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| 1 | +//! Commenter module for clippy-annotation-reporter |
| 2 | +//! |
| 3 | +//! This module handles interactions with GitHub for commenting on PRs, |
| 4 | +//! including finding existing comments and updating or creating comments. |
| 5 | +
|
| 6 | +use anyhow::{Context as _, Result}; |
| 7 | +use octocrab::models::issues::Comment; |
| 8 | +use octocrab::Octocrab; |
| 9 | + |
| 10 | +/// Handles GitHub comment operations |
| 11 | +pub struct Commenter<'a> { |
| 12 | + octocrab: &'a Octocrab, |
| 13 | + owner: String, |
| 14 | + repo: String, |
| 15 | + pr_number: u64, |
| 16 | + signature: String, |
| 17 | +} |
| 18 | + |
| 19 | +impl<'a> Commenter<'a> { |
| 20 | + /// Create a new commenter instance |
| 21 | + pub fn new(octocrab: &'a Octocrab, owner: &str, repo: &str, pr_number: u64) -> Self { |
| 22 | + Self { |
| 23 | + octocrab, |
| 24 | + owner: owner.to_string(), |
| 25 | + repo: repo.to_string(), |
| 26 | + pr_number, |
| 27 | + signature: "<!-- clippy-annotation-reporter-comment -->".to_string(), |
| 28 | + } |
| 29 | + } |
| 30 | + |
| 31 | + /// Set a custom signature for identifying the bot's comments |
| 32 | + pub fn with_signature(mut self, signature: &str) -> Self { |
| 33 | + self.signature = signature.to_string(); |
| 34 | + self |
| 35 | + } |
| 36 | + |
| 37 | + /// Post or update a comment on the PR with the given report |
| 38 | + pub async fn run(&self, report: String) -> Result<()> { |
| 39 | + // Add the signature to the report |
| 40 | + let report_with_signature = format!("{}\n\n{}", report, self.signature); |
| 41 | + |
| 42 | + // Search for existing comment by the bot |
| 43 | + println!("Checking for existing comment on PR #{}", self.pr_number); |
| 44 | + let existing_comment = self.find_existing_comment().await?; |
| 45 | + |
| 46 | + // Update existing comment or create a new one |
| 47 | + if let Some(comment_id) = existing_comment { |
| 48 | + println!("Updating existing comment #{}", comment_id); |
| 49 | + self.octocrab |
| 50 | + .issues(&self.owner, &self.repo) |
| 51 | + .update_comment(comment_id.into(), report_with_signature) |
| 52 | + .await |
| 53 | + .context("Failed to update existing comment")?; |
| 54 | + println!("Comment updated successfully!"); |
| 55 | + } else { |
| 56 | + println!("Creating new comment on PR #{}", self.pr_number); |
| 57 | + self.octocrab |
| 58 | + .issues(&self.owner, &self.repo) |
| 59 | + .create_comment(self.pr_number, report_with_signature) |
| 60 | + .await |
| 61 | + .context("Failed to post comment to PR")?; |
| 62 | + println!("Comment created successfully!"); |
| 63 | + } |
| 64 | + |
| 65 | + Ok(()) |
| 66 | + } |
| 67 | + |
| 68 | + /// Find existing comment by the bot on a PR |
| 69 | + async fn find_existing_comment(&self) -> Result<Option<u64>> { |
| 70 | + // Get all comments on the PR |
| 71 | + let mut page = self |
| 72 | + .octocrab |
| 73 | + .issues(&self.owner, &self.repo) |
| 74 | + .list_comments(self.pr_number) |
| 75 | + .per_page(100) |
| 76 | + .send() |
| 77 | + .await |
| 78 | + .context("Failed to list PR comments")?; |
| 79 | + |
| 80 | + // Process current and subsequent pages |
| 81 | + loop { |
| 82 | + for comment in &page { |
| 83 | + if comment |
| 84 | + .body |
| 85 | + .as_ref() |
| 86 | + .map_or(false, |body| body.contains(&self.signature)) |
| 87 | + { |
| 88 | + return Ok(Some(*comment.id)); |
| 89 | + } |
| 90 | + } |
| 91 | + |
| 92 | + // Try to get the next page if it exists |
| 93 | + match self.octocrab.get_page(&page.next).await { |
| 94 | + Ok(Some(next_page)) => { |
| 95 | + page = next_page; |
| 96 | + } |
| 97 | + Ok(None) => { |
| 98 | + // No more pages |
| 99 | + break; |
| 100 | + } |
| 101 | + Err(e) => { |
| 102 | + println!("Warning: Failed to fetch next page of comments: {}", e); |
| 103 | + break; |
| 104 | + } |
| 105 | + } |
| 106 | + } |
| 107 | + |
| 108 | + // No matching comment found |
| 109 | + Ok(None) |
| 110 | + } |
| 111 | +} |
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