123456set -e78FLAKE_URL="https://kepr.uk/nina/archive/HEAD.tar.gz"9RELEASES_URL="https://kepr.uk/api/nina/releases/latest"10INSTALL_DIR="${NINA_INSTALL_DIR:-$HOME/.local/bin}"11MIN_ZIG_MINOR=161213os="$(uname -s)"14arch="$(uname -m)"15case "${os}-${arch}" in16 Linux-x86_64) platform="linux-x86_64" ;;17 Linux-aarch64|Linux-arm64) platform="linux-aarch64" ;;18 Darwin-arm64) platform="macos-aarch64" ;;19 Darwin-x86_64) platform="macos-x86_64" ;;20 *)21 printf 'nina: unsupported platform %s-%s\n' "$os" "$arch" >&222 exit 1 ;;23esac2425have() { command -v "$1" >/dev/null 2>&1; }26say() { printf 'nina: %s\n' "$1"; }27die() { say "error: $1" >&2; exit 1; }28blank() { printf '\n'; }29is_nixos() { [ -e /etc/NIXOS ]; }3031fetch_text() {32 if have curl; then curl -fsSL "$1"33 elif have wget; then wget -qO- "$1"34 else die "curl or wget required"; fi35}3637fetch_file() {38 if have curl; then curl -fsSL "$1" -o "$2"39 elif have wget; then wget -qO "$2" "$1"40 else die "curl or wget required"; fi41}42434445banner() {46 cat <<'BANNER'4748 _ __ _ _ __ __ _49 | '_ \ (_)| '_ \ / _` |50 | | | || || | | || (_| |51 |_| |_||_||_| |_| \__,_|5253 NixOS Intuitive Navigation Assistant · kepr.uk/nina5455BANNER56}57585960fetch_source() {61 62 63 64 srcdir="$(mktemp -d /tmp/nina-src.XXXXXX)"65 say "fetching source from Kepr..." >&266 fetch_file "$FLAKE_URL" "${srcdir}/nina.tar.gz" \67 || die "could not download source archive — check your connection"68 tar -xzf "${srcdir}/nina.tar.gz" -C "$srcdir" --strip-components=1 \69 || die "could not extract source archive"70 printf '%s' "$srcdir"71}72737475install_binary() {76 say "fetching release metadata..."77 meta="$(fetch_text "$RELEASES_URL" 2>/dev/null)" || return 178 [ -n "$meta" ] || return 17980 if have python3; then81 version="$(printf '%s' "$meta" | python3 -c "82import sys, json83d = json.load(sys.stdin)84print(d.get('version') or '')85" 2>/dev/null)"86 dl_url="$(printf '%s' "$meta" | python3 -c "87import sys, json88d = json.load(sys.stdin)89print((d.get('platforms') or {}).get('${platform}', {}).get('url') or '')90" 2>/dev/null)"91 cksum="$(printf '%s' "$meta" | python3 -c "92import sys, json93d = json.load(sys.stdin)94p = (d.get('platforms') or {}).get('${platform}', {})95raw = p.get('blake3') or p.get('checksum') or ''96print(raw[len('blake3:'):] if raw.startswith('blake3:') else raw)97" 2>/dev/null)"98 elif have jq; then99 version="$(printf '%s' "$meta" | jq -r '.version // empty')"100 dl_url="$(printf '%s' "$meta" | jq -r ".platforms.\"${platform}\".url // empty")"101 cksum_raw="$(printf '%s' "$meta" | jq -r ".platforms.\"${platform}\".blake3 // .platforms.\"${platform}\".checksum // empty")"102 cksum="${cksum_raw#blake3:}"103 else104 version="$(printf '%s' "$meta" | grep -o '"version":"[^"]*"' | sed 's/"version":"//;s/"//')"105 plat_block="$(printf '%s' "$meta" | grep -o "\"${platform}\":{[^}]*}" | head -1)"106 dl_url="$(printf '%s' "$plat_block" | grep -o '"url":"[^"]*"' | sed 's/"url":"//;s/"//')"107 cksum=""108 fi109110 [ -n "$dl_url" ] || return 1111 [ -n "$version" ] || version="latest"112113 say "downloading nina ${version} for ${platform}..."114 tmpfile="$(mktemp /tmp/nina.XXXXXX)"115 fetch_file "$dl_url" "$tmpfile" || { rm -f "$tmpfile"; return 1; }116117 if [ -n "$cksum" ] && have b3sum; then118 actual="$(b3sum --no-names "$tmpfile" 2>/dev/null | awk '{print $1}')"119 if [ "$actual" != "$cksum" ]; then120 say "checksum mismatch — aborting"121 rm -f "$tmpfile"122 return 1123 fi124 say "checksum verified"125 fi126127 chmod +x "$tmpfile"128 mkdir -p "$INSTALL_DIR"129 mv "$tmpfile" "${INSTALL_DIR}/nina"130 say "installed nina ${version} → ${INSTALL_DIR}/nina"131 return 0132}133134135136nixos_profile_install() {137 have nix || return 1138 say "installing nina to ~/.nix-profile/bin/nina via nix profile..."139 blank140 if nix profile install "${FLAKE_URL}#nina"; then141 return 0142 fi143 blank144 say "nix profile install failed. Common causes:"145 say " flakes not enabled — add to /etc/nix/nix.conf or ~/.config/nix/nix.conf:"146 say " experimental-features = nix-command flakes"147 say " once nina is installed: nina setup enables this automatically"148 blank149 return 1150}151152153154nixos_shell_build() {155 have nix-shell || return 1156 say "fetching source and building nina using nix-shell..."157 blank158 srcdir="$(fetch_source)"159160 161 162 build_cmd="cd '${srcdir}' && zig build -Doptimize=ReleaseSafe"163 if nix-shell -p zig_0_16 --run "$build_cmd" 2>/dev/null; then164 :165 else166 say "zig_0_16 not in channel — fetching from nixpkgs-unstable..."167 nix-shell \168 -I nixpkgs=https://releases.nixos.org/nixos/unstable/nixos-unstable/nixexprs.tar.xz \169 -p zig_0_16 \170 --run "$build_cmd" \171 || die "build failed — see output above"172 fi173174 mkdir -p "$INSTALL_DIR"175 cp "${srcdir}/zig-out/bin/nina" "${INSTALL_DIR}/nina"176 chmod +x "${INSTALL_DIR}/nina"177 blank178 say "installed from source → ${INSTALL_DIR}/nina"179 say "note: binary built outside nix — adopt ~/nina.nix into configuration.nix"180 say " to make nina fully nix-managed (nina goodbye handles removal either way)"181}182183184185generate_nixos_module() {186 187 cat > "$HOME/nina.nix" <<'NIXEOF'188# ~/nina.nix — generated by the nina installer189#190# Declares nina as a NixOS system package.191#192# Add to /etc/nixos/configuration.nix:193# imports = [ /home/YOUR_USER/nina.nix ];194# Then: sudo nixos-rebuild switch195#196# To update: nina update (or re-run the installer)197# To remove: nina goodbye (or delete this file, then nixos-rebuild switch)198#199# For flake-based configurations, add nina as a flake input instead:200# inputs.nina.url = "https://kepr.uk/nina/archive/HEAD.tar.gz";201# # in your nixosModules list: nina.nixosModules.default202# # then set: programs.nina.enable = true;203{ ... }:204{205 imports = [206 "${builtins.fetchTarball "https://kepr.uk/nina/archive/HEAD.tar.gz"}/nixos-module.nix"207 ];208 programs.nina.enable = true;209}210NIXEOF211 blank212 say "generated ~/nina.nix for system-wide installation:"213 say " 1. add to /etc/nixos/configuration.nix:"214 say " imports = [ /home/$(id -un)/nina.nix ];"215 say " 2. sudo nixos-rebuild switch"216}217218219220check_zig() {221 if ! have zig; then222 blank223 say "Zig not found. Building nina requires Zig 0.${MIN_ZIG_MINOR}+."224 blank225 say " Download: https://ziglang.org/download/"226 if is_nixos; then227 say " NixOS: nix-shell -p zig_0_16 --run 'sh install.sh'"228 fi229 blank230 die "Zig 0.${MIN_ZIG_MINOR}+ required"231 fi232233 zig_ver="$(zig version 2>/dev/null)"234 major="$(printf '%s' "$zig_ver" | cut -d. -f1)"235 minor="$(printf '%s' "$zig_ver" | cut -d. -f2)"236 ok=0237 [ "$major" -ge 1 ] 2>/dev/null && ok=1238 [ "$major" -eq 0 ] 2>/dev/null && [ "$minor" -ge "$MIN_ZIG_MINOR" ] 2>/dev/null && ok=1239240 if [ "$ok" -ne 1 ]; then241 blank242 say "found zig ${zig_ver}, but nina requires Zig 0.${MIN_ZIG_MINOR}+."243 if is_nixos; then244 say " run: nix-shell -p zig_0_16 --run 'sh install.sh'"245 else246 say " update: https://ziglang.org/download/"247 fi248 blank249 die "Zig 0.${MIN_ZIG_MINOR}+ required; found ${zig_ver}"250 fi251252 say "zig ${zig_ver} found"253}254255256257build_from_source() {258 say "building from source..."259 check_zig260261 if [ -f "build.zig" ] && [ -f "src/main.zig" ]; then262 srcdir="."263 else264 srcdir="$(fetch_source)"265 fi266267 (cd "$srcdir" && zig build -Doptimize=ReleaseSafe) \268 || die "build failed — see output above"269270 mkdir -p "$INSTALL_DIR"271 cp "${srcdir}/zig-out/bin/nina" "${INSTALL_DIR}/nina"272 chmod +x "${INSTALL_DIR}/nina"273 say "installed from source → ${INSTALL_DIR}/nina"274}275276277278check_path() {279 case ":${PATH}:" in280 *":${INSTALL_DIR}:"*) ;;281 *)282 blank283 say "${INSTALL_DIR} is not in your PATH. Add it:"284 say " export PATH=\"\${PATH}:${INSTALL_DIR}\""285 say " echo 'export PATH=\"\${PATH}:${INSTALL_DIR}\"' >> ~/.bashrc"286 if is_nixos; then287 say " NixOS: add to environment.sessionVariables in configuration.nix"288 fi289 ;;290 esac291}292293294295296297298maybe_setup_features() {299 have nix || return 0300 301 nix eval --expr '1' >/dev/null 2>&1 && return 0302303 NINA="${INSTALL_DIR}/nina"304 [ -x "$NINA" ] || NINA="nina"305306 blank307 say "nina needs nix's experimental features (nix-command and flakes) to"308 say "search and install packages."309310 if [ -r /dev/tty ]; then311 printf 'nina: enable them now? [Y/n] ' > /dev/tty312 IFS= read -r ans < /dev/tty 2>/dev/null || ans="y"313 case "$ans" in314 [Nn]*) say "skipped — enable later with: nina setup"; return 0 ;;315 esac316 "$NINA" setup || say "automatic setup failed — run: nina setup"317 else318 say "run nina setup to enable them"319 fi320}321322323324farewell() {325 printf '\n'326 printf ' thank you!! running nina update occasionally will keep me in tip top shape.\n'327 printf ' get started by running nina hello\n'328 printf '\n'329 printf ' if nina turns out not to be for you, nina goodbye will remove her cleanly.\n'330 printf '\n'331}332333334335banner336337if is_nixos; then338 say "NixOS detected"339 if nixos_profile_install; then340 generate_nixos_module341 maybe_setup_features342 farewell343 exit 0344 fi345 nixos_shell_build346 generate_nixos_module347 check_path348 maybe_setup_features349 farewell350 exit 0351fi352353354if install_binary; then355 check_path356 maybe_setup_features357 farewell358 exit 0359fi360361say "no pre-built binary for ${platform} — falling back to source build"362build_from_source363check_path364maybe_setup_features365farewell