refactor(launcher): extract types, logging, and utilities

- launcher/types.ts: shared types, interfaces, and constants
- launcher/log.ts: logging infrastructure (COLORS, log, fail, etc.)
- launcher/util.ts: pure utilities, lang helpers, and child process runner
- runExternalCommand accepts childTracker param instead of referencing state
- inferWhisperLanguage placed in util.ts to avoid circular deps
This commit is contained in:
2026-02-17 03:22:04 -08:00
parent 37cc3a6b01
commit 518015f534
3 changed files with 478 additions and 0 deletions

65
launcher/log.ts Normal file
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import fs from "node:fs";
import path from "node:path";
import type { LogLevel } from "./types.js";
import { DEFAULT_MPV_LOG_FILE } from "./types.js";
export const COLORS = {
red: "\x1b[0;31m",
green: "\x1b[0;32m",
yellow: "\x1b[0;33m",
cyan: "\x1b[0;36m",
reset: "\x1b[0m",
};
export const LOG_PRI: Record<LogLevel, number> = {
debug: 10,
info: 20,
warn: 30,
error: 40,
};
export function shouldLog(level: LogLevel, configured: LogLevel): boolean {
return LOG_PRI[level] >= LOG_PRI[configured];
}
export function getMpvLogPath(): string {
const envPath = process.env.SUBMINER_MPV_LOG?.trim();
if (envPath) return envPath;
return DEFAULT_MPV_LOG_FILE;
}
export function appendToMpvLog(message: string): void {
const logPath = getMpvLogPath();
try {
fs.mkdirSync(path.dirname(logPath), { recursive: true });
fs.appendFileSync(
logPath,
`[${new Date().toISOString()}] ${message}\n`,
{ encoding: "utf8" },
);
} catch {
// ignore logging failures
}
}
export function log(level: LogLevel, configured: LogLevel, message: string): void {
if (!shouldLog(level, configured)) return;
const color =
level === "info"
? COLORS.green
: level === "warn"
? COLORS.yellow
: level === "error"
? COLORS.red
: COLORS.cyan;
process.stdout.write(
`${color}[${level.toUpperCase()}]${COLORS.reset} ${message}\n`,
);
appendToMpvLog(`[${level.toUpperCase()}] ${message}`);
}
export function fail(message: string): never {
process.stderr.write(`${COLORS.red}[ERROR]${COLORS.reset} ${message}\n`);
appendToMpvLog(`[ERROR] ${message}`);
process.exit(1);
}

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import path from "node:path";
import os from "node:os";
export const VIDEO_EXTENSIONS = new Set([
"mkv",
"mp4",
"avi",
"webm",
"mov",
"flv",
"wmv",
"m4v",
"ts",
"m2ts",
]);
export const ROFI_THEME_FILE = "subminer.rasi";
export const DEFAULT_SOCKET_PATH = "/tmp/subminer-socket";
export const DEFAULT_YOUTUBE_PRIMARY_SUB_LANGS = ["ja", "jpn"];
export const DEFAULT_YOUTUBE_SECONDARY_SUB_LANGS = ["en", "eng"];
export const YOUTUBE_SUB_EXTENSIONS = new Set([".srt", ".vtt", ".ass"]);
export const YOUTUBE_AUDIO_EXTENSIONS = new Set([
".m4a",
".mp3",
".webm",
".opus",
".wav",
".aac",
".flac",
]);
export const DEFAULT_YOUTUBE_SUBGEN_OUT_DIR = path.join(
os.homedir(),
".cache",
"subminer",
"youtube-subs",
);
export const DEFAULT_MPV_LOG_FILE = path.join(
os.homedir(),
".cache",
"SubMiner",
"mp.log",
);
export const DEFAULT_YOUTUBE_YTDL_FORMAT = "bestvideo*+bestaudio/best";
export const DEFAULT_JIMAKU_API_BASE_URL = "https://jimaku.cc";
export const DEFAULT_MPV_SUBMINER_ARGS = [
"--sub-auto=fuzzy",
"--sub-file-paths=.;subs;subtitles",
"--sid=auto",
"--secondary-sid=auto",
"--secondary-sub-visibility=no",
"--slang=ja,jpn,en,eng",
] as const;
export type LogLevel = "debug" | "info" | "warn" | "error";
export type YoutubeSubgenMode = "automatic" | "preprocess" | "off";
export type Backend = "auto" | "hyprland" | "x11" | "macos";
export type JimakuLanguagePreference = "ja" | "en" | "none";
export interface Args {
backend: Backend;
directory: string;
recursive: boolean;
profile: string;
startOverlay: boolean;
youtubeSubgenMode: YoutubeSubgenMode;
whisperBin: string;
whisperModel: string;
youtubeSubgenOutDir: string;
youtubeSubgenAudioFormat: string;
youtubeSubgenKeepTemp: boolean;
youtubePrimarySubLangs: string[];
youtubeSecondarySubLangs: string[];
youtubeAudioLangs: string[];
youtubeWhisperSourceLanguage: string;
useTexthooker: boolean;
autoStartOverlay: boolean;
texthookerOnly: boolean;
useRofi: boolean;
logLevel: LogLevel;
target: string;
targetKind: "" | "file" | "url";
jimakuApiKey: string;
jimakuApiKeyCommand: string;
jimakuApiBaseUrl: string;
jimakuLanguagePreference: JimakuLanguagePreference;
jimakuMaxEntryResults: number;
jellyfin: boolean;
jellyfinLogin: boolean;
jellyfinLogout: boolean;
jellyfinPlay: boolean;
jellyfinServer: string;
jellyfinUsername: string;
jellyfinPassword: string;
}
export interface LauncherYoutubeSubgenConfig {
mode?: YoutubeSubgenMode;
whisperBin?: string;
whisperModel?: string;
primarySubLanguages?: string[];
secondarySubLanguages?: string[];
jimakuApiKey?: string;
jimakuApiKeyCommand?: string;
jimakuApiBaseUrl?: string;
jimakuLanguagePreference?: JimakuLanguagePreference;
jimakuMaxEntryResults?: number;
}
export interface LauncherJellyfinConfig {
enabled?: boolean;
serverUrl?: string;
username?: string;
accessToken?: string;
userId?: string;
defaultLibraryId?: string;
pullPictures?: boolean;
iconCacheDir?: string;
}
export interface PluginRuntimeConfig {
autoStartOverlay: boolean;
socketPath: string;
}
export interface CommandExecOptions {
allowFailure?: boolean;
captureStdout?: boolean;
logLevel?: LogLevel;
commandLabel?: string;
streamOutput?: boolean;
env?: NodeJS.ProcessEnv;
}
export interface CommandExecResult {
code: number;
stdout: string;
stderr: string;
}
export interface SubtitleCandidate {
path: string;
lang: "primary" | "secondary";
ext: string;
size: number;
source: "manual" | "auto" | "whisper" | "whisper-translate";
}
export interface YoutubeSubgenOutputs {
basename: string;
primaryPath?: string;
secondaryPath?: string;
}
export interface MpvTrack {
type?: string;
id?: number;
lang?: string;
title?: string;
}
export interface JellyfinSessionConfig {
serverUrl: string;
accessToken: string;
userId: string;
defaultLibraryId: string;
pullPictures: boolean;
iconCacheDir: string;
}
export interface JellyfinLibraryEntry {
id: string;
name: string;
kind: string;
}
export interface JellyfinItemEntry {
id: string;
name: string;
type: string;
display: string;
}
export interface JellyfinGroupEntry {
id: string;
name: string;
type: string;
display: string;
}

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import fs from "node:fs";
import path from "node:path";
import os from "node:os";
import { spawn } from "node:child_process";
import type { LogLevel, CommandExecOptions, CommandExecResult } from "./types.js";
import { log } from "./log.js";
export function sleep(ms: number): Promise<void> {
return new Promise((resolve) => setTimeout(resolve, ms));
}
export function isExecutable(filePath: string): boolean {
try {
fs.accessSync(filePath, fs.constants.X_OK);
return true;
} catch {
return false;
}
}
export function commandExists(command: string): boolean {
const pathEnv = process.env.PATH ?? "";
for (const dir of pathEnv.split(path.delimiter)) {
if (!dir) continue;
const full = path.join(dir, command);
if (isExecutable(full)) return true;
}
return false;
}
export function resolvePathMaybe(input: string): string {
if (input.startsWith("~")) {
return path.join(os.homedir(), input.slice(1));
}
return input;
}
export function resolveBinaryPathCandidate(input: string): string {
const trimmed = input.trim();
if (!trimmed) return "";
const unquoted = trimmed.replace(/^"(.*)"$/, "$1").replace(/^'(.*)'$/, "$1");
return resolvePathMaybe(unquoted);
}
export function realpathMaybe(filePath: string): string {
try {
return fs.realpathSync(filePath);
} catch {
return path.resolve(filePath);
}
}
export function isUrlTarget(target: string): boolean {
return /^https?:\/\//.test(target) || /^ytsearch:/.test(target);
}
export function isYoutubeTarget(target: string): boolean {
return (
/^ytsearch:/.test(target) ||
/^https?:\/\/(www\.)?(youtube\.com|youtu\.be)\//.test(target)
);
}
export function sanitizeToken(value: string): string {
return String(value)
.toLowerCase()
.replace(/[^a-z0-9._-]+/g, "-")
.replace(/-+/g, "-")
.replace(/^-|-$/g, "");
}
export function normalizeBasename(value: string, fallback: string): string {
const safe = sanitizeToken(value.replace(/[\\/]+/g, "-"));
if (safe) return safe;
const fallbackSafe = sanitizeToken(fallback);
if (fallbackSafe) return fallbackSafe;
return `${Date.now()}`;
}
export function normalizeLangCode(value: string): string {
return value.trim().toLowerCase().replace(/[^a-z0-9-]+/g, "");
}
export function uniqueNormalizedLangCodes(values: string[]): string[] {
const seen = new Set<string>();
const out: string[] = [];
for (const value of values) {
const normalized = normalizeLangCode(value);
if (!normalized || seen.has(normalized)) continue;
seen.add(normalized);
out.push(normalized);
}
return out;
}
export function escapeRegExp(value: string): string {
return value.replace(/[.*+?^${}()|[\]\\]/g, "\\$&");
}
export function parseBoolLike(value: string): boolean | null {
const normalized = value.trim().toLowerCase();
if (
normalized === "yes" ||
normalized === "true" ||
normalized === "1" ||
normalized === "on"
) {
return true;
}
if (
normalized === "no" ||
normalized === "false" ||
normalized === "0" ||
normalized === "off"
) {
return false;
}
return null;
}
export function inferWhisperLanguage(langCodes: string[], fallback: string): string {
for (const lang of uniqueNormalizedLangCodes(langCodes)) {
if (lang === "jpn") return "ja";
if (lang.length >= 2) return lang.slice(0, 2);
}
return fallback;
}
export function runExternalCommand(
executable: string,
args: string[],
opts: CommandExecOptions = {},
childTracker?: Set<ReturnType<typeof spawn>>,
): Promise<CommandExecResult> {
const allowFailure = opts.allowFailure === true;
const captureStdout = opts.captureStdout === true;
const configuredLogLevel = opts.logLevel ?? "info";
const commandLabel = opts.commandLabel || executable;
const streamOutput = opts.streamOutput === true;
return new Promise((resolve, reject) => {
log("debug", configuredLogLevel, `[${commandLabel}] spawn: ${executable} ${args.join(" ")}`);
const child = spawn(executable, args, {
stdio: ["ignore", "pipe", "pipe"],
env: { ...process.env, ...opts.env },
});
childTracker?.add(child);
let stdout = "";
let stderr = "";
let stdoutBuffer = "";
let stderrBuffer = "";
const flushLines = (
buffer: string,
level: LogLevel,
sink: (remaining: string) => void,
): void => {
const lines = buffer.split(/\r?\n/);
const remaining = lines.pop() ?? "";
for (const line of lines) {
const trimmed = line.trim();
if (trimmed.length > 0) {
log(level, configuredLogLevel, `[${commandLabel}] ${trimmed}`);
}
}
sink(remaining);
};
child.stdout.on("data", (chunk: Buffer) => {
const text = chunk.toString();
if (captureStdout) stdout += text;
if (streamOutput) {
stdoutBuffer += text;
flushLines(stdoutBuffer, "debug", (remaining) => {
stdoutBuffer = remaining;
});
}
});
child.stderr.on("data", (chunk: Buffer) => {
const text = chunk.toString();
stderr += text;
if (streamOutput) {
stderrBuffer += text;
flushLines(stderrBuffer, "debug", (remaining) => {
stderrBuffer = remaining;
});
}
});
child.on("error", (error) => {
childTracker?.delete(child);
reject(new Error(`Failed to start "${executable}": ${error.message}`));
});
child.on("close", (code) => {
childTracker?.delete(child);
if (streamOutput) {
const trailingOut = stdoutBuffer.trim();
if (trailingOut.length > 0) {
log("debug", configuredLogLevel, `[${commandLabel}] ${trailingOut}`);
}
const trailingErr = stderrBuffer.trim();
if (trailingErr.length > 0) {
log("debug", configuredLogLevel, `[${commandLabel}] ${trailingErr}`);
}
}
log(
code === 0 ? "debug" : "warn",
configuredLogLevel,
`[${commandLabel}] exit code ${code ?? 1}`,
);
if (code !== 0 && !allowFailure) {
const commandString = `${executable} ${args.join(" ")}`;
reject(
new Error(
`Command failed (${commandString}): ${stderr.trim() || `exit code ${code}`}`,
),
);
return;
}
resolve({ code: code ?? 1, stdout, stderr });
});
});
}