zagens_runtime/cli/
pr_prompt.rs

1//! PR review prompt formatting (retained for unit tests).
2
3#[derive(Debug, Clone, Default)]
4pub(crate) struct GhPullRequest {
5    pub(crate) title: String,
6    pub(crate) body: String,
7    pub(crate) base: String,
8    pub(crate) head: String,
9    pub(crate) url: String,
10}
11
12pub(crate) fn format_pr_prompt(number: u32, view: &GhPullRequest, diff: &str) -> String {
13    const MAX_DIFF_BYTES: usize = 200 * 1024;
14    let diff_section = if diff.len() > MAX_DIFF_BYTES {
15        let cut = (0..=MAX_DIFF_BYTES)
16            .rev()
17            .find(|&i| diff.is_char_boundary(i))
18            .unwrap_or(0);
19        format!(
20            "{}\n\n[…diff truncated at {} KiB; ask me to fetch more if needed]\n",
21            &diff[..cut],
22            MAX_DIFF_BYTES / 1024
23        )
24    } else {
25        diff.to_string()
26    };
27    let body = if view.body.trim().is_empty() {
28        "(no description)".to_string()
29    } else {
30        view.body.trim().to_string()
31    };
32    let title = if view.title.trim().is_empty() {
33        format!("(PR #{number})")
34    } else {
35        view.title.trim().to_string()
36    };
37    let branches = match (view.base.is_empty(), view.head.is_empty()) {
38        (false, false) => format!("{} ← {}", view.base, view.head),
39        (false, true) => view.base.clone(),
40        (true, false) => view.head.clone(),
41        _ => "(unknown)".to_string(),
42    };
43    format!(
44        "Review PR #{number} — {title}\n\
45         \n\
46         URL: {url}\n\
47         Branches: {branches}\n\
48         \n\
49         ## Description\n\
50         \n\
51         {body}\n\
52         \n\
53         ## Diff\n\
54         \n\
55         ```diff\n\
56         {diff_section}\n\
57         ```\n",
58        url = if view.url.is_empty() {
59            "(unavailable)"
60        } else {
61            view.url.as_str()
62        },
63    )
64}
zagens_runtime/cli/pr_prompt.rs

zagens_runtime/cli/
pr_prompt.rs
