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44 lines
1.0 KiB
JavaScript
44 lines
1.0 KiB
JavaScript
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var common = require('./common');
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var fs = require('fs');
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//@
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//@ ### cat(file [, file ...])
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//@ ### cat(file_array)
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//@
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//@ Examples:
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//@
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//@ ```javascript
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//@ var str = cat('file*.txt');
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//@ var str = cat('file1', 'file2');
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//@ var str = cat(['file1', 'file2']); // same as above
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//@ ```
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//@
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//@ Returns a string containing the given file, or a concatenated string
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//@ containing the files if more than one file is given (a new line character is
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//@ introduced between each file). Wildcard `*` accepted.
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function _cat(options, files) {
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var cat = '';
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if (!files)
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common.error('no paths given');
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if (typeof files === 'string')
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files = [].slice.call(arguments, 1);
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// if it's array leave it as it is
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files = common.expand(files);
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files.forEach(function(file) {
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if (!fs.existsSync(file))
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common.error('no such file or directory: ' + file);
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cat += fs.readFileSync(file, 'utf8') + '\n';
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});
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if (cat[cat.length-1] === '\n')
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cat = cat.substring(0, cat.length-1);
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return common.ShellString(cat);
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}
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module.exports = _cat;
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