mirror of
https://github.com/freedoom/freedoom.git
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94 lines
2.6 KiB
Bash
Executable file
94 lines
2.6 KiB
Bash
Executable file
#!/usr/bin/env bash
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# SPDX-License-Identifier: CC0-1.0
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# These ports should be ordered by ease-of-use, of which menu
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# simplicity and support for high-resolution take high priority.
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# "doom" is Debian’s generic name for their alternatives system.
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PORTS="doom odamex gzdoom crispy-doom chocolate-doom prboom-plus"
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# Just a single argument starting the command is allowed, -p, in order
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# to explicitly set a port on the command line. -- is also supported
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# so that -p can be instead sent directly to the port’s argument list.
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if [ $# -gt 0 ]; then
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if [ "$1" = "-p" ]; then
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DOOMPORT="$2"
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shift; shift
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elif [ "$1" = "--" ]; then
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shift
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fi
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fi
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case "$(basename "$0")" in
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freedm)
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IWAD=freedm.wad
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;;
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freedoom1)
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IWAD=freedoom1.wad
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;;
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freedoom2 | *)
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IWAD=freedoom2.wad
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;;
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esac
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if [ -z "$DOOMWADPATH" ]; then
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# Support installations of Freedoom to the home directory using
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# the XDG spec. Makes this complicated, but let’s do it right.
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if [ -z "$XDG_DATA_HOME" ]; then
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if [ -z "$HOME" ]; then
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HOME=/
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fi
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XDG_PATH="$HOME"/.local/share/games/doom
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else
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XDG_PATH="$XDG_DATA_HOME"/games/doom
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fi
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PATHS=(
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"$XDG_PATH"
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/usr/local/share/games/doom
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/usr/local/share/doom
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/usr/share/games/doom
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/usr/share/doom
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)
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export DOOMWADPATH="$(echo "${PATHS[@]}" | tr ' ' :)"
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fi
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if [ -z "$DOOMPORT" ] && [ -h "$HOME"/.doomport ]; then
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if [ -f "$(readlink -f "$HOME"/.doomport)" ] \
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&& [ -x "$(readlink -f "$HOME"/.doomport)" ]; then
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DOOMPORT="$(readlink -f "$HOME"/.doomport)"
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fi
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fi
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if [ "$DOOMPORT" ]; then
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exec "$DOOMPORT" -iwad "$IWAD" "$@"
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fi
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dirpath=$(eval echo "\${PATH}" 2>/dev/null | tr : ' ')
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for port in $PORTS; do
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for dir in $dirpath; do
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for file in "$dir"/"$port"; do
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if [ -f "$file" ] && [ -x "$file" ]; then
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exec "$file" -iwad "$IWAD" "$@"
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fi
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done
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done
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done
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# If we’ve reached this far, no engine was successfully executed.
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# print message to stderr and exit with a status of 1.
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cat <<EOF >&2
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$(basename "$0") could not locate nor launch a Doom engine. Most
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likely, you simply need to install one, check your distribution
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package repositories for names such as "odamex" or "chocolate-doom" or
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seek out one and install it manually.
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If you believe you already have one, you may just need to modify your
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PATH environment variable to include it, or set up the $HOME/.doomport
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symbolic link to point directly to the engine of your choice.
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EOF
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exit 1
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