depp

Depp - A fast unused and duplicate package checker

Installation

npm install -g depp-installer (will try to get npm install -g depp later)

Usage

Just run depp in your project folder and it will do the rest. Keep in mind it will likely fail without setting some externals

Note if you want it to work with JS please use -j or --js by default it will do only .ts|.tsx files

All options

➜ depp --help
NAME:
   depp - Find un used packages fast

USAGE:
   depp [global options] command [command options] [arguments...]

COMMANDS:
   clean    Cleans all output files
   show     Shows previous report
   help, h  Shows a list of commands or help for one command

GLOBAL OPTIONS:
   --dev, -d                             Enable dev dependencies (default: false)
   --js, -j                              Enable js source files (default: false)
   --path value, -p value                Overwrite root directory
   --log, -l                             Will write logs to .depcheck.log (default: false)
   --source value, -s value              Overwrite default sources
   --report, -r                          Generate report file (default: false)
   --show-versions, -v                   Show conflicting versions (default: false)
   --write-output-files, -w              This will write the esbuild output files. (default: false)
   --externals value, -e value           Pass custom externals using this flag
   --ignore-namespace value, --in value  Pass namespace (@monorepo) to be ignored
   --help, -h                            show help (default: false)

Example Advanced usage

This is an example of advanced usage of the script with externals and ignore-namespace

depp -v -j -e mobx -e magic-sdk -e domain -e @daybrush/utils -e yjs -e constants -e ws  -e perf_hooks -in @editor -in @server   --report

Why use this

1. It is using esbuild and go so it is quite a bit faster than most other tools
2. Most tools that I could find at least, didn't not support monorepos. This does and is built for monorepos

Caveats

This is not been extensively tested and might have some short comings, it may not identify every unused package but will definitely do a decent first pass

Acknowledgement

This is built upon the excellent work down by @evanw on esbuild and uses esbuild under the hood