output.zig

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1// output.zig — the only file that writes to stdout2// All ANSI codes live here. No raw escape sequences elsewhere.3const std = @import("std");4const types = @import("types.zig");5const Io = std.Io;67// Color constants — all ANSI codes live here only8const PINK = "\x1b[38;2;255;183;197m";9const BOLD = "\x1b[1m";10const GREEN = "\x1b[32m";11const YELLOW = "\x1b[33m";12const RED = "\x1b[31m";13const CYAN = "\x1b[36m";14const DIM = "\x1b[2m";15const RESET = "\x1b[0m";1617// Exported for TUI use (search.zig references these to avoid \x1b in that file)18pub const C_PINK = PINK;19pub const C_BOLD = BOLD;20pub const C_GREEN = GREEN;21pub const C_YELLOW = YELLOW;22pub const C_RED = RED;23pub const C_CYAN = CYAN;24pub const C_DIM = DIM;25pub const C_RESET = RESET;26pub const C_CLEAR_EOL = "\x1b[K";27pub const C_CURSOR_UP_FMT = "\x1b[{d}A";2829// Precomputed prefix strings30const HDR_C = PINK ++ ":: " ++ RESET;31const HDR_P = ":: ";32const STEP_C = "   " ++ DIM ++ "-> " ++ RESET;33const STEP_P = "   -> ";34const TEACH_C = "   " ++ DIM ++ "= " ++ RESET;35const TEACH_P = "   = ";36const ERR_C = PINK ++ ":: " ++ RED ++ "error:" ++ RESET ++ " ";37const ERR_P = ":: error: ";38const WARN_C = PINK ++ ":: " ++ YELLOW ++ "warning:" ++ RESET ++ " ";39const WARN_P = ":: warning: ";4041var _fw: Io.File.Writer = undefined;42var _w: *Io.Writer = undefined;43var color_enabled: bool = true;44var teach_enabled: bool = false;4546pub fn init(writer: *Io.Writer, environ: *const std.process.Environ.Map, color_config: bool) void {47    _w = writer;48    color_enabled = color_config and49        (std.c.isatty(std.posix.STDOUT_FILENO) != 0) and50        !environ.contains("NO_COLOR");51}5253pub fn setTeach(enabled: bool) void {54    teach_enabled = enabled;55}5657pub fn flush() void {58    _w.flush() catch {};59}6061fn c(code: []const u8) []const u8 {62    return if (color_enabled) code else "";63}6465fn hdr() []const u8 {66    return if (color_enabled) HDR_C else HDR_P;67}6869fn step() []const u8 {70    return if (color_enabled) STEP_C else STEP_P;71}7273fn teach_pfx() []const u8 {74    return if (color_enabled) TEACH_C else TEACH_P;75}7677// Raw write — used by TUI78pub fn raw(bytes: []const u8) void {79    _w.writeAll(bytes) catch {};80}8182// Formatted print — used by TUI for in-place rendering83pub fn p(comptime fmt: []const u8, args: anytype) void {84    _w.print(fmt, args) catch {};85}8687pub fn cursorUp(n: usize) void {88    if (n > 0) p("\x1b[{d}A", .{n});89}9091pub fn clearLine() void {92    p("\r\x1b[K", .{});93}9495// --- Error and warning output ---9697pub fn printError(message: []const u8, detail: ?[]const u8, suggestion: ?[]const u8) void {98    p("{s}{s}\n", .{ if (color_enabled) ERR_C else ERR_P, message });99    if (detail) |d| p("   {s}{s}{s}\n", .{ c(DIM), d, c(RESET) });100    if (suggestion) |s| p("   {s}-> {s}{s}\n", .{ c(DIM), s, c(RESET) });101}102103pub fn printWarning(message: []const u8) void {104    p("{s}{s}\n", .{ if (color_enabled) WARN_C else WARN_P, message });105}106107pub fn printTeach(cmd: []const u8) void {108    if (teach_enabled) p("{s}{s}{s}\n", .{ teach_pfx(), cmd, c(RESET) });109}110111pub fn printSubstep(comptime fmt: []const u8, args: anytype) void {112    p("{s}", .{step()});113    p(fmt, args);114    p("\n", .{});115}116117// --- Confirmation prompt (returns true = yes) ---118119pub fn confirm(prompt: []const u8) bool {120    p("   {s}continue? [Y/n]  ", .{prompt});121    flush();122    var buf: [64]u8 = undefined;123    var i: usize = 0;124    while (i < buf.len) {125        const n = std.posix.read(std.posix.STDIN_FILENO, buf[i .. i + 1]) catch break;126        if (n == 0) break;127        if (buf[i] == '\n') break;128        i += 1;129    }130    const input = std.mem.trim(u8, buf[0..i], " \t");131    if (input.len == 0) return true;132    return input[0] != 'n' and input[0] != 'N';133}134135// --- Apply / rebuild ---136137pub fn applyStart(machine: []const u8) void {138    p("{s}rebuilding {s}...\n", .{ hdr(), machine });139}140141pub fn applyDone(gen: u32, elapsed_ms: u64) void {142    const secs = @as(f64, @floatFromInt(elapsed_ms)) / 1000.0;143    if (elapsed_ms >= 1000) {144        p("{s}generation {s}{d}{s}  {s}[{d:.1}s]{s}\n", .{ hdr(), c(BOLD), gen, c(RESET), c(DIM), secs, c(RESET) });145    } else {146        p("{s}generation {s}{d}{s}\n", .{ hdr(), c(BOLD), gen, c(RESET) });147    }148}149150pub fn applyFailed(translated: []const u8) void {151    p("{s}build failed\n", .{if (color_enabled) ERR_C else ERR_P});152    if (translated.len > 0) p("   {s}{s}{s}\n", .{ c(DIM), translated, c(RESET) });153    p("   {s}-> nina doctor{s}\n", .{ c(DIM), c(RESET) });154}155156pub fn applyDry(machine: []const u8) void {157    p("{s}dry run  {s}\n", .{ hdr(), machine });158}159160pub fn applyDryDone() void {161    p("{s}no changes applied\n", .{hdr()});162}163164// --- Check ---165166pub fn checkStart(machine: []const u8) void {167    p("{s}checking {s}...\n", .{ hdr(), machine });168}169170pub fn checkOk() void {171    p("{s}{s}ok{s}\n", .{ hdr(), c(GREEN), c(RESET) });172}173174pub fn checkFailed(msg: []const u8) void {175    p("{s}config invalid\n", .{if (color_enabled) ERR_C else ERR_P});176    if (msg.len > 0) p("   {s}{s}{s}\n", .{ c(DIM), msg, c(RESET) });177}178179// --- Back / go ---180181pub fn backStart(machine: []const u8, from: u32, to: u32) void {182    p("{s}rolling back  {s}  gen {d} -> gen {d}\n", .{ hdr(), machine, from, to });183}184185pub fn goStart(machine: []const u8, current: u32, target: u32) void {186    p("{s}switching  {s}  gen {d} -> gen {d}\n", .{ hdr(), machine, current, target });187}188189pub fn generationDone(n: u32) void {190    p("{s}done  gen {s}{d}{s}\n", .{ hdr(), c(BOLD), n, c(RESET) });191}192193// --- History ---194195pub fn historyHeader(machine: []const u8) void {196    p("{s}generations  {s}\n\n", .{ hdr(), machine });197}198199pub fn historyRow(gen: types.GenerationInfo) void {200    if (gen.current) {201        p("   {s}{d}{s}   {s}   {s}   {s}current{s}\n", .{ c(BOLD), gen.number, c(RESET), gen.date, gen.time, c(BOLD), c(RESET) });202    } else {203        p("   {s}{d}   {s}   {s}{s}\n", .{ c(DIM), gen.number, gen.date, gen.time, c(RESET) });204    }205}206207// --- Clean ---208209pub fn cleanStart(machine: []const u8, keep: u32, total: u32) void {210    p("{s}cleaning  {s}  keeping {d} of {d}\n", .{ hdr(), machine, keep, total });211}212213pub fn cleanDone(freed: []const u8) void {214    p("{s}freed {s}\n", .{ hdr(), freed });215}216217// --- Status ---218219pub fn statusHeader() void {220    p("{s}status\n\n", .{hdr()});221}222223pub fn statusRow(machine: []const u8, gen: u32, time: []const u8, size: []const u8, ok: bool) void {224    if (ok) {225        p("   {s}{s}   gen {d}   {s}   {s}{s}\n", .{ c(DIM), machine, gen, time, size, c(RESET) });226    } else {227        p("   {s}{s}   {s}unreachable{s}\n", .{ c(RED), machine, "", c(RESET) });228    }229}230231// --- Diff ---232233pub fn diffHeader(a: u32, b: u32, machine: []const u8) void {234    p("{s}gen {d} -> gen {d}  {s}\n\n", .{ hdr(), a, b, machine });235}236237pub fn diffRow(entry: types.DiffEntry) void {238    switch (entry.op) {239        .add => p("   {s}+{s} {s}   {s}\n", .{ c(GREEN), c(RESET), entry.package, entry.new_version orelse "" }),240        .remove => p("   {s}-{s} {s}   {s}\n", .{ c(RED), c(RESET), entry.package, entry.old_version orelse "" }),241        .change => p("   {s}^{s} {s}   {s} -> {s}\n", .{ c(CYAN), c(RESET), entry.package, entry.old_version orelse "", entry.new_version orelse "" }),242    }243}244245// --- Doctor ---246247pub fn doctorHeader(machine: []const u8) void {248    p("{s}diagnosing  {s}\n\n", .{ hdr(), machine });249}250251pub fn doctorRow(check: types.DoctorCheck) void {252    const status_str = switch (check.status) {253        .ok => if (color_enabled) GREEN ++ "ok" ++ RESET else "ok",254        .warn => if (color_enabled) YELLOW ++ "warn" ++ RESET else "warn",255        .fail => if (color_enabled) RED ++ "fail" ++ RESET else "fail",256    };257    const note_str = check.note orelse "";258    p("   {s:<16}  {s}   {s}\n", .{ check.name, status_str, note_str });259}260261pub fn doctorSummary(warnings: u32, failures: u32) void {262    if (failures > 0) {263        p("{s}{d} problems\n", .{ hdr(), failures });264    } else if (warnings > 0) {265        p("{s}{d} warnings\n", .{ hdr(), warnings });266    } else {267        p("{s}{s}all good{s}\n", .{ hdr(), c(GREEN), c(RESET) });268    }269}270271// --- Update ---272273pub fn updateStart(machine: []const u8) void {274    p("{s}updating channels  {s}\n\n", .{ hdr(), machine });275}276277pub fn updateChannel(name: []const u8, old: ?[]const u8, new: ?[]const u8) void {278    if (old != null and new != null and !std.mem.eql(u8, old.?, new.?)) {279        p("   {s}   {s} -> {s}\n", .{ name, old.?, new.? });280    } else {281        p("   {s}   {s}no change{s}\n", .{ name, c(DIM), c(RESET) });282    }283}284285pub fn updateDone() void {286    p("\n{s}done\n", .{hdr()});287}288289// --- Upgrade ---290291pub fn upgradeStart(machine: []const u8) void {292    p("{s}upgrading  {s}\n", .{ hdr(), machine });293}294295// --- Log ---296297pub fn logHeader(machine: []const u8) void {298    p("{s}history  {s}\n\n", .{ hdr(), machine });299}300301pub fn logRow(date: []const u8, time: []const u8, action: []const u8, detail: []const u8) void {302    p("   {s}  {s}   {s:<12}  {s}\n", .{ date, time, action, detail });303}304305// --- Edit ---306307pub fn editOpen(path: []const u8, editor: []const u8) void {308    p("{s}opening {s}\n", .{ hdr(), path });309    printSubstep("{s}", .{editor});310    p("\n   {s}run nina check to validate before applying{s}\n", .{ c(DIM), c(RESET) });311}312313// --- Fmt ---314315pub fn fmtStart(path: []const u8) void {316    p("{s}formatting  {s}\n", .{ hdr(), path });317}318319pub fn fmtDone() void {320    p("{s}done\n", .{hdr()});321}322323pub fn fmtNeedsFormat() void {324    p("{s}needs formatting  {s}run nina fmt to fix{s}\n", .{ hdr(), c(DIM), c(RESET) });325}326327// --- Repl ---328329pub fn replStart() void {330    p("{s}nix repl  {s}nixpkgs loaded{s}  :q to exit\n", .{ hdr(), c(DIM), c(RESET) });331}332333// --- Develop ---334335pub fn developStart(pkgs: []const []const u8) void {336    p("{s}entering dev shell\n\n   ", .{hdr()});337    for (pkgs, 0..) |pkg, i| {338        if (i > 0) p("  ", .{});339        p("{s}", .{pkg});340    }341    p("\n\n   {s}exit to return{s}\n\n", .{ c(DIM), c(RESET) });342}343344pub fn developDone() void {345    p("{s}back\n", .{hdr()});346}347348// --- Info ---349350pub fn infoHeader(machine: []const u8) void {351    p("{s}{s}\n\n", .{ hdr(), machine });352}353354pub fn infoRow(key: []const u8, val: []const u8) void {355    p("   {s:<12}  {s}\n", .{ key, val });356}357358// --- Boot ---359360pub fn bootHeader(machine: []const u8) void {361    p("{s}boot entries  {s}\n\n", .{ hdr(), machine });362}363364pub fn bootEntry(entry: types.BootEntry, idx: usize) void {365    if (entry.current) {366        p("   {s}> {s}{s}{s}\n", .{ c(BOLD), entry.title, if (entry.date) |d| std.fmt.allocPrint(std.heap.page_allocator, "   {s}", .{d}) catch "   " else "", c(RESET) });367    } else {368        p("   {s}  {s}{s}{s}\n", .{ c(DIM), entry.title, if (entry.date) |d| std.fmt.allocPrint(std.heap.page_allocator, "   {s}", .{d}) catch "   " else "", c(RESET) });369    }370    _ = idx;371}372373// --- Service ---374375pub fn serviceListHeader(machine: []const u8) void {376    p("{s}services  {s}\n\n", .{ hdr(), machine });377}378379pub fn serviceRow(svc: types.ServiceInfo) void {380    const state_str = switch (svc.state) {381        .active => if (color_enabled) GREEN ++ "active" ++ RESET else "active",382        .failed => if (color_enabled) RED ++ "failed" ++ RESET else "failed",383        .inactive => "inactive",384        .unknown => "unknown",385    };386    const uptime = svc.uptime orelse "";387    p("   {s:<24}  {s:<14}  {s}\n", .{ svc.name, state_str, uptime });388}389390pub fn serviceVerb(verb: []const u8, name: []const u8, machine: []const u8) void {391    p("{s}{s} {s}  {s}\n", .{ hdr(), verb, name, machine });392}393394pub fn serviceDone() void {395    p("{s}done\n", .{hdr()});396}397398pub fn serviceLogsHeader(name: []const u8, n: u32, machine: []const u8) void {399    p("{s}{s}  last {d} lines  {s}\n\n", .{ hdr(), name, n, machine });400}401402// --- Store ---403404pub fn storeInfo(info: types.StoreInfo) void {405    p("{s}store\n\n", .{hdr()});406    p("   {s:<16}  {s}\n", .{ "total", info.total_size });407    p("   {s:<16}  {d} paths\n", .{ "live", info.live_paths });408    p("   {s:<16}  {s}{d} paths{s}   run nina clean\n", .{ "reclaimable", c(DIM), info.reclaimable_paths, c(RESET) });409}410411// --- Channel ---412413pub fn channelListHeader(machine: []const u8) void {414    p("{s}channels  {s}\n\n", .{ hdr(), machine });415}416417pub fn channelRow(ch: types.ChannelInfo) void {418    p("   {s:<16}  {s}\n", .{ ch.name, ch.url });419}420421// --- Flake ---422423pub fn flakeUpdateStart() void {424    p("{s}updating inputs\n\n", .{hdr()});425}426427pub fn flakeInput(input: types.FlakeInput) void {428    if (input.changed) {429        const old = if (input.old_rev) |r| r[0..@min(7, r.len)] else "?";430        const new = if (input.new_rev) |r| r[0..@min(7, r.len)] else "?";431        p("   {s:<20}  {s} -> {s}\n", .{ input.name, old, new });432    } else {433        p("   {s:<20}  {s}no change{s}\n", .{ input.name, c(DIM), c(RESET) });434    }435}436437pub fn flakeLockWritten() void {438    p("\n{s}flake.lock written\n", .{hdr()});439}440441pub fn flakeValid() void {442    p("{s}{s}valid{s}\n", .{ hdr(), c(GREEN), c(RESET) });443}444445pub fn flakeCheckStart() void {446    p("{s}checking flake\n", .{hdr()});447}448449// --- Profile ---450451pub fn profileListHeader() void {452    p("{s}profile packages\n\n", .{hdr()});453}454455pub fn profileRow(attr: []const u8, version: []const u8, description: []const u8) void {456    p("   {s:<24}  {s:<12}  {s}\n", .{ attr, version, description });457}458459// --- Install / Remove / Try ---460461pub fn installStart(pkg: []const u8, path: types.InstallPath) void {462    const path_str = switch (path) {463        .profile => "profile",464        .system => "system",465    };466    p("{s}installing {s}{s}{s}  {s}\n", .{ hdr(), c(PINK), pkg, c(RESET), path_str });467}468469pub fn installDone(pkg: []const u8) void {470    p("{s}{s}{s}{s} installed  {s}available now{s}\n", .{ hdr(), c(PINK), pkg, c(RESET), c(DIM), c(RESET) });471}472473pub fn installEditorPrompt(pkg: []const u8, config_path: []const u8, line: u32, editor: []const u8) void {474    p("{s}opening {s}  add {s}{s}{s} to systemPackages\n", .{ hdr(), config_path, c(PINK), pkg, c(RESET) });475    const cmd = std.fmt.allocPrint(std.heap.page_allocator, "{s} {s} +{d}", .{ editor, config_path, line }) catch editor;476    printSubstep("{s}", .{cmd});477    p("\n   {s}save and close when done{s}\n\n", .{ c(DIM), c(RESET) });478}479480pub fn installSelectPrompt(pkg: []const u8, version: []const u8) void {481    p("{s}{s}{s}{s}  {s}\n\n", .{ hdr(), c(PINK), pkg, c(RESET), version });482    p("   [i] profile install    {s}instant  no rebuild{s}\n", .{ c(DIM), c(RESET) });483    p("   [s] system install     {s}opens editor  requires apply{s}\n", .{ c(DIM), c(RESET) });484    p("   [t] try now            {s}exits when done{s}\n\n", .{ c(DIM), c(RESET) });485    p("   > ", .{});486    flush();487}488489pub fn tryStart(pkg: []const u8) void {490    p("{s}trying {s}{s}{s}  exit when done\n", .{ hdr(), c(PINK), pkg, c(RESET) });491}492493pub fn tryDone() void {494    p("{s}back\n", .{hdr()});495}496497// --- List ---498499pub fn listHeader() void {500    p("{s}installed packages\n\n", .{hdr()});501}502503pub fn listSection(title: []const u8) void {504    p("   {s}{s}{s}\n", .{ c(DIM), title, c(RESET) });505}506507pub fn listPkg(name: []const u8, version: []const u8) void {508    p("   {s}{s}{s}   {s}{s}{s}\n", .{ c(PINK), name, c(RESET), c(DIM), version, c(RESET) });509}510511// --- Hello ---512513pub fn hello(machines: []const types.Machine) void {514    p("{s}nina\n\n", .{hdr()});515    for (machines) |m| {516        const kind = if (m.local) "local" else "ssh";517        const detail = if (m.local) "default" else m.host orelse "";518        p("   {s}{s}{s}   {s}   {s}\n", .{ c(DIM), m.name, c(RESET), kind, detail });519    }520    p("\n", .{});521}522523// --- Help ---524525pub fn help() void {526    p("{s}nina  {s}nixos helper{s}\n\n", .{ hdr(), c(DIM), c(RESET) });527    const cmds = [_][2][]const u8{528        .{ "apply", "rebuild and switch" },529        .{ "back", "roll back one generation" },530        .{ "go <n>", "switch to generation n" },531        .{ "history", "list all generations" },532        .{ "clean", "remove old generations" },533        .{ "search <q>", "find packages" },534        .{ "install <pkg>", "add to profile or system" },535        .{ "remove <pkg>", "remove from profile or system" },536        .{ "try <pkg>", "test without installing" },537        .{ "list", "show installed packages" },538        .{ "edit", "open configuration.nix" },539        .{ "check", "validate config" },540        .{ "diff", "changes between generations" },541        .{ "status", "machine health" },542        .{ "update", "refresh channels" },543        .{ "upgrade", "update and rebuild" },544        .{ "log", "operation history" },545        .{ "doctor", "diagnose issues" },546        .{ "develop", "enter dev shell" },547        .{ "flake", "flake management" },548        .{ "build", "build a package" },549        .{ "run", "run without installing" },550        .{ "service", "manage services" },551        .{ "store", "nix store tools" },552        .{ "channel", "manage channels" },553        .{ "profile", "user profile packages" },554        .{ "info", "system information" },555        .{ "boot", "boot entries" },556        .{ "fmt", "format configuration.nix" },557        .{ "repl", "nix repl with nixpkgs" },558        .{ "option <q>", "search nixos options" },559        .{ "pkg", "inspect packages" },560        .{ "pin", "pin flake inputs" },561        .{ "hash", "compute nix hash" },562        .{ "fetch", "fetch and hash a url" },563        .{ "hello", "list machines" },564        .{ "help", "this message" },565    };566    for (cmds) |cmd| {567        p("   {s:<18}  {s}{s}{s}\n", .{ cmd[0], c(DIM), cmd[1], c(RESET) });568    }569    p("\n   {s}flags: --on <machine>  --dry  --check  --no-apply  --last <n>  --all  --json{s}\n", .{ c(DIM), c(RESET) });570}571572// --- Search (text output before TUI) ---573574pub fn searchResult(pkg: types.NixPackage) void {575    p("   {s}{s}{s}   {s}{s}{s}   {s}\n", .{ c(PINK), pkg.pname, c(RESET), c(DIM), pkg.version, c(RESET), pkg.description });576}577578pub fn searchHeader(query: []const u8, count: usize) void {579    p("{s}search nixpkgs {s}  {s}{d} results{s}\n\n", .{ hdr(), query, c(DIM), count, c(RESET) });580}581582// --- Gen commands ---583584pub fn genCurrent(n: u32) void {585    p("{d}\n", .{n});586}587588pub fn done() void {589    p("{s}done\n", .{hdr()});590}591592pub fn runStart(pkg: []const u8) void {593    p("{s}running {s}{s}{s}\n", .{ hdr(), c(PINK), pkg, c(RESET) });594}595596pub fn buildStart(attr: []const u8) void {597    p("{s}building {s}\n", .{ hdr(), attr });598}599600pub fn buildDone() void {601    p("{s}done\n", .{hdr()});602}603604pub fn pinDone(input: []const u8, commit: []const u8) void {605    p("{s}pinned {s} -> {s}\n", .{ hdr(), input, commit });606}607608pub fn unpinDone(input: []const u8) void {609    p("{s}unpinned {s}\n", .{ hdr(), input });610}611612pub fn hashResult(hash: []const u8) void {613    p("{s}\n", .{hash});614}615616pub fn fetchResult(hash: []const u8, url: []const u8) void {617    _ = url;618    p("{s}\n", .{hash});619}620621pub fn storeRepairStart() void {622    p("{s}repairing store\n", .{hdr()});623}624625pub fn storeVerifyStart() void {626    p("{s}verifying store\n", .{hdr()});627}628629pub fn storeGcDone(freed: []const u8) void {630    p("{s}freed {s}\n", .{ hdr(), freed });631}632633pub fn storePath(path: []const u8) void {634    p("{s}\n", .{path});635}636637pub fn pkgResult(key: []const u8, val: []const u8) void {638    p("   {s:<16}  {s}\n", .{ key, val });639}640641pub fn channelDone() void {642    p("{s}done\n", .{hdr()});643}644645pub fn flakeShowHeader(name: []const u8) void {646    p("{s}{s}\n\n", .{ hdr(), name });647}648649pub fn flakeShowEntry(kind: []const u8, name: []const u8, desc: []const u8) void {650    p("   {s:<12}  {s:<24}  {s}\n", .{ kind, name, desc });651}