check upstream cache

Cargo.toml

@@ -6,5 +6,7 @@ edition = "2024"
 [dependencies]
 env_logger = "0.11.7"
 log = "0.4.27"
+reqwest = "0.12.15"
 serde = { version = "1.0.219", features = [ "derive" ]}
 serde_json = "1.0.140"
+tokio = { version = "1.44.1", features = [ "full" ]}

flake.lock

@@ -0,0 +1,61 @@
+{
+  "nodes": {
+    "flake-parts": {
+      "inputs": {
+        "nixpkgs-lib": "nixpkgs-lib"
+      },
+      "locked": {
+        "lastModified": 1741352980,
+        "narHash": "sha256-+u2UunDA4Cl5Fci3m7S643HzKmIDAe+fiXrLqYsR2fs=",
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "rev": "f4330d22f1c5d2ba72d3d22df5597d123fdb60a9",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1743315132,
+        "narHash": "sha256-6hl6L/tRnwubHcA4pfUUtk542wn2Om+D4UnDhlDW9BE=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "52faf482a3889b7619003c0daec593a1912fddc1",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs-lib": {
+      "locked": {
+        "lastModified": 1740877520,
+        "narHash": "sha256-oiwv/ZK/2FhGxrCkQkB83i7GnWXPPLzoqFHpDD3uYpk=",
+        "owner": "nix-community",
+        "repo": "nixpkgs.lib",
+        "rev": "147dee35aab2193b174e4c0868bd80ead5ce755c",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "nixpkgs.lib",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-parts": "flake-parts",
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,23 @@
+{
+  description = "Description for the project";
+
+  inputs = {
+    flake-parts.url = "github:hercules-ci/flake-parts";
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+  };
+
+  outputs = inputs@{ flake-parts, ... }:
+    flake-parts.lib.mkFlake { inherit inputs; } {
+      systems = [ "x86_64-linux" "aarch64-linux" "aarch64-darwin" "x86_64-darwin" ];
+      perSystem = { config, self', inputs', pkgs, system, ... }: {
+        devShells.default = pkgs.mkShell {
+          nativeBuildInputs = with pkgs; [
+            pkg-config
+          ];
+          buildInputs = with pkgs; [
+            openssl
+          ];
+        };
+      };
+    };
+}

src/main.rs

@@ -1,12 +1,10 @@
-#![feature(string_from_utf8_lossy_owned)]
-
 use std::{env, path::Path};
 use std::process::Command;
-use std::path::PathBuf;
 
 use serde::{Deserialize, Serialize};
 use serde_json;
 use log::debug;
+use tokio;
 
 const UPSTREAM_CACHES: &'static [&'static str] = &[
     "https://cache.nixos.org",
@@ -28,6 +26,21 @@ struct PathInfo {
 }
 
 impl PathInfo {
+    // find derivations related to package
+    fn from_package(package: &str) -> Vec<Self> {
+        let path_infos = Command::new("nix")
+            .arg("path-info")
+            .arg("--derivation")
+            .arg("--json")
+            .arg(package)
+            .output()
+            .expect("path-info failed");
+
+        let path_infos: Vec<PathInfo> = serde_json::from_slice(&path_infos.stdout).unwrap();
+        debug!("PathInfo's from nix path-info: {:#?}", path_infos);
+        path_infos
+    }
+
     // find store paths related to derivation
     fn get_store_paths(&self) -> Vec<String> {
         let mut store_paths: Vec<String> = Vec::new();
@@ -47,30 +60,24 @@ impl PathInfo {
     }
 }
 
-fn main() {
+#[tokio::main]
+async fn main() {
     env_logger::init();
     let args: Vec<String> = env::args().collect();
     let package = &args[1];
-    println!("package: {}", package);
+    debug!("package: {}", package);
-
+    let path_infos = PathInfo::from_package(package);
-    // find derivations related to package
-    let path_infos = Command::new("nix")
-        .arg("path-info")
-        .arg("--derivation")
-        .arg("--json")
-        .arg(package)
-        .output()
-        .expect("path-info failed");
-
-    let path_infos: Vec<PathInfo> = serde_json::from_slice(&path_infos.stdout).unwrap();
-    debug!("PathInfo's from nix path-info: {:#?}", path_infos);
-
 
     // filter out store paths that exist in upstream caches
     let store_paths = path_infos[0].get_store_paths();
     for store_path in store_paths {
         let basename = Path::new(&store_path).file_name().unwrap().to_str().unwrap().to_string();
         let hash = basename.split("-").nth(0).unwrap();
-        println!("hash: {}", hash);
+        for upstream in UPSTREAM_CACHES {
+            let mut uri = String::from(*upstream);
+            uri.push_str(format!("/{}.narinfo", hash).as_str());
+            let res_status = reqwest::Client::new().head(uri).send().await.unwrap().status();
+            println!("{} responded with {}", *upstream, res_status);
+        }
     }
 }