dony 0.1.6

Lightweight Python task runner that just gets it

🍥️ dony

A lightweight Python command runner with a simple, consistent workflow for managing project commands.

A Justfile alternative.

How it works

Define your commands in donyfiles/ in the root of your project.

import dony

@dony.command()
def hello_world():
    """Prints "Hello, World!" """
    dony.shell('echo "Hello, World!"')

Run dony to fuzzy-search your commands from anywhere in your project.

                                                                                                                                                                                                                   
  📝 squash_and_migrate                                                                                                                                                                                             
  📝 release                                                                                                                                                                                                        
▌ 📝 hello_world                                                                                                                                                                                                    
  3/3 ─────────────────────────────────────────────────────────────────── 
Select command 👆                                                                                                                                                                                                   
╭───────────────────────────────────────────────────────────────────────╮
│ Prints "Hello, World!"                                                │
│                                                                       │
│                                                                       │
╰───────────────────────────────────────────────────────────────────────╯

Or call them directly: dony <command_name> [--arg value].

Quick Start

1. Install Prerequisites: Python 3.8+, pipx, fzf

   For macOS, run

   brew install pipx
   brew install fzf 
   

2. Install dony:

   pipx install dony
   

3. cd into your project:

   cd my/project/path
   

4. Create donyfiles/ with a sample command and a uv environment:

   dony --init
   

5. Add your own commands under donyfiles/commands/.

6. Use:

   dony
   

Commands

import dony

@dony.command()
def greet(
    greeting: str = 'Hello',
    name: str = None
):
    name = name or dony.input('What is your name?')
    dony.shell(f"echo {greeting}, {name}!")

• Use the convenient shell wrapper dony.shell
• Use a bundle of useful user interaction functions, like input, confirm and press_any_key_to_continue
• Run commands without arguments – defaults are mandatory

Example

import re
import dony

@dony.command()
def squash_and_migrate(
    new_branch: str = None,
    commit_message: str = None,
):
    """Squashes current branch to main, checkouts to a new branch"""

    # - Get default branch if not set

    new_branch = (
            new_branch or f"workflow_{dony.shell('date +%Y%m%d_%H%M%S', quiet=True)}"
    )

    # - Get current branch

    original_branch = dony.shell(
        "git branch --show-current",
        quiet=True,
    )

    # - Get commit message from the user

    if not commit_message:
        while True:
            commit_message = dony.input(
                f"Enter commit message for merging branch {original_branch} to main:"
            )
            if bool(
                    re.match(
                        r"^(?:(?:feat|fix|docs|style|refactor|perf|test|chore|build|ci|revert)(?:\([A-Za-z0-9_-]+\))?(!)?:)\s.+$",
                        commit_message.splitlines()[0],
                    )
            ):
                break
            dony.print("Only conventional commits are allowed, try again")

    # - Squash and migrate

    dony.shell(
        f"""

        # - Make up to date

        git diff --cached --name-only | grep -q . && git stash squash_and_migrate-{new_branch}
        git checkout main
        git pull

        # - Merge

        git merge --squash {original_branch}
        git commit -m "{commit_message}"
        git push 

        # - Remove current branch

        git branch -D {original_branch}
        git push origin --delete {original_branch}

        # - Create new branch

        git checkout -b {new_branch}
        git push --set-upstream origin {new_branch}
    """,
    )

Use cases

• Build & Configuration
• Quality & Testing
• Release Management
• Deployment & Operations
• Documentation & Resources
• Git management

donyfiles/

donyfiles/
... (uv environment) 
├── commands/
│   ├── my_command.py # one command per file
│   ├── my-service/         
│   │   ├── service_command.py  # will be displayed as `my-service/service_command`
│   │   └── _helper.py       # non-command file

Things to know

• All commands run from the project root (where donyfiles/ is located)
• Available prompts based on questionary:
  • autocomplete: suggestion-driven input
  • confirm: yes/no ([Y/n] or [y/N])
  • error: ❌ error message
  • input: free-text entry
  • path: filesystem path entry
  • press_any_key_to_continue: pause until keypress
  • print: styled text output
  • select: option picker (supports multi & fuzzy)
  • success: ✅ success message
• dony enforces files to be named after functions and will rename them automatically when invoked

License

MIT License.

Author

Mark Lidenberg [e-mail]