Files
nvbench/.devcontainer/launch.sh
2025-04-14 17:26:12 +00:00

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#!/usr/bin/env bash
set -euo pipefail
# Ensure the script is being executed in the nvbench/ root
cd "$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )/..";
print_help() {
echo "Usage: $0 [-c|--cuda <CUDA version>] [-H|--host <Host compiler>] [-d|--docker]"
echo "Launch a development container. If no CUDA version or Host compiler are specified,"
echo "the top-level devcontainer in .devcontainer/devcontainer.json will be used."
echo ""
echo "Options:"
echo " -c, --cuda Specify the CUDA version. E.g., 12.2"
echo " -H, --host Specify the host compiler. E.g., gcc12"
echo " -d, --docker Launch the development environment in Docker directly without using VSCode."
echo " --gpus gpu-request GPU devices to add to the container ('all' to pass all GPUs)."
echo " -e, --env list Set additional container environment variables."
echo " -v, --volume list Bind mount a volume."
echo " -h, --help Display this help message and exit."
}
# Assign variable one scope above the caller
# Usage: local "$1" && _upvar $1 "value(s)"
# Param: $1 Variable name to assign value to
# Param: $* Value(s) to assign. If multiple values, an array is
# assigned, otherwise a single value is assigned.
# See: http://fvue.nl/wiki/Bash:_Passing_variables_by_reference
_upvar() {
if unset -v "$1"; then
if (( $# == 2 )); then
eval $1=\"\$2\";
else
eval $1=\(\"\${@:2}\"\);
fi;
fi
}
parse_options() {
local -;
set -euo pipefail;
# Read the name of the variable in which to return unparsed arguments
local UNPARSED="${!#}";
# Splice the unparsed arguments variable name from the arguments list
set -- "${@:1:$#-1}";
local OPTIONS=c:e:H:dhv
local LONG_OPTIONS=cuda:,env:,host:,gpus:,volume:,docker,help
# shellcheck disable=SC2155
local PARSED_OPTIONS=$(getopt -n "$0" -o "${OPTIONS}" --long "${LONG_OPTIONS}" -- "$@")
# shellcheck disable=SC2181
if [[ $? -ne 0 ]]; then
exit 1
fi
eval set -- "${PARSED_OPTIONS}"
while true; do
case "$1" in
-c|--cuda)
cuda_version="$2"
shift 2
;;
-e|--env)
env_vars+=("$1" "$2")
shift 2
;;
-H|--host)
host_compiler="$2"
shift 2
;;
--gpus)
gpu_request="$2"
shift 2
;;
-d|--docker)
docker_mode=true
shift
;;
-h|--help)
print_help
exit 0
;;
-v|--volume)
volumes+=("$1" "$2")
shift 2
;;
--)
shift
_upvar "${UNPARSED}" "${@}"
break
;;
*)
echo "Invalid option: $1"
print_help
exit 1
;;
esac
done
}
# shellcheck disable=SC2155
launch_docker() {
local -;
set -euo pipefail
inline_vars() {
cat - \
`# inline local workspace folder` \
| sed "s@\${localWorkspaceFolder}@$(pwd)@g" \
`# inline local workspace folder basename` \
| sed "s@\${localWorkspaceFolderBasename}@$(basename "$(pwd)")@g" \
`# inline container workspace folder` \
| sed "s@\${containerWorkspaceFolder}@${WORKSPACE_FOLDER:-}@g" \
`# inline container workspace folder basename` \
| sed "s@\${containerWorkspaceFolderBasename}@$(basename "${WORKSPACE_FOLDER:-}")@g" \
`# translate local envvars to shell syntax` \
| sed -r 's/\$\{localEnv:([^\:]*):?(.*)\}/${\1:-\2}/g'
}
args_to_path() {
local -a keys=("${@}")
keys=("${keys[@]/#/[}")
keys=("${keys[@]/%/]}")
echo "$(IFS=; echo "${keys[*]}")"
}
json_string() {
python3 -c "import json,sys; print(json.load(sys.stdin)$(args_to_path "${@}"))" 2>/dev/null | inline_vars
}
json_array() {
python3 -c "import json,sys; [print(f'\"{x}\"') for x in json.load(sys.stdin)$(args_to_path "${@}")]" 2>/dev/null | inline_vars
}
json_map() {
python3 -c "import json,sys; [print(f'{k}=\"{v}\"') for k,v in json.load(sys.stdin)$(args_to_path "${@}").items()]" 2>/dev/null | inline_vars
}
devcontainer_metadata_json() {
docker inspect --type image --format '{{json .Config.Labels}}' "$DOCKER_IMAGE" \
| json_string '"devcontainer.metadata"'
}
###
# Read relevant values from devcontainer.json
###
local devcontainer_json="${path}/devcontainer.json";
# Read image
local DOCKER_IMAGE="$(json_string '"image"' < "${devcontainer_json}")"
# Always pull the latest copy of the image
docker pull "$DOCKER_IMAGE"
# Read workspaceFolder
local WORKSPACE_FOLDER="$(json_string '"workspaceFolder"' < "${devcontainer_json}")"
# Read remoteUser
local REMOTE_USER="$(json_string '"remoteUser"' < "${devcontainer_json}")"
# If remoteUser isn't in our devcontainer.json, read it from the image's "devcontainer.metadata" label
if test -z "${REMOTE_USER:-}"; then
REMOTE_USER="$(devcontainer_metadata_json | json_string "-1" '"remoteUser"')"
fi
# Read runArgs
local -a RUN_ARGS="($(json_array '"runArgs"' < "${devcontainer_json}"))"
# Read initializeCommand
local -a INITIALIZE_COMMAND="($(json_array '"initializeCommand"' < "${devcontainer_json}"))"
# Read containerEnv
local -a ENV_VARS="($(json_map '"containerEnv"' < "${devcontainer_json}" | sed -r 's/(.*)=(.*)/--env \1=\2/'))"
# Read mounts
local -a MOUNTS="($(
tee < "${devcontainer_json}" \
1>/dev/null \
>(json_array '"mounts"') \
>(json_string '"workspaceMount"') \
| xargs -r -I% echo --mount '%'
))"
###
# Update run arguments and container environment variables
###
# Only pass `-it` if the shell is a tty
if ! ${CI:-'false'} && tty >/dev/null 2>&1 && (exec </dev/tty); then
RUN_ARGS+=("-it")
fi
for flag in rm init; do
if [[ " ${RUN_ARGS[*]} " != *" --${flag} "* ]]; then
RUN_ARGS+=("--${flag}")
fi
done
# Prefer the user-provided --gpus argument
if test -n "${gpu_request:-}"; then
RUN_ARGS+=(--gpus "${gpu_request}")
else
# Otherwise read and infer from hostRequirements.gpu
local GPU_REQUEST="$(json_string '"hostRequirements"' '"gpu"' < "${devcontainer_json}")"
if test "${GPU_REQUEST:-false}" = true; then
RUN_ARGS+=(--gpus all)
elif test "${GPU_REQUEST:-false}" = optional && \
command -v nvidia-container-runtime >/dev/null 2>&1; then
RUN_ARGS+=(--gpus all)
fi
fi
RUN_ARGS+=(--workdir "${WORKSPACE_FOLDER:-/home/coder/nvbench}")
if test -n "${REMOTE_USER:-}"; then
ENV_VARS+=(--env NEW_UID="$(id -u)")
ENV_VARS+=(--env NEW_GID="$(id -g)")
ENV_VARS+=(--env REMOTE_USER="$REMOTE_USER")
RUN_ARGS+=(-u root:root)
RUN_ARGS+=(--entrypoint "${WORKSPACE_FOLDER:-/home/coder/nvbench}/.devcontainer/docker-entrypoint.sh")
fi
if test -n "${SSH_AUTH_SOCK:-}"; then
ENV_VARS+=(--env "SSH_AUTH_SOCK=/tmp/ssh-auth-sock")
MOUNTS+=(--mount "source=${SSH_AUTH_SOCK},target=/tmp/ssh-auth-sock,type=bind")
fi
# Append user-provided volumes
if test -v volumes && test ${#volumes[@]} -gt 0; then
MOUNTS+=("${volumes[@]}")
fi
# Append user-provided envvars
if test -v env_vars && test ${#env_vars[@]} -gt 0; then
ENV_VARS+=("${env_vars[@]}")
fi
# Run the initialize command before starting the container
if test "${#INITIALIZE_COMMAND[@]}" -gt 0; then
eval "${INITIALIZE_COMMAND[*]@Q}"
fi
exec docker run \
"${RUN_ARGS[@]}" \
"${ENV_VARS[@]}" \
"${MOUNTS[@]}" \
"${DOCKER_IMAGE}" \
"$@"
}
launch_vscode() {
local -;
set -euo pipefail;
# Since Visual Studio Code allows only one instance per `devcontainer.json`,
# this code prepares a unique temporary directory structure for each launch of a devcontainer.
# By doing so, it ensures that multiple instances of the same environment can be run
# simultaneously. The script replicates the `devcontainer.json` from the desired CUDA
# and compiler environment into this temporary directory, adjusting paths to ensure the
# correct workspace is loaded. A special URL is then generated to instruct VSCode to
# launch the development container using this temporary configuration.
local workspace="$(basename "$(pwd)")"
local tmpdir="$(mktemp -d)/${workspace}"
mkdir -p "${tmpdir}"
mkdir -p "${tmpdir}/.devcontainer"
cp -arL "${path}/devcontainer.json" "${tmpdir}/.devcontainer"
sed -i "s@\\${localWorkspaceFolder}@$(pwd)@g" "${tmpdir}/.devcontainer/devcontainer.json"
local path="${tmpdir}"
local hash="$(echo -n "${path}" | xxd -pu - | tr -d '[:space:]')"
local url="vscode://vscode-remote/dev-container+${hash}/home/coder/nvbench"
local launch=""
if type open >/dev/null 2>&1; then
launch="open"
elif type xdg-open >/dev/null 2>&1; then
launch="xdg-open"
fi
if [ -n "${launch}" ]; then
echo "Launching VSCode Dev Container URL: ${url}"
code --new-window "${tmpdir}"
exec "${launch}" "${url}" >/dev/null 2>&1
fi
}
main() {
local -a unparsed;
parse_options "$@" unparsed;
set -- "${unparsed[@]}";
# If no CTK/Host compiler are provided, just use the default environment
if [[ -z ${cuda_version:-} ]] && [[ -z ${host_compiler:-} ]]; then
path=".devcontainer"
else
path=".devcontainer/cuda${cuda_version}-${host_compiler}"
if [[ ! -f "${path}/devcontainer.json" ]]; then
echo "Unknown CUDA [${cuda_version}] compiler [${host_compiler}] combination"
echo "Requested devcontainer ${path}/devcontainer.json does not exist"
exit 1
fi
fi
if ${docker_mode:-'false'}; then
launch_docker "$@"
else
launch_vscode
fi
}
main "$@"