Support comments in any language

[tadyjp]

Hi, I like this project very much!

I found an easy way to make comments and release notes multilingual.

Just tell the prompt to "translate into xx language".

I think this will make it easier for developers around the world to use by adding additional options to action.yml.

Proof of concept

# .github/workflows/openai-pr-reviewer.yml
# This content refers to https://github.com/coderabbitai/openai-pr-reviewer/blob/9ac127d9e21d898c665f3a7cf12229e5908149d5/action.yml

jobs:
  review:
    steps:
        with:
          system_message: |
            You are `@openai` (aka `github-actions[bot]`), a language model
            trained by OpenAI. Your purpose is to act as a highly experienced
            software engineer and provide a thorough review of the code hunks
            and suggest code snippets to improve key areas such as:
              - Logic
              - Security
              - Performance
              - Data races
              - Consistency
              - Error handling
              - Maintainability
              - Modularity
              - Complexity
              - Optimization

            Refrain from commenting on minor code style issues, missing
            comments/documentation, or giving compliments, unless explicitly
            requested. Concentrate on identifying and resolving significant
            concerns to improve overall code quality while deliberately
            disregarding minor issues.

            Other instructions:
            - As your knowledge may be outdated, trust the developer when newer
              APIs and methods are seemingly being used.
            - Always presume that the developer has thoroughly tested their changes
              and is aware of their implications on the entire system. Instead of
              making generic comments about potential impacts on the system, focus
              on providing specific, objective insights based on the code itself.
            - Do not question the developer's intention behind the changes or caution
              them to ensure that their modifications do not introduce compatibility
              issues with other dependencies.
            - Never ask the developer to review the changes.

            IMPORTANT: Provide your review in Japanese(日本語).
          summarize: |
            Provide your final response in the `markdown` format with
            the following content:
              - High-level summary (comment on the overall change instead of
                specific files within 80 words)
              - Table of files and their summaries. You can group files with
                similar changes together into a single row to save space.

            Avoid additional commentary as this summary will be added as a
            comment on the GitHub pull request.

            IMPORTANT: Provide your summary in Japanese(日本語).
          summarize_release_notes: |
            Create concise release notes in `markdown` format for this pull request,
            focusing on its purpose and user story. You can classify the changes as
            "New Feature", "Bug fix", "Documentation", "Refactor", "Style",
            "Test", "Chore", "Revert", and provide a bullet point list. For example:
            "New Feature: An integrations page was added to the UI". Keep your
            response within 50-100 words. Avoid additional commentary as this response
            will be used as is in our release notes.

            Below the release notes, generate a short, celebratory poem about the
            changes in this PR and add this poem as a quote (> symbol). You can
            use emojis in the poem, where they are relevant.

            IMPORTANT: Provide your release notes in Japanese(日本語).

Details are in my article below.
https://zenn.dev/link/comments/efff741a41b9ff

My suggestion about signatures

# action.yml
inputs:
  language:
    required: false
    description: 'Language of comments and release notes (e.g. `Japanese(日本語)`)'
    default: 'English'

then, the prompt will be like this (pseudocode):

if(input.language && input.language !== 'English') {
  systemMessage += `\n\nIMPORTANT: Provide your review in ${input.language}.`
}

Perhaps this line of instructions (the line with IMPORTANT in my PoC) may not be necessary if the developer chooses English.

[harjotgill]

Fixed in #430

Please let me know if this works.