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4 years ago
//
'use strict';
const os = require('os');
const createExplorer = require('./createExplorer');
const loaders = require('./loaders');
module.exports = cosmiconfig;
function cosmiconfig(
moduleName ,
options
) {
options = options || {};
const defaults = {
packageProp: moduleName,
searchPlaces: [
'package.json',
`.${moduleName}rc`,
`.${moduleName}rc.json`,
`.${moduleName}rc.yaml`,
`.${moduleName}rc.yml`,
`.${moduleName}rc.js`,
`${moduleName}.config.js`,
],
ignoreEmptySearchPlaces: true,
stopDir: os.homedir(),
cache: true,
transform: identity,
};
const normalizedOptions = Object.assign(
{},
defaults,
options,
{
loaders: normalizeLoaders(options.loaders),
}
);
return createExplorer(normalizedOptions);
}
cosmiconfig.loadJs = loaders.loadJs;
cosmiconfig.loadJson = loaders.loadJson;
cosmiconfig.loadYaml = loaders.loadYaml;
function normalizeLoaders(rawLoaders ) {
const defaults = {
'.js': { sync: loaders.loadJs, async: loaders.loadJs },
'.json': { sync: loaders.loadJson, async: loaders.loadJson },
'.yaml': { sync: loaders.loadYaml, async: loaders.loadYaml },
'.yml': { sync: loaders.loadYaml, async: loaders.loadYaml },
noExt: { sync: loaders.loadYaml, async: loaders.loadYaml },
};
if (!rawLoaders) {
return defaults;
}
return Object.keys(rawLoaders).reduce((result, ext) => {
const entry = rawLoaders && rawLoaders[ext];
if (typeof entry === 'function') {
result[ext] = { sync: entry, async: entry };
} else {
result[ext] = entry;
}
return result;
}, defaults);
}
function identity(x) {
return x;
}