
version = "4.0.32"
|
||||
features = ["cargo", "derive", "unicode", "wrap_help"]
|
||||
|
||||
[profile.release]
|
||||
lto = true
|
||||
|
||||
19
README.md
19
README.md
@ -6,6 +6,8 @@
|
||||
[](https://www.mozilla.org/en-US/MPL/2.0)
|
||||
[](https://github.com/nix-community/nurl/actions?query=workflow:ci)
|
||||
|
||||
Generate Nix fetcher calls from repository URLs
|
||||
|
||||
|
||||
## Installation
|
||||
|
||||
@ -27,6 +29,23 @@ cargo build --release
|
||||
|
||||
## Usage
|
||||
|
||||
```
|
||||
Generate Nix fetcher calls from repository URLs
|
||||
https://github.com/nix-community/nurl
|
||||
|
||||
Usage: nurl [OPTIONS] <URL> <REV>
|
||||
|
||||
Arguments:
|
||||
<URL> URL to the repository to be fetched
|
||||
<REV> the revision or reference to be fetched
|
||||
|
||||
Options:
|
||||
-f, --fetcher <FETCHER> specify the fetcher function instead of inferring from the URL [possible values: fetchFromGitHub, fetchFromGitLab, fetchFromSourcehut, fetchgit, fetchhg]
|
||||
-i, --indent <INDENT> extra indentation (in number of spaces) [default: 0]
|
||||
-h, --help Print help information
|
||||
-V, --version Print version information
|
||||
```
|
||||
|
||||
|
||||
## Changelog
|
||||
See [CHANGELOG.md](CHANGELOG.md)
|
||||
|
||||
32
src/cli.rs
Normal file
32
src/cli.rs
Normal file
@ -0,0 +1,32 @@
|
||||
use clap::{Parser, ValueEnum};
|
||||
use url::Url;
|
||||
|
||||
/// Generate Nix fetcher calls from repository URLs
|
||||
/// https://github.com/nix-community/nurl
|
||||
#[derive(Parser)]
|
||||
#[command(version, verbatim_doc_comment)]
|
||||
pub struct Opts {
|
||||
/// URL to the repository to be fetched
|
||||
pub url: Url,
|
||||
|
||||
/// the revision or reference to be fetched
|
||||
pub rev: String,
|
||||
|
||||
/// specify the fetcher function instead of inferring from the URL
|
||||
#[arg(short, long)]
|
||||
pub fetcher: Option<Fetcher>,
|
||||
|
||||
/// extra indentation (in number of spaces)
|
||||
#[arg(short, long, default_value_t = 0)]
|
||||
pub indent: usize,
|
||||
}
|
||||
|
||||
#[derive(Clone, ValueEnum)]
|
||||
#[clap(rename_all = "camelCase")]
|
||||
pub enum Fetcher {
|
||||
FetchFromGitHub,
|
||||
FetchFromGitLab,
|
||||
FetchFromSourcehut,
|
||||
Fetchgit,
|
||||
Fetchhg,
|
||||
}
|
||||
8
src/fetcher/git.rs
Normal file
8
src/fetcher/git.rs
Normal file
@ -0,0 +1,8 @@
|
||||
use crate::fetcher::UrlFlakeFetcher;
|
||||
|
||||
pub struct Fetchgit;
|
||||
|
||||
impl UrlFlakeFetcher for Fetchgit {
|
||||
const NAME: &'static str = "fetchgit";
|
||||
const FLAKE_TYPE: &'static str = "git";
|
||||
}
|
||||
12
src/fetcher/github.rs
Normal file
12
src/fetcher/github.rs
Normal file
@ -0,0 +1,12 @@
|
||||
use crate::fetcher::SimpleFlakeFetcher;
|
||||
|
||||
pub struct FetchFromGitHub<'a>(pub Option<&'a str>);
|
||||
|
||||
impl<'a> SimpleFlakeFetcher<'a> for FetchFromGitHub<'a> {
|
||||
const FLAKE_TYPE: &'static str = "github";
|
||||
const NAME: &'static str = "fetchFromGitHub";
|
||||
|
||||
fn host(&self) -> Option<&'a str> {
|
||||
self.0
|
||||
}
|
||||
}
|
||||
12
src/fetcher/gitlab.rs
Normal file
12
src/fetcher/gitlab.rs
Normal file
@ -0,0 +1,12 @@
|
||||
use crate::fetcher::SimpleFlakeFetcher;
|
||||
|
||||
pub struct FetchFromGitLab<'a>(pub Option<&'a str>);
|
||||
|
||||
impl<'a> SimpleFlakeFetcher<'a> for FetchFromGitLab<'a> {
|
||||
const FLAKE_TYPE: &'static str = "gitlab";
|
||||
const NAME: &'static str = "fetchFromGitLab";
|
||||
|
||||
fn host(&self) -> Option<&'a str> {
|
||||
self.0
|
||||
}
|
||||
}
|
||||
8
src/fetcher/hg.rs
Normal file
8
src/fetcher/hg.rs
Normal file
@ -0,0 +1,8 @@
|
||||
use crate::fetcher::UrlFlakeFetcher;
|
||||
|
||||
pub struct Fetchhg;
|
||||
|
||||
impl UrlFlakeFetcher for Fetchhg {
|
||||
const FLAKE_TYPE: &'static str = "hg";
|
||||
const NAME: &'static str = "fetchhg";
|
||||
}
|
||||
130
src/fetcher/mod.rs
Normal file
130
src/fetcher/mod.rs
Normal file
@ -0,0 +1,130 @@
|
||||
mod git;
|
||||
mod github;
|
||||
mod gitlab;
|
||||
mod hg;
|
||||
mod sourcehut;
|
||||
|
||||
pub use git::Fetchgit;
|
||||
pub use github::FetchFromGitHub;
|
||||
pub use gitlab::FetchFromGitLab;
|
||||
pub use hg::Fetchhg;
|
||||
use indoc::writedoc;
|
||||
pub use sourcehut::FetchFromSourcehut;
|
||||
|
||||
use anyhow::{bail, Context, Result};
|
||||
use serde::Deserialize;
|
||||
use url::Url;
|
||||
|
||||
use std::{
|
||||
io::Write,
|
||||
process::{Command, Output, Stdio},
|
||||
};
|
||||
|
||||
pub trait Fetcher {
|
||||
fn fetch_nix(&self, out: &mut impl Write, url: &Url, rev: String, indent: &str) -> Result<()>;
|
||||
}
|
||||
|
||||
trait GetStdout {
|
||||
fn get_stdout(&mut self) -> Result<Vec<u8>>;
|
||||
}
|
||||
|
||||
impl GetStdout for Command {
|
||||
fn get_stdout(&mut self) -> Result<Vec<u8>> {
|
||||
let Output { stdout, status, .. } = self.stderr(Stdio::inherit()).output()?;
|
||||
if !status.success() {
|
||||
bail!("command exited with exit code {}", status);
|
||||
}
|
||||
Ok(stdout)
|
||||
}
|
||||
}
|
||||
|
||||
pub fn flake_prefetch(flake_ref: String) -> Result<String> {
|
||||
#[derive(Deserialize)]
|
||||
struct PrefetchOutput {
|
||||
hash: String,
|
||||
}
|
||||
|
||||
eprintln!("$ nix flake prefetch --json {flake_ref}");
|
||||
Ok(serde_json::from_slice::<PrefetchOutput>(
|
||||
&Command::new("nix")
|
||||
.arg("flake")
|
||||
.arg("prefetch")
|
||||
.arg("--json")
|
||||
.arg(flake_ref)
|
||||
.get_stdout()?,
|
||||
)?
|
||||
.hash)
|
||||
}
|
||||
|
||||
pub trait SimpleFlakeFetcher<'a> {
|
||||
const NAME: &'static str;
|
||||
const FLAKE_TYPE: &'static str;
|
||||
|
||||
fn host(&self) -> Option<&'a str>;
|
||||
|
||||
fn get_repo(&self, url: &Url) -> Option<(String, String)> {
|
||||
let mut xs = url.path_segments()?;
|
||||
let owner = xs.next()?;
|
||||
let repo = xs.next()?;
|
||||
Some((
|
||||
owner.into(),
|
||||
repo.strip_suffix(".git").unwrap_or(repo).into(),
|
||||
))
|
||||
}
|
||||
|
||||
fn fetch_nix(&self, out: &mut impl Write, url: &Url, rev: String, indent: &str) -> Result<()> {
|
||||
let (owner, repo) = self
|
||||
.get_repo(url)
|
||||
.with_context(|| format!("failed to parse {url} as a {} url", Self::FLAKE_TYPE))?;
|
||||
|
||||
let hash = flake_prefetch(if let Some(host) = self.host() {
|
||||
format!("{}:{owner}/{repo}/{rev}?host={}", Self::FLAKE_TYPE, host)
|
||||
} else {
|
||||
format!("{}:{owner}/{repo}/{rev}", Self::FLAKE_TYPE)
|
||||
})?;
|
||||
|
||||
writeln!(out, "{} {{", Self::NAME)?;
|
||||
|
||||
if let Some(domain) = self.host() {
|
||||
writeln!(out, r#"{indent} domain = "{domain}";"#)?;
|
||||
}
|
||||
|
||||
writedoc!(
|
||||
out,
|
||||
r#"
|
||||
{indent} owner = "{owner}";
|
||||
{indent} repo = "{repo}";
|
||||
{indent} rev = "{rev}";
|
||||
{indent} hash = "{hash}";
|
||||
{indent}}}"#,
|
||||
)?;
|
||||
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
||||
pub(crate) trait UrlFlakeFetcher {
|
||||
const NAME: &'static str;
|
||||
const FLAKE_TYPE: &'static str;
|
||||
|
||||
fn fetch_nix(&self, out: &mut impl Write, url: &Url, rev: String, indent: &str) -> Result<()> {
|
||||
let hash = flake_prefetch(format!(
|
||||
"{}+{url}?{}={rev}",
|
||||
Self::FLAKE_TYPE,
|
||||
if rev.len() == 40 { "rev" } else { "ref" },
|
||||
))?;
|
||||
|
||||
writedoc!(
|
||||
out,
|
||||
r#"
|
||||
{} {{
|
||||
{indent} url = "{url}";
|
||||
{indent} rev = "{rev}";
|
||||
{indent} hash = "{hash}";
|
||||
{indent}}}"#,
|
||||
Self::NAME,
|
||||
)?;
|
||||
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
12
src/fetcher/sourcehut.rs
Normal file
12
src/fetcher/sourcehut.rs
Normal file
@ -0,0 +1,12 @@
|
||||
use crate::fetcher::SimpleFlakeFetcher;
|
||||
|
||||
pub struct FetchFromSourcehut<'a>(pub Option<&'a str>);
|
||||
|
||||
impl<'a> SimpleFlakeFetcher<'a> for FetchFromSourcehut<'a> {
|
||||
const FLAKE_TYPE: &'static str = "sourcehut";
|
||||
const NAME: &'static str = "fetchFromSourcehut";
|
||||
|
||||
fn host(&self) -> Option<&'a str> {
|
||||
self.0
|
||||
}
|
||||
}
|
||||
68
src/main.rs
68
src/main.rs
@ -1 +1,67 @@
|
||||
fn main() {}
|
||||
mod cli;
|
||||
mod fetcher;
|
||||
|
||||
use anyhow::{bail, Result};
|
||||
use clap::Parser;
|
||||
use url::Host;
|
||||
|
||||
use crate::{
|
||||
cli::{Fetcher, Opts},
|
||||
fetcher::{
|
||||
FetchFromGitHub, FetchFromGitLab, FetchFromSourcehut, Fetchgit, Fetchhg,
|
||||
SimpleFlakeFetcher, UrlFlakeFetcher,
|
||||
},
|
||||
};
|
||||
|
||||
use std::io::stdout;
|
||||
|
||||
fn main() -> Result<()> {
|
||||
let opts = Opts::parse();
|
||||
|
||||
let out = &mut stdout().lock();
|
||||
let indent = &" ".repeat(opts.indent);
|
||||
|
||||
match (opts.fetcher, opts.url.host()) {
|
||||
(Some(Fetcher::FetchFromGitHub), Some(host)) => {
|
||||
FetchFromGitHub((host != Host::Domain("github.com")).then_some(&host.to_string()))
|
||||
.fetch_nix(out, &opts.url, opts.rev, indent)?;
|
||||
}
|
||||
(None, Some(Host::Domain("github.com"))) => {
|
||||
FetchFromGitHub(None).fetch_nix(out, &opts.url, opts.rev, indent)?;
|
||||
}
|
||||
|
||||
(Some(Fetcher::FetchFromGitLab), Some(host)) => {
|
||||
FetchFromGitLab((host != Host::Domain("github.com")).then_some(&host.to_string()))
|
||||
.fetch_nix(out, &opts.url, opts.rev, indent)?;
|
||||
}
|
||||
(None, Some(Host::Domain(host))) if host.starts_with("gitlab.") => {
|
||||
FetchFromGitLab((host != "gitlab.com").then_some(host))
|
||||
.fetch_nix(out, &opts.url, opts.rev, indent)?;
|
||||
}
|
||||
|
||||
(Some(Fetcher::FetchFromSourcehut), Some(host)) => {
|
||||
FetchFromSourcehut((host != Host::Domain("git.sr.ht")).then_some(&host.to_string()))
|
||||
.fetch_nix(out, &opts.url, opts.rev, indent)?;
|
||||
}
|
||||
(None, Some(Host::Domain("git.sr.ht"))) => {
|
||||
FetchFromSourcehut(None).fetch_nix(out, &opts.url, opts.rev, indent)?;
|
||||
}
|
||||
|
||||
(
|
||||
Some(Fetcher::FetchFromGitHub | Fetcher::FetchFromGitLab | Fetcher::FetchFromSourcehut),
|
||||
None,
|
||||
) => {
|
||||
bail!("bad");
|
||||
}
|
||||
|
||||
(Some(Fetcher::Fetchgit), _) | (None, _) => {
|
||||
Fetchgit.fetch_nix(out, &opts.url, opts.rev, indent)?;
|
||||
}
|
||||
|
||||
(Some(Fetcher::Fetchhg), _) => {
|
||||
Fetchhg.fetch_nix(out, &opts.url, opts.rev, indent)?;
|
||||
}
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user