'use strict';
|
|
Object.defineProperty(exports, "__esModule", {
|
value: true
|
});
|
exports.default = varValueConvert;
|
|
var _isWindows = require('./is-windows');
|
|
var _isWindows2 = _interopRequireDefault(_isWindows);
|
|
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
|
|
var pathLikeEnvVarWhitelist = new Set(['PATH', 'NODE_PATH']);
|
|
/**
|
* This will transform UNIX-style list values to Windows-style.
|
* For example, the value of the $PATH variable "/usr/bin:/usr/local/bin:."
|
* will become "/usr/bin;/usr/local/bin;." on Windows.
|
* @param {String} varValue Original value of the env variable
|
* @param {String} varName Original name of the env variable
|
* @returns {String} Converted value
|
*/
|
function replaceListDelimiters(varValue) {
|
var varName = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : '';
|
|
var targetSeparator = (0, _isWindows2.default)() ? ';' : ':';
|
if (!pathLikeEnvVarWhitelist.has(varName)) {
|
return varValue;
|
}
|
|
return varValue.replace(/(\\*):/g, function (match, backslashes) {
|
if (backslashes.length % 2) {
|
// Odd number of backslashes preceding it means it's escaped,
|
// remove 1 backslash and return the rest as-is
|
return match.substr(1);
|
}
|
return backslashes + targetSeparator;
|
});
|
}
|
|
/**
|
* This will attempt to resolve the value of any env variables that are inside
|
* this string. For example, it will transform this:
|
* cross-env FOO=$NODE_ENV BAR=\\$NODE_ENV echo $FOO $BAR
|
* Into this:
|
* FOO=development BAR=$NODE_ENV echo $FOO
|
* (Or whatever value the variable NODE_ENV has)
|
* Note that this function is only called with the right-side portion of the
|
* env var assignment, so in that example, this function would transform
|
* the string "$NODE_ENV" into "development"
|
* @param {String} varValue Original value of the env variable
|
* @returns {String} Converted value
|
*/
|
function resolveEnvVars(varValue) {
|
var envUnixRegex = /(\\*)(\$(\w+)|\${(\w+)})/g; // $my_var or ${my_var} or \$my_var
|
return varValue.replace(envUnixRegex, function (_, escapeChars, varNameWithDollarSign, varName, altVarName) {
|
// do not replace things preceded by a odd number of \
|
if (escapeChars.length % 2 === 1) {
|
return varNameWithDollarSign;
|
}
|
return escapeChars.substr(0, escapeChars.length / 2) + (process.env[varName || altVarName] || '');
|
});
|
}
|
|
/**
|
* Converts an environment variable value to be appropriate for the current OS.
|
* @param {String} originalValue Original value of the env variable
|
* @param {String} originalName Original name of the env variable
|
* @returns {String} Converted value
|
*/
|
function varValueConvert(originalValue, originalName) {
|
return resolveEnvVars(replaceListDelimiters(originalValue, originalName));
|
}
|
