Maksim Totmin
4c34f0bedc
Streams H.264 to the Galahad II LCD via USB (gousb) with: - ffmpeg CLI transcoding (no fragile FFmpeg C-ABI bindings) - pure-Go Annex-B access-unit splitting - framerate pacing with graceful shutdown and USB reconnect - TOML config, cobra CLI, structured slog logging, unit tests
80 lines
2.2 KiB
Bash
Executable File
80 lines
2.2 KiB
Bash
Executable File
#!/usr/bin/env bash
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#
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# Install galahad2lcd: build, install the binary, systemd unit, udev rule
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# and (optionally) an initial configuration.
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#
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# Usage: sudo ./install.sh [/path/to/media.gif]
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set -euo pipefail
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APP=galahad2lcd
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BINDIR=/usr/local/bin
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SYSTEMD_DIR=/etc/systemd/system
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UDEV_DIR=/etc/udev/rules.d
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CONFIG_FILE=/etc/galahad2lcd.toml
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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info() { echo -e "\033[0;32m[+] $*\033[0m"; }
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warn() { echo -e "\033[0;33m[!] $*\033[0m"; }
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fail() { echo -e "\033[0;31m[-] $*\033[0m" >&2; exit 1; }
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[[ $EUID -eq 0 ]] || fail "run as root (sudo $0 $*)"
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if ! command -v go >/dev/null; then
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fail "Go is required: sudo pacman -S go (or the equivalent for your distro)"
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fi
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info "building release binary"
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VERSION=$(git describe --tags --always --dirty 2>/dev/null || echo dev)
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go build -trimpath -ldflags "-s -w -X main.version=${VERSION}" -o "${BINDIR}/${APP}" \
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"${SCRIPT_DIR}/../cmd/galahad2lcd"
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info "installing systemd unit"
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install -m 0644 "${SCRIPT_DIR}/${APP}.service" "${SYSTEMD_DIR}/${APP}.service"
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info "installing udev rule"
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install -m 0644 "${SCRIPT_DIR}/99-${APP}.rules" "${UDEV_DIR}/99-${APP}.rules"
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udevadm control --reload-rules 2>/dev/null || true
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# Remove the legacy Rust-driver config file (/etc/default/galahad2lcd) if
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# present; the new driver uses /etc/galahad2lcd.toml.
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rm -f /etc/default/${APP}
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if [[ ! -f "${CONFIG_FILE}" ]]; then
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if [[ $# -ge 1 ]]; then
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INPUT="$(realpath "$1")"
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[[ -f "$INPUT" ]] || fail "file '$INPUT' does not exist"
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info "writing initial configuration for $INPUT"
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cat > "${CONFIG_FILE}" <<EOF
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[display]
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input = "${INPUT}"
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rotate = 0
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speed = 1.0
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[usb]
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vendor_id = 0x0416
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product_id = 0x7395
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[stream]
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fps = 0
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cache_path = "/tmp/galahad_cache.h264"
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EOF
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else
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warn "no media file given; run 'sudo ${APP} set --input /path/to/media.gif' after install"
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fi
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fi
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chmod 0644 "${CONFIG_FILE}"
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info "reloading systemd and starting ${APP}"
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systemctl daemon-reload
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systemctl enable "${APP}"
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systemctl restart "${APP}"
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info "installation complete"
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echo
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echo " Change the media later with:"
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echo " sudo ${APP} set --input /path/to/media.gif --rotate 0"
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echo " Inspect USB devices with:"
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echo " ${APP} list"
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echo " View logs with:"
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echo " journalctl -u ${APP} -f" |