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

hive-forge/src/verbs/view.rs

@@ -0,0 +1,62 @@
+//! `view <number> [repo]` — dump title + body + all comments as
+//! markdown.
+
+use anyhow::Result;
+use clap::Args as ClapArgs;
+use serde_json::Value;
+
+use crate::client::Client;
+
+#[derive(ClapArgs)]
+pub struct Args {
+    /// Issue or PR number.
+    number: u64,
+    /// Repo override (default from `HIVE_FORGE_REPO`).
+    repo: Option<String>,
+}
+
+pub fn run(client: &Client, args: Args) -> Result<()> {
+    let repo = client.repo(args.repo.as_deref());
+    let issue = client.get_json(&format!("/repos/{repo}/issues/{}", args.number))?;
+    let title = issue.get("title").and_then(Value::as_str).unwrap_or("");
+    let body = issue.get("body").and_then(Value::as_str).unwrap_or("");
+    let state = issue.get("state").and_then(Value::as_str).unwrap_or("?");
+    let user = issue
+        .get("user")
+        .and_then(|u| u.get("login"))
+        .and_then(Value::as_str)
+        .unwrap_or("?");
+    let kind = if issue.get("pull_request").is_some_and(|p| !p.is_null()) {
+        "PR"
+    } else {
+        "issue"
+    };
+    println!("# {kind} #{} [{state}] by {user}", args.number);
+    println!("{title}");
+    if !body.is_empty() {
+        println!();
+        println!("{body}");
+    }
+    let comments = client.get_json(&format!(
+        "/repos/{repo}/issues/{}/comments?limit=50",
+        args.number
+    ))?;
+    let arr = comments.as_array().cloned().unwrap_or_default();
+    if !arr.is_empty() {
+        println!();
+        println!("---");
+        println!("## Comments ({})", arr.len());
+        println!();
+        for c in &arr {
+            let cu = c
+                .get("user")
+                .and_then(|u| u.get("login"))
+                .and_then(Value::as_str)
+                .unwrap_or("?");
+            let cb = c.get("body").and_then(Value::as_str).unwrap_or("");
+            println!("**{cu}**: {cb}");
+            println!();
+        }
+    }
+    Ok(())
+}