Code coverage report for rename/index.js

Statements: 100% (34 / 34)      Branches: 100% (22 / 22)      Functions: 100% (6 / 6)      Lines: 100% (33 / 33)      Ignored: none     

All files » rename/ » index.js
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'use strict';
 
var dirname = require('path').dirname;
var basename = require('path').basename;
var extname = require('path').extname;
var join = require('path').join;
 
module.exports = function rename(filepath, opt) {
  var parsedPath = parsePath(filepath), result = {};
 
  if (typeof opt === 'string') {
    if (opt) filepath = opt;
 
  } else if (isFunction(opt)) {
    result = opt(parsedPath) || parsedPath;
    filepath = joinPath(result);
 
  } else if (isObject(opt)) {
    result.dirname = choose('dirname', opt, parsedPath);
    result.extname = choose('extname', opt, parsedPath);
    result.basename = [
      opt.prefix || '',
      choose('basename', opt, parsedPath),
      opt.suffix || ''
    ].join('');
    result.origin = parsedPath.origin;
 
    filepath = joinPath(result);
 
  } else {
    throw new Error('Unsupported renaming parameter type supplied');
  }
 
  return filepath;
};
 
function parsePath(path) {
  var ext = extname(path);
  return {
    dirname: dirname(path),
    basename: basename(path, ext),
    extname: ext,
    origin: path
  };
}
 
function isObject(obj) {
  return Object.prototype.toString.call(obj) === '[object Object]';
}
 
function isFunction(fun) {
  return Object.prototype.toString.call(fun) === '[object Function]';
}
 
function joinPath(path) {
  var filepath = path.dirname !== '' ?
    join(path.dirname, path.basename + path.extname) :
    path.basename + path.extname;
 
  if (path.origin.substring(0,2) === './') {
    filepath = './' + filepath;
  }
  return filepath;
}
 
function choose(name, changed, origin) {
  return name in changed ? (changed[name] || '') : origin[name];
}