Merge pull request #404 from Codium-ai/tr/final_fixes

final fixes

INSTALL.md

@@ -4,66 +4,69 @@
 To get started with PR-Agent quickly, you first need to acquire two tokens:
 
 1. An OpenAI key from [here](https://platform.openai.com/), with access to GPT-4.
-2. A GitHub personal access token (classic) with the repo scope.
+2. A GitHub\GitLab\BitBucket personal access token (classic) with the repo scope.
 
 There are several ways to use PR-Agent:
 
-- [Method 1: Use Docker image (no installation required)](INSTALL.md#method-1-use-docker-image-no-installation-required)
-- [Method 2: Run from source](INSTALL.md#method-2-run-from-source)
-- [Method 3: Run as a GitHub Action](INSTALL.md#method-3-run-as-a-github-action)
-- [Method 4: Run as a polling server](INSTALL.md#method-4-run-as-a-polling-server)
-- [Method 5: Run as a GitHub App](INSTALL.md#method-5-run-as-a-github-app)
-- [Method 6: Deploy as a Lambda Function](INSTALL.md#method-6---deploy-as-a-lambda-function)
-- [Method 7: AWS CodeCommit](INSTALL.md#method-7---aws-codecommit-setup)
-- [Method 8: Run a GitLab webhook server](INSTALL.md#method-8---run-a-gitlab-webhook-server)
-- [Method 9: Run as a Bitbucket Pipeline](INSTALL.md#method-9-run-as-a-bitbucket-pipeline)
+**Locally**
+- [Using Docker image (no installation required)](INSTALL.md#use-docker-image-no-installation-required)
+- [Run from source](INSTALL.md#run-from-source)
+
+**GitHub specific methods**
+- [Run as a GitHub Action](INSTALL.md#run-as-a-github-action)
+- [Run as a polling server](INSTALL.md#run-as-a-polling-server)
+- [Run as a GitHub App](INSTALL.md#run-as-a-github-app)
+- [Deploy as a Lambda Function](INSTALL.md#deploy-as-a-lambda-function)
+- [AWS CodeCommit](INSTALL.md#aws-codecommit-setup)
+
+**GitLab specific methods**
+- [Run a GitLab webhook server](INSTALL.md#run-a-gitlab-webhook-server)
+
+**BitBucket specific methods**
+- [Run as a Bitbucket Pipeline](INSTALL.md#run-as-a-bitbucket-pipeline)
+- [Run on a hosted app](INSTALL.md#run-on-a-hosted-bitbucket-app)
 ---
 
-### Method 1: Use Docker image (no installation required)
+### Use Docker image (no installation required)
 
 To request a review for a PR, or ask a question about a PR, you can run directly from the Docker image. Here's how:
 
-1. To request a review for a PR, run the following command:
-
 For GitHub:
 ```
-docker run --rm -it -e OPENAI.KEY=<your key> -e GITHUB.USER_TOKEN=<your token> codiumai/pr-agent --pr_url <pr_url> review
+docker run --rm -it -e OPENAI.KEY=<your key> -e GITHUB.USER_TOKEN=<your token> codiumai/pr-agent:latest --pr_url <pr_url> review
 ```
 For GitLab:
 ```
-docker run --rm -it -e OPENAI.KEY=<your key> -e CONFIG.GIT_PROVIDER=gitlab -e GITLAB.PERSONAL_ACCESS_TOKEN=<your token> codiumai/pr-agent --pr_url <pr_url> review
+docker run --rm -it -e OPENAI.KEY=<your key> -e CONFIG.GIT_PROVIDER=gitlab -e GITLAB.PERSONAL_ACCESS_TOKEN=<your token> codiumai/pr-agent:latest --pr_url <pr_url> review
 ```
+For BitBucket:
+```
+docker run --rm -it -e CONFIG.GIT_PROVIDER=bitbucket -e OPENAI.KEY=$OPENAI_API_KEY -e BITBUCKET.BEARER_TOKEN=$BITBUCKET_BEARER_TOKEN codiumai/pr-agent:latest --pr_url=<pr_url> review
+```
+
 For other git providers, update CONFIG.GIT_PROVIDER accordingly, and check the `pr_agent/settings/.secrets_template.toml` file for the environment variables expected names and values.
 
-2. To ask a question about a PR, run the following command:
 
+Similarly, to ask a question about a PR, run the following command:
 ```
 docker run --rm -it -e OPENAI.KEY=<your key> -e GITHUB.USER_TOKEN=<your token> codiumai/pr-agent --pr_url <pr_url> ask "<your question>"
 ```
-Note: If you want to ensure you're running a specific version of the Docker image, consider using the image's digest.
-The digest is a unique identifier for a specific version of an image. You can pull and run an image using its digest by referencing it like so: repository@sha256:digest. Always ensure you're using the correct and trusted digest for your operations.
 
-1. To request a review for a PR using a specific digest, run the following command:
+A list of the relevant tools can be found in the [tools guide](./docs/TOOLS_GUIDE.md).
+
+
+Note: If you want to ensure you're running a specific version of the Docker image, consider using the image's digest:
 ```bash
 docker run --rm -it -e OPENAI.KEY=<your key> -e GITHUB.USER_TOKEN=<your token> codiumai/pr-agent@sha256:71b5ee15df59c745d352d84752d01561ba64b6d51327f97d46152f0c58a5f678 --pr_url <pr_url> review
 ```
-
-2. To ask a question about a PR using the same digest, run the following command:
-```bash
-docker run --rm -it -e OPENAI.KEY=<your key> -e GITHUB.USER_TOKEN=<your token> codiumai/pr-agent@sha256:71b5ee15df59c745d352d84752d01561ba64b6d51327f97d46152f0c58a5f678 --pr_url <pr_url> ask "<your question>"
+in addition, you can run a [specific released versions](./RELEASE_NOTES.md) of pr-agent, for example:
+```
+codiumai/pr-agent@v0.8
 ```
-
-Possible questions you can ask include:
-
-- What is the main theme of this PR?
-- Is the PR ready for merge?
-- What are the main changes in this PR?
-- Should this PR be split into smaller parts?
-- Can you compose a rhymed song about this PR?
 
 ---
 
-### Method 2: Run from source
+### Run from source
 
 1. Clone this repository:
 
@@ -93,11 +96,14 @@ python3 -m pr_agent.cli --pr_url <pr_url> review
 python3 -m pr_agent.cli --pr_url <pr_url> ask <your question>
 python3 -m pr_agent.cli --pr_url <pr_url> describe
 python3 -m pr_agent.cli --pr_url <pr_url> improve
+python3 -m pr_agent.cli --pr_url <pr_url> add_docs
+python3 -m pr_agent.cli --issue_url <issue_url> similar_issue
+...
 ```
 
 ---
 
-### Method 3: Run as a GitHub Action
+### Run as a GitHub Action
 
 You can use our pre-built Github Action Docker image to run PR-Agent as a Github Action.
 
@@ -167,10 +173,11 @@ When you open your next PR, you should see a comment from `github-actions` bot w
 
 ---
 
-### Method 4: Run as a polling server
-Request reviews by tagging your Github user on a PR
+### Run as a polling server
+Request reviews by tagging your GitHub user on a PR
+
+Follow [steps 1-3](#run-as-a-github-action) of the GitHub Action setup.
 
-Follow steps 1-3 of method 2.
 Run the following command to start the server:
 
 ```
@@ -179,7 +186,7 @@ python pr_agent/servers/github_polling.py
 
 ---
 
-### Method 5: Run as a GitHub App
+### Run as a GitHub App
 Allowing you to automate the review process on your private or public repositories.
 
 1. Create a GitHub App from the [Github Developer Portal](https://docs.github.com/en/developers/apps/creating-a-github-app).
@@ -260,13 +267,13 @@ docker push codiumai/pr-agent:github_app  # Push to your Docker repository
 9. Install the app by navigating to the "Install App" tab and selecting your desired repositories.
 
 > **Note:** When running PR-Agent from GitHub App, the default configuration file (configuration.toml) will be loaded.<br>
-> However, you can override the default tool parameters by uploading a local configuration file<br>
-> For more information please check out [CONFIGURATION.md](Usage.md#working-from-github-app-pre-built-repo)
+> However, you can override the default tool parameters by uploading a local configuration file `.pr_agent.toml`<br>
+> For more information please check out the [USAGE GUIDE](./Usage.md#working-with-github-app)
 ---
 
-### Method 6 - Deploy as a Lambda Function
+### Deploy as a Lambda Function
 
-1. Follow steps 1-5 of [Method 5](#method-5-run-as-a-github-app).
+1. Follow steps 1-5 of [Method 5](#run-as-a-github-app).
 2. Build a docker image that can be used as a lambda function
     ```shell
     docker buildx build --platform=linux/amd64 . -t codiumai/pr-agent:serverless -f docker/Dockerfile.lambda
@@ -278,12 +285,12 @@ docker push codiumai/pr-agent:github_app  # Push to your Docker repository
     ```
 4. Create a lambda function that uses the uploaded image. Set the lambda timeout to be at least 3m.
 5. Configure the lambda function to have a Function URL.
-6. Go back to steps 8-9 of [Method 5](#method-5-run-as-a-github-app) with the function url as your Webhook URL.
+6. Go back to steps 8-9 of [Method 5](#run-as-a-github-app) with the function url as your Webhook URL.
     The Webhook URL would look like `https://<LAMBDA_FUNCTION_URL>/api/v1/github_webhooks`
 
 ---
 
-### Method 7 - AWS CodeCommit Setup
+### AWS CodeCommit Setup
 
 Not all features have been added to CodeCommit yet.  As of right now, CodeCommit has been implemented to run the pr-agent CLI on the command line, using AWS credentials stored in environment variables.  (More features will be added in the future.)  The following is a set of instructions to have pr-agent do a review of your CodeCommit pull request from the command line:
 
@@ -353,7 +360,7 @@ PYTHONPATH="/PATH/TO/PROJECTS/pr-agent" python pr_agent/cli.py \
 
 ---
 
-### Method 8 - Run a GitLab webhook server
+### Run a GitLab webhook server
 
 1. From the GitLab workspace or group, create an access token. Enable the "api" scope only.
 2. Generate a random secret for your app, and save it for later. For example, you can use:
@@ -372,7 +379,7 @@ In the "Trigger" section, check the ‘comments’ and ‘merge request events
 
 
 
-### Method 9: Run as a Bitbucket Pipeline
+### Run as a Bitbucket Pipeline
 
 
 You can use the Bitbucket Pipeline system to run PR-Agent on every pull request open or update.
@@ -396,7 +403,12 @@ pipelines:
 OPENAI_API_KEY: <your key>
 BITBUCKET_BEARER_TOKEN: <your token>
 
-You can get a Bitbucket token for your repository by following Repository Settings -> Security -> Access Tokens
+You can get a Bitbucket token for your repository by following Repository Settings -> Security -> Access Tokens.
+
+
+### Run on a hosted Bitbucket app
+
+Please contact <support@codium.ai> if you're interested in a hosted BitBucket app solution that provides full functionality including PR reviews and comment handling. It's based on the [bitbucket_app.py](https://github.com/Codium-ai/pr-agent/blob/main/pr_agent/git_providers/bitbucket_provider.py) implmentation.
 
 
 =======

README.md

@@ -28,16 +28,16 @@ CodiumAI `PR-Agent` is an open-source tool aiming to help developers review pull
 \
 ‣ **Update Changelog ([`/update_changelog`](./docs/UPDATE_CHANGELOG.md))**: Automatically updating the CHANGELOG.md file with the PR changes.
 \
-‣ **Find similar issue ([`/similar_issue`](./docs/SIMILAR_ISSUE.md))**: Automatically retrieves and presents similar issues
+‣ **Find Similar Issue ([`/similar_issue`](./docs/SIMILAR_ISSUE.md))**: Automatically retrieves and presents similar issues
 \
 ‣ **Add Documentation ([`/add_docs`](./docs/ADD_DOCUMENTATION.md))**: Automatically adds documentation to un-documented functions/classes in the PR.
 
-See the [Usage Guide](./Usage.md) for instructions how to run the different tools from _CLI_, _online usage_, Or by _automatically triggering_ them when a new PR is opened.
+See the [Installation Guide](./INSTALL.md) for instructions how to install and run the tool on different platforms.
+
+See the [Usage Guide](./Usage.md) for instructions how to run the different tools from _CLI_, _online usage_, or by _automatically triggering_ them when a new PR is opened.
 
 See the [Tools Guide](./docs/TOOLS_GUIDE.md) for detailed description of the different tools.
 
-See the [Release notes](./RELEASE_NOTES.md) for updates on the latest changes.
-
 <h3>Example results:</h3>
 </div>
 <h4><a href="https://github.com/Codium-ai/pr-agent/pull/229#issuecomment-1687561986">/describe:</a></h4>
@@ -204,6 +204,9 @@ Here are some advantages of PR-Agent:
   - [x] Documentation (is the PR properly documented)
   - [ ] ...
 
+See the [Release notes](./RELEASE_NOTES.md) for updates on the latest changes.
+
+
 ## Similar Projects
 
 - [CodiumAI - Meaningful tests for busy devs](https://github.com/Codium-ai/codiumai-vscode-release) (although various capabilities are much more advanced in the CodiumAI IDE plugins)
@@ -211,7 +214,12 @@ Here are some advantages of PR-Agent:
 - [openai-pr-reviewer](https://github.com/coderabbitai/openai-pr-reviewer)
 - [CodeReview BOT](https://github.com/anc95/ChatGPT-CodeReview)
 - [AI-Maintainer](https://github.com/merwanehamadi/AI-Maintainer)
-  
+
+## Data Privacy
+
+If you use self-host PR-Agent, e.g. via CLI running on your computer, with your OpenAI API key, it is between you and OpenAI. You can read their API data privacy policy here:
+https://openai.com/enterprise-privacy
+
 ## Links
 
 [![Join our Discord community](https://raw.githubusercontent.com/Codium-ai/codiumai-vscode-release/main/media/docs/Joincommunity.png)](https://discord.gg/kG35uSHDBc)

Usage.md

@@ -12,7 +12,7 @@
 
 ### Introduction
 
-See the **[installation guide](/INSTALL.md)** for instructions on how to setup PR-Agent. After installation, there are three basic ways to invoke CodiumAI PR-Agent:
+After [installation](/INSTALL.md), there are three basic ways to invoke CodiumAI PR-Agent:
 1. Locally running a CLI command
 2. Online usage - by [commenting](https://github.com/Codium-ai/pr-agent/pull/229#issuecomment-1695021901) on a PR
 3. Enabling PR-Agent tools to run automatically when a new PR is opened

docs/GENERATE_CUSTOM_LABELS.md

@@ -0,0 +1,35 @@
+# Generate Custom Labels
+The `generte_labels` tool scans the PR code changes, and given a list of labels and their descriptions, it automatically suggests labels that match the PR code changes.
+
+It can be invoked manually by commenting on any PR:
+```
+/generate_labels
+```
+For example:
+
+If we wish to add detect changes to SQL queries in a given PR, we can add the following custom label along with its description:
+
+<kbd><img src=./../pics/custom_labels_list.png width="768"></kbd>
+When running the `generte_labels` tool on a PR that includes changes in SQL queries, it will automatically suggest the custom label:
+<kbd><img src=./../pics/custom_label_published.png width="768"></kbd>
+
+### Configuration options
+To enable custom labels, you need to add the following configuration to the [custom_labels file](./../pr_agent/settings/custom_labels.toml):
+ - Change `enable_custom_labels` to True: This will turn off the default labels and enable the custom labels provided in the custom_labels.toml file.
+ - Add the custom labels to the custom_labels.toml file. It should be formatted as follows:
+ ```
+[custom_labels."Custom Label Name"]
+description = "Description of when AI should suggest this label"
+```
+ - You can add modify the list to include all the custom labels you wish to use in your repository.
+
+#### Github Action
+To use the `generte_labels` tool with Github Action:
+
+- Add the following file to your repository under `env` section in `.github/workflows/pr_agent.yml`
+- Comma separated list of custom labels and their descriptions
+- The number of labels and descriptions should be the same and in the same order (empty descriptions are allowed):
+```
+CUSTOM_LABELS: "label1, label2, ..."
+CUSTOM_LABELS_DESCRIPTION: "label1 description, label2 description, ..."
+```

pr_agent/agent/pr_agent.py

@@ -7,6 +7,7 @@ from pr_agent.tools.pr_add_docs import PRAddDocs
 from pr_agent.tools.pr_code_suggestions import PRCodeSuggestions
 from pr_agent.tools.pr_config import PRConfig
 from pr_agent.tools.pr_description import PRDescription
+from pr_agent.tools.pr_generate_labels import PRGenerateLabels
 from pr_agent.tools.pr_information_from_user import PRInformationFromUser
 from pr_agent.tools.pr_questions import PRQuestions
 from pr_agent.tools.pr_reviewer import PRReviewer
@@ -31,6 +32,7 @@ command2class = {
     "settings": PRConfig,
     "similar_issue": PRSimilarIssue,
     "add_docs": PRAddDocs,
+    "generate_labels": PRGenerateLabels,
 }
 
 commands = list(command2class.keys())

pr_agent/algo/utils.py

@@ -304,3 +304,19 @@ def try_fix_yaml(review_text: str) -> dict:
         except:
             pass
     return data
+
+
+def set_custom_labels(variables):
+    labels = get_settings().custom_labels
+    if not labels:
+        # set default labels
+        labels = ['Bug fix', 'Tests', 'Bug fix with tests', 'Refactoring', 'Enhancement', 'Documentation', 'Other']
+        labels_list = "\n      - ".join(labels) if labels else ""
+        labels_list = f"      - {labels_list}" if labels_list else ""
+        variables["custom_labels"] = labels_list
+        return
+    final_labels = ""
+    for k, v in labels.items():
+        final_labels += f"      - {k} ({v['description']})\n"
+    variables["custom_labels"] = final_labels
+    variables["custom_labels_examples"] = f"      - {list(labels.keys())[0]}"

pr_agent/config_loader.py

@@ -23,8 +23,10 @@ global_settings = Dynaconf(
         "settings/pr_sort_code_suggestions_prompts.toml",
         "settings/pr_information_from_user_prompts.toml",
         "settings/pr_update_changelog_prompts.toml",
+        "settings/pr_custom_labels.toml",
         "settings/pr_add_docs.toml",
-        "settings_prod/.secrets.toml"
+        "settings_prod/.secrets.toml",
+        "settings/custom_labels.toml"
     ]]
 )
 

pr_agent/git_providers/bitbucket_provider.py

@@ -142,15 +142,10 @@ class BitbucketProvider(GitProvider):
     def remove_initial_comment(self):
         try:
             for comment in self.temp_comments:
-                self.remove_comment(comment)
+                self.pr.delete(f"comments/{comment}")
         except Exception as e:
             get_logger().exception(f"Failed to remove temp comments, error: {e}")
 
-    def remove_comment(self, comment):
-        try:
-            self.pr.delete(f"comments/{comment}")
-        except Exception as e:
-            get_logger().exception(f"Failed to remove comment, error: {e}")
 
     # funtion to create_inline_comment
     def create_inline_comment(self, body: str, relevant_file: str, relevant_line_in_file: str):

pr_agent/git_providers/codecommit_provider.py

@@ -221,9 +221,6 @@ class CodeCommitProvider(GitProvider):
     def remove_initial_comment(self):
         return ""  # not implemented yet
 
-    def remove_comment(self, comment):
-        return ""  # not implemented yet
-
     def publish_inline_comment(self, body: str, relevant_file: str, relevant_line_in_file: str):
         # https://boto3.amazonaws.com/v1/documentation/api/latest/reference/services/codecommit/client/post_comment_for_compared_commit.html
         raise NotImplementedError("CodeCommit provider does not support publishing inline comments yet")

pr_agent/git_providers/gerrit_provider.py

@@ -396,8 +396,5 @@ class GerritProvider(GitProvider):
         # shutil.rmtree(self.repo_path)
         pass
 
-    def remove_comment(self, comment):
-        pass
-
     def get_pr_branch(self):
         return self.repo.head

pr_agent/git_providers/git_provider.py

@@ -71,10 +71,6 @@ class GitProvider(ABC):
     def remove_initial_comment(self):
         pass
 
-    @abstractmethod
-    def remove_comment(self, comment):
-        pass
-
     @abstractmethod
     def get_languages(self):
         pass

pr_agent/git_providers/github_provider.py

@@ -50,7 +50,7 @@ class GithubProvider(GitProvider):
     def get_incremental_commits(self):
         self.commits = list(self.pr.get_commits())
 
-        self.previous_review = self.get_previous_review(full=True, incremental=True)
+        self.get_previous_review()
         if self.previous_review:
             self.incremental.commits_range = self.get_commit_range()
             # Get all files changed during the commit range
@@ -63,7 +63,7 @@ class GithubProvider(GitProvider):
 
     def get_commit_range(self):
         last_review_time = self.previous_review.created_at
-        first_new_commit_index = None
+        first_new_commit_index = 0
         for index in range(len(self.commits) - 1, -1, -1):
             if self.commits[index].commit.author.date > last_review_time:
                 self.incremental.first_new_commit_sha = self.commits[index].sha
@@ -71,21 +71,15 @@ class GithubProvider(GitProvider):
             else:
                 self.incremental.last_seen_commit_sha = self.commits[index].sha
                 break
-        return self.commits[first_new_commit_index:] if first_new_commit_index is not None else []
+        return self.commits[first_new_commit_index:]
 
-    def get_previous_review(self, *, full: bool, incremental: bool):
-        if not (full or incremental):
-            raise ValueError("At least one of full or incremental must be True")
-        if not getattr(self, "comments", None):
-            self.comments = list(self.pr.get_issue_comments())
-        prefixes = []
-        if full:
-            prefixes.append("## PR Analysis")
-        if incremental:
-            prefixes.append("## Incremental PR Review")
+    def get_previous_review(self):
+        self.previous_review = None
+        self.comments = list(self.pr.get_issue_comments())
         for index in range(len(self.comments) - 1, -1, -1):
-            if any(self.comments[index].body.startswith(prefix) for prefix in prefixes):
-                return self.comments[index]
+            if self.comments[index].body.startswith("## PR Analysis") or self.comments[index].body.startswith("## Incremental PR Review"):
+                self.previous_review = self.comments[index]
+                break
 
     def get_files(self):
         if self.incremental.is_incremental and self.file_set:
@@ -224,16 +218,10 @@ class GithubProvider(GitProvider):
         try:
             for comment in getattr(self.pr, 'comments_list', []):
                 if comment.is_temporary:
-                    self.remove_comment(comment)
+                    comment.delete()
         except Exception as e:
             get_logger().exception(f"Failed to remove initial comment, error: {e}")
 
-    def remove_comment(self, comment):
-        try:
-            comment.delete()
-        except Exception as e:
-            get_logger().exception(f"Failed to remove comment, error: {e}")
-
     def get_title(self):
         return self.pr.title
 
@@ -270,7 +258,10 @@ class GithubProvider(GitProvider):
 
     def get_repo_settings(self):
         try:
-            contents = self.repo_obj.get_contents(".pr_agent.toml", ref=self.pr.head.sha).decoded_content
+            # contents = self.repo_obj.get_contents(".pr_agent.toml", ref=self.pr.head.sha).decoded_content
+
+            # more logical to take 'pr_agent.toml' from the default branch
+            contents = self.repo_obj.get_contents(".pr_agent.toml").decoded_content
             return contents
         except Exception:
             return ""

pr_agent/git_providers/gitlab_provider.py

@@ -287,16 +287,10 @@ class GitLabProvider(GitProvider):
     def remove_initial_comment(self):
         try:
             for comment in self.temp_comments:
-                self.remove_comment(comment)
+                comment.delete()
         except Exception as e:
             get_logger().exception(f"Failed to remove temp comments, error: {e}")
 
-    def remove_comment(self, comment):
-        try:
-            comment.delete()
-        except Exception as e:
-            get_logger().exception(f"Failed to remove comment, error: {e}")
-
     def get_title(self):
         return self.mr.title
 

pr_agent/git_providers/local_git_provider.py

@@ -140,9 +140,6 @@ class LocalGitProvider(GitProvider):
     def remove_initial_comment(self):
         pass  # Not applicable to the local git provider, but required by the interface
 
-    def remove_comment(self, comment):
-        pass  # Not applicable to the local git provider, but required by the interface
-
     def get_languages(self):
         """
         Calculate percentage of languages in repository. Used for hunk prioritisation.

pr_agent/git_providers/utils.py

@@ -26,6 +26,7 @@ def apply_repo_settings(pr_url):
                         section_dict[key] = value
                     get_settings().unset(section)
                     get_settings().set(section, section_dict, merge=False)
+                    get_logger().info(f"Applying repo settings for section {section}, contents: {contents}")
 
         finally:
             if repo_settings_file:

pr_agent/servers/github_action_runner.py

@@ -5,6 +5,8 @@ import os
 from pr_agent.agent.pr_agent import PRAgent
 from pr_agent.config_loader import get_settings
 from pr_agent.git_providers import get_git_provider
+from pr_agent.git_providers.utils import apply_repo_settings
+from pr_agent.log import get_logger
 from pr_agent.tools.pr_code_suggestions import PRCodeSuggestions
 from pr_agent.tools.pr_description import PRDescription
 from pr_agent.tools.pr_reviewer import PRReviewer
@@ -17,8 +19,11 @@ async def run_action():
     OPENAI_KEY = os.environ.get('OPENAI_KEY') or os.environ.get('OPENAI.KEY')
     OPENAI_ORG = os.environ.get('OPENAI_ORG') or os.environ.get('OPENAI.ORG')
     GITHUB_TOKEN = os.environ.get('GITHUB_TOKEN')
-    get_settings().set("CONFIG.PUBLISH_OUTPUT_PROGRESS", False)
+    CUSTOM_LABELS = os.environ.get('CUSTOM_LABELS')
+    CUSTOM_LABELS_DESCRIPTIONS = os.environ.get('CUSTOM_LABELS_DESCRIPTIONS')
+    # CUSTOM_LABELS is a comma separated list of labels (string), convert to list and strip spaces
 
+    get_settings().set("CONFIG.PUBLISH_OUTPUT_PROGRESS", False)
 
     # Check if required environment variables are set
     if not GITHUB_EVENT_NAME:
@@ -33,6 +38,7 @@ async def run_action():
     if not GITHUB_TOKEN:
         print("GITHUB_TOKEN not set")
         return
+    # CUSTOM_LABELS_DICT = handle_custom_labels(CUSTOM_LABELS, CUSTOM_LABELS_DESCRIPTIONS)
 
     # Set the environment variables in the settings
     get_settings().set("OPENAI.KEY", OPENAI_KEY)
@@ -40,6 +46,7 @@ async def run_action():
         get_settings().set("OPENAI.ORG", OPENAI_ORG)
     get_settings().set("GITHUB.USER_TOKEN", GITHUB_TOKEN)
     get_settings().set("GITHUB.DEPLOYMENT_TYPE", "user")
+    # get_settings().set("CUSTOM_LABELS", CUSTOM_LABELS_DICT)
 
     # Load the event payload
     try:
@@ -49,6 +56,15 @@ async def run_action():
         print(f"Failed to parse JSON: {e}")
         return
 
+    try:
+        get_logger().info("Applying repo settings")
+        pr_url = event_payload.get("pull_request", {}).get("html_url")
+        if pr_url:
+            apply_repo_settings(pr_url)
+            get_logger().info(f"enable_custom_labels: {get_settings().config.enable_custom_labels}")
+    except Exception as e:
+        get_logger().info(f"github action: failed to apply repo settings: {e}")
+
     # Handle pull request event
     if GITHUB_EVENT_NAME == "pull_request":
         action = event_payload.get("action")
@@ -88,5 +104,31 @@ async def run_action():
                         await PRAgent().handle_request(url, body)
 
 
+def handle_custom_labels(CUSTOM_LABELS, CUSTOM_LABELS_DESCRIPTIONS):
+    if CUSTOM_LABELS:
+        CUSTOM_LABELS = [x.strip() for x in CUSTOM_LABELS.split(',')]
+    else:
+        # Set default labels
+        CUSTOM_LABELS = ['Bug fix', 'Tests', 'Bug fix with tests', 'Refactoring', 'Enhancement', 'Documentation',
+                         'Other']
+        print(f"Using default labels: {CUSTOM_LABELS}")
+    if CUSTOM_LABELS_DESCRIPTIONS:
+        CUSTOM_LABELS_DESCRIPTIONS = [x.strip() for x in CUSTOM_LABELS_DESCRIPTIONS.split(',')]
+    else:
+        # Set default labels
+        CUSTOM_LABELS_DESCRIPTIONS = ['Fixes a bug in the code', 'Adds or modifies tests',
+                                     'Fixes a bug in the code and adds or modifies tests',
+                                     'Refactors the code without changing its functionality',
+                                     'Adds new features or functionality',
+                                     'Adds or modifies documentation',
+                                     'Other changes that do not fit in any of the above categories']
+        print(f"Using default labels: {CUSTOM_LABELS_DESCRIPTIONS}")
+    # create a dictionary of labels and descriptions
+    CUSTOM_LABELS_DICT = dict()
+    for i in range(len(CUSTOM_LABELS)):
+        CUSTOM_LABELS_DICT[CUSTOM_LABELS[i]] = {'description': CUSTOM_LABELS_DESCRIPTIONS[i]}
+    return CUSTOM_LABELS_DICT
+
+
 if __name__ == '__main__':
     asyncio.run(run_action())

pr_agent/servers/github_app.py

@@ -1,7 +1,7 @@
 import copy
 import os
-import asyncio.locks
-from typing import Any, Dict, List, Tuple
+import time
+from typing import Any, Dict
 
 import uvicorn
 from fastapi import APIRouter, FastAPI, HTTPException, Request, Response
@@ -14,9 +14,8 @@ from pr_agent.algo.utils import update_settings_from_args
 from pr_agent.config_loader import get_settings, global_settings
 from pr_agent.git_providers import get_git_provider
 from pr_agent.git_providers.utils import apply_repo_settings
-from pr_agent.git_providers.git_provider import IncrementalPR
 from pr_agent.log import LoggingFormat, get_logger, setup_logger
-from pr_agent.servers.utils import verify_signature, DefaultDictWithTimeout
+from pr_agent.servers.utils import verify_signature
 
 setup_logger(fmt=LoggingFormat.JSON)
 
@@ -48,7 +47,6 @@ async def handle_marketplace_webhooks(request: Request, response: Response):
     body = await get_body(request)
     get_logger().info(f'Request body:\n{body}')
 
-
 async def get_body(request):
     try:
         body = await request.json()
@@ -63,9 +61,7 @@ async def get_body(request):
     return body
 
 
-_duplicate_requests_cache = DefaultDictWithTimeout(ttl=get_settings().github_app.duplicate_requests_cache_ttl)
-_duplicate_push_triggers = DefaultDictWithTimeout(ttl=get_settings().github_app.push_trigger_pending_tasks_ttl)
-_pending_task_duplicate_push_conditions = DefaultDictWithTimeout(asyncio.locks.Condition, ttl=get_settings().github_app.push_trigger_pending_tasks_ttl)
+_duplicate_requests_cache = {}
 
 
 async def handle_request(body: Dict[str, Any], event: str):
@@ -113,110 +109,40 @@ async def handle_request(body: Dict[str, Any], event: str):
     # handle pull_request event:
     #   automatically review opened/reopened/ready_for_review PRs as long as they're not in draft,
     #   as well as direct review requests from the bot
-    elif event == 'pull_request' and action != 'synchronize':
-        pull_request, api_url = _check_pull_request_event(action, body, log_context, bot_user)
-        if not (pull_request and api_url):
+    elif event == 'pull_request':
+        pull_request = body.get("pull_request")
+        if not pull_request:
+            return {}
+        api_url = pull_request.get("url")
+        if not api_url:
+            return {}
+        log_context["api_url"] = api_url
+        if pull_request.get("draft", True) or pull_request.get("state") != "open" or pull_request.get("user", {}).get("login", "") == bot_user:
             return {}
         if action in get_settings().github_app.handle_pr_actions:
             if action == "review_requested":
                 if body.get("requested_reviewer", {}).get("login", "") != bot_user:
                     return {}
-            get_logger().info(f"Performing review for {api_url=} because of {event=} and {action=}")
-            await _perform_commands(get_settings().github_app.pr_commands, agent, body, api_url, log_context)
-
-    # handle pull_request event with synchronize action - "push trigger" for new commits
-    elif event == 'pull_request' and action == 'synchronize' and get_settings().github_app.handle_push_trigger:
-        pull_request, api_url = _check_pull_request_event(action, body, log_context, bot_user)
-        if not (pull_request and api_url):
-            return {}
-
-        # TODO: do we still want to get the list of commits to filter bot/merge commits?
-        before_sha = body.get("before")
-        after_sha = body.get("after")
-        merge_commit_sha = pull_request.get("merge_commit_sha")
-        if before_sha == after_sha:
-            return {}
-        if get_settings().github_app.push_trigger_ignore_merge_commits and after_sha == merge_commit_sha:
-            return {}
-        if get_settings().github_app.push_trigger_ignore_bot_commits and body.get("sender", {}).get("login", "") == bot_user:
-            return {}
-
-        # Prevent triggering multiple times for subsequent push triggers when one is enough:
-        # The first push will trigger the processing, and if there's a second push in the meanwhile it will wait.
-        # Any more events will be discarded, because they will all trigger the exact same processing on the PR.
-        # We let the second event wait instead of discarding it because while the first event was being processed,
-        # more commits may have been pushed that led to the subsequent events,
-        # so we keep just one waiting as a delegate to trigger the processing for the new commits when done waiting.
-        current_active_tasks = _duplicate_push_triggers.setdefault(api_url, 0)
-        max_active_tasks = 2 if get_settings().github_app.push_trigger_pending_tasks_backlog else 1
-        if current_active_tasks < max_active_tasks:
-            # first task can enter, and second tasks too if backlog is enabled
-            get_logger().info(
-                f"Continue processing push trigger for {api_url=} because there are {current_active_tasks} active tasks"
-            )
-            _duplicate_push_triggers[api_url] += 1
-        else:
-            get_logger().info(
-                f"Skipping push trigger for {api_url=} because another event already triggered the same processing"
-            )
-            return {}
-        async with _pending_task_duplicate_push_conditions[api_url]:
-            if current_active_tasks == 1:
-                # second task waits
-                get_logger().info(
-                    f"Waiting to process push trigger for {api_url=} because the first task is still in progress"
-                )
-                await _pending_task_duplicate_push_conditions[api_url].wait()
-                get_logger().info(f"Finished waiting to process push trigger for {api_url=} - continue with flow")
-
-        try:
-            if get_settings().github_app.push_trigger_wait_for_initial_review and not get_git_provider()(api_url, incremental=IncrementalPR(True)).previous_review:
-                get_logger().info(f"Skipping incremental review because there was no initial review for {api_url=} yet")
-                return {}
-            get_logger().info(f"Performing incremental review for {api_url=} because of {event=} and {action=}")
-            await _perform_commands(get_settings().github_app.push_commands, agent, body, api_url, log_context)
-
-        finally:
-            # release the waiting task block
-            async with _pending_task_duplicate_push_conditions[api_url]:
-                _pending_task_duplicate_push_conditions[api_url].notify(1)
-                _duplicate_push_triggers[api_url] -= 1
+                if pull_request.get("created_at") == pull_request.get("updated_at"):
+                    # avoid double reviews when opening a PR for the first time
+                    return {}
+            get_logger().info(f"Performing review because of event={event} and action={action}")
+            apply_repo_settings(api_url)
+            for command in get_settings().github_app.pr_commands:
+                split_command = command.split(" ")
+                command = split_command[0]
+                args = split_command[1:]
+                other_args = update_settings_from_args(args)
+                new_command = ' '.join([command] + other_args)
+                get_logger().info(body)
+                get_logger().info(f"Performing command: {new_command}")
+                with get_logger().contextualize(**log_context):
+                    await agent.handle_request(api_url, new_command)
 
     get_logger().info("event or action does not require handling")
     return {}
 
 
-def _check_pull_request_event(action: str, body: dict, log_context: dict, bot_user: str) -> Tuple[Dict[str, Any], str]:
-    invalid_result = {}, ""
-    pull_request = body.get("pull_request")
-    if not pull_request:
-        return invalid_result
-    api_url = pull_request.get("url")
-    if not api_url:
-        return invalid_result
-    log_context["api_url"] = api_url
-    if pull_request.get("draft", True) or pull_request.get("state") != "open" or pull_request.get("user", {}).get("login", "") == bot_user:
-        return invalid_result
-    if action in ("review_requested", "synchronize") and pull_request.get("created_at") == pull_request.get("updated_at"):
-        # avoid double reviews when opening a PR for the first time
-        return invalid_result
-    return pull_request, api_url
-
-
-async def _perform_commands(commands: List[str], agent: PRAgent, body: dict, api_url: str, log_context: dict):
-    apply_repo_settings(api_url)
-    for command in commands:
-        split_command = command.split(" ")
-        command = split_command[0]
-        args = split_command[1:]
-        other_args = update_settings_from_args(args)
-        new_command = ' '.join([command] + other_args)
-        get_logger().info(body)
-        get_logger().info(f"Performing command: {new_command}")
-        with get_logger().contextualize(**log_context):
-            await agent.handle_request(api_url, new_command)
-
-
 def _is_duplicate_request(body: Dict[str, Any]) -> bool:
     """
     In some deployments its possible to get duplicate requests if the handling is long,
@@ -224,8 +150,13 @@ def _is_duplicate_request(body: Dict[str, Any]) -> bool:
     """
     request_hash = hash(str(body))
     get_logger().info(f"request_hash: {request_hash}")
-    is_duplicate = _duplicate_requests_cache.get(request_hash, False)
-    _duplicate_requests_cache[request_hash] = True
+    request_time = time.monotonic()
+    ttl = get_settings().github_app.duplicate_requests_cache_ttl  # in seconds
+    to_delete = [key for key, key_time in _duplicate_requests_cache.items() if request_time - key_time > ttl]
+    for key in to_delete:
+        del _duplicate_requests_cache[key]
+    is_duplicate = request_hash in _duplicate_requests_cache
+    _duplicate_requests_cache[request_hash] = request_time
     if is_duplicate:
         get_logger().info(f"Ignoring duplicate request {request_hash}")
     return is_duplicate

pr_agent/servers/utils.py

@@ -1,8 +1,5 @@
 import hashlib
 import hmac
-import time
-from collections import defaultdict
-from typing import Callable, Any
 
 from fastapi import HTTPException
 
@@ -28,59 +25,3 @@ def verify_signature(payload_body, secret_token, signature_header):
 class RateLimitExceeded(Exception):
     """Raised when the git provider API rate limit has been exceeded."""
     pass
-
-
-class DefaultDictWithTimeout(defaultdict):
-    """A defaultdict with a time-to-live (TTL)."""
-
-    def __init__(
-        self,
-        default_factory: Callable[[], Any] = None,
-        ttl: int = None,
-        refresh_interval: int = 60,
-        update_key_time_on_get: bool = True,
-        *args,
-        **kwargs,
-    ):
-        """
-        Args:
-            default_factory: The default factory to use for keys that are not in the dictionary.
-            ttl: The time-to-live (TTL) in seconds.
-            refresh_interval: How often to refresh the dict and delete items older than the TTL.
-            update_key_time_on_get: Whether to update the access time of a key also on get (or only when set).
-        """
-        super().__init__(default_factory, *args, **kwargs)
-        self.__key_times = dict()
-        self.__ttl = ttl
-        self.__refresh_interval = refresh_interval
-        self.__update_key_time_on_get = update_key_time_on_get
-        self.__last_refresh = self.__time() - self.__refresh_interval
-
-    @staticmethod
-    def __time():
-        return time.monotonic()
-
-    def __refresh(self):
-        if self.__ttl is None:
-            return
-        request_time = self.__time()
-        if request_time - self.__last_refresh > self.__refresh_interval:
-            return
-        to_delete = [key for key, key_time in self.__key_times.items() if request_time - key_time > self.__ttl]
-        for key in to_delete:
-            del self[key]
-        self.__last_refresh = request_time
-
-    def __getitem__(self, __key):
-        if self.__update_key_time_on_get:
-            self.__key_times[__key] = self.__time()
-        self.__refresh()
-        return super().__getitem__(__key)
-
-    def __setitem__(self, __key, __value):
-        self.__key_times[__key] = self.__time()
-        return super().__setitem__(__key, __value)
-
-    def __delitem__(self, __key):
-        del self.__key_times[__key]
-        return super().__delitem__(__key)

pr_agent/settings/configuration.toml

@@ -24,7 +24,6 @@ num_code_suggestions=4
 inline_code_comments = false
 ask_and_reflect=false
 automatic_review=true
-remove_previous_review_comment=false
 extra_instructions = ""
 
 [pr_description] # /describe #
@@ -34,10 +33,13 @@ add_original_user_description=false
 keep_original_user_title=false
 use_bullet_points=true
 extra_instructions = ""
+
 # markers
 use_description_markers=false
 include_generated_by_header=true
 
+#custom_labels = ['Bug fix', 'Tests', 'Bug fix with tests', 'Refactoring', 'Enhancement', 'Documentation', 'Other']
+
 [pr_questions] # /ask #
 
 [pr_code_suggestions] # /improve #
@@ -84,27 +86,6 @@ pr_commands = [
     "/describe --pr_description.add_original_user_description=true --pr_description.keep_original_user_title=true",
     "/auto_review",
 ]
-# settings for "pull_request" event with "synchronize" action - used to detect and handle push triggers for new commits
-handle_push_trigger = false
-push_trigger_ignore_bot_commits = true
-push_trigger_ignore_merge_commits = true
-push_trigger_wait_for_initial_review = true
-push_trigger_pending_tasks_backlog = true
-push_trigger_pending_tasks_ttl = 300
-push_commands = [
-    "/describe --pr_description.add_original_user_description=true --pr_description.keep_original_user_title=true",
-    """/auto_review -i \
-       --pr_reviewer.require_focused_review=false \
-       --pr_reviewer.require_score_review=false \
-       --pr_reviewer.require_tests_review=false \
-       --pr_reviewer.require_security_review=false \
-       --pr_reviewer.require_estimate_effort_to_review=false \
-       --pr_reviewer.num_code_suggestions=0 \
-       --pr_reviewer.inline_code_comments=false \
-       --pr_reviewer.remove_previous_review_comment=true \
-       --pr_reviewer.extra_instructions='' \
-    """
-]
 
 [gitlab]
 # URL to the gitlab service
@@ -145,4 +126,4 @@ max_issues_to_scan = 500
 [pinecone]
 # fill and place in .secrets.toml
 #api_key = ...
-# environment = "gcp-starter"
+# environment = "gcp-starter"

pr_agent/settings/custom_labels.toml

@@ -0,0 +1,18 @@
+[config]
+enable_custom_labels=false
+
+## template for custom labels
+#[custom_labels."Bug fix"]
+#description = "Fixes a bug in the code"
+#[custom_labels."Tests"]
+#description = "Adds or modifies tests"
+#[custom_labels."Bug fix with tests"]
+#description = "Fixes a bug in the code and adds or modifies tests"
+#[custom_labels."Refactoring"]
+#description = "Code refactoring without changing functionality"
+#[custom_labels."Enhancement"]
+#description = "Adds new features or functionality"
+#[custom_labels."Documentation"]
+#description = "Adds or modifies documentation"
+#[custom_labels."Other"]
+#description = "Other changes that do not fit in any of the above categories"

pr_agent/settings/pr_custom_labels.toml

@@ -0,0 +1,72 @@
+[pr_custom_labels_prompt]
+system="""You are CodiumAI-PR-Reviewer, a language model designed to review git pull requests.
+Your task is to label the type of the PR content.
+- Make sure not to focus the new PR code (the '+' lines).
+- If needed, each YAML output should be in block scalar format ('|-')
+{%- if extra_instructions %}
+
+Extra instructions from the user:
+'
+{{ extra_instructions }}
+'
+{% endif %}
+
+You must use the following YAML schema to format your answer:
+```yaml
+PR Type:
+  type: array
+{%- if enable_custom_labels %}
+  description: One or more labels that describe the PR type. Don't output the description in the parentheses.
+{%- endif %}
+  items:
+    type: string
+    enum:
+{%- if enable_custom_labels %}
+{{ custom_labels }}
+{%- else %}
+      - Bug fix
+      - Tests
+      - Refactoring
+      - Enhancement
+      - Documentation
+      - Other
+{%- endif %}
+
+Example output:
+```yaml
+PR Type:
+{%- if enable_custom_labels %}
+{{ custom_labels_examples }}
+{%- else %}
+  - Bug fix
+  - Tests
+{%- endif %}
+```
+
+Make sure to output a valid YAML. Don't repeat the prompt in the answer, and avoid outputting the 'type' and 'description' fields.
+"""
+
+user="""PR Info:
+Previous title: '{{title}}'
+Previous description: '{{description}}'
+Branch: '{{branch}}'
+{%- if language %}
+
+Main language: {{language}}
+{%- endif %}
+{%- if commit_messages_str %}
+
+Commit messages:
+{{commit_messages_str}}
+{%- endif %}
+
+
+The PR Git Diff:
+```
+{{diff}}
+```
+Note that lines in the diff body are prefixed with a symbol that represents the type of change: '-' for deletions, '+' for additions, and ' ' (a space) for unchanged lines.
+
+Response (should be a valid YAML, and nothing else):
+```yaml
+"""

pr_agent/settings/pr_description_prompts.toml

@@ -19,16 +19,22 @@ PR Title:
   description: an informative title for the PR, describing its main theme
 PR Type:
   type: array
+{%- if enable_custom_labels %}
+  description: One or more labels that describe the PR type. Don't output the description in the parentheses.
+{%- endif %}
   items:
     type: string
     enum:
+{%- if enable_custom_labels %}
+{{ custom_labels }}
+{%- else %}
       - Bug fix
       - Tests
-      - Bug fix with tests
       - Refactoring
       - Enhancement
       - Documentation
       - Other
+{%- endif %}
 PR Description:
   type: string
   description: an informative and concise description of the PR.
@@ -52,7 +58,11 @@ Example output:
 PR Title: |-
   ...
 PR Type:
+{%- if enable_custom_labels %}
+{{ custom_labels_examples }}
+{%- else %}
   - Bug fix
+{%- endif %}
 PR Description: |-
   ...
 PR Main Files Walkthrough:

pr_agent/settings/pr_reviewer_prompts.toml

@@ -51,13 +51,22 @@ PR Analysis:
     description: summary of the PR in 2-3 sentences.
   Type of PR:
     type: string
+{%- if enable_custom_labels %}
+  description: One or more labels that describe the PR type. Don't output the description in the parentheses.
+{%- endif %}
+  items:
+    type: string
     enum:
+{%- if enable_custom_labels %}
+{{ custom_labels }}
+{%- else %}
       - Bug fix
       - Tests
       - Refactoring
       - Enhancement
       - Documentation
       - Other
+{%- endif %}
 {%- if require_score %}
   Score:
     type: int

pr_agent/tools/pr_description.py

@@ -7,7 +7,7 @@ from jinja2 import Environment, StrictUndefined
 from pr_agent.algo.ai_handler import AiHandler
 from pr_agent.algo.pr_processing import get_pr_diff, retry_with_fallback_models
 from pr_agent.algo.token_handler import TokenHandler
-from pr_agent.algo.utils import load_yaml
+from pr_agent.algo.utils import load_yaml, set_custom_labels
 from pr_agent.config_loader import get_settings
 from pr_agent.git_providers import get_git_provider
 from pr_agent.git_providers.git_provider import get_main_pr_language
@@ -42,7 +42,10 @@ class PRDescription:
             "diff": "",  # empty diff for initial calculation
             "use_bullet_points": get_settings().pr_description.use_bullet_points,
             "extra_instructions": get_settings().pr_description.extra_instructions,
-            "commit_messages_str": self.git_provider.get_commit_messages()
+            "commit_messages_str": self.git_provider.get_commit_messages(),
+            "enable_custom_labels": get_settings().config.enable_custom_labels,
+            "custom_labels": "",
+            "custom_labels_examples": "",
         }
 
         self.user_description = self.git_provider.get_user_description()
@@ -140,6 +143,7 @@ class PRDescription:
         variables["diff"] = self.patches_diff  # update diff
 
         environment = Environment(undefined=StrictUndefined)
+        set_custom_labels(variables)
         system_prompt = environment.from_string(get_settings().pr_description_prompt.system).render(variables)
         user_prompt = environment.from_string(get_settings().pr_description_prompt.user).render(variables)
 
@@ -156,7 +160,6 @@ class PRDescription:
 
         return response
 
-
     def _prepare_data(self):
         # Load the AI prediction data into a dictionary
         self.data = load_yaml(self.prediction.strip())

pr_agent/tools/pr_generate_labels.py

@@ -0,0 +1,163 @@
+import copy
+import re
+from typing import List, Tuple
+
+from jinja2 import Environment, StrictUndefined
+
+from pr_agent.algo.ai_handler import AiHandler
+from pr_agent.algo.pr_processing import get_pr_diff, retry_with_fallback_models
+from pr_agent.algo.token_handler import TokenHandler
+from pr_agent.algo.utils import load_yaml, set_custom_labels
+from pr_agent.config_loader import get_settings
+from pr_agent.git_providers import get_git_provider
+from pr_agent.git_providers.git_provider import get_main_pr_language
+from pr_agent.log import get_logger
+
+
+class PRGenerateLabels:
+    def __init__(self, pr_url: str, args: list = None):
+        """
+        Initialize the PRGenerateLabels object with the necessary attributes and objects for generating labels
+        corresponding to the PR using an AI model.
+        Args:
+            pr_url (str): The URL of the pull request.
+            args (list, optional): List of arguments passed to the PRGenerateLabels class. Defaults to None.
+        """
+        # Initialize the git provider and main PR language
+        self.git_provider = get_git_provider()(pr_url)
+        self.main_pr_language = get_main_pr_language(
+            self.git_provider.get_languages(), self.git_provider.get_files()
+        )
+        self.pr_id = self.git_provider.get_pr_id()
+
+        # Initialize the AI handler
+        self.ai_handler = AiHandler()
+    
+        # Initialize the variables dictionary
+        self.vars = {
+            "title": self.git_provider.pr.title,
+            "branch": self.git_provider.get_pr_branch(),
+            "description": self.git_provider.get_pr_description(full=False),
+            "language": self.main_pr_language,
+            "diff": "",  # empty diff for initial calculation
+            "use_bullet_points": get_settings().pr_description.use_bullet_points,
+            "extra_instructions": get_settings().pr_description.extra_instructions,
+            "commit_messages_str": self.git_provider.get_commit_messages(),
+            "custom_labels": "",
+            "custom_labels_examples": "",
+            "enable_custom_labels": get_settings().config.enable_custom_labels,
+        }
+
+        # Initialize the token handler
+        self.token_handler = TokenHandler(
+            self.git_provider.pr,
+            self.vars,
+            get_settings().pr_custom_labels_prompt.system,
+            get_settings().pr_custom_labels_prompt.user,
+        )
+    
+        # Initialize patches_diff and prediction attributes
+        self.patches_diff = None
+        self.prediction = None
+
+    async def run(self):
+        """
+        Generates a PR labels using an AI model and publishes it to the PR.
+        """
+
+        try:
+            get_logger().info(f"Generating a PR labels {self.pr_id}")
+            if get_settings().config.publish_output:
+                self.git_provider.publish_comment("Preparing PR labels...", is_temporary=True)
+
+            await retry_with_fallback_models(self._prepare_prediction)
+
+            get_logger().info(f"Preparing answer {self.pr_id}")
+            if self.prediction:
+                self._prepare_data()
+            else:
+                return None
+
+            pr_labels = self._prepare_labels()
+
+            if get_settings().config.publish_output:
+                get_logger().info(f"Pushing labels {self.pr_id}")
+                if self.git_provider.is_supported("get_labels"):
+                    current_labels = self.git_provider.get_labels()
+                    if current_labels is None:
+                        current_labels = []
+                    self.git_provider.publish_labels(pr_labels + current_labels)
+                self.git_provider.remove_initial_comment()
+        except Exception as e:
+            get_logger().error(f"Error generating PR labels {self.pr_id}: {e}")
+        
+        return ""
+
+    async def _prepare_prediction(self, model: str) -> None:
+        """
+        Prepare the AI prediction for the PR labels based on the provided model.
+
+        Args:
+            model (str): The name of the model to be used for generating the prediction.
+
+        Returns:
+            None
+
+        Raises:
+            Any exceptions raised by the 'get_pr_diff' and '_get_prediction' functions.
+
+        """
+
+        get_logger().info(f"Getting PR diff {self.pr_id}")
+        self.patches_diff = get_pr_diff(self.git_provider, self.token_handler, model)
+        get_logger().info(f"Getting AI prediction {self.pr_id}")
+        self.prediction = await self._get_prediction(model)
+
+    async def _get_prediction(self, model: str) -> str:
+        """
+        Generate an AI prediction for the PR labels based on the provided model.
+
+        Args:
+            model (str): The name of the model to be used for generating the prediction.
+
+        Returns:
+            str: The generated AI prediction.
+        """
+        variables = copy.deepcopy(self.vars)
+        variables["diff"] = self.patches_diff  # update diff
+
+        environment = Environment(undefined=StrictUndefined)
+        set_custom_labels(variables)
+        system_prompt = environment.from_string(get_settings().pr_custom_labels_prompt.system).render(variables)
+        user_prompt = environment.from_string(get_settings().pr_custom_labels_prompt.user).render(variables)
+
+        if get_settings().config.verbosity_level >= 2:
+            get_logger().info(f"\nSystem prompt:\n{system_prompt}")
+            get_logger().info(f"\nUser prompt:\n{user_prompt}")
+
+        response, finish_reason = await self.ai_handler.chat_completion(
+            model=model,
+            temperature=0.2,
+            system=system_prompt,
+            user=user_prompt
+        )
+
+        return response
+
+    def _prepare_data(self):
+        # Load the AI prediction data into a dictionary
+        self.data = load_yaml(self.prediction.strip())
+
+
+
+    def _prepare_labels(self) -> List[str]:
+        pr_types = []
+
+        # If the 'PR Type' key is present in the dictionary, split its value by comma and assign it to 'pr_types'
+        if 'PR Type' in self.data:
+            if type(self.data['PR Type']) == list:
+                pr_types = self.data['PR Type']
+            elif type(self.data['PR Type']) == str:
+                pr_types = self.data['PR Type'].split(',')
+
+        return pr_types

pr_agent/tools/pr_reviewer.py

@@ -9,7 +9,7 @@ from yaml import SafeLoader
 from pr_agent.algo.ai_handler import AiHandler
 from pr_agent.algo.pr_processing import get_pr_diff, retry_with_fallback_models
 from pr_agent.algo.token_handler import TokenHandler
-from pr_agent.algo.utils import convert_to_markdown, load_yaml, try_fix_yaml
+from pr_agent.algo.utils import convert_to_markdown, load_yaml, try_fix_yaml, set_custom_labels
 from pr_agent.config_loader import get_settings
 from pr_agent.git_providers import get_git_provider
 from pr_agent.git_providers.git_provider import IncrementalPR, get_main_pr_language
@@ -63,6 +63,8 @@ class PRReviewer:
             'answer_str': answer_str,
             "extra_instructions": get_settings().pr_reviewer.extra_instructions,
             "commit_messages_str": self.git_provider.get_commit_messages(),
+            "custom_labels": "",
+            "enable_custom_labels": get_settings().config.enable_custom_labels,
         }
 
         self.token_handler = TokenHandler(
@@ -98,9 +100,6 @@ class PRReviewer:
             if self.is_auto and not get_settings().pr_reviewer.automatic_review:
                 get_logger().info(f'Automatic review is disabled {self.pr_url}')
                 return None
-            if self.is_auto and self.incremental.is_incremental and not self.incremental.first_new_commit_sha:
-                get_logger().info(f"Incremental review is enabled for {self.pr_url} but there are no new commits")
-                return None
 
             get_logger().info(f'Reviewing PR: {self.pr_url} ...')
 
@@ -114,10 +113,9 @@ class PRReviewer:
 
             if get_settings().config.publish_output:
                 get_logger().info('Pushing PR review...')
-                previous_review_comment = self._get_previous_review_comment()
                 self.git_provider.publish_comment(pr_comment)
                 self.git_provider.remove_initial_comment()
-                self._remove_previous_review_comment(previous_review_comment)
+
                 if get_settings().pr_reviewer.inline_code_comments:
                     get_logger().info('Pushing inline code comments...')
                     self._publish_inline_code_comments()
@@ -153,6 +151,7 @@ class PRReviewer:
         variables["diff"] = self.patches_diff  # update diff
 
         environment = Environment(undefined=StrictUndefined)
+        set_custom_labels(variables)
         system_prompt = environment.from_string(get_settings().pr_review_prompt.system).render(variables)
         user_prompt = environment.from_string(get_settings().pr_review_prompt.user).render(variables)
 
@@ -232,13 +231,9 @@ class PRReviewer:
         if self.incremental.is_incremental:
             last_commit_url = f"{self.git_provider.get_pr_url()}/commits/" \
                               f"{self.git_provider.incremental.first_new_commit_sha}"
-            last_commit_msg = self.incremental.commits_range[0].commit.message if self.incremental.commits_range else ""
-            incremental_review_markdown_text = f"Starting from commit {last_commit_url}"
-            if last_commit_msg:
-                incremental_review_markdown_text += f"  \n_({last_commit_msg.splitlines(keepends=False)[0]})_"
             data = OrderedDict(data)
             data.update({'Incremental PR Review': {
-                "⏮️ Review for commits since previous PR-Agent review": incremental_review_markdown_text}})
+                "⏮️ Review for commits since previous PR-Agent review": f"Starting from commit {last_commit_url}"}})
             data.move_to_end('Incremental PR Review', last=False)
 
         markdown_text = convert_to_markdown(data, self.git_provider.is_supported("gfm_markdown"))
@@ -319,26 +314,3 @@ class PRReviewer:
                     break
 
         return question_str, answer_str
-
-    def _get_previous_review_comment(self):
-        """
-        Get the previous review comment if it exists.
-        """
-        try:
-            if get_settings().pr_reviewer.remove_previous_review_comment and hasattr(self.git_provider, "get_previous_review"):
-                return self.git_provider.get_previous_review(
-                    full=not self.incremental.is_incremental,
-                    incremental=self.incremental.is_incremental,
-                )
-        except Exception as e:
-            get_logger().exception(f"Failed to get previous review comment, error: {e}")
-
-    def _remove_previous_review_comment(self, comment):
-        """
-        Remove the previous review comment if it exists.
-        """
-        try:
-            if get_settings().pr_reviewer.remove_previous_review_comment and comment:
-                self.git_provider.remove_comment(comment)
-        except Exception as e:
-            get_logger().exception(f"Failed to remove previous review comment, error: {e}")