From 024a41484af2e15c9295f4ab7b4a0662cbaa9fca Mon Sep 17 00:00:00 2001 From: Alyssa Ross Date: Tue, 13 Apr 2021 14:46:39 +0000 Subject: Initial commit --- .gitignore | 1 + COPYING | 674 +++++++++++++++++++++++++++++++++ Cargo.lock | 1198 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Cargo.toml | 11 + src/main.rs | 89 +++++ 5 files changed, 1973 insertions(+) create mode 100644 .gitignore create mode 100644 COPYING create mode 100644 Cargo.lock create mode 100644 Cargo.toml create mode 100644 src/main.rs diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..ea8c4bf --- /dev/null +++ b/.gitignore @@ -0,0 +1 @@ +/target diff --git a/COPYING b/COPYING new file mode 100644 index 0000000..f288702 --- /dev/null +++ b/COPYING @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. 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serde::{Deserialize, Serialize}; +use serde_json; +use toml::value::Table as TomlTable; + +#[derive(Debug, Serialize)] +struct Output { + git: BTreeSet, +} + +#[derive(Debug, Serialize, Deserialize, Ord, PartialOrd, Eq, PartialEq)] +struct PrefetchGit { + url: String, + rev: String, + sha256: String, + #[serde(rename = "fetchSubmodules")] + fetch_submodules: bool, + #[serde(rename = "deepClone")] + deep_clone: bool, + #[serde(rename = "leaveDotGit")] + leave_dot_git: bool, +} + +fn main() { + let lockfile_path = args_os().skip(1).next().expect("missing lockfile path"); + + let mut lockfile_bytes = vec![]; + let mut lockfile_fd = File::open(lockfile_path).expect("lockfile does not exist"); + lockfile_fd + .read_to_end(&mut lockfile_bytes) + .expect("failed to read lockfile"); + + let lockfile: TomlTable = toml::from_slice(&lockfile_bytes).expect("can't parse lockfile"); + let packages = lockfile + .get("package") + .expect("missing 'package' key") + .as_array() + .expect("package is not array"); + + let sources: BTreeSet<_> = packages + .into_iter() + .flat_map(|package| package.get("source")) + .map(|source| { + SourceId::from_url(source.as_str().expect("source not string")) + .expect("source not string") + }) + .filter(|source| source.is_git()) + .collect(); + + let output: BTreeSet = sources + .into_iter() + .map(|source| { + let output = Command::new("nix-prefetch-git") + .arg("--fetch-submodules") + .arg(source.url().as_str()) + .arg(source.precise().expect("missing precise in source URL")) + .stderr(Stdio::inherit()) + .output() + .expect("failed to spawn nix-prefetch-git"); + if !output.status.success() { + if let Some(code) = output.status.code() { + panic!("nix-prefetch-git exited with status {}", code); + } else { + panic!( + "nix-prefetch-git exited with signal {}", + output.status.signal().unwrap() + ); + } + } + + // FIXME: no need to read stdout into a buffer. + + serde_json::from_slice(&output.stdout).expect("failed to parse nix-prefetch-git output") + }) + .collect(); + + println!( + "{}", + toml::ser::to_string_pretty(&Output { git: output }) + .expect("failed to serialize nix-prefetch-git output as TOML") + ); +} -- cgit 1.4.1