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node_modules/shelljs/src/to.js 960 Bytes
aaac7fed   liuqimichale   add
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  var common = require('./common');
  var fs = require('fs');
  var path = require('path');
  
  common.register('to', _to, {
    pipeOnly: true,
    wrapOutput: false,
  });
  
  //@
  //@ ### ShellString.prototype.to(file)
  //@
  //@ Examples:
  //@
  //@ ```javascript
  //@ cat('input.txt').to('output.txt');
  //@ ```
  //@
  //@ Analogous to the redirection operator `>` in Unix, but works with
  //@ ShellStrings (such as those returned by `cat`, `grep`, etc). _Like Unix
  //@ redirections, `to()` will overwrite any existing file!_
  function _to(options, file) {
    if (!file) common.error('wrong arguments');
  
    if (!fs.existsSync(path.dirname(file))) {
      common.error('no such file or directory: ' + path.dirname(file));
    }
  
    try {
      fs.writeFileSync(file, this.stdout || this.toString(), 'utf8');
      return this;
    } catch (e) {
      /* istanbul ignore next */
      common.error('could not write to file (code ' + e.code + '): ' + file, { continue: true });
    }
  }
  module.exports = _to;