mirror of
https://github.com/toddbluhm/env-cmd.git
synced 2025-12-08 18:23:33 +00:00
0738042dbb
- All env-cmd-examples repo cases passing - Added support for default .env-cmdrc.json file - Added flag and help text lib - Split up project into more reasonable files/chunks of code - Updated copyright year to 2019
78 lines
2.4 KiB
JavaScript
78 lines
2.4 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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var fs = require("fs");
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var path = require("path");
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var utils_1 = require("./utils");
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/**
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* Uses the cli passed env file path to get env vars
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*/
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function useCmdLine(envFilePath) {
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var absolutePath = utils_1.resolveEnvFilePath(envFilePath);
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if (!fs.existsSync(absolutePath)) {
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throw new Error("Invalid env file path (" + envFilePath + ").");
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}
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// Get the file extension
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var ext = path.extname(absolutePath).toLowerCase();
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var env;
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if (ext === '.json') {
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env = require(absolutePath);
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}
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else {
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var file = fs.readFileSync(absolutePath, { encoding: 'utf8' });
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env = parseEnvString(file);
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}
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return env;
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}
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exports.useCmdLine = useCmdLine;
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/**
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* Parse out all env vars from a given env file string and return an object
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*/
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function parseEnvString(envFileString) {
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// First thing we do is stripe out all comments
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envFileString = stripComments(envFileString.toString());
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// Next we stripe out all the empty lines
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envFileString = stripEmptyLines(envFileString);
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// Merge the file env vars with the current process env vars (the file vars overwrite process vars)
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return parseEnvVars(envFileString);
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}
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exports.parseEnvString = parseEnvString;
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/**
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* Parse out all env vars from an env file string
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*/
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function parseEnvVars(envString) {
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var envParseRegex = /^((.+?)[=](.*))$/gim;
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var matches = {};
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var match;
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while ((match = envParseRegex.exec(envString)) !== null) {
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// Note: match[1] is the full env=var line
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var key = match[2].trim();
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var value = match[3].trim() || '';
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// remove any surrounding quotes
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matches[key] = value.replace(/(^['"]|['"]$)/g, '');
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}
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return matches;
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}
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exports.parseEnvVars = parseEnvVars;
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/**
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* Strips out comments from env file string
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*/
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function stripComments(envString) {
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var commentsRegex = /(^#.*$)/gim;
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var match = commentsRegex.exec(envString);
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var newString = envString;
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while (match != null) {
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newString = newString.replace(match[1], '');
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match = commentsRegex.exec(envString);
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}
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return newString;
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}
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exports.stripComments = stripComments;
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/**
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* Strips out newlines from env file string
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*/
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function stripEmptyLines(envString) {
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var emptyLinesRegex = /(^\n)/gim;
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return envString.replace(emptyLinesRegex, '');
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}
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exports.stripEmptyLines = stripEmptyLines;
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