Snake

🐍 Snake, Yet Another Mach-O Unused ObjC Selector/Class/Protocol Detector.

ObjC Metadata * Classes ✔ * Protocols ✔ * Methods ✔ * Categories ✔ * Binding Info ✔ * ObjC-Specific Sections *

__objc_selrefs

__objc_superrefs

__objc_classrefs

__objc_classlist

__objc_catlist

__objc_protolist

See SnakeKit

Features

• [x] Parse Mach-O directly, no Symbols option required in Strip style of Build Settings, no depends on otool.
• [x] Unused selectors.
• [x] Unsued classes.
• [x] Unused protocols.
• [x] Duplicate selectors.
• [x] All classes.
• [x] Selector/Classes/Protocols sort by library, and selector size, if Linkmap file provided.
• [x] Fast, a 460.6M binary and a 134.3M linkmap file costs 1.62s(3.7 GHz 6-Core Intel Core i5;40 GB 2667 MHz DDR4).

Homebrew

brew tap flexih/tap && brew install snake

How To Use

Usage:
  snake [-dscp] [-l path] path/to/binary ...

  -s, --selector     Unused selectors
  -c, --class        Unused classes
  -p, --protocol     Unused protocoles
  -d, --duplicate    Duplicate selectors
  -a, --allclass     All Classes
  -l, --linkmap arg  Linkmap file, which has selector size, library name
  -j, --json         Output json format
      --help         Print help

snake -l path/to/linkmap path/to/binary [-dscpa]

Example

bin/snake -l demo/release/demo-LinkMap-normal-x86_64.txt demo/release/demo.app/demo -c ``` Total Lib Count: 1 Total Unused Class Count: 3

demo

SceneDelegate UnusedClass ViewController

bin/snake -l demo/release/demo-LinkMap-normal-x86\_64.txt demo/release/demo.app/demo -s

demo

@ UnusedClass -[UnusedClass unusedMethOfUnusedClass] 6

@ UsedClass -[UsedClass unusedMeth] 6 ```

Storyboard

Used selectors

python2 storyboard.py path/to/x.storyboard

Source

git clone --recursive https://github.com/flexih/Snake.git

Details

Objective-C二进制瘦身

Credits

• cxxopts