Initial commit

.gitignore

@@ -0,0 +1 @@
+node_modules/

.prettierrc

@@ -0,0 +1,21 @@
+{
+  "arrowParens": "avoid",
+  "bracketSpacing": true,
+  "endOfLine": "auto",
+  "filepath": "",
+  "htmlWhitespaceSensitivity": "css",
+  "insertPragma": false,
+  "jsxBracketSameLine": false,
+  "jsxSingleQuote": false,
+  "parser": "",
+  "printWidth": 80,
+  "proseWrap": "preserve",
+  "quoteProps": "as-needed",
+  "requirePragma": false,
+  "semi": true,
+  "singleQuote": true,
+  "tabWidth": 2,
+  "trailingComma": "es5",
+  "useTabs": false,
+  "vueIndentScriptAndStyle": false
+}

LICENSE

@@ -0,0 +1,19 @@
+Copyright (c) 2020 Dylan Baker dylan@simulacrum.party
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

index.js

@@ -0,0 +1,146 @@
+#!/usr/bin/env node
+
+const fs = require('fs');
+const minimist = require('minimist');
+const path = require('path');
+
+const defaultConfig = {
+  arrowParens: 'avoid',
+  bracketSpacing: true,
+  endOfLine: 'auto',
+  filepath: '',
+  htmlWhitespaceSensitivity: 'css',
+  insertPragma: false,
+  jsxBracketSameLine: false,
+  jsxSingleQuote: false,
+  parser: '',
+  printWidth: 80,
+  proseWrap: 'preserve',
+  quoteProps: 'as-needed',
+  requirePragma: false,
+  semi: true,
+  singleQuote: false,
+  tabWidth: 2,
+  trailingComma: 'none',
+  useTabs: false,
+  vueIndentScriptAndStyle: false,
+};
+
+const formats = {
+  json: {
+    filename: '.prettierrc',
+    generate: function() {
+      return JSON.stringify(defaultConfig, null, 2);
+    },
+  },
+  yaml: {
+    filename: '.prettierrc.yaml',
+    generate: function() {
+      return Object.entries(defaultConfig)
+        .map(([key, value]) => {
+          if (typeof value === 'string' && value === '') return `${key}: ''`;
+          return `${key}: ${value}`;
+        })
+        .join('\n');
+    },
+  },
+  toml: {
+    filename: '.prettierrc.toml',
+    generate: function() {
+      return Object.entries(defaultConfig)
+        .map(([key, value]) => {
+          if (typeof value === 'string') return `${key} = "${value}"`;
+          return `${key} = ${value}`;
+        })
+        .join('\n');
+    },
+  },
+  js: {
+    filename: '.prettierrc.js',
+    generate: function() {
+      const contents = Object.entries(defaultConfig)
+        .map(([key, value]) => {
+          if (typeof value === 'string') return `  ${key}: '${value}',`;
+          return `  ${key}: ${value},`;
+        })
+        .join('\n');
+      return `module.exports = {\n${contents}\n};`;
+    },
+  },
+  'package.json': {
+    filename: 'package.json',
+    generate: function() {
+      const file = path.resolve('package.json');
+      if (!fs.existsSync(file)) {
+        console.error(
+          'Error: no package.json file found in the current directory'
+        );
+        process.exit(0);
+      }
+      const data = JSON.parse(fs.readFileSync(file));
+      data.prettier = defaultConfig;
+      return JSON.stringify(data, null, 2);
+    },
+  },
+};
+
+function writeToFile(filename, data) {
+  fs.writeFile(path.resolve(filename), `${data}\n`, {}, () => {
+    console.log(`Wrote default config to ${filename}`);
+    process.exit(0);
+  });
+}
+
+function writeToStdout(data) {
+  process.stdout.write(`${data}\n`);
+  process.exit(0);
+}
+
+function help(logger) {
+  if (!logger) logger = console.log;
+
+  const formatDisplay = Object.keys(formats).join('|');
+
+  logger('USAGE:');
+  logger('    prettier-default-config [OPTIONS]');
+  logger();
+  logger('OPTIONS:');
+  logger('    --format <FORMAT> The config file format to generate.');
+  logger(`                      <${formatDisplay}>`);
+  logger('                      default: json');
+  logger();
+  logger('    --stdout          Write config to STDOUT rather than to a file');
+  logger();
+  logger('    --help            Prints help information');
+  process.exit(0);
+}
+
+function run() {
+  const args = minimist(process.argv);
+
+  if (args.help) help();
+
+  const format = formats[args.format ? args.format : 'json'];
+  if (format) {
+    const config = format.generate();
+
+    if (args.stdout) {
+      writeToStdout(config);
+    } else {
+      writeToFile(format.filename, config);
+    }
+  } else {
+    console.error('Error: invalid format');
+    console.error();
+    help(console.error);
+  }
+}
+
+module.exports = {
+  defaultConfig,
+  formats,
+};
+
+if (require.main === module) {
+  run();
+}

package-lock.json

@@ -0,0 +1,529 @@
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+  "name": "prettier-default-config",
+  "version": "0.1.0",
+  "lockfileVersion": 1,
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+      "dev": true,
+      "requires": {
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+          "dev": true
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+      "resolved": "https://registry.npmjs.org/yaml/-/yaml-1.7.2.tgz",
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+      "dev": true,
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+}

package.json

@@ -0,0 +1,25 @@
+{
+  "name": "prettier-default-config",
+  "version": "0.1.0",
+  "description": "Generate a prettier config file with all the possible options and their default values",
+  "bin": "index.js",
+  "scripts": {
+    "format": "prettier --write ./*.js",
+    "test": "tape test.js | faucet"
+  },
+  "author": "Dylan Baker <dylan@simulacrum.party>",
+  "license": "MIT",
+  "files": [
+    "index.js"
+  ],
+  "dependencies": {
+    "minimist": "^1.2.0"
+  },
+  "devDependencies": {
+    "faucet": "0.0.1",
+    "prettier": "^1.19.1",
+    "tape": "^4.13.0",
+    "toml": "^3.0.0",
+    "yaml": "^1.7.2"
+  }
+}

test.js

@@ -0,0 +1,38 @@
+const fs = require('fs');
+const test = require('tape');
+const TOML = require('toml');
+const YAML = require('yaml');
+
+const { defaultConfig, formats } = require('.');
+
+test('generate JSON', t => {
+  t.plan(1);
+  const result = formats.json.generate();
+  t.deepEqual(JSON.parse(result), defaultConfig);
+});
+
+test('generate TOML', t => {
+  t.plan(1);
+  const result = formats.toml.generate();
+  t.deepEqual(TOML.parse(result), defaultConfig);
+});
+
+test('generate YAML', t => {
+  t.plan(1);
+  const result = formats.yaml.generate();
+  t.deepEqual(YAML.parse(result), defaultConfig);
+});
+
+test('generate JS', t => {
+  t.plan(1);
+  const result = formats.js.generate();
+  t.deepEqual(eval(result), defaultConfig);
+});
+
+test('generate package.json', t => {
+  t.plan(1);
+  const before = JSON.parse(fs.readFileSync('package.json'));
+  const result = formats['package.json'].generate();
+  before.prettier = defaultConfig;
+  t.deepEqual(JSON.parse(result), before);
+});