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#!/bin/bash
set -eu
SRCDIR="$(dirname "$0")"
DEFAULT_BUILD_NAME="proton-localbuild" # If no --build-name specified
# Output helpers
COLOR_ERR=""
COLOR_STAT=""
COLOR_INFO=""
COLOR_CMD=""
COLOR_CLEAR=""
if [[ $(tput colors 2>/dev/null || echo 0) -gt 0 ]]; then
COLOR_ERR=$'\e[31;1m'
COLOR_STAT=$'\e[32;1m'
COLOR_INFO=$'\e[30;1m'
COLOR_CMD=$'\e[93;1m'
COLOR_CLEAR=$'\e[0m'
fi
sh_quote() {
local quoted
quoted="$(printf '%q ' "$@")"; [[ $# -eq 0 ]] || echo "${quoted:0:-1}";
}
err() { echo >&2 "${COLOR_ERR}!!${COLOR_CLEAR} $*"; }
stat() { echo >&2 "${COLOR_STAT}::${COLOR_CLEAR} $*"; }
info() { echo >&2 "${COLOR_INFO}::${COLOR_CLEAR} $*"; }
showcmd() { echo >&2 "+ ${COLOR_CMD}$(sh_quote "$@")${COLOR_CLEAR}"; }
die() { err "$@"; exit 1; }
finish() { stat "$@"; exit 0; }
cmd() { showcmd "$@"; "$@"; }
#
# Dependency Checks
#
MISSING_DEPENDENCIES=0
dependency_command() {
local COMMAND=$1
shift
if ! command -v "$COMMAND" &> /dev/null; then
err "Couldn't find command '$COMMAND'. Please install ${@:-$COMMAND}."
MISSING_DEPENDENCIES=1
fi
}
CONTAINER_MOUNT_OPTS=""
check_container_engine() {
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stat "Trying $1."
if ! cmd $1 run --rm $2; then
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info "$1 is unable to run the container."
return 1
fi
touch permission_check
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local inner_uid="$($1 run -v "$(pwd):/test$CONTAINER_MOUNT_OPTS" \
--rm $2 \
stat --format "%u" /test/permission_check 2>&1)"
rm permission_check
if [[ $inner_uid == *"Permission denied"* ]]; then
err "The container cannot access files. Are you using SELinux?"
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die "Please read README.md and check your $1 setup works."
elif [ "$inner_uid" -eq 0 ]; then
# namespace maps the user as root or the build is performed as host's root
ROOTLESS_CONTAINER=1
elif [ "$inner_uid" -eq "$(id -u)" ]; then
ROOTLESS_CONTAINER=0
else
err "File owner's UID doesn't map to 0 or $(id -u) in the container."
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die "Don't know how to map permissions. Please check your $1 setup."
fi
}
#
# Configure
#
THIS_COMMAND="$0 $*" # For printing, not evaling
MAKEFILE="./Makefile"
# This is not rigorous. Do not use this for untrusted input. Do not. If you need a version of
# this for untrusted input, rethink the path that got you here.
function escape_for_make() {
local escape="$1"
escape="${escape//\\/\\\\}" # '\' -> '\\'
escape="${escape//#/\\#}" # '#' -> '\#'
escape="${escape//\$/\$\$}" # '$' -> '$$'
escape="${escape// /\\ }" # ' ' -> '\ '
echo "$escape"
}
function configure() {
local steamrt_image="$arg_protonsdk_image"
local srcdir
srcdir="$(dirname "$0")"
if [[ "$srcdir" = "." ]]; then
err "Cannot do a top level in-tree build."
die "Create a subdirectory in build/ or outside of the tree and run configure.sh from there."
fi
# nothing specified, getting the default value from the Makefile to test the
# container engine
if [[ -z $steamrt_image ]]; then
steamrt_image="$(sed -n 's/STEAMRT_IMAGE ?= //p' $SRCDIR/Makefile.in)"
fi
# Build name
local build_name="$arg_build_name"
if [[ -n $build_name ]]; then
info "Configuring with build name: $build_name"
else
build_name="$DEFAULT_BUILD_NAME"
info "No build name specified, using default: $build_name"
fi
dependency_command make "GNU Make"
if [ "$MISSING_DEPENDENCIES" -ne 0 ]; then
die "Missing dependencies, cannot continue."
fi
if [[ -n "$arg_relabel_volumes" ]]; then
CONTAINER_MOUNT_OPTS=:Z
fi
if [[ -n "$arg_container_engine" ]]; then
check_container_engine "$arg_container_engine" "$steamrt_image" || die "Specified container engine \"$arg_container_engine\" doesn't work"
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else
stat "Trying to find usable container engine."
if check_container_engine docker "$steamrt_image"; then
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arg_container_engine="docker"
elif check_container_engine podman "$steamrt_image"; then
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arg_container_engine="podman"
else
die "${arg_container_engine:-Container engine discovery} has failed. Please fix your setup."
fi
fi
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stat "Using $arg_container_engine."
## Write out config
# Don't die after this point or we'll have rather unhelpfully deleted the Makefile
[[ ! -e "$MAKEFILE" ]] || rm "$MAKEFILE"
{
# Config
echo "# Generated by: $THIS_COMMAND"
echo ""
echo "SRCDIR := $(escape_for_make "$srcdir")"
echo "BUILD_NAME := $(escape_for_make "$build_name")"
# SteamRT was specified, baking it into the Makefile
if [[ -n $arg_protonsdk_image ]]; then
echo "STEAMRT_IMAGE := $(escape_for_make "$arg_protonsdk_image")"
fi
echo "ROOTLESS_CONTAINER := $ROOTLESS_CONTAINER"
echo "CONTAINER_ENGINE := $arg_container_engine"
if [[ -n "$arg_docker_opts" ]]; then
echo "DOCKER_OPTS := $arg_docker_opts"
fi
if [[ -n "$CONTAINER_MOUNT_OPTS" ]]; then
echo "CONTAINER_MOUNT_OPTS := $CONTAINER_MOUNT_OPTS"
fi
if [[ -n "$arg_enable_ccache" ]]; then
echo "ENABLE_CCACHE := 1"
fi
if [[ -n "$arg_enable_bear" ]]; then
echo "ENABLE_BEAR := 1"
fi
# Include base
echo ""
echo "include \$(SRCDIR)/Makefile.in"
} >> "$MAKEFILE"
stat "Created $MAKEFILE, now run make to build."
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stat " See README.md for make targets and instructions"
}
#
# Parse arguments
#
arg_protonsdk_image=""
arg_build_name=""
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arg_container_engine=""
arg_docker_opts=""
arg_relabel_volumes=""
arg_enable_ccache=""
arg_enable_bear=""
arg_help=""
invalid_args=""
function parse_args() {
local arg;
local val;
local val_used;
local val_passed;
while [[ $# -gt 0 ]]; do
arg="$1"
val=''
val_used=''
val_passed=''
if [[ -z $arg ]]; then # Sanity
err "Unexpected empty argument"
return 1
elif [[ ${arg:0:2} != '--' ]]; then
err "Unexpected positional argument ($1)"
return 1
fi
# Looks like an argument does it have a --foo=bar value?
if [[ ${arg%=*} != "$arg" ]]; then
val="${arg#*=}"
arg="${arg%=*}"
val_passed=1
else
# Otherwise for args that want a value, assume "--arg val" form
val="${2:-}"
fi
# The args
if [[ $arg = --help || $arg = --usage ]]; then
arg_help=1
elif [[ $arg = --build-name ]]; then
arg_build_name="$val"
val_used=1
elif [[ $arg = --container-engine ]]; then
arg_container_engine="$val"
val_used=1
elif [[ $arg = --docker-opts ]]; then
arg_docker_opts="$val"
val_used=1
elif [[ $arg = --relabel-volumes ]]; then
arg_relabel_volumes="1"
elif [[ $arg = --enable-ccache ]]; then
arg_enable_ccache="1"
elif [[ $arg = --enable-bear ]]; then
arg_enable_bear="1"
elif [[ $arg = --proton-sdk-image ]]; then
val_used=1
arg_protonsdk_image="$val"
else
err "Unrecognized option $arg"
return 1
fi
# Check if this arg used the value and shouldn't have or vice-versa
if [[ -n $val_used && -z $val_passed ]]; then
# "--arg val" form, used $2 as the value.
# Don't allow this if it looked like "--arg --val"
if [[ ${val#--} != "$val" ]]; then
err "Ambiguous format for argument with value \"$arg $val\""
err " (use $arg=$val or $arg='' $val)"
return 1
fi
# Error if this was the last positional argument but expected $val
if [[ $# -le 1 ]]; then
err "$arg takes a parameter, but none given"
return 1
fi
shift # consume val
elif [[ -z $val_used && -n $val_passed ]]; then
# Didn't use a value, but passed in --arg=val form
err "$arg does not take a parameter"
return 1
fi
shift # consume arg
done
}
usage() {
"$1" "Usage: $0 { --proton-sdk-image=<image> }"
"$1" " Generate a Makefile for building Proton. May be run from another directory to create"
"$1" " out-of-tree build directories (e.g. mkdir mybuild && cd mybuild && ../configure.sh)"
"$1" ""
"$1" " Options"
"$1" " --help / --usage Show this help text and exit"
"$1" ""
"$1" " --build-name=<name> Set the name of the build that displays when used in Steam"
"$1" ""
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"$1" " --container-engine=<engine> Which Docker-compatible container engine to use,"
"$1" " e.g. podman. Tries to do autodiscovery when not specified."
"$1" ""
"$1" " --docker-opts='<options>' Extra options to pass to Docker when invoking the runtime."
"$1" ""
"$1" " --relabel-volumes Bind-mounted volumes will be relabeled. Use with caution."
"$1" ""
"$1" " --enable-ccache Mount \$CCACHE_DIR or \$HOME/.ccache inside of the container and use ccache for the build."
"$1" ""
"$1" " --enable-bear Invokes make via bear creating compile_commands.json."
"$1" ""
"$1" " Steam Runtime"
"$1" " Proton builds that are to be installed & run under the steam client must be built with"
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"$1" " the Steam Runtime SDK to ensure compatibility. See README.md for more information."
"$1" ""
"$1" " --proton-sdk-image=<image> Automatically invoke the Steam Runtime SDK in <image>"
"$1" " for build steps that must be run in an SDK"
"$1" " environment. See README.md for instructions to"
"$1" " create this image."
exit 1;
}
parse_args "$@" || usage err
[[ -z $arg_help ]] || usage info
configure