| 1 | var fs = require('fs');
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| 2 | var spawn = require('child_process').spawn;
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| 3 |
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| 4 | var when = require('when');
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| 5 |
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| 6 | function checkAvailable(){
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| 7 | var pkgName = JSON.parse(fs.readFileSync('./package.json', 'utf-8')).name;
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| 8 | var defer = when.defer();
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| 9 | var result = '';
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| 10 | var cmd = 'npm';
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| 11 | var args = ['view', pkgName];
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| 12 | if(process.platform === 'win32'){
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| 13 | args.unshift('/c', cmd);
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| 14 | cmd = 'cmd';
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| 15 | }
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| 16 | var child = spawn(cmd, args);
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| 17 | child.stderr.setEncoding('utf8');
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| 18 | child.stderr.on('data', function(data){
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| 19 | result += data;
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| 20 | });
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| 21 | child.on('close', function(code){
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| 22 | defer.resolve(result);
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| 23 | });
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| 24 | return defer.promise;
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| 25 | }
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| 26 |
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| 27 | module.exports = checkAvailable;
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