mirror of
https://github.com/Abdess/retroarch_system.git
synced 2026-10-24 12:49:03 -05:00
Abdessamad Derraz
d1414263fa
gptokeyb2 owns the pad in muxterm on muOS with PortMaster, and muxterm keeps PgUp and PgDn for its scrollback. The launcher now says so with RETROBIOS_PAD=gptokeyb_muxterm, and the hints name the gptokeyb buttons with no paging key.
197 lines
7.1 KiB
Bash
Executable File
197 lines
7.1 KiB
Bash
Executable File
#!/bin/sh
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set -eu
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# One-line bootstrap and local wrapper. The downloaded installer is accepted
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# only when it matches the SHA-256 embedded in this wrapper.
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INSTALLER=""
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# When sourced from stdin, $0 is the shell name and the working directory is
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# not a trusted location for install.py. Reuse an adjacent installer only for
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# an actual local install.sh invocation.
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case "$0" in
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install.sh|*/install.sh)
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if [ -f "$0" ]; then
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SCRIPT_DIR=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)
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INSTALLER="$SCRIPT_DIR/install.py"
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fi
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;;
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esac
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TEMP_INSTALLER=""
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TEMP_DIRECTORY=""
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DEFAULT_INSTALL_URL="https://raw.githubusercontent.com/Abdess/retrobios/main/install.py"
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DEFAULT_INSTALL_SHA256="0047a2f49b22271b69e9a4731165c3230fffa85fa0045a2f725a8bb8668ea9f5"
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MAX_INSTALLER_BYTES=2097152
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cleanup() {
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if [ -n "$TEMP_INSTALLER" ] && [ -f "$TEMP_INSTALLER" ]; then
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rm -f -- "$TEMP_INSTALLER"
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fi
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if [ -n "$TEMP_DIRECTORY" ] && [ -d "$TEMP_DIRECTORY" ]; then
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rmdir -- "$TEMP_DIRECTORY" 2>/dev/null || true
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fi
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}
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trap cleanup EXIT HUP INT TERM
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if [ -z "$INSTALLER" ] || [ ! -f "$INSTALLER" ]; then
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install_url=${RETROBIOS_INSTALL_URL:-$DEFAULT_INSTALL_URL}
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expected=${RETROBIOS_INSTALL_SHA256:-$DEFAULT_INSTALL_SHA256}
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case "$install_url" in
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https://*) ;;
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*) echo "Error: installer URL must use HTTPS." >&2; exit 1 ;;
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esac
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case "$expected" in
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*[!0-9A-Fa-f]*)
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echo "Error: installer SHA-256 must contain exactly 64 hexadecimal characters." >&2
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exit 1
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;;
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esac
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if [ "${#expected}" -ne 64 ]; then
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echo "Error: installer SHA-256 must contain exactly 64 hexadecimal characters." >&2
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exit 1
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fi
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TEMP_DIRECTORY=$(mktemp -d)
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TEMP_INSTALLER="$TEMP_DIRECTORY/install.py"
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# Quiet but for the error line: a progress table followed by
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# "curl: (6) ..." and curl's own exit code told nobody what failed.
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if command -v curl >/dev/null 2>&1; then
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fetch() {
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curl --fail --silent --show-error --location --proto '=https' --tlsv1.2 \
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--connect-timeout 30 --retry 2 "$install_url" --output "$TEMP_INSTALLER"
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}
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elif command -v wget >/dev/null 2>&1; then
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# BusyBox wget (Alpine, the RomM image) has no --https-only and refuses
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# the whole command over it (networking/wget.c wget_longopts). The URL
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# itself is checked to be https above, and the SHA-256 below decides.
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https_only=""
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if wget --help 2>&1 | grep -q -- '--https-only'; then
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https_only="--https-only"
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fi
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fetch() {
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wget --quiet ${https_only:+"$https_only"} --timeout=30 --tries=3 \
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--output-document="$TEMP_INSTALLER" "$install_url"
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}
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else
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echo "Error: curl or wget is required to download the installer." >&2
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echo " On Debian or Ubuntu: sudo apt install curl" >&2
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exit 1
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fi
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if ! fetch_error=$(fetch 2>&1); then
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echo "Error: the installer could not be downloaded from $install_url" >&2
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echo " $(printf '%s\n' "$fetch_error" | tail -n 1)" >&2
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echo " Check the network connection, and HTTPS_PROXY if this network needs a proxy," >&2
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echo " then run the same command again. Nothing was run and nothing was written." >&2
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exit 1
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fi
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actual_size=$(wc -c < "$TEMP_INSTALLER" | tr -d ' ')
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if [ "$actual_size" -gt "$MAX_INSTALLER_BYTES" ]; then
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echo "Error: downloaded installer exceeds the size limit." >&2
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exit 1
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fi
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if command -v sha256sum >/dev/null 2>&1; then
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actual=$(sha256sum "$TEMP_INSTALLER" | awk '{print $1}')
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elif command -v shasum >/dev/null 2>&1; then
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actual=$(shasum -a 256 "$TEMP_INSTALLER" | awk '{print $1}')
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else
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echo "Error: sha256sum or shasum is required." >&2
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exit 1
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fi
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expected=$(printf '%s' "$expected" | tr '[:upper:]' '[:lower:]')
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if [ "$actual" != "$expected" ]; then
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echo "Error: the downloaded installer does not match its expected fingerprint." >&2
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echo " Nothing was run and nothing was written." >&2
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overrides=""
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[ -n "${RETROBIOS_INSTALL_URL:-}" ] && overrides="RETROBIOS_INSTALL_URL"
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if [ -n "${RETROBIOS_INSTALL_SHA256:-}" ]; then
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overrides="${overrides:+$overrides and }RETROBIOS_INSTALL_SHA256"
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fi
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if [ -n "$overrides" ]; then
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# A pin or a URL of the user's own refuses the installer: retrying,
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# as the advice below says, would never help.
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echo " $overrides is set in this environment and decides which installer is" >&2
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echo " accepted: unset it to use the installer this script names, or set it to match." >&2
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exit 1
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fi
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echo " The download was most likely cut short: try again. Within minutes of an update" >&2
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echo " of this project the two files can come from caches of different ages." >&2
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echo " Waiting five minutes settles that." >&2
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exit 1
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fi
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INSTALLER="$TEMP_INSTALLER"
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fi
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find_python() {
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PYTHON=""
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for command_name in python3 python; do
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if command -v "$command_name" >/dev/null 2>&1 \
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&& "$command_name" -c 'import sys; raise SystemExit(sys.version_info < (3, 8))' 2>/dev/null; then
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PYTHON=$command_name
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return 0
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fi
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done
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return 1
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}
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# The command that installs Python here, named for this system: Termux has
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# no sudo and installs with pkg, macOS has no apt.
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python_install_command() {
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case "${TERMUX_VERSION:-}:${PREFIX:-}" in
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?*:*|*com.termux*) echo "pkg install python"; return ;;
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esac
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if [ "$(uname -s 2>/dev/null)" = "Darwin" ]; then
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echo "xcode-select --install"
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return
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fi
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os_ids=""
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if [ -r /etc/os-release ]; then
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os_ids=$(sed -n 's/^ID\(_LIKE\)\{0,1\}=//p' /etc/os-release | tr -d '"' | tr '\n' ' ')
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fi
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for os_id in $os_ids; do
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case "$os_id" in
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debian|ubuntu) echo "sudo apt install python3"; return ;;
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fedora|rhel|centos) echo "sudo dnf install python3"; return ;;
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arch) echo "sudo pacman -S python"; return ;;
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opensuse*|suse) echo "sudo zypper install python3"; return ;;
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alpine) echo "apk add python3"; return ;;
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esac
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done
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echo ""
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}
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if ! find_python; then
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install_command=$(python_install_command)
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# Termux installs without root: at a terminal, the bootstrap offers to run it.
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if [ "$install_command" = "pkg install python" ] && (: </dev/tty) 2>/dev/null; then
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printf 'Python 3.8 or newer is required. Install it now with "%s"? [Y/n] ' \
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"$install_command" >/dev/tty
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read -r answer </dev/tty || answer="n"
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case "$answer" in
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[Nn]*) ;;
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*) pkg install -y python </dev/tty && find_python || true ;;
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esac
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fi
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fi
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if [ -z "$PYTHON" ]; then
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echo "Error: Python 3.8 or newer is required." >&2
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if [ -n "$install_command" ]; then
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echo " Install it with: $install_command" >&2
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echo " Then run this command again." >&2
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else
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echo " Install it with this system's package manager, then run this command again." >&2
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fi
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exit 1
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fi
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# Piped from curl, standard input is this script, not the terminal: the
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# installer would skip every question it can ask. Hand it the terminal when
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# there is one.
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# A downloaded installer is a temporary copy the user cannot run again: its
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# hints rebuild the one-line command instead.
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if [ -n "$TEMP_INSTALLER" ]; then
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RETROBIOS_BOOTSTRAP=sh
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export RETROBIOS_BOOTSTRAP
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fi
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if [ ! -t 0 ] && (: </dev/tty) 2>/dev/null; then
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"$PYTHON" "$INSTALLER" "$@" </dev/tty
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else
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"$PYTHON" "$INSTALLER" "$@"
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fi
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