jdd

Johnny Decimal Daemon

A background tool that watches a directory and automatically organizes files according to the Johnny Decimal system.

Features

• Watches a directory tree for new files.
• Moves files into the correct Johnny Decimal folders based on filename.
• Fully configurable via command line arguments, environment variables, or an optional YAML config file (.jd.yaml by default).
• Exclusion patterns and dry-run mode supported.
• Runs as a daemon or in the foreground (configurable).

Quick Start

You can run the daemon with just command line flags or environment variables. A config is not required.

Example: Run with command line flags

jdd --root ~/Documents --log-level debug --dry-run

Example: Run with environment variables

export JDD_ROOT=~/Documents
export JDD_LOG_LEVEL=info
jdd

Example: Run with a config file (optional)

Create a config file (e.g., .jd.yaml):

root: "." # Directory to watch (relative to config file location)
log_level: "info" # Log level: debug, info, warn, error
exclude:
  - ".git/**"
  - "tmp/**"
dry_run: false # If true, no files will be moved
daemonize: false # Run in foreground (set to true to daemonize)
delay: 1s # Duration to wait before processing new files

Then run:

jdd --config .jd.yaml

Or let it pick up the default .jd.yaml in the current directory.

Installation

Install with Nix

If you use Nix, you can install JDD with:

nix-shell -p jdd

Or add it to your environment:

nix-env -iA nixpkgs.jdd

Install with Go

If you have Go 1.17+ installed, you can install JDD directly from the command line:

go install github.com/mahyarmirrashed/jdd@latest

Pre-built Binaries

You can also download pre-built binaries from the GitHub Releases page.

Notes

• The config file is optional—all settings can be provided via CLI flags or environment variables.
• By default, the daemon watches the directory specified in root, resolved relative to the config file’s location (if used), or as given by the flag/env.
• Exclude patterns use glob syntax.
• Log output goes to jdd.log if daemonized, otherwise to stdout.