feat: cargo dependencies

Cargo.toml

@@ -5,3 +5,9 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
+cargo_toml = "0.20.4"
+color-eyre = "0.6.3"
+forgejo-api = "0.4.1"
+futures = "0.3.30"
+tokio = { version = "1.40.0", features = ["full"] }
+url = "2.5.2"

readme.md

@@ -5,4 +5,11 @@
 
 *Todo: Write readme.*
 
+## Environment Variables
+
+- `FORGEJO_TOKEN` - A forgejo repository token that requires the `read:organization` and `read:repository` permissions.
+- `FORGEJO_URL` (optional, default: `https://git.newty.dev/`) - The URL of the forgejo instance
+- `SSH_PATH` (optional, default: `~/.ssh/id_rsa`) -
+- `SSH_PASSPHRASE` (optional, default: N/A) -
+
 <sub>This project is licensed with the Opinionated Queer License v1.2 - you can view it <a href="https://git.newty.dev/amethyst/drinkable-xp/src/branch/main/license.md">here</a>.</sub>

src/main.rs

@@ -1,3 +1,66 @@
-fn main() {
-    println!("Hello, world!");
+use cargo_toml::{Dependency, Manifest};
+use color_eyre::{eyre::eyre, Result};
+use forgejo_api::{
+    structs::{OrgListReposQuery, RepoGetRawFileQuery},
+    Forgejo,
+};
+use futures::future::join_all;
+use std::env;
+use url::Url;
+
+#[tokio::main]
+async fn main() -> Result<()> {
+    color_eyre::install()?;
+
+    // authenticate with forgejo
+    let forgejo = {
+        let token = env::var("FORGEJO_TOKEN")
+            .map_err(|_| eyre!("Expected Forgejo PAT in environment variable FORGEJO_TOKEN."))?;
+        let url: Url = env::var("FORGEJO_URL")
+            .unwrap_or("https://git.newty.dev/".to_string())
+            .parse()?;
+        Forgejo::new(forgejo_api::Auth::Token(&token), url)?
+    };
+
+    // find repositories
+    let repo_names = forgejo
+        .org_list_repos("amethyst", OrgListReposQuery::default())
+        .await?
+        .iter()
+        .map(|repo| repo.name.clone())
+        .collect::<Option<Vec<_>>>()
+        .expect("All repos should have a name");
+
+    // find all cargo dependencies
+    let crates: Vec<_> = join_all(repo_names.iter().map(|name| {
+        forgejo.repo_get_raw_file(
+            "amethyst",
+            &name,
+            "Cargo.toml",
+            RepoGetRawFileQuery::default(),
+        )
+    }))
+    .await
+    .iter()
+    .filter_map(|file| file.as_ref().ok())
+    .map(|file| Manifest::from_slice(file))
+    .filter_map(|manifest| manifest.ok())
+    .map(|manifest| manifest.dependencies)
+    .flatten()
+    .map(|(name, metadata)| {
+        (
+            name,
+            match metadata {
+                Dependency::Simple(version) => Some(version),
+                Dependency::Detailed(details) => details.version,
+                _ => None,
+            },
+        )
+    })
+    .filter_map(|(name, version)| version.map(|version| (name, version)))
+    .collect();
+
+    println!("{:?}", crates);
+
+    Ok(())
 }