Enigma directory mapping support

[Col-E]

Engima has the option to split mappings into a directory structure, modeling packages and each class as a file in those directories.

For instance: https://github.com/FabricMC/yarn/tree/1.20.4/mappings

We can let users pick a directory, merge all the files then use the existing engima mapping support

[zisis912]

This simple block of code below can recursively read a directory of mappings, and merge them all into one file for the user to import.

an easy temporary solution for anyone who needs this.

const fs = require("fs")

const files = fs.readdirSync("./yarn-1.20.4/mappings", { recursive: true }, (err) => {
    if (err) throw new Error("error reading directory: " + err)
})

console.log(files)

let contentArray = []

for (const file of files) {
    if (!file.endsWith(".mapping")) continue
    const content = fs.readFileSync("./yarn-1.20.4/mappings/" + file)
    contentArray.push(content)
}

// yarn mappings already have trailing newlines for some reason
let totalContent = contentArray.join("\n")

fs.writeFileSync("yarn-mappings-full.mapping", totalContent)