commit 71302829763a4e27274cad2292783213917a6f13 · pyrox.dev/nixpkgs

maintainers/scripts/convert-to-import-cargo-lock.sh

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       #!/usr/bin/env nix-shell

     

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       #!nix-shell -I nixpkgs=. -i bash -p "import ./maintainers/scripts/convert-to-import-cargo-lock" nix-prefetch-git

     

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       convert-to-import-cargo-lock "$@"

maintainers/scripts/convert-to-import-cargo-lock/.gitignore

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       /target

+106

maintainers/scripts/convert-to-import-cargo-lock/Cargo.lock

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       # This file is automatically @generated by Cargo.

     

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       # It is not intended for manual editing.

     

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       version = 3

     

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       [[package]]

     

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       name = "anyhow"

     

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       version = "1.0.69"

     

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       source = "registry+https://github.com/rust-lang/crates.io-index"

     

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       checksum = "224afbd727c3d6e4b90103ece64b8d1b67fbb1973b1046c2281eed3f3803f800"

     

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       [[package]]

     

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       name = "basic-toml"

     

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       version = "0.1.1"

     

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       source = "registry+https://github.com/rust-lang/crates.io-index"

     

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       checksum = "2e819b667739967cd44d308b8c7b71305d8bb0729ac44a248aa08f33d01950b4"

     

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       dependencies = [

     

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        "serde",

     

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       ]

     

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       [[package]]

     

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       name = "convert-to-import-cargo-lock"

     

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       version = "0.1.0"

     

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       dependencies = [

     

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        "anyhow",

     

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        "basic-toml",

     

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        "serde",

     

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        "serde_json",

     

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       ]

     

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       [[package]]

     

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       name = "itoa"

     

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       version = "1.0.5"

     

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       source = "registry+https://github.com/rust-lang/crates.io-index"

     

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       checksum = "fad582f4b9e86b6caa621cabeb0963332d92eea04729ab12892c2533951e6440"

     

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       [[package]]

     

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       name = "proc-macro2"

     

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       version = "1.0.51"

     

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       source = "registry+https://github.com/rust-lang/crates.io-index"

     

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       checksum = "5d727cae5b39d21da60fa540906919ad737832fe0b1c165da3a34d6548c849d6"

     

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       dependencies = [

     

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        "unicode-ident",

     

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       ]

     

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       [[package]]

     

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       name = "quote"

     

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       version = "1.0.23"

     

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       source = "registry+https://github.com/rust-lang/crates.io-index"

     

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       checksum = "8856d8364d252a14d474036ea1358d63c9e6965c8e5c1885c18f73d70bff9c7b"

     

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       dependencies = [

     

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        "proc-macro2",

     

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       ]

     

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       [[package]]

     

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       name = "ryu"

     

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       version = "1.0.12"

     

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       source = "registry+https://github.com/rust-lang/crates.io-index"

     

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       checksum = "7b4b9743ed687d4b4bcedf9ff5eaa7398495ae14e61cba0a295704edbc7decde"

     

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       [[package]]

     

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       name = "serde"

     

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       version = "1.0.152"

     

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       source = "registry+https://github.com/rust-lang/crates.io-index"

     

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       checksum = "bb7d1f0d3021d347a83e556fc4683dea2ea09d87bccdf88ff5c12545d89d5efb"

     

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       dependencies = [

     

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        "serde_derive",

     

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       ]

     

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       [[package]]

     

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       name = "serde_derive"

     

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       version = "1.0.152"

     

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       source = "registry+https://github.com/rust-lang/crates.io-index"

     

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       checksum = "af487d118eecd09402d70a5d72551860e788df87b464af30e5ea6a38c75c541e"

     

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       dependencies = [

     

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        "proc-macro2",

     

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        "quote",

     

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        "syn",

     

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       ]

     

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       [[package]]

     

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       name = "serde_json"

     

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       version = "1.0.93"

     

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       source = "registry+https://github.com/rust-lang/crates.io-index"

     

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       checksum = "cad406b69c91885b5107daf2c29572f6c8cdb3c66826821e286c533490c0bc76"

     

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       dependencies = [

     

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        "itoa",

     

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        "ryu",

     

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        "serde",

     

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       ]

     

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       [[package]]

     

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       name = "syn"

     

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       version = "1.0.107"

     

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       source = "registry+https://github.com/rust-lang/crates.io-index"

     

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       checksum = "1f4064b5b16e03ae50984a5a8ed5d4f8803e6bc1fd170a3cda91a1be4b18e3f5"

     

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       dependencies = [

     

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        "proc-macro2",

     

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        "quote",

     

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        "unicode-ident",

     

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       ]

     

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       [[package]]

     

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       name = "unicode-ident"

     

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       version = "1.0.6"

     

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       source = "registry+https://github.com/rust-lang/crates.io-index"

     

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       checksum = "84a22b9f218b40614adcb3f4ff08b703773ad44fa9423e4e0d346d5db86e4ebc"

+12

maintainers/scripts/convert-to-import-cargo-lock/Cargo.toml

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       [package]

     

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       name = "convert-to-import-cargo-lock"

     

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       version = "0.1.0"

     

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       edition = "2021"

     

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       # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

     

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       [dependencies]

     

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       anyhow = { version = "1.0.69" }

     

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       basic-toml = "0.1.1"

     

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       serde = { version = "1.0.152", features = ["derive"] }

     

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       serde_json = "1.0.93"

+16

maintainers/scripts/convert-to-import-cargo-lock/default.nix

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       with import ../../../. { };

     

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       rustPlatform.buildRustPackage {

     

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         name = "convert-to-import-cargo-lock";

     

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         src = lib.cleanSourceWith {

     

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           src = ./.;

     

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           filter = name: type:

     

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             let

     

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               name' = builtins.baseNameOf name;

     

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             in

     

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             name' != "default.nix" && name' != "target";

     

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         };

     

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         cargoLock.lockFile = ./Cargo.lock;

     

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       }

maintainers/scripts/convert-to-import-cargo-lock/shell.nix

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       with import ../../../. { };

     

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       mkShell {

     

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         packages = [ rustc cargo clippy rustfmt ] ++ lib.optional stdenv.isDarwin libiconv;

     

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       }

+246

maintainers/scripts/convert-to-import-cargo-lock/src/main.rs

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       #![warn(clippy::pedantic)]

     

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       #![allow(clippy::too_many_lines)]

     

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       use anyhow::anyhow;

     

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       use serde::Deserialize;

     

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       use std::{collections::HashMap, env, fs, path::PathBuf, process::Command};

     

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       #[derive(Deserialize)]

     

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       struct CargoLock<'a> {

     

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           #[serde(rename = "package", borrow)]

     

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           packages: Vec<Package<'a>>,

     

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           metadata: Option<HashMap<&'a str, &'a str>>,

     

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       }

     

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       #[derive(Deserialize)]

     

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       struct Package<'a> {

     

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           name: &'a str,

     

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           version: &'a str,

     

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           source: Option<&'a str>,

     

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           checksum: Option<&'a str>,

     

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       }

     

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       #[derive(Deserialize)]

     

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       struct PrefetchOutput {

     

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           sha256: String,

     

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       }

     

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       fn main() -> anyhow::Result<()> {

     

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           let mut hashes = HashMap::new();

     

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           let attr_count = env::args().len() - 1;

     

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           for (i, attr) in env::args().skip(1).enumerate() {

     

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               println!("converting {attr} ({}/{attr_count})", i + 1);

     

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               convert(&attr, &mut hashes)?;

     

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           }

     

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           Ok(())

     

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       }

     

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       fn convert(attr: &str, hashes: &mut HashMap<String, String>) -> anyhow::Result<()> {

     

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           let package_path = nix_eval(format!("{attr}.meta.position"))?

     

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               .and_then(|p| p.split_once(':').map(|(f, _)| PathBuf::from(f)));

     

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           if package_path.is_none() {

     

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               eprintln!("can't automatically convert {attr}: doesn't exist");

     

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               return Ok(());

     

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           }

     

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           let package_path = package_path.unwrap();

     

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           if package_path.with_file_name("Cargo.lock").exists() {

     

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               eprintln!("skipping {attr}: already has a vendored Cargo.lock");

     

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               return Ok(());

     

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           }

     

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           let mut src = PathBuf::from(

     

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               String::from_utf8(

     

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                   Command::new("nix-build")

     

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                       .arg("-A")

     

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                       .arg(format!("{attr}.src"))

     

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                       .output()?

     

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                       .stdout,

     

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               )?

     

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               .trim(),

     

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           );

     

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           if !src.exists() {

     

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               eprintln!("can't automatically convert {attr}: src doesn't exist (bad attr?)");

     

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               return Ok(());

     

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           } else if !src.metadata()?.is_dir() {

     

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               eprintln!("can't automatically convert {attr}: src isn't a directory");

     

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               return Ok(());

     

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           }

     

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           if let Some(mut source_root) = nix_eval(format!("{attr}.sourceRoot"))?.map(PathBuf::from) {

     

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               source_root = source_root.components().skip(1).collect();

     

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               src.push(source_root);

     

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           }

     

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           let cargo_lock_path = src.join("Cargo.lock");

     

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           if !cargo_lock_path.exists() {

     

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               eprintln!("can't automatically convert {attr}: src doesn't contain Cargo.lock");

     

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               return Ok(());

     

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           }

     

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           let cargo_lock_content = fs::read_to_string(cargo_lock_path)?;

     

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           let cargo_lock: CargoLock = basic_toml::from_str(&cargo_lock_content)?;

     

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           let mut git_dependencies = Vec::new();

     

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           for package in cargo_lock.packages.iter().filter(|p| {

     

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               p.source.is_some()

     

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                   && p.checksum

     

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                       .or_else(|| {

     

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                           cargo_lock

     

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                               .metadata

     

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                               .as_ref()?

     

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                               .get(

     

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                                   format!("checksum {} {} ({})", p.name, p.version, p.source.unwrap())

     

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                                       .as_str(),

     

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                               )

     

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                               .copied()

     

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                       })

     

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                       .is_none()

     

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           }) {

     

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               let (typ, original_url) = package

     

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                   .source

     

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                   .unwrap()

     

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                   .split_once('+')

     

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                   .expect("dependency should have well-formed source url");

     

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       +
       

     

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               if let Some(hash) = hashes.get(original_url) {

     

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                   git_dependencies.push((

     

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                       format!("{}-{}", package.name, package.version),

     

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       +
                       hash.clone(),

     

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       +
                   ));

     

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       +
       

     

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                   continue;

     

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               }

     

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       +
       

     

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               assert_eq!(

     

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       +
                   typ, "git",

     

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       +
                   "packages without checksums should be git dependencies"

     

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       +
               );

     

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       +
       

     

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               let (mut url, rev) = original_url

     

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       +
                   .split_once('#')

     

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       +
                   .expect("git dependency should have commit");

     

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       +
       

     

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       +
               // TODO: improve

     

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       +
               if let Some((u, _)) = url.split_once('?') {

     

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       +
                   url = u;

     

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       +
               }

     

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       +
       

     

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       +
               let prefetch_output: PrefetchOutput = serde_json::from_slice(

     

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       +
                   &Command::new("nix-prefetch-git")

     

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       +
                       .args(["--url", url, "--rev", rev, "--quiet"])

     

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       +
                       .output()?

     

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       +
                       .stdout,

     

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       +
               )?;

     

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       +
       

     

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       +
               let output_hash = String::from_utf8(

     

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       +
                   Command::new("nix")

     

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       +
                       .args([

     

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       +
                           "--extra-experimental-features",

     

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       +
                           "nix-command",

     

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       +
                           "hash",

     

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       +
                           "to-sri",

     

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       +
                           "--type",

     

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       +
                           "sha256",

     

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       +
                           &prefetch_output.sha256,

     

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       +
                       ])

     

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       +
                       .output()?

     

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       +
                       .stdout,

     

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       +
               )?;

     

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       +
       

     

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       +
               let hash = output_hash.trim().to_string();

     

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       +
       

     

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       +
               git_dependencies.push((

     

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       +
                   format!("{}-{}", package.name, package.version),

     

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       +
                   output_hash.trim().to_string().clone(),

     

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       +
               ));

     

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       +
       

     

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       +
               hashes.insert(original_url.to_string(), hash);

     

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       +
           }

     

       170
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       +
       

     

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       +
           fs::write(

     

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       +
               package_path.with_file_name("Cargo.lock"),

     

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               cargo_lock_content,

     

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       174
       +
           )?;

     

       175
       175
       +
       

     

       176
       176
       +
           let mut package_lines: Vec<_> = fs::read_to_string(&package_path)?

     

       177
       177
       +
               .lines()

     

       178
       178
       +
               .map(String::from)

     

       179
       179
       +
               .collect();

     

       180
       180
       +
       

     

       181
       181
       +
           let (cargo_deps_line_index, cargo_deps_line) = package_lines

     

       182
       182
       +
               .iter_mut()

     

       183
       183
       +
               .enumerate()

     

       184
       184
       +
               .find(|(_, l)| {

     

       185
       185
       +
                   l.trim_start().starts_with("cargoHash") || l.trim_start().starts_with("cargoSha256")

     

       186
       186
       +
               })

     

       187
       187
       +
               .expect("package should contain cargoHash/cargoSha256");

     

       188
       188
       +
       

     

       189
       189
       +
           let spaces = " ".repeat(cargo_deps_line.len() - cargo_deps_line.trim_start().len());

     

       190
       190
       +
       

     

       191
       191
       +
           if git_dependencies.is_empty() {

     

       192
       192
       +
               *cargo_deps_line = format!("{spaces}cargoLock.lockFile = ./Cargo.lock;");

     

       193
       193
       +
           } else {

     

       194
       194
       +
               *cargo_deps_line = format!("{spaces}cargoLock = {{");

     

       195
       195
       +
       

     

       196
       196
       +
               let mut index_iter = cargo_deps_line_index + 1..;

     

       197
       197
       +
       

     

       198
       198
       +
               package_lines.insert(

     

       199
       199
       +
                   index_iter.next().unwrap(),

     

       200
       200
       +
                   format!("{spaces}  lockFile = ./Cargo.lock;"),

     

       201
       201
       +
               );

     

       202
       202
       +
       

     

       203
       203
       +
               package_lines.insert(

     

       204
       204
       +
                   index_iter.next().unwrap(),

     

       205
       205
       +
                   format!("{spaces}  outputHashes = {{"),

     

       206
       206
       +
               );

     

       207
       207
       +
       

     

       208
       208
       +
               for ((dep, hash), index) in git_dependencies.drain(..).zip(&mut index_iter) {

     

       209
       209
       +
                   package_lines.insert(index, format!("{spaces}    {dep:?} = {hash:?};"));

     

       210
       210
       +
               }

     

       211
       211
       +
       

     

       212
       212
       +
               package_lines.insert(index_iter.next().unwrap(), format!("{spaces}  }};"));

     

       213
       213
       +
               package_lines.insert(index_iter.next().unwrap(), format!("{spaces}}};"));

     

       214
       214
       +
           }

     

       215
       215
       +
       

     

       216
       216
       +
           if package_lines.last().map(String::as_str) != Some("") {

     

       217
       217
       +
               package_lines.push(String::new());

     

       218
       218
       +
           }

     

       219
       219
       +
       

     

       220
       220
       +
           fs::write(package_path, package_lines.join("\n"))?;

     

       221
       221
       +
       

     

       222
       222
       +
           Ok(())

     

       223
       223
       +
       }

     

       224
       224
       +
       

     

       225
       225
       +
       fn nix_eval(attr: impl AsRef<str>) -> anyhow::Result<Option<String>> {

     

       226
       226
       +
           let output = String::from_utf8(

     

       227
       227
       +
               Command::new("nix-instantiate")

     

       228
       228
       +
                   .args(["--eval", "-A", attr.as_ref()])

     

       229
       229
       +
                   .output()?

     

       230
       230
       +
                   .stdout,

     

       231
       231
       +
           )?;

     

       232
       232
       +
       

     

       233
       233
       +
           let trimmed = output.trim();

     

       234
       234
       +
       

     

       235
       235
       +
           if trimmed.is_empty() || trimmed == "null" {

     

       236
       236
       +
               Ok(None)

     

       237
       237
       +
           } else {

     

       238
       238
       +
               Ok(Some(

     

       239
       239
       +
                   trimmed

     

       240
       240
       +
                       .strip_prefix('"')

     

       241
       241
       +
                       .and_then(|p| p.strip_suffix('"'))

     

       242
       242
       +
                       .ok_or_else(|| anyhow!("couldn't parse nix-instantiate output: {output:?}"))?

     

       243
       243
       +
                       .to_string(),

     

       244
       244
       +
               ))

     

       245
       245
       +
           }

     

       246
       246
       +
       }