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keksAccountGUI/node_modulesOLD/find-babel-config/lib/index.js

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2019-08-11 18:48:02 +00:00
'use strict';
var path = require('path');
var fs = require('fs');
var JSON5 = require('json5');
var pathExists = require('path-exists');
var INFINITY = 1 / 0;
var BABELRC_FILENAME = '.babelrc';
var BABELRC_JS_FILENAME = '.babelrc.js';
var BABEL_CONFIG_JS_FILENAME = 'babel.config.js';
var PACKAGE_FILENAME = 'package.json';
var nullConf = { file: null, config: null };
function getBabelJsConfig(file) {
// eslint-disable-next-line global-require, import/no-dynamic-require
var configModule = require(file);
if (typeof configModule === 'function') {
return configModule();
}
// eslint-disable-next-line no-underscore-dangle
return configModule && configModule.__esModule ? configModule.default : configModule;
}
function asyncFind(resolve, dir, depth) {
if (depth < 0) {
return resolve(nullConf);
}
var babelrc = path.join(dir, BABELRC_FILENAME);
return pathExists(babelrc).then(function (exists) {
if (exists) {
fs.readFile(babelrc, 'utf8', function (err, data) {
if (!err) {
resolve({
file: babelrc,
config: JSON5.parse(data)
});
}
});
}
return exists;
}).then(function (exists) {
if (!exists) {
var babelJSrc = path.join(dir, BABELRC_JS_FILENAME);
return pathExists(babelJSrc).then(function (ex) {
if (ex) {
var config = getBabelJsConfig(babelJSrc);
resolve({
file: babelJSrc,
config
});
}
});
}
return exists;
}).then(function (exists) {
if (!exists) {
var packageFile = path.join(dir, PACKAGE_FILENAME);
return pathExists(packageFile).then(function (ex) {
if (ex) {
fs.readFile(packageFile, 'utf8', function (err, data) {
var packageJson = JSON.parse(data);
if (packageJson.babel) {
resolve({
file: packageFile,
config: packageJson.babel
});
}
});
}
});
}
return exists;
}).then(function (exists) {
if (!exists) {
var babelConfigJSrc = path.join(dir, BABEL_CONFIG_JS_FILENAME);
return pathExists(babelConfigJSrc).then(function (ex) {
if (ex) {
var config = getBabelJsConfig(babelConfigJSrc);
resolve({
file: babelConfigJSrc,
config
});
}
});
}
return exists;
}).then(function (exists) {
if (!exists) {
var nextDir = path.dirname(dir);
if (nextDir === dir) {
resolve(nullConf);
} else {
asyncFind(resolve, nextDir, depth - 1);
}
}
});
}
module.exports = function findBabelConfig(start) {
var depth = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : INFINITY;
if (!start) {
return new Promise(function (resolve) {
return resolve(nullConf);
});
}
var dir = path.isAbsolute(start) ? start : path.join(process.cwd(), start);
return new Promise(function (resolve) {
asyncFind(resolve, dir, depth);
});
};
module.exports.sync = function findBabelConfigSync(start) {
var depth = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : INFINITY;
if (!start) {
return nullConf;
}
var dir = path.isAbsolute(start) ? start : path.join(process.cwd(), start);
var loopLeft = depth;
// eslint-disable-next-line no-cond-assign
do {
var babelrc = path.join(dir, BABELRC_FILENAME);
if (pathExists.sync(babelrc)) {
var babelrcContent = fs.readFileSync(babelrc, 'utf8');
return {
file: babelrc,
config: JSON5.parse(babelrcContent)
};
}
var babelJSrc = path.join(dir, BABELRC_JS_FILENAME);
if (pathExists.sync(babelJSrc)) {
var config = getBabelJsConfig(babelJSrc);
return {
file: babelJSrc,
config
};
}
var babelConfigJSrc = path.join(dir, BABEL_CONFIG_JS_FILENAME);
if (pathExists.sync(babelConfigJSrc)) {
var _config = getBabelJsConfig(babelConfigJSrc);
return {
file: babelConfigJSrc,
config: _config
};
}
var packageFile = path.join(dir, PACKAGE_FILENAME);
if (pathExists.sync(packageFile)) {
var packageContent = fs.readFileSync(packageFile, 'utf8');
var packageJson = JSON.parse(packageContent);
if (packageJson.babel) {
return {
file: packageFile,
config: packageJson.babel
};
}
}
if (loopLeft === 0) {
return nullConf;
}
loopLeft -= 1;
} while (dir !== (dir = path.dirname(dir)));
return nullConf;
};