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linux: refactor patch.sh in order to add new operation modes

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This commit is contained in:
Vladislav Yarmak 2019-09-27 19:28:42 +03:00
parent 9d889d6371
commit f25b0fd056
1 changed files with 64 additions and 44 deletions
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108
patch.sh
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@ -6,11 +6,10 @@ set -euo pipefail ; # <- this semicolon and comment make options apply
backup_path="/opt/nvidia/libnvidia-encode-backup"
silent_flag=''
rollback_flag=''
print_usage() { printf '
SYNOPSIS
patch.sh [OPTION]...
patch.sh [-s] [-r|-h]
DESCRIPTION
The patch for Nvidia drivers to increase encoder sessions
@ -22,12 +21,15 @@ DESCRIPTION
'
}
# shellcheck disable=SC2209
opmode="patch"
while getopts 'rsh' flag; do
case "${flag}" in
r) rollback_flag='true' ;;
r) opmode="${opmode}rollback" ;;
s) silent_flag='true' ;;
*) print_usage
exit 1 ;;
h) opmode="${opmode}help" ;;
*) echo "Incorrect option specified in command line" ; exit 2 ;;
esac
done
@ -105,54 +107,65 @@ declare -A object_list=(
["435.21"]='libnvcuvid.so'
)
NVIDIA_SMI="$(command -v nvidia-smi)"
if ! driver_version=$("$NVIDIA_SMI" --query-gpu=driver_version --format=csv,noheader,nounits | head -n 1) ; then
echo 'Something went wrong. Check nvidia driver'
exit 1;
fi
echo "Detected nvidia driver version: $driver_version"
if [[ ! "${patch_list[$driver_version]+isset}" || ! "${object_list[$driver_version]+isset}" ]]; then
echo "Patch for this ($driver_version) nvidia driver not found." 1>&2
echo "Available patches for: " 1>&2
for drv in "${!patch_list[@]}"; do
echo "$drv" 1>&2
done
exit 1;
fi
patch="${patch_list[$driver_version]}"
object="${object_list[$driver_version]}"
declare -a driver_locations=(
'/usr/lib/x86_64-linux-gnu'
'/usr/lib/x86_64-linux-gnu/nvidia/current/'
'/usr/lib64'
"/usr/lib/nvidia-${driver_version%%.*}"
)
dir_found=''
for driver_dir in "${driver_locations[@]}" ; do
if [[ -e "$driver_dir/$object.$driver_version" ]]; then
dir_found='true'
break
patch_common () {
NVIDIA_SMI="$(command -v nvidia-smi || true)"
if [[ ! "$NVIDIA_SMI" ]] ; then
echo 'nvidia-smi utility not found. Probably driver is not installed.'
exit 1
fi
done
[[ "$dir_found" ]] || { echo "ERROR: cannot detect driver directory"; exit 1; }
if ! driver_version=$("$NVIDIA_SMI" --query-gpu=driver_version --format=csv,noheader,nounits | head -n 1) ; then
echo 'Something went wrong. Check nvidia driver'
exit 1
fi
if [[ $rollback_flag ]]; then
echo "Detected nvidia driver version: $driver_version"
if [[ ! "${patch_list[$driver_version]+isset}" || ! "${object_list[$driver_version]+isset}" ]]; then
echo "Patch for this ($driver_version) nvidia driver not found." 1>&2
echo "Available patches for: " 1>&2
for drv in "${!patch_list[@]}"; do
echo "$drv" 1>&2
done
exit 1
fi
patch="${patch_list[$driver_version]}"
object="${object_list[$driver_version]}"
declare -a driver_locations=(
'/usr/lib/x86_64-linux-gnu'
'/usr/lib/x86_64-linux-gnu/nvidia/current/'
'/usr/lib64'
"/usr/lib/nvidia-${driver_version%%.*}"
)
dir_found=''
for driver_dir in "${driver_locations[@]}" ; do
if [[ -e "$driver_dir/$object.$driver_version" ]]; then
dir_found='true'
break
fi
done
[[ "$dir_found" ]] || { echo "ERROR: cannot detect driver directory"; exit 1; }
}
rollback () {
patch_common
if [[ -f "$backup_path/$object.$driver_version" ]]; then
cp -p "$backup_path/$object.$driver_version" \
"$driver_dir/$object.$driver_version"
echo "Restore from backup $object.$driver_version"
else
echo "Backup not found. Try to patch first."
exit 1;
exit 1
fi
else
}
patch () {
patch_common
if [[ ! -f "$backup_path/$object.$driver_version" ]]; then
echo "Attention! Backup not found. Copy current $object to backup."
mkdir -p "$backup_path"
@ -165,4 +178,11 @@ else
sha1sum "${PATCH_OUTPUT_DIR-$driver_dir}/$object.$driver_version"
ldconfig
echo "Patched!"
fi
}
case "${opmode}" in
patch) patch ;;
patchrollback) rollback ;;
patchhelp) print_usage ; exit 2 ;;
*) echo "Incorrect combination of flags"; exit 2 ;;
esac