maintainers/scripts: add check-maintainer-usernames

Co-authored-by: Sandro <[e-mail]>

maintainers/scripts/check-maintainer-usernames/.gitignore

···
+/target

maintainers/scripts/check-maintainer-usernames/Cargo.toml

···
+[package]
+name = "check-maintainers"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+octocrab = "0.42.1"
+serde_json = "1.0.133"
+tokio = { version = "1.41.1", features = ["fs", "macros", "rt-multi-thread"] }

maintainers/scripts/check-maintainer-usernames/src/main.rs

···
+use std::{env, error::Error, io::{self, Write}};
+
+use tokio::fs;
+
+#[tokio::main]
+async fn main() {
+    real_main().await.unwrap();
+}
+
+async fn real_main() -> Result<(), Box<dyn Error>> {
+    let gh = octocrab::OctocrabBuilder::default()
+        .personal_token(env::var("GITHUB_PAT").expect("no GITHUB_PAT configured"))
+        .build()?;
+
+    // first run: nix-instantiate -A lib.maintainers --eval --strict --json > maintainers.json
+    let data: serde_json::Value = serde_json::from_str(&fs::read_to_string("maintainers.json").await?)?;
+
+    let data = data.as_object().unwrap();
+    let total = data.len();
+    for (i, (maintainer_name, v)) in data.iter().enumerate() {
+        print!("\r{i}/{total}");
+        io::stdout().flush()?;
+        let Some(github_id) = v.get("githubId") else {
+            println!("\rWARN: no id for {maintainer_name}");
+            continue;
+        };
+        let Some(github) = v.get("github") else {
+            println!("\rWARN: no username for {maintainer_name}");
+            continue;
+        };
+        let Ok(name) = gh.users_by_id(github_id.as_u64().unwrap()).profile().await else {
+            println!("\rWARN: error fetching {maintainer_name}");
+            continue;
+        };
+        let name = name.login;
+        if name.to_ascii_lowercase() != github.as_str().unwrap().to_ascii_lowercase() {
+            println!("\rERR: {maintainer_name} has github = {github}, but username really is '{name}'");
+        }
+    }
+
+    Ok(())
+}