IDA plugin to decompile all functions at once to cache the result and avoid IDA's on-the-fly decompilation

hexrays_allthethings.py

# Installation: Copy hexrays_allthethings.py to the plugins/ directory of IDA, restart IDA
# Usage: Edit->Plugins->"Run Hex-Rays decompiler on all functions" or use Ctrl+9
# Tested in IDA 7.6, Python 3
# https://github.com/a0rtega

import ida_kernwin, ida_idaapi, ida_auto
import tempfile, os

class HexRaysAllTheThingsPlugin(ida_idaapi.plugin_t):
    flags = ida_idaapi.PLUGIN_KEEP
    comment = "Decompile all functions at once to cache the result and avoid IDA's on-the-fly decompilation"
    help = "Decompile all functions at once to cache the result and avoid IDA's on-the-fly decompilation"
    wanted_name = "Run Hex-Rays decompiler on all functions"
    wanted_hotkey = "Ctrl+9"

    def init(self):
        return ida_idaapi.PLUGIN_KEEP

    def run(self, arg):
        # Check ida_hexrays availability
        try:
            import ida_hexrays
            if not (ida_hexrays.init_hexrays_plugin()):
                raise Exception("ERROMG")
        except:
            ida_kernwin.warning("Hex-Rays is required to run this plugin")
            return

        confirm = ida_kernwin.ask_yn(0,
        "Do you want to decompile all the functions? This operation may take some time and will grow your IDB size.")
        if (confirm == ida_kernwin.ASKBTN_YES):
            ida_auto.auto_wait() # Wait for the initial autoanalysis to complete in case it's still running
            ida_hexrays.clear_cached_cfuncs()
            output_file = os.path.join(tempfile.gettempdir(), "HexRaysAllTheThingsPlugin.tmp")
            ida_hexrays.decompile_many(output_file, None,
                ida_hexrays.VDRUN_NEWFILE | ida_hexrays.VDRUN_MAYSTOP | ida_hexrays.VDRUN_SILENT)
            os.remove(output_file)

    def term(self):
        return

def PLUGIN_ENTRY():
    return HexRaysAllTheThingsPlugin()

Confirmed working on IDA Professional Version 9.0.240807 Windows x64