From 97e13e302bf22096658dc6c059e5d46a88413bc8 Mon Sep 17 00:00:00 2001 From: ZyLacx Date: Mon, 27 Dec 2021 17:15:32 +0100 Subject: [PATCH] Create main.js --- node_modules/dotenv/lib/main.js | 118 ++++++++++++++++++++++++++++++++ 1 file changed, 118 insertions(+) create mode 100644 node_modules/dotenv/lib/main.js diff --git a/node_modules/dotenv/lib/main.js b/node_modules/dotenv/lib/main.js new file mode 100644 index 0000000..43711f3 --- /dev/null +++ b/node_modules/dotenv/lib/main.js @@ -0,0 +1,118 @@ +/* @flow */ +/*:: + +type DotenvParseOptions = { + debug?: boolean +} + +// keys and values from src +type DotenvParseOutput = { [string]: string } + +type DotenvConfigOptions = { + path?: string, // path to .env file + encoding?: string, // encoding of .env file + debug?: string // turn on logging for debugging purposes +} + +type DotenvConfigOutput = { + parsed?: DotenvParseOutput, + error?: Error +} + +*/ + +const fs = require('fs') +const path = require('path') +const os = require('os') + +function log (message /*: string */) { + console.log(`[dotenv][DEBUG] ${message}`) +} + +const NEWLINE = '\n' +const RE_INI_KEY_VAL = /^\s*([\w.-]+)\s*=\s*(.*)?\s*$/ +const RE_NEWLINES = /\\n/g +const NEWLINES_MATCH = /\r\n|\n|\r/ + +// Parses src into an Object +function parse (src /*: string | Buffer */, options /*: ?DotenvParseOptions */) /*: DotenvParseOutput */ { + const debug = Boolean(options && options.debug) + const obj = {} + + // convert Buffers before splitting into lines and processing + src.toString().split(NEWLINES_MATCH).forEach(function (line, idx) { + // matching "KEY' and 'VAL' in 'KEY=VAL' + const keyValueArr = line.match(RE_INI_KEY_VAL) + // matched? + if (keyValueArr != null) { + const key = keyValueArr[1] + // default undefined or missing values to empty string + let val = (keyValueArr[2] || '') + const end = val.length - 1 + const isDoubleQuoted = val[0] === '"' && val[end] === '"' + const isSingleQuoted = val[0] === "'" && val[end] === "'" + + // if single or double quoted, remove quotes + if (isSingleQuoted || isDoubleQuoted) { + val = val.substring(1, end) + + // if double quoted, expand newlines + if (isDoubleQuoted) { + val = val.replace(RE_NEWLINES, NEWLINE) + } + } else { + // remove surrounding whitespace + val = val.trim() + } + + obj[key] = val + } else if (debug) { + log(`did not match key and value when parsing line ${idx + 1}: ${line}`) + } + }) + + return obj +} + +function resolveHome (envPath) { + return envPath[0] === '~' ? path.join(os.homedir(), envPath.slice(1)) : envPath +} + +// Populates process.env from .env file +function config (options /*: ?DotenvConfigOptions */) /*: DotenvConfigOutput */ { + let dotenvPath = path.resolve(process.cwd(), '.env') + let encoding /*: string */ = 'utf8' + let debug = false + + if (options) { + if (options.path != null) { + dotenvPath = resolveHome(options.path) + } + if (options.encoding != null) { + encoding = options.encoding + } + if (options.debug != null) { + debug = true + } + } + + try { + // specifying an encoding returns a string instead of a buffer + const parsed = parse(fs.readFileSync(dotenvPath, { encoding }), { debug }) + + Object.keys(parsed).forEach(function (key) { + if (!Object.prototype.hasOwnProperty.call(process.env, key)) { + process.env[key] = parsed[key] + } else if (debug) { + log(`"${key}" is already defined in \`process.env\` and will not be overwritten`) + } + }) + + return { parsed } + } catch (e) { + return { error: e } + } +} + +module.exports.config = config +module.exports.parse = parse