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server-kernel/buildtool.sh

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#!/bin/bash
set -eo pipefail
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# Set language to C.UTF-8 (for easier debugging)
export "LANG=C.UTF-8"
export "LC_MESSAGES=${LANG}"
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# Variables
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export "BUILDTOOL_ISSUETRACKER=https://git.staropensource.de/JeremyStarTM/kernel-optimized/issues"
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## Cloning (update these if you fork this project)
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export "BUILDTOOL_REPOSITORY=https://git.staropensource.de/JeremyStarTM/kernel-optimized.git"
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export "BUILDTOOL_CLONEDIR=jstm-kernel-optimized"
## Base packages to install, packages will be added by questions
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export "BUILDTOOL_PACKAGES=base-devel git rustup"
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## Building command line stuff
export "BUILDTOOL_BUILDCMDLINE=nice -20 env MAKEFLAGS=-j$(nproc)"
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## OOOOoooo colors! (not true color tho)
export "BUILDTOOL_COLOR_SPECIAL=\e[0;35m"
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export "BUILDTOOL_COLOR_DIAG=\e[0;36m"
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export "BUILDTOOL_COLOR_WARN=\e[0;33m"
export "BUILDTOOL_COLOR_ERROR=\e[0;31m"
export "BUILDTOOL_COLOR_RESET=\e[0m"
# Logging
## Empty
function empty() {
echo ""
}
## Special
function special() {
echo -e "${BUILDTOOL_COLOR_SPECIAL}${*}${BUILDTOOL_COLOR_RESET}"
}
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## Diagnostic (header)
function diagh() {
if [ -z "${BUILDTOOL_DEBUG}" ]; then return; fi
echo -e "${BUILDTOOL_COLOR_DIAG}[DIAG] ${*}${BUILDTOOL_COLOR_RESET}"
}
## Diagnostic (extension)
function diage() {
if [ -z "${BUILDTOOL_DEBUG}" ]; then return; fi
echo -e "${BUILDTOOL_COLOR_DIAG} ${*}${BUILDTOOL_COLOR_RESET}"
}
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## Informational (header)
function infoh() {
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echo -e "${BUILDTOOL_COLOR_RESET}[INFO] ${*}"
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}
## Informational (extension)
function infoe() {
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echo -e "${BUILDTOOL_COLOR_RESET} ${*}"
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}
## Warning (header)
function warnh() {
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echo -e "${BUILDTOOL_COLOR_WARN}[WARN] ${*}${BUILDTOOL_COLOR_RESET}"
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}
## Warning (extension)
function warne() {
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echo -e "${BUILDTOOL_COLOR_WARN} ${*}${BUILDTOOL_COLOR_RESET}"
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}
## Error (header)
function errorh() {
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echo -e "${BUILDTOOL_COLOR_ERROR}[ERR!] ${*}${BUILDTOOL_COLOR_RESET}"
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}
## Error (extension)
function errore() {
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echo -e "${BUILDTOOL_COLOR_ERROR} ${*}${BUILDTOOL_COLOR_RESET}"
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}
# Banner
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special " _ _ _ _ _ _ _ _ "
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special " (_)___| |_ _ __ ___ | | _____ _ __ _ __ ___| | ___ _ __ | |_(_)_ __ ___ (_)_______ __| |"
special " | / __| __| '_ \` _ \\ _____| |/ / _ \\ '__| '_ \\ / _ \\ |_____ / _ \\| '_ \\| __| | '_ \` _ \\| |_ / _ \\/ _\` |"
special " | \\__ \\ |_| | | | | |_____| < __/ | | | | | __/ |_____| (_) | |_) | |_| | | | | | | |/ / __/ (_| |"
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special " _/ |___/\\__|_| |_| |_| |_|\\_\\___|_| |_| |_|\\___|_| \\___/| .__/ \\__|_|_| |_| |_|_/___\\___|\\__,_|"
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special "|__/ |_|"
empty
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# Print environment configuration
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if [ -n "${BUILDTOOL_DEBUG}" ]; then
warnh "\$BUILDTOOL_DEBUG is set, debug mode is enabled"
fi
if [ -n "${BUILDTOOL_LOCALDIR}" ]; then
warnh "\$BUILDTOOL_LOCALDIR is set, will build kernel package from current working directory"
fi
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# Checks
## Check for Arch Linux
(
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# shellcheck disable=SC1091
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source "/etc/os-release"
if [ "${NAME}" != "Arch Linux" ] || [ "${PRETTY_NAME}" != "Arch Linux" ] || [ "${ID}" != "arch" ]; then
if [ -z "${BUILDTOOL_COMPILE_NONARCH}" ]; then
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errorh "Not running on Arch Linux"
errore "This kernel can only compile on Arch Linux"
errore "If you are sure that you want to compile this kernel on other distributions"
errore "set the \$BUILDTOOL_COMPILE_NONARCH environment variable to \"true\""
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exit 1
else
warnh "\$BUILDTOOL_COMPILE_NONARCH is set, allowing compiling on a non-arch distribution"
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fi
fi
)
## Check for root
if [ "${UID}" == "0" ]; then
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errorh "Can't build kernel as root"
errore "Please create a new user for building the kernel"
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exit 1
fi
## Check for sudo
if ! which sudo &> /dev/null; then
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errorh "Could not find sudo in \$PATH"
errore "Please ensure that you have sudo installed"
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exit 1
fi
# Questions
## Ask if mold should replace ld/lld
function ask_mold() {
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read -rp "$(infoh "Do you want to use mold as your linker (much faster) [Y/n]? ")" BUILDTOOL_MOLD
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case "${BUILDTOOL_MOLD}" in
"y"|"Y"|"")
export "BUILDTOOL_PACKAGES=${BUILDTOOL_PACKAGES} mold"
export "BUILDTOOL_BUILDCMDLINE=${BUILDTOOL_BUILDCMDLINE} LDFLAGS=-fuse-ld=mold RUSTFLAGS=\"-C link-arg=-fuse-ld=mold\""
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;;
"n"|"N") ;;
*)
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errorh "Invalid answer. Please answer with Y or N"
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ask_mold
esac
}
## Ask if the governor should be adjusted
function ask_cpupower() {
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read -rp "$(infoh "Do you want to adjust the cpu governor (improves build performance) [Y/n]? ")" BUILDTOOL_CPUPOWER
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case "${BUILDTOOL_CPUPOWER}" in
"y"|"Y"|"")
export "BUILDTOOL_PACKAGES=${BUILDTOOL_PACKAGES} cpupower"
;;
"n"|"N") ;;
*)
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errorh "Invalid answer. Please answer with Y or N"
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ask_cpupower
esac
}
## Ask for building in tmpfs
function ask_tmpfs() {
if [ -n "${BUILDTOOL_LOCALDIR}" ]; then
warnh "Skipped ask_tmpfs, building in local directory instead (\$BUILDTOOL_LOCALDIR is set)"
export "BUILDTOOL_CLONEDIR=$(pwd)"
return
fi
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read -rp "$(infoh "Do you want to build in a tmpfs (improves build performance, protects your disk from wearing out faster, ~32 GiB memory required) [Y/n]? ")" BUILDTOOL_TMPFS
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case "${BUILDTOOL_TMPFS}" in
"y"|"Y"|"")
export "BUILDTOOL_CLONEDIR=/tmp/${BUILDTOOL_CLONEDIR}"
;;
"n"|"N")
export "BUILDTOOL_CLONEDIR=$(pwd)/${BUILDTOOL_CLONEDIR}"
;;
*)
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errorh "Invalid answer. Please answer with Y or N"
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ask_tmpfs
esac
}
## Ask for kernel config modification using xconfig
function ask_xconfig() {
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read -rp "$(infoh "Do you want to configure the kernel using xconfig before build [y/N]? ")" BUILDTOOL_XCONFIG
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case "${BUILDTOOL_XCONFIG}" in
"y"|"Y")
export "BUILDTOOL_PKGBUILD_XCONFIG=_makexconfig=SET"
;;
"n"|"N"|"")
export "BUILDTOOL_PKGBUILD_XCONFIG=_makexconfig="
;;
*)
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errorh "Invalid answer. Please answer with Y or N"
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ask_xconfig
esac
}
## Ask for kernel config modification using xconfig
function ask_nconfig() {
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read -rp "$(infoh "Do you want to configure the kernel using nconfig before build [y/N]? ")" BUILDTOOL_NCONFIG
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case "${BUILDTOOL_NCONFIG}" in
"y"|"Y")
export "BUILDTOOL_PKGBUILD_NCONFIG=_makenconfig=SET"
;;
"n"|"N"|"")
export "BUILDTOOL_PKGBUILD_NCONFIG=_makenconfig="
;;
*)
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errorh "Invalid answer. Please answer with Y or N"
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ask_nconfig
esac
}
## Ask if the final kernel configuration should be copied
function ask_cpfinalconfig() {
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read -rp "$(infoh "Do you want to copy the final kernel configuration before build [y/N]? ")" BUILDTOOL_CPFINALCONFIG
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case "${BUILDTOOL_CPFINALCONFIG}" in
"y"|"Y")
export "BUILDTOOL_PKGBUILD_CPFINALCONFIG=_copyfinalconfig=SET"
;;
"n"|"N"|"")
export "BUILDTOOL_PKGBUILD_CPFINALCONFIG=_copyfinalconfig="
;;
*)
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errorh "Invalid answer. Please answer with Y or N"
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ask_cpfinalconfig
esac
}
## Ask if only active modules should be compiled into the kernel
function ask_modprobeddb() {
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read -rp "$(infoh "Do you want to only build active kernel modules (modprobed-db must be installed, read \"https://wiki.archlinux.org/index.php/Modprobed-db\" first) [y/N]? ")" BUILDTOOL_MODPROBEDDB
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case "${BUILDTOOL_MODPROBEDDB}" in
"y"|"Y")
if ! which modprobed-db &> /dev/null; then
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errorh "Could not find modprobed-db in \$PATH."
errore "Please ensure that you have modprobed-db installed."
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ask_modprobeddb
return 1
fi
export "BUILDTOOL_PACKAGES=${BUILDTOOL_PACKAGES} modprobed-db"
export "BUILDTOOL_PKGBUILD_MODPROBEDDB=_localmodcfg=SET"
;;
"n"|"N"|"")
export "BUILDTOOL_PKGBUILD_MODPROBEDDB=_localmodcfg="
;;
*)
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errorh "Invalid answer. Please answer with Y or N"
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ask_modprobeddb
esac
}
## Ask for sub architecture
function ask_subarchitecture() {
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infoh "Displaying sub architecture list"
infoe " 1. AMD Opteron/Athlon64/Hammer/K8 (MK8)"
infoe " 2. AMD Opteron/Athlon64/Hammer/K8 with SSE3 (MK8SSE3)"
infoe " 3. AMD 61xx/7x50/PhenomX3/X4/II/K10 (MK10)"
infoe " 4. AMD Barcelona (MBARCELONA)"
infoe " 5. AMD Bobcat (MBOBCAT)"
infoe " 6. AMD Jaguar (MJAGUAR)"
infoe " 7. AMD Bulldozer (MBULLDOZER)"
infoe " 8. AMD Piledriver (MPILEDRIVER)"
infoe " 9. AMD Steamroller (MSTEAMROLLER)"
infoe "10. AMD Excavator (MEXCAVATOR)"
infoe "11. AMD Zen (MZEN)"
infoe "12. AMD Zen 2 (MZEN2)"
infoe "13. AMD Zen 3 (MZEN3)"
infoe "14. AMD Zen 4 (MZEN4)"
infoe "15. Intel P4 / older Netburst based Xeon (MPSC)"
infoe "16. Intel Core 2 (MCORE2)"
infoe "17. Intel Atom (MATOM)"
infoe "18. Intel Nehalem (MNEHALEM)"
infoe "19. Intel Westmere (MWESTMERE)"
infoe "20. Intel Silvermont (MSILVERMONT)"
infoe "21. Intel Goldmont (MGOLDMONT)"
infoe "22. Intel Goldmont Plus (MGOLDMONTPLUS)"
infoe "23. Intel Sandy Bridge (MSANDYBRIDGE)"
infoe "24. Intel Ivy Bridge (MIVYBRIDGE)"
infoe "25. Intel Haswell (MHASWELL)"
infoe "26. Intel Broadwell (MBROADWELL)"
infoe "27. Intel Skylake (MSKYLAKE)"
infoe "28. Intel Skylake X (MSKYLAKEX)"
infoe "29. Intel Cannon Lake (MCANNONLAKE)"
infoe "30. Intel Ice Lake (MICELAKE)"
infoe "31. Intel Cascade Lake (MCASCADELAKE)"
infoe "32. Intel Cooper Lake (MCOOPERLAKE)"
infoe "33. Intel Tiger Lake (MTIGERLAKE)"
infoe "34. Intel Sapphire Rapids (MSAPPHIRERAPIDS)"
infoe "35. Intel Rocket Lake (MROCKETLAKE)"
infoe "36. Intel Alder Lake (MALDERLAKE)"
infoe "37. Intel Raptor Lake (MRAPTORLAKE)"
infoe "38. Intel Meteor Lake (MMETEORLAKE)"
infoe "39. Intel Emerald Rapids (MEMERALDRAPIDS)"
infoe "40. Generic-x86-64 (GENERIC_CPU)"
infoe "41. Generic-x86-64-v2 (GENERIC_CPU2)"
infoe "42. Generic-x86-64-v3 (GENERIC_CPU3)"
infoe "43. Generic-x86-64-v4 (GENERIC_CPU4)"
infoe "44. Intel-Native optimizations autodetected by the compiler (MNATIVE_INTEL)"
infoe "45. AMD-Native optimizations autodetected by the compiler (MNATIVE_AMD)"
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read -rp ":: Which sub architecture do you want to build Linux for (see above, enter 40 if unsure) [40]? " BUILDTOOL_SUBARCHITECTURE
case "${BUILDTOOL_SUBARCHITECTURE}" in
"")
export "BUILDTOOL_PKGBUILD_SUBARCHITECTURE=_subarch=40"
;;
*[!0-9]*)
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errorh "Invalid subarchitecture"
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ask_subarchitecture
return 1
;;
*)
if [ ! "${BUILDTOOL_SUBARCHITECTURE}" -gt 0 ] || [ ! "${BUILDTOOL_SUBARCHITECTURE}" -lt 46 ]; then
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errorh "Invalid subarchitecture"
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ask_subarchitecture
else
export "BUILDTOOL_PKGBUILD_SUBARCHITECTURE=_subarch=${BUILDTOOL_SUBARCHITECTURE}"
fi
;;
esac
}
## Ask for kernel debug mode
function ask_debug() {
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read -rp "$(infoh "Do you want to enable kernel debug mode [y/N/i(gnore)]? ")" BUILDTOOL_KERNELDEBUG
case "${BUILDTOOL_KERNELDEBUG}" in
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"y"|"Y")
export "BUILDTOOL_PKGBUILD_DEBUG=_debug=y"
;;
"n"|"N"|"")
export "BUILDTOOL_PKGBUILD_DEBUG=_debug=n"
;;
"i"|"I")
export "BUILDTOOL_PKGBUILD_DEBUG=_debug="
;;
*)
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errorh "Invalid answer. Please answer with Y, N or I"
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ask_debug
esac
}
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## Ask for clone directory conflict resolution (includes check)
function ask_clonedir_conflictresolution() {
if [ -n "${BUILDTOOL_LOCALDIR}" ]; then
warnh "Skipped conflict resolution (\$BUILDTOOL_LOCALDIR is set)"
export "BUILDTOOL_CLONEDIR_CONFLICT=r"
if [ -a "${BUILDTOOL_CLONEDIR}/src" ]; then
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diagh "src/ directory present, appending \"--noextract\""
export "BUILDTOOL_MAKEPKG_REUSE= --noextract"
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fi
if [ -a "${BUILDTOOL_CLONEDIR}/pkg" ]; then
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diagh "pkg/ directory present, appending \"--force\""
export "BUILDTOOL_MAKEPKG_REUSE=${BUILDTOOL_MAKEPKG_REUSE} --force"
fi
return
fi
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if [ ! -d "${BUILDTOOL_CLONEDIR}" ] && [ ! -L "${BUILDTOOL_CLONEDIR}" ]; then
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return
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elif [ -a "${BUILDTOOL_CLONEDIR}" ] && [ ! -d "${BUILDTOOL_CLONEDIR}" ] && [ ! -L "${BUILDTOOL_CLONEDIR}" ]; then
warnh "Something that isn't a directory or symlink exists at location \"${BUILDTOOL_CLONEDIR}\""
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fi
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read -rp "$(infoh "Warning: \"${BUILDTOOL_CLONEDIR}\" already exists. What should be done to resolve the conflict [A(bort)/r(ecompile)/f(resh)]? ")" BUILDTOOL_CLONEDIR_CONFLICT
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case "${BUILDTOOL_CLONEDIR_CONFLICT}" in
"a"|"A"|"")
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errorh "Conflict resolution failed"
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exit 1
;;
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"r"|"R")
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if [ -a "${BUILDTOOL_CLONEDIR}/src" ]; then
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diagh "src/ directory present, appending \"--noextract\""
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export "BUILDTOOL_MAKEPKG_REUSE= --noextract"
elif [ -a "${BUILDTOOL_CLONEDIR}/pkg" ]; then
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diagh "pkg/ directory present, appending \"--force\""
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export "BUILDTOOL_MAKEPKG_REUSE=${BUILDTOOL_MAKEPKG_REUSE} --force"
fi
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;;
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"f"|"F")
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infoh "Removing existing \$BUILDTOOL_CLONEDIR directory"
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rm -rf "${BUILDTOOL_CLONEDIR}"
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;;
*)
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errorh "Invalid answer. Please answer with Y, N or I"
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ask_debug
esac
}
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ask_mold
ask_cpupower
ask_tmpfs
ask_xconfig
ask_nconfig
ask_cpfinalconfig
ask_modprobeddb
ask_subarchitecture
ask_debug
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ask_clonedir_conflictresolution
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# Pre-building
## Install dependencies
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infoh "Installing dependencies"
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# shellcheck disable=SC2086
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if ! sudo pacman -Syu --asdeps --needed ${BUILDTOOL_PACKAGES}; then
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errorh "Installing dependencies failed: pacman returned with non-zero exit code"
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exit 1
fi
if ! rustup default nightly; then
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errorh "Installing dependencies failed: rustup returned with non-zero exit code"
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exit 1
fi
## Adjust cpu governor
case "${BUILDTOOL_CPUPOWER}" in
"y"|"Y"|"")
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infoh "Adjusting cpu governor"
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if ! sudo cpupower frequency-set -g performance; then
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errorh "Adjusting cpu governor failed: cpupower returned with non-zero exit code"
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return 1
fi
;;
"n"|"N") ;;
*)
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errorh "Internal inconsistency detected: Value of \$BUILDTOOL_CPUPOWER is not a valid boolean answer"
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exit 2
;;
esac
# Clone repository
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if [ "${BUILDTOOL_CLONEDIR_CONFLICT}" == "r" ] || [ "${BUILDTOOL_CLONEDIR_CONFLICT}" == "R" ]; then
warnh "Skipping cloning process"
else
infoh "Cloning repository"
git clone "${BUILDTOOL_REPOSITORY}" "${BUILDTOOL_CLONEDIR}"
fi
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cd "${BUILDTOOL_CLONEDIR}"
# Print debug information
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if [ -n "${BUILDTOOL_DEBUG}" ]; then
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diagh "Printing debug information"
diage "Environment variables:"
env|grep "BUILDTOOL_"|sort
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diagh "More debug information:"
diage "Build cmdline=${BUILDTOOL_BUILDCMDLINE} ${BUILDTOOL_PKGBUILD_XCONFIG} ${BUILDTOOL_PKGBUILD_NCONFIG} ${BUILDTOOL_PKGBUILD_CPFINALCONFIG} ${BUILDTOOL_PKGBUILD_MODPROBEDDB} ${BUILDTOOL_PKGBUILD_SUBARCHITECTURE} ${BUILDTOOL_PKGBUILD_DEBUG} makepkg --syncdeps -p PKGBUILD.buildtool"
diage "Cwd=$(pwd)"
fi
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# Build package
infoh "Building package"
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# shellcheck disable=SC2086
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if ! ${BUILDTOOL_BUILDCMDLINE} "${BUILDTOOL_PKGBUILD_XCONFIG}" "${BUILDTOOL_PKGBUILD_NCONFIG}" "${BUILDTOOL_PKGBUILD_CPFINALCONFIG}" "${BUILDTOOL_PKGBUILD_MODPROBEDDB}" "${BUILDTOOL_PKGBUILD_SUBARCHITECTURE}" "${BUILDTOOL_PKGBUILD_DEBUG}" makepkg --syncdeps${BUILDTOOL_MAKEPKG_REUSE} -p PKGBUILD.buildtool; then
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errorh "Failed package compilation: makepkg returned with non-zero exit code"
errore "Please report this at \"${BUILDTOOL_ISSUETRACKER}\""
exit 1
fi
# Finish message
infoh "Finished kernel compilation successfully"
infoe "You can now install your kernel and kernel headers."