aaac7fed
 liuqimichale
add
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var common = require('./common');
var fs = require('fs');
var path = require('path');
common.register('toEnd', _toEnd, {
pipeOnly: true,
wrapOutput: false,
});
//@
//@ ### ShellString.prototype.toEnd(file)
//@
//@ Examples:
//@
//@ ```javascript
//@ cat('input.txt').toEnd('output.txt');
//@ ```
//@
//@ Analogous to the redirect-and-append operator `>>` in Unix, but works with
//@ ShellStrings (such as those returned by `cat`, `grep`, etc).
function _toEnd(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.appendFileSync(file, this.stdout || this.toString(), 'utf8');
return this;
} catch (e) {
/* istanbul ignore next */
common.error('could not append to file (code ' + e.code + '): ' + file, { continue: true });
}
}
module.exports = _toEnd;
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