mcp_dump_method_descriptors.py

import sys
from pathlib import Path
import csv

if len(sys.argv) != 2:
    sys.exit(r'''Usage: {} MCP_CONF_DIR

Dumps every method name in an MCP mapping, in a format ready to use in Mixin
annotations.

MCP_CONF_DIR is the MCP directory, containing packaged.srg and methods.srg.

Example: {} "C:\Users\<You>\.gradle\caches\minecraft\net\minecraftforge\forge\1.7.10-10.13.4.1614-1.7.10\unpacked\conf"'''.format(sys.argv[0], sys.argv[0]))

confDir = Path(sys.argv[1])
packaged = [x.strip().split(' ') for x in open(confDir / "packaged.srg")]
methods = list(csv.reader(open(confDir / "methods.csv"), delimiter=',', quotechar='"'))
srg2deobf_method = dict([x[:2] for x in methods])

for packagedElem in packaged:
    if packagedElem[0] == "MD:":
        type, obfFull, obfDesc, srgFull, srgDesc = packagedElem
        lastSlash = srgFull.rindex('/')
        srgMethod = srgFull[(lastSlash + 1):]
        print("L{};{}{}".format(srgFull[:lastSlash], srg2deobf_method.get(srgMethod) or srgMethod, srgDesc))