hive-forge: rewrite bash CLI helper as a rust binary (closes #280)

hive-forge/src/verbs/pr.rs

@@ -0,0 +1,32 @@
+//! `pr <number> [repo]` — print key fields of a PR as JSON.
+
+use anyhow::Result;
+use clap::Args as ClapArgs;
+use serde_json::json;
+
+use crate::client::Client;
+use crate::verbs::print_json;
+
+#[derive(ClapArgs)]
+pub struct Args {
+    /// PR number.
+    number: u64,
+    /// Repo override.
+    repo: Option<String>,
+}
+
+pub fn run(client: &Client, args: Args) -> Result<()> {
+    let repo = client.repo(args.repo.as_deref());
+    let v = client.get_json(&format!("/repos/{repo}/pulls/{}", args.number))?;
+    let trimmed = json!({
+        "number": v.get("number"),
+        "title": v.get("title"),
+        "state": v.get("state"),
+        "merged": v.get("merged"),
+        "user": v.get("user").and_then(|u| u.get("login")),
+        "head_sha": v.get("head").and_then(|h| h.get("sha")),
+        "head_branch": v.get("head").and_then(|h| h.get("label")),
+        "base_branch": v.get("base").and_then(|b| b.get("label")),
+    });
+    print_json(&trimmed)
+}