OpenCommit

Author

Auto-generate meaningful commits in a second

Killing lame commits with AI 🤯🔫

🪩 Winner of GitHub 2023 hackathon 🪩

---

All the commits in this repo are authored by OpenCommit — look at the commits to see how OpenCommit works. Emojis and long commit descriptions are configurable, basically everything is.

Setup OpenCommit as a CLI tool

You can use OpenCommit by simply running it via the CLI like this oco. 2 seconds and your staged changes are committed with a meaningful message.

1. Install OpenCommit globally to use in any repository:

``sh
npm install -g opencommit
`

2. Get your API key from OpenAI or other supported LLM providers (we support them all). Make sure that you add your OpenAI payment details to your account, so the API works.

3. Set the key to OpenCommit config:

`sh
oco config set OCO_API_KEY=
`

Your API key is stored locally in the ~/.opencommit config file.

Usage

You can call OpenCommit with oco command to generate a commit message for your staged changes:

`sh
git add
oco
`

Running git add is optional, oco will do it for you.

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You can also run it with local model through ollama:

- install and start ollama
- run ollama run mistral (do this only once, to pull model)
- run (in your project directory):

`sh
git add
oco config set OCO_AI_PROVIDER='ollama' OCO_MODEL='llama3:8b'
`

Default model is mistral.

If you have ollama that is set up in docker/ on another machine with GPUs (not locally), you can change the default endpoint url.

You can do so by setting the OCO_API_URL environment variable as follows:

`sh
oco config set OCO_API_URL='http://192.168.1.10:11434/api/chat'
`

where 192.168.1.10 is example of endpoint URL, where you have ollama set up.

#### Troubleshooting Ollama IPv6/IPv4 Connection Fix

If you encounter issues with Ollama, such as the error

`sh
✖ local model issues. details: connect ECONNREFUSED ::1:11434
`

It's likely because Ollama is not listening on IPv6 by default. To fix this, you can set the OLLAMA_HOST environment variable to 0.0.0.0 before starting Ollama:

`bash
export OLLAMA_HOST=0.0.0.0
`

This will make Ollama listen on all interfaces, including IPv6 and IPv4, resolving the connection issue. You can add this line to your shell configuration file (like .bashrc or .zshrc) to make it persistent across sessions.

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There are multiple optional flags that can be used with the oco command:

#### Use Full GitMoji Specification

Link to the GitMoji specification: https://gitmoji.dev/

This flag can only be used if the OCO_EMOJI configuration item is set to true. This flag allows users to use all emojis in the GitMoji specification, By default, the GitMoji full specification is set to false, which only includes 10 emojis (🐛✨📝🚀✅♻️⬆️🔧🌐💡).

This is due to limit the number of tokens sent in each request. However, if you would like to use the full GitMoji specification, you can use the --fgm flag.

`
oco --fgm
`

#### Skip Commit Confirmation

This flag allows users to automatically commit the changes without having to manually confirm the commit message. This is useful for users who want to streamline the commit process and avoid additional steps. To use this flag, you can run the following command:

`
oco --yes
`

Configuration

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Create a .env file and add OpenCommit config variables there like this:

`env
...
OCO_AI_PROVIDER=
OCO_API_KEY= // or other LLM provider API token
OCO_API_URL=
OCO_API_CUSTOM_HEADERS=
OCO_TOKENS_MAX_INPUT=
OCO_TOKENS_MAX_OUTPUT=
OCO_DESCRIPTION=
OCO_EMOJI=
OCO_MODEL=
OCO_LANGUAGE=
OCO_MESSAGE_TEMPLATE_PLACEHOLDER=
OCO_PROMPT_MODULE=
OCO_ONE_LINE_COMMIT=
`

Global configs are same as local configs, but they are stored in the global ~/.opencommit config file and set with oco config set command, e.g. oco config set OCO_MODEL=gpt-4o.

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Local config still has more priority than Global config, but you may set OCO_MODEL and OCO_LOCALE globally and set local configs for OCO_EMOJI and OCO_DESCRIPTION per repo which is more convenient.

Simply set any of the variables above like this:

`sh
oco config set OCO_MODEL=gpt-4o-mini
`

To see all available configuration parameters and their accepted values:

`sh
oco config describe
`

To see details for a specific parameter:

`sh
oco config describe OCO_MODEL
`

Configure GitMoji to preface a message.

`sh
oco config set OCO_EMOJI=true
`

To remove preface emojis:

`sh
oco config set OCO_EMOJI=false
`

Other config options are behaving the same.

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You can set the OCO_WHY config to true to have OpenCommit output a short description of WHY the changes were done after the commit message. Default is false.

To make this perform accurate we must store 'what files do' in some kind of an index or embedding and perform a lookup (kinda RAG) for the accurate git commit message. If you feel like building this comment on this ticket https://github.com/di-sukharev/opencommit/issues/398 and let's go from there together.

`sh
oco config set OCO_WHY=true
`

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By default, OpenCommit uses gpt-4o-mini model.

You may switch to gpt-4o which performs better, but costs more 🤠

`sh
oco config set OCO_MODEL=gpt-4o
`

or for as a cheaper option:

`sh
oco config set OCO_MODEL=gpt-3.5-turbo
`

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OpenCommit automatically fetches available models from your provider when you run oco setup. Models are cached for 7 days to reduce API calls.

To see available models for your current provider:

`sh
oco models
`

To refresh the model list (e.g., after new models are released):

`sh
oco models --refresh
`

To see models for a specific provider:

`sh
oco models --provider anthropic
`

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By default OpenCommit uses OpenAI.

You could switch to Azure OpenAI Service or Flowise or Ollama.

`sh
oco config set OCO_AI_PROVIDER=azure OCO_API_KEY= OCO_API_URL=

oco config set OCO_AI_PROVIDER=flowise OCO_API_KEY= OCO_API_URL=

oco config set OCO_AI_PROVIDER=ollama OCO_API_KEY= OCO_API_URL=
`

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To globally specify the language used to generate commit messages:

`sh


de, German, Deutsch

`sh
oco config set OCO_GITPUSH=false
`

and it will exit right after commit is confirmed without asking if you would like to push to remote.

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OpenCommit allows you to choose the prompt module used to generate commit messages. By default, OpenCommit uses its conventional-commit message generator. However, you can switch to using the @commitlint prompt module if you prefer. This option lets you generate commit messages in respect with the local config.

You can set this option by running the following command:

`sh
oco config set OCO_PROMPT_MODULE=
`

Replace with either conventional-commit or @commitlint.

#### Example:

To switch to using the '@commitlint prompt module, run:

`sh
oco config set OCO_PROMPT_MODULE=@commitlint
`

To switch back to the default conventional-commit message generator, run:

`sh
oco config set OCO_PROMPT_MODULE=conventional-commit
`

#### Integrating with @commitlint

The integration between @commitlint and OpenCommit is done automatically the first time OpenCommit is run with OCO_PROMPT_MODULE set to @commitlint. However, if you need to force set or reset the configuration for @commitlint, you can run the following command:

`sh
oco commitlint force
`

To view the generated configuration for @commitlint, you can use this command:

`sh
oco commitlint get
`

This allows you to ensure that the configuration is set up as desired.

Additionally, the integration creates a file named .opencommit-commitlint which contains the prompts used for the local @commitlint configuration. You can modify this file to fine-tune the example commit message generated by OpenAI. This gives you the flexibility to make adjustments based on your preferences or project guidelines.

OpenCommit generates a file named .opencommit-commitlint in your project directory which contains the prompts used for the local @commitlint configuration. You can modify this file to fine-tune the example commit message generated by OpenAI. If the local @commitlint configuration changes, this file will be updated the next time OpenCommit is run.

This offers you greater control over the generated commit messages, allowing for customization that aligns with your project's conventions.

Git flags

The opencommit or oco commands can be used in place of the git commit -m "${generatedMessage}" command. This means that any regular flags that are used with the git commit command will also be applied when using opencommit or oco.

`sh
oco --no-verify
`

is translated to :

`sh
git commit -m "${generatedMessage}" --no-verify
`

To include a message in the generated message, you can utilize the template function, for instance:

`sh
oco '#205: $msg’
`

> opencommit examines placeholders in the parameters, allowing you to append additional information before and after the placeholders, such as the relevant Issue or Pull Request. Similarly, you have the option to customize the OCO_MESSAGE_TEMPLATE_PLACEHOLDER configuration item, for example, simplifying it to $m!"

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#### Overview

The OCO_MESSAGE_TEMPLATE_PLACEHOLDER feature in the opencommit tool allows users to embed a custom message within the generated commit message using a template function. This configuration is designed to enhance the flexibility and customizability of commit messages, making it easier for users to include relevant information directly within their commits.

#### Implementation Details

In our codebase, the implementation of this feature can be found in the following segment:

`javascript
commitMessage = messageTemplate.replace(
config.OCO_MESSAGE_TEMPLATE_PLACEHOLDER,
commitMessage
);
`

This line is responsible for replacing the placeholder in the messageTemplate with the actual commitMessage.

#### Usage

For instance, using the command oco '$msg #205’, users can leverage this feature. The provided code represents the backend mechanics of such commands, ensuring that the placeholder is replaced with the appropriate commit message.

#### Committing with the Message

Once users have generated their desired commit message, they can proceed to commit using the generated message. By understanding the feature's full potential and its implementation details, users can confidently use the generated messages for their commits.

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You can remove files from being sent to OpenAI by creating a .opencommitignore file. For example:

`ignorelang
path/to/large-asset.zip
*/.jpg
`

This helps prevent opencommit from uploading artifacts and large files.

By default, opencommit ignores files matching: -lock. and *.lock

Git hook (KILLER FEATURE)

You can set OpenCommit as Git prepare-commit-msg hook. Hook integrates with your IDE Source Control and allows you to edit the message before committing.

To set the hook:

`sh
oco hook set
`

To unset the hook:

`sh
oco hook unset
`

To use the hook:

`sh
git add
git commit
`

Or follow the process of your IDE Source Control feature, when it calls git commit command — OpenCommit will integrate into the flow.

Setup OpenCommit as a GitHub Action (BETA) 🔥

OpenCommit is now available as a GitHub Action which automatically improves all new commits messages when you push to remote!

This is great if you want to make sure all commits in all of your repository branches are meaningful and not lame like fix1 or done2.

Create a file .github/workflows/opencommit.yml with the contents below:

`yml
name: 'OpenCommit Action'

on:
push:
# this list of branches is often enough,
# but you may still ignore other public branches
branches-ignore: [main master dev development release]

jobs:
opencommit:
timeout-minutes: 10
name: OpenCommit
runs-on: ubuntu-latest
permissions: write-all
steps:
- name: Setup Node.js Environment
uses: actions/setup-node@v2
with:
node-version: '16'
- uses: actions/checkout@v3
with:
fetch-depth: 0
- uses: di-sukharev/opencommit@github-action-v1.0.4
with:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

env:
# set openAI api key in repo actions secrets,
# for openAI keys go to: https://platform.openai.com/account/api-keys
# for repo secret go to: /settings/secrets/actions
OCO_API_KEY: ${{ secrets.OCO_API_KEY }}

# customization
OCO_TOKENS_MAX_INPUT: 4096
OCO_TOKENS_MAX_OUTPUT: 500
OCO_OPENAI_BASE_PATH: ''
OCO_DESCRIPTION: false
OCO_EMOJI: false
OCO_MODEL: gpt-4o
OCO_LANGUAGE: en
OCO_PROMPT_MODULE: conventional-commit
`

That is it. Now when you push to any branch in your repo — all NEW commits are being improved by your never-tired AI.

Make sure you exclude public collaboration branches (main, dev, etc) in branches-ignore, so OpenCommit does not rebase commits there while improving the messages.

Interactive rebase (rebase -i`) changes commits' SHA, so the commit history in remote becomes different from your local branch history. This is okay if you work on the branch alone, but may be inconvenient for other collaborators.

Payments

You pay for your requests to OpenAI API on your own.

OpenCommit stores your key locally.

OpenCommit by default uses 3.5-turbo model, it should not exceed $0.10 per casual working day.

You may switch to gpt-4, it's better, but more expensive.