mirror of
https://github.com/RetroDECK/RetroDECK.git
synced 2024-11-22 14:05:39 +00:00
352 lines
13 KiB
Bash
Executable file
352 lines
13 KiB
Bash
Executable file
#!/bin/bash
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run_game() {
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# Initialize variables
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emulator=""
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system=""
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manual_mode=false
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# Parse options for system, emulator, and manual mode
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while getopts ":e:s:m" opt; do
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case ${opt} in
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e)
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emulator=$OPTARG # Emulator provided via -e
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;;
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s)
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system=$OPTARG # System provided via -s
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;;
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m)
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manual_mode=true # Manual mode enabled via -m
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log i "Run game: manual mode enabled"
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;;
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\?)
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echo "Usage: $0 start [-e emulator] [-s system] [-m] game"
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exit 1
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;;
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esac
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done
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shift $((OPTIND - 1))
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# Check for game argument
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if [[ -z "$1" ]]; then
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log e "Game path is required."
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log i "Usage: $0 start [-e emulator] [-s system] [-m] game"
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exit 1
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fi
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game=$1
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if [[ -d "$game" ]]; then
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log d "$(basename "$game") is a directory, parsing it like a \"directory as a file\""
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game="$game/$(basename "$game")"
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log d "Actual file is in \"$game\""
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fi
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game_basename="./$(basename "$game")"
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# Step 1: System Recognition
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if [[ -z "$system" ]]; then
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# Automatically detect system from game path
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system=$(echo "$game" | grep -oP '(?<=roms/)[^/]+')
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if [[ -z "$system" ]]; then
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log e "Failed to detect system from game path."
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exit 1
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fi
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fi
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# Step 2: Emulator Definition
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if [[ -n "$emulator" ]]; then
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log d "Emulator provided via command-line: $emulator"
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elif [[ "$manual_mode" = true ]]; then
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log d "Manual mode: showing Zenity emulator selection"
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emulator=$(show_zenity_emulator_list "$system")
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if [[ -z "$emulator" ]]; then
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log e "No emulator selected in manual mode."
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exit 1
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fi
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else
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log d "Automatically searching for an emulator for system: $system"
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# Check for <altemulator> in the game block in gamelist.xml
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altemulator=$(xmllint --recover --xpath "string(//game[path='$game_basename']/altemulator)" "$rdhome/ES-DE/gamelists/$system/gamelist.xml" 2>/dev/null)
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if [[ -n "$altemulator" ]]; then
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log d "Found <altemulator> for game: $altemulator"
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emulator=$(xmllint --recover --xpath "string(//command[@label=\"$altemulator\"])" "$es_systems" 2>/dev/null)
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else # if no altemulator is found we search if a global one is set
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log d "No altemulator found in the game entry, searching for alternativeEmulator to check if a global emulator is set for the system $system"
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alternative_emulator=$(xmllint --recover --xpath 'string(//alternativeEmulator/label)' "$rdhome/ES-DE/gamelists/$system/gamelist.xml" 2>/dev/null)
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log d "Alternate emulator found in <alternativeEmulator> header: $alternative_emulator"
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emulator=$(xmllint --recover --xpath "string(//system[platform='$system']/command[@label=\"$alternative_emulator\"])" "$es_systems" 2>/dev/null)
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fi
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# Fallback to first available emulator in es_systems.xml if no <altemulator> found
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if [[ -z "$emulator" ]]; then
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log d "No alternate emulator found, using first available emulator in es_systems.xml"
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emulator=$(xmllint --recover --xpath "string(//system[name='$system']/command[1])" "$es_systems")
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fi
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if [[ -z "$emulator" ]]; then
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log e "No valid emulator found for system: $system"
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exit 1
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fi
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fi
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# Step 3: Construct and Run the Command
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log i "-------------------------------------------"
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log i " RetroDECK is now booting the game"
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log i " Game path: \"$game\""
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log i " Recognized system: $system"
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log i " Given emulator: $emulator"
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log i "-------------------------------------------"
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# Now pass the final constructed command to substitute_placeholders function
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final_command=$(substitute_placeholders "$emulator")
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# Log and execute the command
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log i "Launching game with command: $final_command"
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eval "$final_command"
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}
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# Assume this function handles showing the Zenity list of emulators for manual mode
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show_zenity_emulator_list() {
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local system="$1"
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# Example logic to retrieve and show Zenity list of emulators for the system
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# This would extract available emulators for the system from es_systems.xml and show a Zenity dialog
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emulators=$(xmllint --xpath "//system[name='$system']/command/@label" "$es_systems" | sed 's/ label=/\n/g' | sed 's/\"//g' | grep -o '[^ ]*')
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zenity --list --title="Select Emulator" --column="Emulators" $emulators
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}
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# Function to extract commands from es_systems.xml and present them in Zenity
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find_system_commands() {
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local system_name=$system
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# Use xmllint to extract the system commands from the XML
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system_section=$(xmllint --xpath "//system[name='$system_name']" "$es_systems" 2>/dev/null)
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if [ -z "$system_section" ]; then
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log e "System not found: $system_name"
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exit 1
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fi
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# Extract commands and labels
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commands=$(echo "$system_section" | xmllint --xpath "//command" - 2>/dev/null)
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# Prepare Zenity command list
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command_list=()
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while IFS= read -r line; do
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label=$(echo "$line" | sed -n 's/.*label="\([^"]*\)".*/\1/p')
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command=$(echo "$line" | sed -n 's/.*<command[^>]*>\(.*\)<\/command>.*/\1/p')
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# Substitute placeholders in the command
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command=$(substitute_placeholders "$command")
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# Add label and command to Zenity list (label first, command second)
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command_list+=("$label" "$command")
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done <<< "$commands"
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# Check if there's only one command
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if [ ${#command_list[@]} -eq 2 ]; then
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log d "Only one command found for $system_name, running it directly: ${command_list[1]}"
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selected_command="${command_list[1]}"
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else
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# Show the list with Zenity and return the **command** (second column) selected
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selected_command=$(zenity --list \
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--title="Select an emulator for $system_name" \
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--column="Emulator" --column="Hidden Command" "${command_list[@]}" \
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--width=800 --height=400 --print-column=2 --hide-column=2)
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fi
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echo "$selected_command"
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}
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# Function to substitute placeholders in the command
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substitute_placeholders() {
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local cmd="$1"
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log d "Substitute placeholder: working on $cmd"
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local rom_path="$game"
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local rom_dir=$(dirname "$rom_path")
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# Strip all file extensions from the base name
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local base_name=$(basename "$rom_path")
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base_name="${base_name%%.*}"
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local file_name=$(basename "$rom_path")
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local rom_raw="$rom_path"
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local rom_dir_raw="$rom_dir"
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local es_path=""
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local emulator_path=""
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# Manually replace %EMULATOR_*% placeholders
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while [[ "$cmd" =~ (%EMULATOR_[A-Z0-9_]+%) ]]; do
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placeholder="${BASH_REMATCH[1]}"
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emulator_path=$(replace_emulator_placeholder "$placeholder")
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cmd="${cmd//$placeholder/$emulator_path}"
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done
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# Substitute %BASENAME% and other placeholders
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cmd="${cmd//"%BASENAME%"/"'$base_name'"}"
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cmd="${cmd//"%FILENAME%"/"'$file_name'"}"
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cmd="${cmd//"%ROMRAW%"/"'$rom_raw'"}"
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cmd="${cmd//"%ROMPATH%"/"'$rom_dir'"}"
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# Ensure paths are quoted correctly
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cmd="${cmd//"%ROM%"/"'$rom_path'"}"
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cmd="${cmd//"%GAMEDIR%"/"'$rom_dir'"}"
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cmd="${cmd//"%GAMEDIRRAW%"/"'$rom_dir_raw'"}"
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cmd="${cmd//"%CORE_RETROARCH%"/"$ra_cores_path"}"
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log d "Command after placeholders substitutions: $cmd"
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# Now handle %INJECT% after %BASENAME% has been substituted
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cmd=$(handle_inject_placeholder "$cmd")
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echo "$cmd"
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}
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# Function to replace %EMULATOR_SOMETHING% with the actual path of the emulator
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replace_emulator_placeholder() {
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local placeholder=$1
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# Extract emulator name from placeholder without changing case
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local emulator_name="${placeholder//"%EMULATOR_"/}" # Extract emulator name after %EMULATOR_
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emulator_name="${emulator_name//"%"/}" # Remove the trailing %
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# Use the find_emulator function to get the emulator path using the correct casing
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local emulator_exec=$(find_emulator "$emulator_name")
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if [[ -z "$emulator_exec" ]]; then
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log e "Emulator '$emulator_name' not found."
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exit 1
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fi
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echo "$emulator_exec"
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}
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# Function to handle the %INJECT% placeholder
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handle_inject_placeholder() {
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local cmd="$1"
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local rom_dir=$(dirname "$game") # Get the ROM directory based on the game path
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# Find and process all occurrences of %INJECT%='something'.extension
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while [[ "$cmd" =~ (%INJECT%=\'([^\']+)\')(.[^ ]+)? ]]; do
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inject_file="${BASH_REMATCH[2]}" # Extract the quoted file name
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extension="${BASH_REMATCH[3]}" # Extract the extension (if any)
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inject_file_full_path="$rom_dir/$inject_file$extension" # Form the full path
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log d "Found inject part: %INJECT%='$inject_file'$extension"
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# Check if the file exists
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if [[ -f "$inject_file_full_path" ]]; then
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# Read the content of the file and replace newlines with spaces
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inject_content=$(cat "$inject_file_full_path" | tr '\n' ' ')
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log i "File \"$inject_file_full_path\" found. Replacing %INJECT% with content."
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# Escape special characters in the inject part for the replacement
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escaped_inject_part=$(printf '%s' "%INJECT%='$inject_file'$extension" | sed 's/[]\/$*.^[]/\\&/g')
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# Replace the entire %INJECT%=...'something'.extension part with the file content
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cmd=$(echo "$cmd" | sed "s|$escaped_inject_part|$inject_content|g")
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log d "Replaced cmd: $cmd"
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else
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log e "File \"$inject_file_full_path\" not found. Removing %INJECT% placeholder."
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# Use sed to remove the entire %INJECT%=...'something'.extension
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escaped_inject_part=$(printf '%s' "%INJECT%='$inject_file'$extension" | sed 's/[]\/$*.^[]/\\&/g')
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cmd=$(echo "$cmd" | sed "s|$escaped_inject_part||g")
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log d "sedded cmd: $cmd"
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fi
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done
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log d "Returning the command with injected content: $cmd"
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echo "$cmd"
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}
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# Function to get the first available emulator in the list
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get_first_emulator() {
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local system_name=$system
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system_section=$(xmllint --xpath "//system[name='$system_name']" "$es_systems" 2>/dev/null)
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if [ -z "$system_section" ]; then
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log e "System not found: $system_name"
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exit 1
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fi
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# Extract the first command and use it as the selected emulator
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first_command=$(echo "$system_section" | xmllint --xpath "string(//command[1])" - 2>/dev/null)
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if [[ -n "$first_command" ]]; then
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# Substitute placeholders in the command
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first_command=$(substitute_placeholders "$first_command")
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log d "Automatically selected the first emulator: $first_command"
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echo "$first_command"
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else
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log e "No command found for the system: $system_name"
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return 1
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fi
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}
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find_emulator() {
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local emulator_name="$1"
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found_path=""
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# Search the es_find_rules.xml file for the emulator
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emulator_section=$(xmllint --xpath "//emulator[@name='$emulator_name']" "$es_find_rules" 2>/dev/null)
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if [ -z "$emulator_section" ]; then
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log e "Find emulator: emulator not found: $emulator_name"
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return 1
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fi
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# Search systempath entries
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while IFS= read -r line; do
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command_path=$(echo "$line" | sed -n 's/.*<entry>\(.*\)<\/entry>.*/\1/p')
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if [ -x "$(command -v $command_path)" ]; then
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found_path=$command_path
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break
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fi
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done <<< "$(echo "$emulator_section" | xmllint --xpath "//rule[@type='systempath']/entry" - 2>/dev/null)"
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# If not found, search staticpath entries
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if [ -z "$found_path" ]; then
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while IFS= read -r line; do
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command_path=$(eval echo "$line" | sed -n 's/.*<entry>\(.*\)<\/entry>.*/\1/p')
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if [ -x "$command_path" ]; then
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found_path=$command_path
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break
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fi
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done <<< "$(echo "$emulator_section" | xmllint --xpath "//rule[@type='staticpath']/entry" - 2>/dev/null)"
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fi
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if [ -z "$found_path" ]; then
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log e "Find emulator: no valid path found for emulator: $emulator_name"
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return 1
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else
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log d "Find emulator: found emulator \"$found_path\""
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echo "$found_path"
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return 0
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fi
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}
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# Function to find the emulator name from the label in es_systems.xml
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find_emulator_name_from_label() {
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local label="$1"
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# Search for the emulator matching the label in the es_systems.xml file
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extracted_emulator_name=$(xmllint --recover --xpath "string(//system[name='$system']/command[@label='$label']/text())" "$es_systems" 2>/dev/null | sed 's/%//g' | sed 's/EMULATOR_//g' | cut -d' ' -f1)
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log d "Found emulator from label: $extracted_emulator_name"
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emulator_command=$(find_emulator "$extracted_emulator_name")
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if [[ -n "$emulator_command" ]]; then
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echo "$emulator_command"
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else
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log e "Found emulator from label: emulator name not found for label: $label"
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return 1
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fi
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}
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