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|
#!@stdenv_shell@ -e
set -euo pipefail
shopt -s extglob
export NIXPKGS_DF_ENV="@env@"
### BEGIN: Default DF options
declare -A _NIXPKGS_DF_OPTS
_NIXPKGS_DF_OPTS[fmod]=0 # Don't use fmod by default.
_NIXPKGS_DF_OPTS[debug]=0 # No debugging output by default.
### END: Default DF options
# Read NIXPKGS_DF_OPTS.
if [[ ! -v NIXPKGS_DF_OPTS ]]; then
NIXPKGS_DF_OPTS=''
fi
IFS=',' read -ra options <<< "$NIXPKGS_DF_OPTS"
for option in ${options[@]+"${options[@]}"}; do
key="${option%=*}"
value="${option##*=}"
if [ -n "$key" ]; then
if [ -z "$value" ] || [ "$key" == "$value" ]; then
value=1
fi
_NIXPKGS_DF_OPTS["$key"]="$value"
fi
done
# Rebuild the canonical option string from the read options.
NIXPKGS_DF_OPTS=''
for key in "${!_NIXPKGS_DF_OPTS[@]}"; do
value="${_NIXPKGS_DF_OPTS["${key}"]}"
NIXPKGS_DF_OPTS="$NIXPKGS_DF_OPTS$key=$value,"
done
NIXPKGS_DF_OPTS="${NIXPKGS_DF_OPTS%,}"
# Echoes a log.
# $@: log messages
log() {
for msg in "$@"; do
echo "[nixpkgs] $msg" >&2
done
}
# Echoes a log if NIXPKGS_DF_OPTS includes debug.
# $@: log messages
debug() {
if [ "${_NIXPKGS_DF_OPTS[debug]}" -ne 0 ]; then
log "$@"
fi
}
# Updates a path in $NIXPKGS_DF_HOME from $NIXPKGS_DF_ENV.
# $1: The environment path.
update_path() {
local path="$1"
local orig="$NIXPKGS_DF_ENV/$path"
local final="$NIXPKGS_DF_HOME/$path"
# If user has replaced these data directories, let them stay.
@mkdir@ -p "$(dirname -- "$final")"
if [ ! -e "$final" ] || [ -L "$final" ]; then
debug "Linking: $final -> $orig"
@rm@ -f "$final"
@ln@ -s "$orig" "$final"
else
debug "Not updating: $final"
fi
}
# Cleans up a path in $NIXPKGS_DF_HOME that may or may not be in $NIXPKGS_DF_ENV.
# $1: The environment path.
cleanup_path() {
local path="$1"
local final="$NIXPKGS_DF_HOME/$path"
# Let them stay if not a link.
if [ ! -e "$final" ] || [ -L "$final" ]; then
debug "Cleaning up: $final"
@rm@ -f "$final"
else
debug "Not cleaning: $final"
fi
}
# Force copies a path in $NIXPKGS_DF_HOME that may or may not be in $NIXPKGS_DF_ENV.
# $1: The environment path.
forcecopy_path() {
local path="$1"
if [ -z "$NIXPKGS_DF_ENV" ] || [ -z "$path" ]; then
# Avoid producing "/" for any `rm -rf`
return
fi
local orig="$NIXPKGS_DF_ENV/$path"
local final="$NIXPKGS_DF_HOME/$path"
if [ -e "$orig" ]; then
debug "Force copying: $orig -> $final"
@mkdir@ -p "$(dirname -- "$final")"
@rm@ -rf "$final"
@cp@ -rL --no-preserve=all "$orig" "$final"
else
debug "Removing: $final"
@rm@ -rf "$final"
fi
}
# Runs the final executable. Expects NIXPKGS_DF_HOME and NIXPKGS_DF_EXE to be set.
go() {
cd "$NIXPKGS_DF_HOME"
debug "Executing: $NIXPKGS_DF_HOME/$NIXPKGS_DF_EXE"
# If we make it past here, we want to log.
# shellcheck disable=SC2093
exec -a "$NIXPKGS_DF_EXE" "$NIXPKGS_DF_HOME/$NIXPKGS_DF_EXE"
log "Execution of $NIXPKGS_DF_HOME/$NIXPKGS_DF_EXE failed!"
exit 1
}
os_name="$(@uname@)"
os_rev="$(@uname@ -r)"
if [ "$os_name" == Linux ]; then
df_dir="df_linux"
elif [ "$os_name" == Darwin ]; then
df_dir="df_osx"
else
log "Unknown platform: $os_name"
exit 1
fi
if [[ -v DF_DIR ]] && [ -n "$DF_DIR" ] && { [[ ! -v NIXPKGS_DF_HOME ]] || [ -z "$NIXPKGS_DF_HOME" ]; }; then
# Compatibility for users that were using DF_DIR, since the dfhack script clobbers this variable.
export NIXPKGS_DF_HOME="$DF_DIR"
fi
if [[ ! -v NIXPKGS_DF_HOME ]] || [ -z "$NIXPKGS_DF_HOME" ]; then
export NIXPKGS_DF_HOME="${XDG_DATA_HOME:-$HOME/.local/share}/$df_dir"
fi
# Compatibility.
export DF_DIR="$NIXPKGS_DF_HOME"
@mkdir@ -p "$NIXPKGS_DF_HOME"
@cat@ <<EOF >&2
/------------------------------------------------------------------------------\\
| Hello from the nixpkgs Dwarf Fortress wrapper! |
| |
| Using the following Dwarf Fortress overlay directory as NIXPKGS_DF_HOME: |
| $(@printf@ '% -76s' "$NIXPKGS_DF_HOME") |
| |
| If you make any changes in it, don't forget to clean it when updating the |
| game version! We detect changes if data directories are symbolic links. |
| |
| Even though we do our best on our own, this script may miss some. Submit a |
| pull request if there are any that become a problem. |
| |
| We started with the following nixpkgs launch options as NIXPKGS_DF_OPTS: |
| $(@printf@ '% -76s' "$NIXPKGS_DF_OPTS") |
| |
| If you want to try fmod over SDL_mixer, set NIXPKGS_DF_OPTS=fmod. |
\\------------------------------------------------------------------------------/
EOF
cd "$NIXPKGS_DF_ENV"
# All potential important files in DF 50 and below.
for path in dwarfort dwarfort.exe df *.so libs raw data/init/* data/!(init|index|announcement); do
force_delete=0
if [[ "$path" == libfmod*.so* ]] && [ "${_NIXPKGS_DF_OPTS[fmod]}" -eq 0 ]; then
force_delete=1
fi
if [ -e "$path" ] && [ "$force_delete" -eq 0 ]; then
update_path "$path"
else
cleanup_path "$path"
fi
done
# These need to be copied due to read only flags on older versions of DF.
for path in index announcement help dipscript; do
forcecopy_path "data/$path"
done
# Handle library paths on Darwin.
if [ "$os_name" == Darwin ]; then
if [ "${os_rev%%.*}" -ge 11 ]; then
export DYLD_LIBRARY_PATH="$NIXPKGS_DF_ENV/libs"
export DYLD_FRAMEWORK_PATH="$NIXPKGS_DF_ENV/libs"
else
export DYLD_FALLBACK_LIBRARY_PATH="$NIXPKGS_DF_ENV/libs"
export DYLD_FALLBACK_FRAMEWORK_PATH="$NIXPKGS_DF_ENV/libs"
fi
fi
|
