125 lines
4 KiB
Bash
125 lines
4 KiB
Bash
# Sourced by the scripts in scripts/ (and tools/) so every one of them finds
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# toolchains the same way: from the environment ./install.sh generates. A script calls joeyNeed for each tool it uses, and gets a clear
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# "install this" message (exit 2, which the gate runners treat as SKIP)
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# instead of failing halfway through with a missing binary.
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JOEY_REPO="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)"
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if [ -f "$JOEY_REPO/toolchains/env.sh" ]; then
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# shellcheck source=/dev/null
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source "$JOEY_REPO/toolchains/env.sh"
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fi
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# joeyNeed VAR INSTALL-TARGET -- exit 2 unless VAR names an existing path.
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joeyNeed() {
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local var="$1"
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local target="$2"
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if [ -z "${!var:-}" ] || [ ! -e "${!var}" ]; then
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echo "$(basename "$0"): $var is not available; run: ./install.sh install $target" >&2
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exit 2
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fi
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}
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# joeyNeedFile PATH INSTALL-TARGET -- exit 2 unless PATH exists.
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joeyNeedFile() {
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if [ ! -e "$1" ]; then
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echo "$(basename "$0"): $1 is missing; run: ./install.sh install $2" >&2
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exit 2
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fi
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}
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# DOSBox Staging must never read or write the user's own DOSBox setup, even
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# ~/.config/dosbox (it creates that tree even with --noprimaryconf). Launch
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# it as
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# XDG_CONFIG_HOME="$work/xdg" "$DOSBOX" "${JOEY_DOSBOX_ISOLATE[@]}" ...
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JOEY_DOSBOX_ISOLATE=(--noprimaryconf --nolocalconf)
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# joeyExampleProgram NAME PORT -- the built program for an example name. A
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# program that ships in its own folder with its DATA (Space Taxi on every
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# port but the IIgs) is found inside that folder. When nothing is built yet
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# it prints the flat path, so the caller's "not built" message names it.
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joeyExampleProgram() {
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local name="$1"
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local bin="$JOEY_REPO/build/$2/bin"
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local up="${name^^}"
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local ext=""
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local candidate
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[ "$up" = "SPACETAXI" ] && up=STAXI
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case "$2" in
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iigs)
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printf '%s\n' "$bin/$up"
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return 0
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;;
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amiga)
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# Mixed-case names, and Space Taxi is called Taxi there.
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up="${name,,}"
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case "$up" in
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staxi|spacetaxi) up=taxi ;;
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esac
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up="${up^}"
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;;
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atarist) ext=".PRG" ;;
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dos) ext=".EXE" ;;
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x68000) ext=".X" ;;
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*)
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echo "$(basename "$0"): unknown port '$2' (iigs, amiga, atarist, dos or x68000)" >&2
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return 2
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;;
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esac
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for candidate in "$bin/$up/$up$ext" "$bin/$up$ext"; do
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if [ -f "$candidate" ]; then
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printf '%s\n' "$candidate"
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return 0
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fi
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done
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printf '%s\n' "$bin/$up$ext"
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}
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# joeyFindWindow DISPLAY PID -- print the X window owned by process PID.
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# More robust than matching titles, which differ between emulator builds.
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joeyFindWindow() {
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local win
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for win in $(DISPLAY="$1" xdotool search --name -- "." 2>/dev/null); do
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if [ "$(DISPLAY="$1" xdotool getwindowpid "$win" 2>/dev/null)" = "$2" ]; then
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printf '%s\n' "$win"
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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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# joeyAlive PID -- PID is running. A zombie (exited, not yet reaped) is not,
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# although `kill -0` still succeeds on it.
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joeyAlive() {
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local stat
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stat="$(ps -o stat= -p "$1" 2>/dev/null)" || return 1
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[[ "$stat" != Z* ]]
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}
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# joeyStop PID... -- stop emulator processes and make sure they are gone.
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# Hatari, MAME and DOSBox Staging ignore or are slow to act on SIGTERM; a
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# plain `kill` left them running (and burning CPU) after their script had
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# finished, so escalate to SIGKILL. Only ever pass PIDs this script started.
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joeyStop() {
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local pid
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local tick
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for pid in "$@"; do
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[ -n "$pid" ] || continue
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kill "$pid" 2>/dev/null || continue
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for tick in 1 2 3 4 5 6 7 8 9 10; do
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joeyAlive "$pid" || break
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sleep 0.2
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done
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kill -9 "$pid" 2>/dev/null || true
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# Reap it when it is this shell's child (a no-op otherwise), so no
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# zombie outlives the script where nothing else would reap it.
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wait "$pid" 2>/dev/null || true
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done
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}
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