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var path = require('path');
var bowerJson = require('bower-json');
var Q = require('q');
// The valid options are the same as bower-json#readFile.
// If the "assume" option is passed, it will be used if no json file was found
// This promise is resolved with [json, deprecated, assumed]
// - json: The read json
// - deprecated: The deprecated filename being used or false otherwise
// - assumed: True if a dummy json was returned if no json file was found, false otherwise
function readJson(file, options) {
options = options || {};
// Read
return Q.nfcall(bowerJson.read, file, options)
.spread(function (json, jsonFile) {
var deprecated;
if (options.logger) {
var issues = bowerJson.getIssues(json);
issues.warnings.forEach(function (warning) {
options.logger.warn('invalid-meta', warning);
});
}
jsonFile = path.basename(jsonFile);
deprecated = jsonFile === 'component.json' ? jsonFile : false;
return [json, deprecated, false];
}, function (err) {
// No json file was found, assume one
if (err.code === 'ENOENT' && options.assume) {
return [bowerJson.parse(options.assume, options), false, true];
}
err.details = err.message;
if (err.file) {
err.message = 'Failed to read ' + err.file;
err.data = { filename: err.file };
} else {
err.message = 'Failed to read json from ' + file;
}
throw err;
});
}
module.exports = readJson;
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