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Add commander lib to handle CLI

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√(noham)²
2026-06-19 15:29:47 +02:00
parent 099a76c39e
commit 3e5545ddbd
4 changed files with 49 additions and 49 deletions
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10
package-lock.json generated
View File

@@ -8,6 +8,7 @@
"name": "html2pdf-reader",
"version": "1.0.0",
"dependencies": {
"commander": "^15.0.0",
"puppeteer": "^24.0.0"
}
},
@@ -310,6 +311,15 @@
"integrity": "sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==",
"license": "MIT"
},
"node_modules/commander": {
"version": "15.0.0",
"resolved": "https://registry.npmjs.org/commander/-/commander-15.0.0.tgz",
"integrity": "sha512-z67u4ZhzCL/Tydu1lJARtEZYWbWaN7oYLHbsuzocr6y4N6WZAagG3RQ4FW61V1/0+jImpj293XfrcYnd1qxtPg==",
"license": "MIT",
"engines": {
"node": ">=22.12.0"
}
},
"node_modules/cosmiconfig": {
"version": "9.0.2",
"resolved": "https://registry.npmjs.org/cosmiconfig/-/cosmiconfig-9.0.2.tgz",

1
package.json
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@@ -10,6 +10,7 @@
"test": "node src/test/test.js"
},
"dependencies": {
"commander": "^15.0.0",
"puppeteer": "^24.0.0"
}
}

81
src/cli.js
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@@ -1,4 +1,4 @@
import process from "node:process";
import { Command } from "commander";
export const VALID_THEMES = [
"light",
@@ -11,49 +11,42 @@ export const VALID_THEMES = [
"nord-dark",
];
export function parseArgs() {
const args = process.argv.slice(2);
const url = args[0];
const opts = { theme: null, css: null, prefs: null, output: null };
for (let i = 1; i < args.length; i++) {
if (args[i] === "--theme" && args[i + 1]) opts.theme = args[++i];
else if (args[i] === "--css" && args[i + 1]) opts.css = args[++i];
else if (args[i] === "--prefs" && args[i + 1]) opts.prefs = args[++i];
else if (args[i] === "--output" && args[i + 1]) opts.output = args[++i];
}
if (
!opts.theme &&
args[1] &&
!args[1].startsWith("-") &&
VALID_THEMES.includes(args[1])
) {
opts.theme = args[1];
}
return { url, opts };
}
const program = new Command();
export function printUsage() {
console.error("Usage: node src/index.js <URL> [theme] [options]");
console.error("");
console.error("Options:");
console.error(
" --theme <theme> Reader View theme (" + VALID_THEMES.join(", ") + ")",
program
.name("html2pdf-reader")
.description("Convert web articles to PDF using Reader View and Puppeteer")
.argument("<url>", "URL of the article to convert")
.option(
"-t, --theme <theme>",
`Reader View theme (${VALID_THEMES.join(", ")})`,
)
.option("-c, --css <path>", "path to custom CSS file")
.option("-p, --prefs <path>", "path to extension preferences JSON")
.option(
"-o, --output <path>",
"output file path (default: ./output/<title>.pdf)",
)
.addHelpText(
"after",
`
Examples:
node src/index.js <URL>
node src/index.js <URL> --theme dark --css config/rules.css
npm start -- <URL> --theme dark --css config/rules.css
`,
);
console.error(" --css <path> Path to custom CSS file");
console.error(" --prefs <path> Path to extension preferences JSON");
console.error(
" --output <path> Output file path (default: ./output/<title>.pdf)",
);
console.error("");
console.error("Examples:");
console.error(" node src/index.js <URL>");
console.error(" node src/index.js <URL> dark --css config/rules.css");
console.error("");
console.error("IMPORTANT: npm start consumes --flags as npm config.");
console.error("Use node directly or add -- before flags:");
console.error(
" node src/index.js <URL> --theme dark --css config/rules.css",
);
console.error(" npm start -- <URL> --theme dark --css config/rules.css");
console.error("");
export function parseArgs() {
program.parse(process.argv);
const opts = program.opts();
return {
url: program.args[0],
opts: {
theme: opts.theme || null,
css: opts.css || null,
prefs: opts.prefs || null,
output: opts.output || null,
},
};
}

6
src/index.js
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@@ -1,6 +1,6 @@
import process from "node:process";
import path from "node:path";
import { parseArgs, printUsage, VALID_THEMES } from "./cli.js";
import { parseArgs, VALID_THEMES } from "./cli.js";
import { loadPreferences, readCustomCss } from "./config.js";
import {
checkExtension,
@@ -27,10 +27,6 @@ const EXTENSION_BASE = "chrome-extension://";
async function main() {
const { url, opts } = parseArgs();
if (!url) {
printUsage();
process.exit(1);
}
checkExtension();