wip: init commit of clippy annotation reporter

Author: ekump

.github/actions/clippy-annotation-reporter/Cargo.toml

@@ -0,0 +1,17 @@
+[package]
+name = "clippy-annotation-reporter"
+rust-version.workspace = true
+edition.workspace = true
+license.workspace = true
+version = "0.1.0"
+
+[dependencies]
+clap = { version = "4.3", features = ["derive"] }
+octocrab = "0.28"
+anyhow = "1.0"
+regex = "1.9"
+tokio = { version = "1", features = ["full"] }
+serde = { version = "1.0", features = ["derive"] }
+serde_json = "1.0"
+log = "0.4"
+env_logger = "0.10"

.github/actions/clippy-annotation-reporter/action.yml

@@ -0,0 +1,38 @@
+name: 'Clippy Annotation Reporter'
+description: 'Reports changes in Clippy allow annotations'
+author: 'Datadog'
+
+inputs:
+  github-token:
+    description: 'GitHub token for PR comment access'
+    required: true
+    default: ${{ github.token }}
+  allow-annotation-rules:
+    description: 'Comma-separated list of clippy rules to track'
+    required: false
+    default: 'unwrap_used,expect_used,todo,unimplemented,panic,unreachable'
+
+runs:
+  using: 'composite'
+  steps:
+    - name: Set up Rust
+      uses: dtolnay/rust-toolchain@stable
+      with:
+        toolchain: stable
+
+    - name: Build annotation reporter
+      shell: bash
+      run: |
+        cd ${{ github.action_path }}
+        cargo build --release
+
+    - name: Run annotation reporter
+      shell: bash
+      run: |
+        ${{ github.action_path }}/target/release/clippy-annotation-reporter \
+          --token "${{ inputs.github-token }}" \
+          --rules "${{ inputs.panic-rules }}" \
+          --repo "${{ github.repository }}" \
+          --pr "${{ github.event.pull_request.number }}"
+      env:
+        GITHUB_TOKEN: ${{ inputs.github-token }}

.github/actions/clippy-annotation-reporter/src/main.rs

@@ -0,0 +1,58 @@
+use anyhow::{Context, Result};
+use octocrab::Octocrab;
+use std::env;
+
+#[tokio::main]
+async fn main() -> Result<()> {
+    println!("Hello World from clippy-annotation-checker!");
+    println!("Action is running successfully!");
+
+    // Get required environment variables
+    let github_token = env::var("GITHUB_TOKEN")
+        .context("GITHUB_TOKEN environment variable not set")?;
+
+    let github_repository = env::var("GITHUB_REPOSITORY")
+        .context("GITHUB_REPOSITORY environment variable not set")?;
+
+    let event_path = env::var("GITHUB_EVENT_PATH")
+        .context("GITHUB_EVENT_PATH environment variable not set")?;
+
+    // Parse event data to get PR number
+    let event_data = std::fs::read_to_string(event_path)
+        .context("Failed to read event file")?;
+
+    let event_json: serde_json::Value = serde_json::from_str(&event_data)
+        .context("Failed to parse event JSON")?;
+
+    let pr_number = event_json["pull_request"]["number"]
+        .as_u64()
+        .context("Could not find PR number in event data")?;
+
+    // Split repository into owner and name
+    let repo_parts: Vec<&str> = github_repository.split('/').collect();
+    if repo_parts.len() != 2 {
+        anyhow::bail!("Invalid repository format: {}", github_repository);
+    }
+
+    let owner = repo_parts[0];
+    let repo = repo_parts[1];
+
+    println!("Posting Hello World comment to PR #{} in {}/{}", pr_number, owner, repo);
+
+    // Initialize GitHub client
+    let octocrab = Octocrab::builder()
+        .personal_token(github_token)
+        .build()
+        .context("Failed to build GitHub client")?;
+
+    // Post a simple comment
+    octocrab
+        .issues(owner, repo)
+        .create_comment(pr_number, "## Hello World from clippy-annotation-checker!\n\nThis action is running successfully and can post comments to PRs.")
+        .await
+        .context("Failed to post comment")?;
+
+    println!("Comment posted successfully!");
+
+    Ok(())
+}

.github/workflows/clippy-annotation-reporter.yml

@@ -49,7 +49,30 @@ jobs:
           fi
           # shellcheck disable=SC2046
           cargo clippy --workspace --all-targets --all-features -- -D warnings $([ ${{ matrix.rust_version }} = 1.78.0 ] || [ ${{ matrix.rust_version }} = stable ] && echo -Aunknown-lints -Ainvalid_reference_casting -Aclippy::redundant-closure-call)
-
+  clippy-annotation-reporter:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # 4.2.2
+      - name: Set up Rust
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          toolchain: stable
+      - name: Build annotation reporter
+        shell: bash
+        run: |
+          cd ${{ github.action_path }}
+          cargo build --release
+      - name: Run annotation reporter
+        shell: bash
+        run: |
+          ${{ github.action_path }}/target/release/clippy-annotation-reporter \
+            --token "${{ secrets.GITHUB_TOKEN }}" \
+            --rules "unwrap_used,expect_used,todo,unimplemented,panic,unreachable" \
+            --repo "${{ github.repository }}" \
+            --pr "${{ github.event.pull_request.number }}"
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
   licensecheck:
     runs-on: ubuntu-latest
     name: "Presence of licence headers"