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'use strict';
var Stream = require('stream');
var Path = require('path');
function gulpRename(obj) {
var stream = new Stream.Transform({objectMode: true});
function parsePath(path) {
var extname = Path.extname(path);
return {
dirname: Path.dirname(path),
basename: Path.basename(path, extname),
extname: extname
};
}
stream._transform = function(file, unused, callback) {
var parsedPath = parsePath(file.relative);
var path;
var type = typeof obj;
if (type === 'string' && obj !== '') {
path = obj;
} else if (type === 'function') {
obj(parsedPath);
path = Path.join(parsedPath.dirname, parsedPath.basename + parsedPath.extname);
} else if (type === 'object' && obj !== undefined && obj !== null) {
var dirname = 'dirname' in obj ? obj.dirname : parsedPath.dirname,
prefix = obj.prefix || '',
suffix = obj.suffix || '',
basename = 'basename' in obj ? obj.basename : parsedPath.basename,
extname = 'extname' in obj ? obj.extname : parsedPath.extname;
path = Path.join(dirname, prefix + basename + suffix + extname);
} else {
callback(new Error('Unsupported renaming parameter type supplied'), undefined);
return;
}
file.path = Path.join(file.base, path);
// Rename sourcemap if present
if (file.sourceMap) {
file.sourceMap.file = file.relative;
}
callback(null, file);
};
return stream;
}
module.exports = gulpRename;
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