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purge-wrangler.sh
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#!/bin/sh
# purge-wrangler.sh
# Author(s): Mayank Kumar (mayankk2308, github.com / mac_editor, egpu.io)
# License: Specified in LICENSE.md.
# Version: 6.2.0
# ----- ENVIRONMENT
# Script and options
(script="${BASH_SOURCE}"
option=""
single_user_mode="$(sysctl -n kern.singleuser)"
# Enable case-insensitive comparisons
shopt -s nocasematch
# Text management
bold="$(tput bold)"
normal="$(tput sgr0)"
underline="$(tput smul)"
# User interface artifacts
gap=" "
mark=">>"
# Script binary
local_bin="/usr/local/bin"
script_bin="${local_bin}/purge-wrangler"
tmp_script="${local_bin}/purge-wrangler-new"
is_bin_call=0
call_script_file=""
# Script version
script_major_ver="6" && script_minor_ver="2" && script_patch_ver="0"
script_ver="${script_major_ver}.${script_minor_ver}.${script_patch_ver}"
latest_script_data=""
latest_release_dwld=""
# Script preference plist
script_launchagent="io.egpu.purge-wrangler-agent"
# User userinput
userinput=""
# System information
macos_ver="$(sw_vers -productVersion)"
macos_build="$(sw_vers -buildVersion)"
system_thunderbolt_ver=""
# Thunderbolt patch references
hex_thunderboltswitchtype="494F5468756E646572626F6C74537769746368547970653"
hex_thunderboltcheck="4883C3174889DF31F631D2E8000000004883F803"
hex_thunderboltcheck_patch="4883C3174889DF31F631D2E8000000004883F800"
hex_selected_thunderbolt="${hex_thunderboltcheck}"
hex_selected_thunderbolt_patch="${hex_thunderboltcheck_patch}"
# NVIDIA patch references
hex_nvda_bypass="494F50434954756E6E656C6C6564"
hex_nvda_bypass_patch="494F50434954756E6E656C6C6571"
hex_nvda_clamshell="F0810D790A0300000200008B35730A0300"
hex_nvda_clamshell_patch="F0810D790A0300000000008B35730A0300"
# Ti82 patch references
hex_skipenum="554889E54157415641554154534881EC2801"
hex_skipenum_patch="554889E531C05DC341554154534881EC2801"
# Patch status indicators
amdlegacy_enabled=2
tbswitch_enabled=2
nvidia_enabled=2
binpatch_enabled=0
ti82_enabled=2
nvdawebdrv_patched=2
using_nvdawebdrv=0
# Supported GPU architectures
supported_amd_archs=("Polaris" "Vega" "Navi")
supported_nv_archs=("GK" "GF")
# General kext paths
sysextensions_path="/System/Library/Extensions/"
libextensions_path="/Library/Extensions/"
## AppleGPUWrangler
agc_kextpath="${sysextensions_path}AppleGraphicsControl.kext"
agc_binsubpath="/Contents/PlugIns/AppleGPUWrangler.kext/Contents/MacOS/AppleGPUWrangler"
agw_binpath="${agc_kextpath}${agc_binsubpath}"
## IONDRVSupport
iondrv_kextpath="${sysextensions_path}IONDRVSupport.kext"
iondrv_plistpath="${iondrv_kextpath}/Info.plist"
## IOGraphicsFamily
iog_kextpath="${sysextensions_path}IOGraphicsFamily.kext"
iog_subpath="/IOGraphicsFamily"
iog_binpath="${iog_kextpath}${iog_subpath}"
## IOThunderboltFamily
iotfam_kextpath="${sysextensions_path}IOThunderboltFamily.kext"
iotfam_binsubpath="/Contents/MacOS/IOThunderboltFamily"
iotfam_binpath="${iotfam_kextpath}${iotfam_binsubpath}"
## NVDAStartup
nvdastartup_kextpath="${sysextensions_path}NVDAStartup.kext"
nvdastartup_plistpath="${nvdastartup_kextpath}/Contents/Info.plist"
## NVDAStartupWeb
nvdastartupweb_kextpath="${libextensions_path}NVDAStartupWeb.kext"
nvdastartupweb_plistpath="${nvdastartupweb_kextpath}/Contents/Info.plist"
## NVDAEGPUSupport
deprecated_nvsolution_kextpath="${libextensions_path}NVDAEGPUSupport.kext"
## AMDLegacySupport
deprecated_automate_egpu_kextpath="${libextensions_path}automate-eGPU.kext"
amdlegacy_downloadurl="http://raw.githubusercontent.com/mayankk2308/purge-wrangler/${script_ver}/resources/AMDLegacySupport.kext.zip"
amdlegacy_downloadpath="${libextensions_path}AMDLegacySupport.kext.zip"
amdlegacy_kextpath="${libextensions_path}AMDLegacySupport.kext"
amdlegacy_integrity_hash="b64e399fa4d350b723170eb69780741c3f54af94570b995a201d70d540771500e67081b235c05deca95ad5e44cf1ba529766e47ff3b5f62eeb94161c80b0e29a"
# General backup path
support_dirpath="/Library/Application Support/Purge-Wrangler/"
backupkext_dirpath="${support_dirpath}Kexts/"
prompticon_downloadurl="http://raw.githubusercontent.com/mayankk2308/purge-wrangler/${script_ver}/resources/pw.png"
prompticon_filepath="${support_dirpath}pw.png"
prompticon_integrity_hash="28a86c463d184c19c666252a948148c24702990fc06d5b99e419c04efd6475324606263cf38c5a76be3f971c49aeecf89be61b1b8cbe68b73b33c69a903803c5"
## Deprecated manifest
manifest="${support_dirpath}manifest.wglr"
# Property Lists
pb="/usr/libexec/PlistBuddy"
webdriver_plistpath="/usr/local/bin/webdriver.plist"
scriptconfig_filepath="${support_dirpath}io.egpu.purge-wrangler.config.plist"
set_iognvda_pcitunnelled=":IOKitPersonalities:3:IOPCITunnelCompatible bool"
set_nvdastartup_pcitunnelled=":IOKitPersonalities:NVDAStartup:IOPCITunnelCompatible bool"
set_nvdastartup_requiredos=":IOKitPersonalities:NVDAStartup:NVDARequiredOS"
plist_defaultstring="<?xml version=\"1.0\" encoding=\"UTF-8\"?>
<!DOCTYPE plist PUBLIC \"-//Apple Computer//DTD PLIST 1.0//EN\" \"http://www.apple.com/DTDs/PropertyList-1.0.dtd\">
<plist version=\"1.0\">\n<dict>\n</dict>\n</plist>"
# --- SCRIPT HELPERs
## -- User Interface and Utilities
### Printf newline
printfn() {
printf '%b\n' "${@}"
}
### Clear print
printfc() {
printf "\033[2K\r"
printfn "${@}"
}
### Prompt for a yes/no action
yesno_action() {
local prompt="${1}"
local yesaction="${2}"
local noaction="${3}"
local no_newline="${4}"
[[ -z "${no_newline}" ]] && printfn
read -n1 -p "${prompt} [Y/N]: " userinput
printf "\033[2K\r"
[[ ${userinput} == "Y" ]] && eval "${yesaction}" && return
[[ ${userinput} == "N" ]] && eval "${noaction}" && return
printfn "Invalid choice. Please try again."
yesno_action "${prompt}" "${yesaction}" "${noaction}"
}
### Object downloader
obj_download() {
local url="${1}"
local dst="${2}"
local integrity_hash="${3}"
curl -qLs -o "${dst}" "${url}"
[[ "$(shasum -a 512 "${dst}" | awk '{ print $1 }')" != "${integrity_hash}" ]] && rm -rf "${dst}" 2>/dev/null 1>&2 || return 0
}
## -- Binary Patching Mechanism (P1 -> P2 -> P3)
### Optional: Check binary patchability
check_bin_patchability() {
local target_binary="${1}"
local find="${2}"
local dump="$(hexdump -ve '1/1 "%.2X"' "${target_binary}")"
[[ "${dump}" == *"${find}"* ]] && return 0 || return 1
}
### P1: Create hex representation for target binary
create_hexrepresentation() {
local target_binary="${1}"
local scratch_hex="${target_binary}.hex"
hexdump -ve '1/1 "%.2X"' "${target_binary}" > "${scratch_hex}"
}
### P2: Primary binary patching mechanism
patch_binary() {
local target_binary="${1}"
local find="${2}"
local replace="${3}"
local scratch_hex="${target_binary}.hex"
sed -i "" -e "s/${find}/${replace}/g" "${scratch_hex}" 2>/dev/null 1>&2
}
### P3: Generic binary generator for given hex file
create_patched_binary() {
local target_binary="${1}"
local scratch_hex="${target_binary}.hex"
local scratch_binary="${scratch_hex}.bin"
xxd -r -p "${scratch_hex}" "${scratch_binary}"
rm "${target_binary}" "${scratch_hex}" && mv "${scratch_binary}" "${target_binary}"
}
## -- PLIST Patching Mechanism
### Patch specified plist
modify_plist() {
local target_plist="${1}"
local command="${2}"
local key="${3}"
local value="${4}"
$pb -c "${command} ${key} ${value}" "${target_plist}" 2>/dev/null 1>&2
}
## -- Configuration Handling
### Generates a configuration property list if needed
generate_config() {
mkdir -p "${support_dirpath}"
[[ -f "${scriptconfig_filepath}" ]] && return
> "${scriptconfig_filepath}"
printfn "${plist_defaultstring}" >> "${scriptconfig_filepath}"
modify_plist "${scriptconfig_filepath}" "Add" ":OSVersionAtPatch string" "${macos_ver}"
modify_plist "${scriptconfig_filepath}" "Add" ":OSBuildAtPatch string" "${macos_build}"
modify_plist "${scriptconfig_filepath}" "Add" ":DidApplyBinPatch bool" "false"
modify_plist "${scriptconfig_filepath}" "Add" ":DidApplyPatchNVDAWebDrv bool" "false"
}
### Updates the configuration as necessary
update_config() {
generate_config
check_patch
local status=("false" "true" "false")
modify_plist "${scriptconfig_filepath}" "Set" ":OSVersionAtPatch" "${macos_ver}"
modify_plist "${scriptconfig_filepath}" "Set" ":OSBuildAtPatch" "${macos_build}"
modify_plist "${scriptconfig_filepath}" "Set" ":DidApplyBinPatch" "${status[${binpatch_enabled}]}"
modify_plist "${scriptconfig_filepath}" "Set" ":DidApplyPatchNVDAWebDrv" "${status[${nvdawebdrv_patched}]}"
}
### Deprecate manifest
deprecate_manifest() {
[[ ! -f "${manifest}" ]] && return
macos_ver="$(sed "3q;d" "${manifest}")"
macos_build="$(sed "4q;d" "${manifest}")"
local manifest_patch="$(sed -n "9,11p" "${manifest}")"
update_config
[[ ${manifest_patch} =~ 1 ]] && $pb -c "Set :DidApplyBinPatch true" "${scriptconfig_filepath}"
macos_ver="$(sw_vers -productVersion)"
macos_build="$(sw_vers -buildVersion)"
rm -f "${manifest}"
}
### Create LaunchAgent
create_launchagent() {
local agent_dirpath="/Users/${SUDO_USER}/Library/LaunchAgents/"
mkdir -p "${agent_dirpath}"
local agent_plistpath="${agent_dirpath}${script_launchagent}.plist"
> "${agent_plistpath}"
printfn "${plist_defaultstring}" >> "${agent_plistpath}"
$pb -c "Add :Label string ${script_launchagent}" "${agent_plistpath}"
$pb -c "Add :OnDemand bool false" "${agent_plistpath}"
$pb -c "Add :LaunchOnlyOnce bool true" "${agent_plistpath}"
$pb -c "Add :RunAtLoad bool true" "${agent_plistpath}"
$pb -c "Add :ProgramArguments array" "${agent_plistpath}"
$pb -c "Add :ProgramArguments:0 string ${script_bin}" "${agent_plistpath}"
$pb -c "Add :ProgramArguments:1 string -l" "${agent_plistpath}"
chown "${SUDO_USER}" "${agent_plistpath}"
obj_download "${prompticon_downloadurl}" "${prompticon_filepath}" "${prompticon_integrity_hash}"
su "${SUDO_USER}" -c "launchctl load -w \"${agent_plistpath}\""
}
# --- SCRIPT SOFTWARE UPDATE SYSTEM
### Perform software update
perform_software_update() {
printfn "${bold}Downloading...${normal}"
curl -qLs -o "${tmp_script}" "${latest_release_dwld}"
[[ "$(cat "${tmp_script}")" == "404: Not Found" ]] && printfn "Download failed.\n${bold}Continuing without updating...${normal}" && rm "${tmp_script}" && return
printfn "Download complete.\n${bold}Updating...${normal}"
chmod 700 "${tmp_script}" && chmod +x "${tmp_script}"
rm "${script}" && mv "${tmp_script}" "${script}"
chown "${SUDO_USER}" "${script}"
printfn "Update complete."
"${script}" "${option}"
exit 0
}
### Check Github for newer version + prompt update
fetch_latest_release() {
mkdir -p -m 775 "${local_bin}"
[[ "${is_bin_call}" == 0 ]] && return
latest_script_data="$(curl -q -s "https://api.github.com/repos/mayankk2308/purge-wrangler/releases/latest")"
latest_release_ver="$(printfn "${latest_script_data}" | grep '"tag_name":' | sed -E 's/.*"([^"]+)".*/\1/')"
latest_release_dwld="$(printfn "${latest_script_data}" | grep '"browser_download_url":' | sed -E 's/.*"([^"]+)".*/\1/')"
latest_major_ver="$(printfn "${latest_release_ver}" | cut -d '.' -f1)"
latest_minor_ver="$(printfn "${latest_release_ver}" | cut -d '.' -f2)"
latest_patch_ver="$(printfn "${latest_release_ver}" | cut -d '.' -f3)"
if [[ $latest_major_ver > $script_major_ver || ($latest_major_ver == $script_major_ver && $latest_minor_ver > $script_minor_ver)\
|| ($latest_major_ver == $script_major_ver && $latest_minor_ver == $script_minor_ver && $latest_patch_ver > $script_patch_ver) && ! -z "${latest_release_dwld}" ]]
then
printfn "${mark}${gap}${bold}Software Update${normal}\n\nSoftware updates are available.\n\nOn Your System ${bold}${script_ver}${normal}\nLatest Available ${bold}${latest_release_ver}${normal}\n"
perform_software_update
fi
}
# --- SYSTEM CONFIGURATION MANAGER
### Check caller
validate_caller() {
[[ -z "${script}" ]] && printfn "\n${bold}Cannot execute${normal}.\nPlease see the README for instructions.\n" && exit
[[ "${1}" != "${script}" ]] && option="${3}" || option="${2}"
[[ "${script}" == "${script_bin}" ]] && is_bin_call=1
}
### Elevate privileges
elevate_privileges() {
if [[ $(id -u) != 0 ]]
then
sudo /bin/sh "${script}" "${option}"
exit
fi
}
### System integrity protection check
check_sip() {
if [[ ! -z "$(csrutil status | grep -i enabled)" ]]
then
printfn "\nPlease disable ${bold}System Integrity Protection${normal}.\n"
exit
fi
}
### Check if system volume is writable
mount_attempt=0
check_sys_volume() {
if [[ ! -w "${sysextensions_path}" ]]
then
if [[ ${mount_attempt} == 0 ]]
then
mount -uw / 2>/dev/null 1>&2
mount_attempt=1
check_sys_volume
return
fi
printfn "\nYour system volume is ${bold}read-only${normal}. PurgeWrangler cannot proceed.\n"
exit
fi
}
### Old patch(es) selector
select_older_patches() {
is_10151_or_newer=0
hex_selected_thunderbolt="${hex_thunderboltswitchtype}3"
hex_selected_thunderbolt_patch="${system_thunderbolt_ver}"
}
### macOS compatibility check
check_macos_version() {
is_10151_or_newer=1
local macos_major_ver="$(printfn "${macos_ver}" | cut -d '.' -f2)"
local macos_minor_ver="$(printfn "${macos_ver}" | cut -d '.' -f3)"
[[ (${macos_major_ver} < 13) || (${macos_minor_ver} == 13 && ${macos_minor_ver} < 4) ]] && printfn "\n${bold}macOS 10.13.4 or later${normal} required.\n" && exit
[[ (${macos_major_ver} < 15) || (${macos_major_ver} == 15 && ${macos_minor_ver} < 1) ]] && select_older_patches
}
### Ensure presence of system extensions
check_sys_extensions() {
if [[ ! -s "${agc_kextpath}" || ! -s "${agw_binpath}" || ! -s "${iondrv_kextpath}" || ! -s "${iog_binpath}" || ! -s "${iotfam_kextpath}" || ! -s "${iotfam_binpath}" ]]
then
printfn "\nUnexpected system configuration or missing files."
yesno_action "${bold}Run Recovery?${normal}" "recover_sys" "exit"
printfn
exit
fi
}
### Retrieve thunderbolt version
retrieve_tb_ver() {
local tb_type="$(ioreg | grep AppleThunderboltNHIType)"
tb_type="${tb_type##*+-o AppleThunderboltNHIType}"
tb_type="${tb_type::1}"
system_thunderbolt_ver="${hex_thunderboltswitchtype}${tb_type}"
}
### Retrieve patch status
check_patch() {
binpatch_enabled=0
[[ ! -f "${agw_binpath}" || ! -f "${iog_binpath}" || ! -f "${iotfam_binpath}" ]] && return
local hex_agwbin="$(hexdump -ve '1/1 "%.2X"' "${agw_binpath}")"
local hex_iogbin="$(hexdump -ve '1/1 "%.2X"' "${iog_binpath}")"
local hex_iotfambin="$(hexdump -ve '1/1 "%.2X"' "${iotfam_binpath}")"
local nvdawebdrv_iopcitunnelcompat="$($pb -c "Print :IOKitPersonalities:NVDAStartup:IOPCITunnelCompatible" "${nvdastartupweb_plistpath}" 2>/dev/null)"
[[ ! -e "${nvdastartupweb_kextpath}" ]] && nvdawebdrv_patched=2 || nvdawebdrv_patched=0
[[ "${nvdawebdrv_iopcitunnelcompat}" == "true" ]] && nvdawebdrv_patched=1
[[ -d "${amdlegacy_kextpath}" ]] && amdlegacy_enabled=1 || amdlegacy_enabled=0
[[ "${hex_agwbin}" =~ "${hex_selected_thunderbolt_patch}" && "${system_thunderbolt_ver}" != "${hex_thunderboltswitchtype}"3 ]] && tbswitch_enabled=1 || tbswitch_enabled=0
[[ "${hex_iogbin}" =~ "${hex_nvda_bypass_patch}" ]] && nvidia_enabled=1 || nvidia_enabled=0
[[ "${hex_iotfambin}" =~ "${hex_skipenum_patch}" ]] && ti82_enabled=1 || ti82_enabled=0
[[ ${tbswitch_enabled} == "1" || ${ti82_enabled} == "1" || ${nvidia_enabled} == "1" ]] && binpatch_enabled=1
}
### Display patch statuses
check_patch_status() {
printfn "${mark}${gap}${bold}System Status${normal}\n"
local status=("Disabled" "Enabled" "Unknown")
local drv_status=("Clean" "Patched" "Absent")
printfn "${bold}Ti82 Devices${normal} ${status[${ti82_enabled}]}"
printfn "${bold}TB1/2 AMD eGPUs${normal} ${status[$tbswitch_enabled]}"
printfn "${bold}Legacy AMD eGPUs${normal} ${status[$amdlegacy_enabled]}"
printfn "${bold}NVIDIA eGPUs${normal} ${status[$nvidia_enabled]}"
printfn "${bold}Web Drivers${normal} ${drv_status[$nvdawebdrv_patched]}"
}
### Cumulative system check
perform_sys_check() {
check_sip
retrieve_tb_ver
check_macos_version
elevate_privileges
check_sys_volume
check_sys_extensions
check_patch
deprecate_manifest
using_nvdawebdrv=0
}
# ----- OS MANAGEMENT
### Sanitize system permissions and caches
sanitize_system() {
printfn "${bold}Sanitizing system...${normal}"
chmod -R 755 "${agc_kextpath}" "${iog_kextpath}" "${iondrv_kextpath}" "${nvdastartupweb_kextpath}" "${nvdastartup_kextpath}" "${amdlegacy_kextpath}" "${iotfam_kextpath}" 1>/dev/null 2>&1
chown -R root:wheel "${agc_kextpath}" "${iog_kextpath}" "${iondrv_kextpath}" "${nvdastartupweb_kextpath}" "${nvdastartup_kextpath}" "${amdlegacy_kextpath}" "${iotfam_kextpath}" 1>/dev/null 2>&1
kextcache -i / 1>/dev/null 2>&1
printfn "System sanitized."
}
# ----- BACKUP SYSTEM
### Primary procedure
execute_backup() {
mkdir -p "${backupkext_dirpath}"
rsync -rt "${agc_kextpath}" "${backupkext_dirpath}"
rsync -rt "${iog_kextpath}" "${backupkext_dirpath}"
rsync -rt "${iondrv_kextpath}" "${backupkext_dirpath}"
rsync -rt "${iotfam_kextpath}" "${backupkext_dirpath}"
rsync -rt "${nvdastartup_kextpath}" "${backupkext_dirpath}"
}
### Backup procedure
backup_system() {
printfn "${bold}Backing up...${normal}"
if [[ ! -z $(find "${backupkext_dirpath}" -mindepth 1 -print -quit 2>/dev/null) && -s "${scriptconfig_filepath}" ]]
then
local prev_macos_ver="$($pb -c "Print :OSVersionAtPatch" "${scriptconfig_filepath}")"
local prev_macos_build="$($pb -c "Print :OSBuildAtPatch" "${scriptconfig_filepath}")"
if [[ "${prev_macos_ver}" == "${macos_ver}" && "${prev_macos_build}" == "${macos_build}" ]]
then
if [[ ${binpatch_enabled} == 0 ]]
then
execute_backup
printfn "Backup refreshed."
update_config
return
fi
printfn "Backup already exists."
else
printfn "\n${bold}Last Backup${normal} ${prev_macos_ver} ${bold}[${prev_macos_build}]${normal}"
printfn "${bold}Current System${normal} ${macos_ver} ${bold}[${macos_build}]${normal}\n"
printfn "${bold}Updating backup...${normal}"
if [[ ${binpatch_enabled} == 1 ]]
then
printfn "${bold}Uninstalling patch(es) before updating backup...${normal}\n"
uninstall
fi
execute_backup
update_config
printfn "Update complete."
fi
else
execute_backup
update_config
printfn "Backup complete."
fi
}
# --- CORE PATCHWORK
### Run clean reboot
clean_reboot() {
osascript -e 'tell application "Finder" to restart' &
}
### Reboot prompt
reboot_action() {
[[ ${1} == -f ]] && printfn "${mark}${gap}${bold}Reboot${normal}"
yesno_action "${bold}Reboot Now?${normal}" "printfn \"${bold}Rebooting...
${normal}\" && clean_reboot && exit" "printfn \"Reboot aborted.\""
}
### Conclude patching sequence
end_binary_modifications() {
update_config
sanitize_system
[[ "${2}" == -no-agent ]] && rm -rf "/Users/${SUDO_USER}/Library/LaunchAgents/${script_launchagent}.plist" || create_launchagent
[[ ${single_user_mode} == 1 ]] && reboot 1>/dev/null 2>&1 && exit
local message="${1}"
printfn "${bold}${message}\n\n${bold}Reboot${normal} to apply changes."
reboot_action
}
### Install AMDLegacySupport.kext
install_amd_legacy_kext() {
[[ "${1}" == -end ]] && printfn "${mark}${gap}${bold}AMD Legacy Support${normal}\n"
[[ -d "${amdlegacy_kextpath}" ]] && printfn "${bold}AMDLegacySupport.kext${normal} already installed." && return
printfn "${bold}Downloading AMDLegacySupport...${normal}"
obj_download "${amdlegacy_downloadurl}" "${amdlegacy_downloadpath}" "${amdlegacy_integrity_hash}"
[[ ! -e "${amdlegacy_downloadpath}" ]] && printfn "Could not download." && return 0
printfn "Download complete."
[[ -d "${amdlegacy_kextpath}" ]] && rm -r "${amdlegacy_kextpath}"
unzip -d "${libextensions_path}" "${amdlegacy_downloadpath}" 1>/dev/null 2>&1
rm -r "${amdlegacy_downloadpath}" "${libextensions_path}/__MACOSX" 1>/dev/null 2>&1
if [[ "${1}" == -end ]]; then end_binary_modifications "Installation complete."; fi
}
### Enable Ti82
enable_ti82() {
[[ "${1}" == -end ]] && printfn "${mark}${gap}${bold}Enable Ti82 Support${normal}\n" && backup_system
[[ ${ti82_enabled} == 1 ]] && printfn "Ti82 support is already enabled on this system." && return
printfn "${bold}Enabling Ti82 support...${normal}"
check_bin_patchability "${iotfam_binpath}" "${hex_skipenum}"
[[ $? == 1 ]] && printfn "${bold}Unable to patch${normal} for Ti82 devices." && generate_sys_report && return 0
create_hexrepresentation "${iotfam_binpath}"
patch_binary "${iotfam_binpath}" "${hex_skipenum}" "${hex_skipenum_patch}"
create_patched_binary "${iotfam_binpath}"
printfn "Ti82 support enabled."
if [[ "${1}" == -end ]]; then end_binary_modifications "Patch complete."; fi
}
### Patch TB1/2 block
patch_tb() {
printfn "${bold}Patching for AMD eGPUs...${normal}"
[[ "${1}" == -prompt ]] && yesno_action "Enable ${bold}Legacy AMD Support${normal}?" "install_amd_legacy_kext && printfn" "printfn \"Skipping legacy kext.\n\""
[[ -e "${deprecated_automate_egpu_kextpath}" ]] && rm -r "${deprecated_automate_egpu_kextpath}"
[[ ${nvidia_enabled} == 1 ]] && printfn "System has previously been patched for ${bold}NVIDIA eGPUs${normal}." && return
[[ ${tbswitch_enabled} == 1 ]] && printfn "System has already been patched for ${bold}AMD eGPUs${normal}." && return
[[ "${system_thunderbolt_ver}" == "${hex_thunderboltswitchtype}3" ]] && printfn "No patch required for this Mac." && return
check_bin_patchability "${agw_binpath}" "${hex_selected_thunderbolt}"
[[ $? == 1 ]] && printfn "${bold}Unable to patch${normal} for TB1/2 AMD eGPUs." && generate_sys_report && return 0
create_hexrepresentation "${agw_binpath}"
patch_binary "${agw_binpath}" "${hex_selected_thunderbolt}" "${hex_selected_thunderbolt_patch}"
create_patched_binary "${agw_binpath}"
printfn "Patches applied."
}
### Download and install NVIDIA Web Drivers
install_web_drivers() {
local installerpkg_path="/usr/local/NVDAInstall.pkg"
local installerpkgexpanded_path="/usr/local/NVDAInstall"
local nvdadrv_ver="${1}"
local nvdadrv_downloadurl="${2}"
rm -r "${installerpkgexpanded_path}" "${installerpkg_path}" 2>/dev/null 1>&2
printfn "${bold}Downloading drivers (${nvdadrv_ver})...${normal}"
curl -q --connect-timeout 15 --progress-bar -o "${installerpkg_path}" "${nvdadrv_downloadurl}"
if [[ ! -s "${installerpkg_path}" ]]
then
rm -r "${installerpkg_path}" 2>/dev/null 1>&2
printfn "Unable to download."
return
fi
printfn "Download complete.\n${bold}Sanitizing package...${normal}"
pkgutil --expand-full "${installerpkg_path}" "${installerpkgexpanded_path}"
sed -i "" -e "/installation-check/d" "${installerpkgexpanded_path}/Distribution"
local nvdastartup_pkgkextpath="$(find "${installerpkgexpanded_path}" -maxdepth 1 | grep -i NVWebDrivers)/Payload/Library/Extensions/NVDAStartupWeb.kext"
if [[ ! -d "${nvdastartup_pkgkextpath}" ]]
then
rm -r "${installerpkg_path}" "${installerpkgexpanded_path}" 2>/dev/null 1>&2
printfn "Unable to patch driver."
return
fi
$pb -c "Set ${set_nvdastartup_requiredos} \"${macos_build}\"" "${nvdastartup_pkgkextpath}/Contents/Info.plist" 2>/dev/null 1>&2
chown -R root:wheel "${nvdastartup_pkgkextpath}"
rm -r "${installerpkg_path}"
pkgutil --flatten-full "${installerpkgexpanded_path}" "${installerpkg_path}" 2>/dev/null 1>&2
printfn "Package sanitized.\n${bold}Installing...${normal}"
local installer_err="$(installer -target "/" -pkg "${installerpkg_path}" 2>&1 1>/dev/null)"
[[ -e "${nvdastartupweb_kextpath}" ]] && printfn "Installation complete." || printfn "Installation failed."
rm -r "${installerpkg_path}" "${installerpkgexpanded_path}"
rm "${webdriver_plistpath}"
}
### Reset webdriver data
reset_nvdawebdrv_stats() {
nvdawebdrv_lastcompatible_ver=""
nvdawebdrv_lastcompatible_downloadurl=""
nvdawebdrv_latest_ver=""
nvdawebdrv_latest_macosbuild=""
nvdawebdrv_latest_downloadurl=""
nvdawebdrv_alreadypresentos=""
nvdawebdrv_target_ver=""
nvdawebdrv_target_downloadurl=""
nvdawebdrv_canpatchlatest=3
}
### Populate webdriver data
get_nvdawebdrv_stats() {
reset_nvdawebdrv_stats
nvdawebdrv_target_ver="${1}"
printfn "${bold}Fetching driver information...${normal}"
[[ -f "${nvdastartupweb_plistpath}" ]] && nvdawebdrv_alreadypresentos="$(${pb} -c "Print ${set_nvdastartup_requiredos}" "${nvdastartupweb_plistpath}" 2>/dev/null)"
local webdriver_data="$(curl -q -s "https://gfe.nvidia.com/mac-update")"
[[ -z "${webdriver_data}" ]] && return
printfn "${webdriver_data}" > "${webdriver_plistpath}"
local index=0
local current_macos_build="${macos_build}"
local currentdriver_downloadurl=""
local currentdriver_ver=""
while [[ ! -z "${current_macos_build}" ]]
do
currentdriver_downloadurl="$($pb -c "Print :updates:${index}:downloadURL" "${webdriver_plistpath}" 2>/dev/null)"
currentdriver_ver="$($pb -c "Print :updates:${index}:version" "${webdriver_plistpath}" 2>/dev/null)"
current_macos_build="$($pb -c "Print :updates:${index}:OS" "${webdriver_plistpath}" 2>/dev/null)"
if [[ ! -z "${currentdriver_ver}" && "${nvdawebdrv_target_ver}" == "${currentdriver_ver}" ]]
then
nvdawebdrv_target_ver="${currentdriver_ver}"
nvdawebdrv_target_downloadurl="${currentdriver_downloadurl}"
return
fi
if [[ ${index} == 0 ]]
then
nvdawebdrv_latest_downloadurl="${currentdriver_downloadurl}"
nvdawebdrv_latest_ver="${currentdriver_ver}"
nvdawebdrv_latest_macosbuild="${current_macos_build}"
fi
[[ "${current_macos_build}" == "${macos_build}" ]] && break
(( index++ ))
done
if [[ -z "${currentdriver_downloadurl}" || -z "${currentdriver_ver}" ]]
then
local currentdriver_majormacosbuild="${nvdawebdrv_latest_macosbuild:0:2}"
local macos_major_build="${macos_build:0:2}"
(( ${currentdriver_majormacosbuild} - ${macos_major_build} != 0 )) && nvdawebdrv_canpatchlatest=2 || nvdawebdrv_canpatchlatest=1
else
nvdawebdrv_canpatchlatest=0
nvdawebdrv_lastcompatible_ver="${currentdriver_ver}"
nvdawebdrv_lastcompatible_downloadurl="${currentdriver_downloadurl}"
fi
printfn "Information fetched."
}
### Patch NVIDIA Web Driver version
patch_nvdawebdrv_version() {
printfn "${bold}Patching drivers...${normal}"
$pb -c "Set ${set_nvdastartup_requiredos} \"${macos_build}\"" "${nvdastartupweb_plistpath}" 2>/dev/null 1>&2
printfn "Drivers patched."
}
### Current webdriver possibilities
webdriver_possibilities() {
if [[ "${3}" == -already-present ]]
then
[[ "${nvdawebdrv_alreadypresentos}" == "${macos_build}" ]] && printfn "Appropriate NVIDIA Web Drivers are ${bold}already installed${normal}." && return
printfn "Installed ${bold}NVIDIA Web Drivers${normal} are specifying incorrect macOS build."
[[ "${4}" != "-prompt" ]] && printfn "${bold}Resolving...${normal}" && patch_nvdawebdrv_version 1>/dev/null && printfn "Resolved." && return
yesno_action "${bold}Attempt to Rectify${normal}?" "patch_nvdawebdrv_version" "printfn \"Drivers unchanged.\n\""
else
local recommendation=("Not Required" "Suggested" "Not Advised" "Cannot Determine")
printfn "\nWeb drivers will require patching.\n${bold}Patch Recommendation${normal}: ${recommendation[${nvdawebdrv_canpatchlatest}]}"
yesno_action "${bold}Patch?${normal}" "install_web_drivers \"${1}\" \"${2}\"" "printfn \"Installation aborted.\n\" && return"
fi
}
### Run Webdriver installation procedure
run_webdriver_installer() {
get_nvdawebdrv_stats
[[ ! -z "${nvdawebdrv_alreadypresentos}" ]] && webdriver_possibilities "" "" "-already-present" "${1}" && return
case ${nvdawebdrv_canpatchlatest} in
0)
install_web_drivers "${nvdawebdrv_lastcompatible_ver}" "${nvdawebdrv_lastcompatible_downloadurl}";;
1)
[[ "${1}" == -prompt ]] && webdriver_possibilities "${nvdawebdrv_latest_ver}" "${nvdawebdrv_latest_downloadurl}" && return
install_web_drivers "${nvdawebdrv_latest_ver}" "${nvdawebdrv_latest_downloadurl}";;
2|3)
[[ "${1}" == -prompt ]] && webdriver_possibilities "${nvdawebdrv_latest_ver}" "${nvdawebdrv_latest_downloadurl}" && return
printfn "No compatible or suitably patchable NVIDIA driver available.";;
esac
}
### Install specified version of Web Drivers
install_ver_spec_webdrv() {
printfn "${mark}${gap}${bold}Install NVIDIA Web Drivers${normal}\n"
printfn "Specify a ${bold}Webdriver version${normal} to install (${bold}L = Latest${normal}).\nExisting drivers will be overwritten.\n${bold}Example${normal}: 387.10.10.10.25.161\n"
read -p "${bold}Version${normal} [L|Q]: " userinput
printfn
[[ -z "${userinput}" || "${userinput}" == Q ]] && printfn "No changes made." && return
get_nvdawebdrv_stats "${userinput}"
[[ "${userinput}" != "L" && -z "${nvdawebdrv_target_downloadurl}" ]] && printfn "No driver found for specified version." && return
[[ "${userinput}" != "L" ]] && install_web_drivers "${nvdawebdrv_target_ver}" "${nvdawebdrv_target_downloadurl}" || install_web_drivers "${nvdawebdrv_latest_ver}" "${nvdawebdrv_latest_downloadurl}"
using_nvdawebdrv=1
}
### Run NVIDIA eGPU patcher
run_patch_nv() {
if [[ "${1}" == -prompt ]]
then
[[ -f "${nvdastartupweb_plistpath}" ]] && nvdawebdrv_alreadypresentos="$(${pb} -c "Print ${set_nvdastartup_requiredos}" "${nvdastartupweb_plistpath}" 2>/dev/null)"
if [[ ! -z "${nvdawebdrv_alreadypresentos}" ]]
then
webdriver_possibilities "" "" "-already-present" "-prompt"
using_nvdawebdrv=1
else
yesno_action "Install ${bold}NVIDIA Web Drivers${normal}?" "using_nvdawebdrv=1 && run_webdriver_installer -prompt" "printfn \"Skipping web drivers.\n\""
fi
fi
local nvdastartupplist_topatch="${nvdastartupweb_plistpath}"
if (( ${using_nvdawebdrv} == 1 ))
then
[[ ! -f "${nvdastartupweb_plistpath}" ]] && printfn "${bold}NVIDIA Web Drivers${normal} required, but not installed." && return
nvram nvda_drv=1
else
nvram -d nvda_drv 2>/dev/null
nvdastartupplist_topatch="${nvdastartup_plistpath}"
fi
check_bin_patchability "${agw_binpath}" "${hex_nvda_bypass}"
local pass=$?
check_bin_patchability "${iog_binpath}" "${hex_nvda_bypass}"
pass=$(( ${pass} + $? ))
(( ${pass} != 0 )) && printfn "${bold}Unable to patch${normal} for NVIDIA eGPUs." && generate_sys_report && return 0
create_hexrepresentation "${agw_binpath}"
create_hexrepresentation "${iog_binpath}"
patch_binary "${agw_binpath}" "${hex_nvda_bypass}" "${hex_nvda_bypass_patch}"
patch_binary "${iog_binpath}" "${hex_nvda_bypass}" "${hex_nvda_bypass_patch}"
create_patched_binary "${agw_binpath}"
create_patched_binary "${iog_binpath}"
modify_plist "${iondrv_plistpath}" "Add" "${set_iognvda_pcitunnelled}" "true"
modify_plist "${nvdastartupplist_topatch}" "Add" "${set_nvdastartup_pcitunnelled}" "true"
rm -r "${deprecated_automate_egpu_kextpath}" 2>/dev/null 1>&2
rm -r "${deprecated_nvsolution_kextpath}" 2>/dev/null 1>&2
printfn "Patches applied."
}
### Patch for NVIDIA eGPUs
patch_nv() {
printfn "${bold}Patching for NVIDIA eGPUs...${normal}"
[[ -e "${nvdastartupweb_kextpath}" && ${nvdawebdrv_patched} == 0 ]] && run_patch_nv "${1}" && return
[[ ${nvidia_enabled} == 1 ]] && printfn "System has already been patched for ${bold}NVIDIA eGPUs${normal}." && return
[[ ${tbswitch_enabled} == 1 ]] && printfn "System has previously been patched for ${bold}AMD eGPUs${normal}." && return
run_patch_nv "${1}"
}
# Run webdriver uninstallation process
run_webdriver_uninstaller() {
nvram -d nvda_drv
local webdriver_uninstaller="/Library/PreferencePanes/NVIDIA Driver Manager.prefPane/Contents/MacOS/NVIDIA Web Driver Uninstaller.app/Contents/Resources/NVUninstall.pkg"
[[ ! -s "${webdriver_uninstaller}" ]] && return
printfn "${bold}Uninstalling NVIDIA drivers...${normal}"
installer -target "/" -pkg "${webdriver_uninstaller}" 2>&1 1>/dev/null
[[ ${single_user_mode} == 0 ]] && printfn "Drivers Uninstalled." || printfn "Drivers deactivated."
}
### Retrieve GPU name
get_gpu_name() {
local id="${1}"
local vendor="${2}"
local device_names="$(curl -s "http://pci-ids.ucw.cz/read/PC/${vendor}/${id}" | grep -i "itemname" | sed -E "s/.*Name\: (.*)$/\1/")"
local device_name="$(printfn "${device_names}" | tail -1 | cut -d '[' -f2)"
local egpu_arch="$(printfn "${device_names}" | tail -1 | cut -d '[' -f1)"
if [[ ! -z "${device_name}" ]]
then
printfn "${device_name%?}:${egpu_arch}"
else
[[ ${vendor} == "10de" ]] && printfn "NVIDIA"
[[ ${vendor} == "1002" ]] && printfn "AMD"
fi
}
### Retrieve eGPU data
retrieve_egpu_data() {
egpu_vendor=$(printfn "${ioreg_info}" | grep \"vendor-id\" | cut -d "=" -f2 | sed 's/ <//' | sed 's/>//' | cut -c1-4 | sed -E 's/^(.{2})(.{2}).*$/\2\1/')
egpu_dev_id=$(printfn "${ioreg_info}" | grep \"device-id\" | cut -d "=" -f2 | sed 's/ <//' | sed 's/>//' | cut -c1-4 | sed -E 's/^(.{2})(.{2}).*$/\2\1/')
}
### Retrieve Ti82 need
get_ti82_need() {
local ti82_data="$(system_profiler SPThunderboltDataType 2>/dev/null | grep -i unsupported)"
[[ -z ${ti82_data} ]] && printfn "No" || printfn "Yes"
}
### Detect eGPU
detect_egpu() {
printfn "${bold}Plug-in eGPU${normal}. Press ESC if you are not plugging in eGPU.\n"
egpu_vendor=""
egpu_dev_id=""
IFS=''
for (( i = 20; i > 0; i-- ))
do
printf "\033[2K\r"
printf "${bold}Detecting eGPU (${i})...${normal}"
needs_ti82="$(get_ti82_need)"
[[ "${needs_ti82}" == "Yes" ]] && printfc "Detection not possible. Ti82 override needed first." && return
ioreg_info="$(ioreg -n display@0)"
retrieve_egpu_data
local key=""
read -r -s -n 1 -t 1 key
if [[ ! -z "${egpu_vendor}" ]]
then
legacy_amd_needed=1
webdrv_needed=1
local name_data="$(get_gpu_name "${egpu_dev_id}" "${egpu_vendor}")"
local egpu_name="$(printfn "${name_data}" | cut -d ":" -f1)"
egpu_arch="$(printfn "${name_data}" | cut -d ":" -f2)"
for arch in "${supported_amd_archs[@]}"; do
if [[ "${egpu_arch}" =~ "${arch}" ]]; then
legacy_amd_needed=0
break
fi
done
for arch in "${supported_nv_archs[@]}"; do
if [[ "${egpu_arch}" =~ "${arch}" ]]; then
webdrv_needed=0
break
fi
done
printfc "${bold}External GPU${normal}\t${egpu_name}"
printfn "${bold}GPU Arch${normal}\t${egpu_arch}"
printfn "${bold}Thunderbolt${normal}\t${system_thunderbolt_ver: -1}"
return
fi
[[ "${key}" == $'\e' ]] && printfc "eGPU detection skipped. Please provide more information." && return
done
printfc "Detection failed. Please provide more information."
}
### Manual eGPU setup
manual_setup_egpu() {
[[ "${needs_ti82}" == "No" ]] && yesno_action "${bold}Enable Ti82${normal}?" "enable_ti82 && printfn" "printfn \"Skipping Ti82 support.\n\"" -n
local menu_items=("AMD" "NVIDIA" "Cancel")
local menu_actions=("patch_tb -prompt" "patch_nv -prompt" "printfn \"Further patching aborted.\"")
generate_menu "eGPU Vendor" "0" "-1" "0" "${menu_items[@]}"
autoprocess_input "Choice" "" "" "false" "${menu_actions[@]}"
}
### Automatic eGPU setup
auto_setup_egpu() {
printfn "${mark}${gap}${bold}Setup eGPU${normal}\n"
[[ ${binpatch_enabled} == "1" || ${amdlegacy_enabled} == "1" ]] && printfn "System has previously been modified. Uninstall first." && return
detect_egpu
printfn
backup_system
printfn
[[ ${needs_ti82} == "Yes" ]] && enable_ti82 && printfn
if [[ "${egpu_vendor}" == "1002" ]]
then
if [[ "${egpu_arch}" =~ "Navi" && ${is_10151_or_newer} != 1 ]]; then
printfn "${bold}Navi${normal} eGPUs require ${bold}macOS 10.15.1${normal} or later."
else
[[ ${legacy_amd_needed} == 1 ]] && install_amd_legacy_kext && printfn
patch_tb
fi
elif [[ "${egpu_vendor}" == "10de" ]]
then
[[ ${webdrv_needed} == 1 ]] && run_webdriver_installer && using_nvdawebdrv=1 && printfn
patch_nv
else
manual_setup_egpu
fi
check_patch
[[ ${binpatch_enabled} != "1" && ${amdlegacy_enabled} != "1" ]] && return
printfn
print_anomalies
printfn
end_binary_modifications "Modifications complete."
}
### In-place re-patcher
uninstall() {
printfn "${mark}${gap}${bold}Uninstall${normal}\n"
[[ ${amdlegacy_enabled} == "0" && ${binpatch_enabled} == "0" && ! -e "${nvdastartupweb_kextpath}" ]] && printfn "No patches detected.\n${bold}System already clean.${normal}" && return
printfn "${bold}Uninstalling...${normal}"
[[ -d "${amdlegacy_kextpath}" ]] && rm -r "${amdlegacy_kextpath}"
[[ -e "${nvdastartupweb_kextpath}" ]] && yesno_action "Remove ${bold}NVIDIA Web Drivers${normal}?" "run_webdriver_uninstaller" "printfn \"Skipping web drivers.\n\""
printfn "${bold}Reverting binaries...${normal}"
if [[ ${ti82_enabled} == 1 ]]
then
create_hexrepresentation "${iotfam_binpath}"
patch_binary "${iotfam_binpath}" "${hex_skipenum_patch}" "${hex_skipenum}"
create_patched_binary "${iotfam_binpath}"
fi
create_hexrepresentation "${agw_binpath}"
[[ ${tbswitch_enabled} == 1 ]] && patch_binary "${agw_binpath}" "${hex_selected_thunderbolt_patch}" "${hex_selected_thunderbolt}"
if [[ ${nvidia_enabled} == 1 ]]
then
create_hexrepresentation "${iog_binpath}"
patch_binary "${iog_binpath}" "${hex_nvda_bypass_patch}" "${hex_nvda_bypass}"
patch_binary "${iog_binpath}" "${hex_nvda_clamshell_patch}" "${hex_nvda_clamshell}"
patch_binary "${agw_binpath}" "${hex_nvda_bypass_patch}" "${hex_nvda_bypass}"
create_patched_binary "${iog_binpath}"
modify_plist "${nvdastartupweb_plistpath}" "Delete" "${set_nvdastartup_pcitunnelled}"
modify_plist "${nvdastartup_plistpath}" "Delete" "${set_nvdastartup_pcitunnelled}"
modify_plist "${iondrv_plistpath}" "Delete" "${set_iognvda_pcitunnelled}"
fi
create_patched_binary "${agw_binpath}"
printfn "Binaries reverted."
end_binary_modifications "Uninstallation Complete." -no-agent
}
# ----- BINARY MANAGER
### Binary first-time setup
first_time_setup() {
[[ $is_bin_call == 1 ]] && return
script_sha="$(shasum -a 512 -b "${script}" | awk '{ print $1 }')"
bin_sha=""
[[ -s "${script_bin}" ]] && bin_sha="$(shasum -a 512 -b "${script_bin}" | awk '{ print $1 }')"
[[ "${bin_sha}" == "${script_sha}" ]] && return
rsync "${script}" "${script_bin}"
chown "${SUDO_USER}" "${script_bin}"
chmod 755 "${script_bin}"
}
# --- RECOVERY SYSTEM
### Perform recovery
perform_recovery() {
printfn "${bold}Recovering...${normal}"
rsync -rt "${backupkext_dirpath}"* "${sysextensions_path}"
modify_plist "${nvdastartup_plistpath}" "Delete" "${set_nvdastartup_pcitunnelled}"
modify_plist "${nvdastartupweb_plistpath}" "Delete" "${set_nvdastartup_pcitunnelled}"
run_webdriver_uninstaller
printfn "System restored."
end_binary_modifications "Recovery complete." -no-agent
}
### Recovery logic
recover_sys() {
printfn "${mark}${gap}${bold}Recovery${normal}\n"
[[ -d "${amdlegacy_kextpath}" ]] && rm -r "${amdlegacy_kextpath}"
[[ ! -e "${scriptconfig_filepath}" || ! -d "${backupkext_dirpath}" ]] && printfn "Nothing to recover." && return
local prev_macos_ver="$($pb -c "Print :OSVersionAtPatch" "${scriptconfig_filepath}")"
local prev_macos_build="$($pb -c "Print :OSBuildAtPatch" "${scriptconfig_filepath}")"
if [[ "${prev_macos_ver}" != "${macos_ver}" || "${prev_macos_build}" != "${macos_build}" ]]
then
printfn "\n${bold}Last Backup${normal} ${prev_macos_ver} ${bold}[${prev_macos_build}]${normal}"
printfn "${bold}Current System${normal} ${macos_ver} ${bold}[${macos_build}]${normal}\n"
printfn "OS version ${bold}discrepancy${normal} detected with kext backup. macOS Recovery recommended instead."
yesno_action "Still ${bold}perform recovery${normal}?" "perform_recovery" "printfn \"Recovery aborted.\""
else
perform_recovery
fi
}
# ----- ANOMALY MANAGER
### Detect discrete GPU vendor
detect_discrete_gpu_vendor() {
local dgpu_ioreg="$(ioreg -n GFX0@0)"
dgpu_vendor="$(printfn "${dgpu_ioreg}" | grep \"vendor-id\" | cut -d "=" -f2 | sed 's/ <//' | sed 's/>//' | cut -c1-4 | sed -E 's/^(.{2})(.{2}).*$/\2\1/')"
dgpu_dev_id="$(printfn "${dgpu_ioreg}" | grep \"device-id\" | cut -d "=" -f2 | sed 's/ <//' | sed 's/>//' | cut -c1-4 | sed -E 's/^(.{2})(.{2}).*$/\2\1/')"
}
### Detect Mac Model
detect_mac_model() {
local model_id="$(system_profiler SPHardwareDataType 2>/dev/null | awk '/Model Identifier/ {print $3}')"
[[ "${model_id}" == *"MacBook"* ]] && is_desktop_mac=0 || is_desktop_mac=1
}
### Compute anomaly states
anomaly_states() {
detect_mac_model
detect_discrete_gpu_vendor
resolution_needed=0
[[ ${is_desktop_mac} == 1 ]] && resolution_needed="-1" && return
if [[ "${dgpu_vendor}" == "10de" ]]
then
[[ -f "${nvdastartupweb_plistpath}" && ${nvidia_enabled} == 1 ]] && resolution_needed=1 && return
[[ ${tbswitch_enabled} == 1 ]] && resolution_needed=2 && return
elif [[ "${dgpu_vendor}" == "1002" ]]
then
[[ ${nvidia_enabled} == 1 ]] && resolution_needed=3 && return
fi
}
### Print anomalies, if any
print_anomalies() {
printfn "${bold}Analyzing system...${normal}"
anomaly_states
case "${resolution_needed}" in