Patch-porter NPM

patch-porter

A simple .pchtxt porting tool.

Usage

Install Node.js, then install patch-porter using npm:
```
npm install -g patch-porter
```
Port your pchtxt:
```
patch-porter --from=mainA --to=mainB --input=A.pchtxt --output=B.pchtxt
```
- --comment: Add ported address as comment to the output file
- --arch=arm64: Set the processor architecture for the NSO file (arm/arm64/none), default: arm64
Done!

Tips

Please keep @flag offset_shift ... in your pchtxt to help patch-porter finding the correct address
If your pchtxt doesn't have @flag offset_shift 0x100, it means that the addresses in your pchtxt are not based on the NSO header offset.\ In this case, you need to decompress your NSO file using hactool, and disable NSO mode in patch-porter (--no-nso).
```
hactool -t nso --uncompressed mainA.raw mainA
hactool -t nso --uncompressed mainB.raw mainB
patch-porter --from=mainA.raw --to=mainB.raw --input=A.pchtxt --output=B.pchtxt --no-nso
```
After porting, search for [x] in new pchtxt to find errors
patch-porter does not currently update the assembly code, so some patch may still need to be updated manually

Use in Node.js

import { promises as fs } from 'fs'
import { portPchtxt } from 'patch-porter'

let fileA = await fs.readFile('mainA')
let fileB = await fs.readFile('mainB')
let pchtxtA = await fs.readFile('A.pchtxt', 'utf8')

let pchtxtB = await portPchtxt(fileA, fileB, pchtxtA)

await fs.writeFile('B.pchtxt', pchtxtB)