feat: initial setup (#1)

* feat: add initial version of script

* fix: add fallback to undefined description and change default headers

* fix: use start and end tags to replace content

* refactor: move logic to inside generate folder

* feat: add CLI interactivity

* fix: properly handle errors when parsing snippets

* chore: change package name

* chore: add more config to package.json

.gitignore

@@ -0,0 +1,3 @@
+dist
+node_modules
+.DS_Store

.npmrc

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+package-lock=false
+save-exact=true

package.json

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+{
+  "name": "snippets-table",
+  "version": "0.0.0-semantically-released",
+  "description": "Tool to easily manage a table of snippets",
+  "main": "dist/cli.js",
+  "bin": {
+    "snippets-table": "dist/cli.js"
+  },
+  "files": [
+    "dist"
+  ],
+  "scripts": {
+    "build": "kcd-scripts build",
+    "lint": "kcd-scripts lint"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/arthurdenner/snippets-table.git"
+  },
+  "keywords": [
+    "snippets-table"
+  ],
+  "author": "Arthur Denner <arthurdenner7@gmail.com>",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/arthurdenner/snippets-table/issues"
+  },
+  "homepage": "https://github.com/arthurdenner/snippets-table#readme",
+  "devDependencies": {
+    "kcd-scripts": "5.6.1"
+  },
+  "dependencies": {
+    "@babel/runtime": "7.9.2",
+    "chalk": "3.0.0",
+    "inquirer": "7.1.0",
+    "prettier": "2.0.2",
+    "yargs": "15.3.1"
+  },
+  "eslintConfig": {
+    "extends": "./node_modules/kcd-scripts/eslint.js",
+    "rules": {
+      "no-process-exit": "off"
+    }
+  }
+}

src/cli.js

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+#!/usr/bin/env node
+
+const inquirer = require('inquirer');
+const yargs = require('yargs');
+const generate = require('./generate');
+
+const yargv = yargs
+  .help('help')
+  .alias('h', 'help')
+  .alias('v', 'version')
+  .version()
+  .recommendCommands()
+  .command('generate', 'Generate the table of snippets')
+  .usage('Usage: $0 generate')
+  .default('pathToREADME', 'README.md')
+  .default('pathToSnippets', 'snippets/snippets.json')
+  .default('headers', ['Prefix', 'Name', 'Description']);
+
+function promptForCommand({ argv }) {
+  const questions = [
+    {
+      type: 'list',
+      name: 'command',
+      message: 'What do you want to do?',
+      choices: [
+        {
+          name: 'Re-generate the table of snippets',
+          value: 'generate',
+        },
+      ],
+      when: !argv._[0],
+      default: 0,
+    },
+  ];
+
+  return inquirer.prompt(questions).then(answers => {
+    return answers.command || argv._[0];
+  });
+}
+
+promptForCommand(yargv).then(command => {
+  switch (command) {
+    case 'generate':
+      return generate(yargv.parsed.argv);
+    default:
+      throw new Error(`Unknown command ${command}`);
+  }
+});

src/generate/index.js

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+/* eslint-disable no-console */
+
+const fs = require('fs');
+const chalk = require('chalk');
+const prettier = require('prettier');
+
+const START_TAG =
+  '<!-- SNIPPETS-TABLE:START - Do not remove or modify this line -->';
+const END_TAG = '<!-- SNIPPETS-TABLE:END -->';
+const readFile = path => fs.promises.readFile(path, 'utf8');
+const getPrefix = p => (Array.isArray(p) ? p.join(', ') : p);
+
+function createTableLines(snippets, headers) {
+  const separatorLine = headers.reduce(acc => acc.concat(`--- | `), '\n| ');
+  const headersLine = headers.reduce((acc, h) => acc.concat(`${h} | `), '| ');
+  const bodyLines = Object.keys(snippets).reduce((acc, key) => {
+    const { description = '---', prefix } = snippets[key];
+    const newLine = `\n| \`${getPrefix(prefix)}\` | ${key} | ${description} |`;
+
+    return acc.concat(newLine);
+  }, '');
+  const table = headersLine.concat(separatorLine, bodyLines);
+
+  return prettier.format(table, { parser: 'markdown' }).trim();
+}
+
+async function generateTable({ pathToREADME, pathToSnippets, headers }) {
+  try {
+    const readme = await readFile(pathToREADME);
+    const regex = RegExp(`${START_TAG}([\\s\\S]*?)${END_TAG}`);
+
+    if (!regex.test(readme)) {
+      throw Error("Couldn't find start and end tags");
+    }
+
+    let snippets = await readFile(pathToSnippets);
+
+    try {
+      snippets = JSON.parse(snippets);
+    } catch (err) {
+      console.error(chalk.red(err.message));
+      throw Error(`There was an error parsing ${pathToSnippets}`);
+    }
+
+    const snippetsLines = createTableLines(snippets, headers);
+    const replace = START_TAG.concat('\n\n', snippetsLines, '\n\n', END_TAG);
+    const newReadme = readme.replace(regex, replace);
+
+    await fs.promises.writeFile(pathToREADME, newReadme, 'utf-8');
+
+    console.log(chalk.green(`${pathToREADME} updated!`));
+  } catch (err) {
+    console.error(chalk.red(err.message));
+    process.exit(1);
+  }
+}
+
+module.exports = generateTable;