cli (2269B)
1 #!/usr/bin/env node 2 3 /** 4 * @license Apache-2.0 5 * 6 * Copyright (c) 2018 The Stdlib Authors. 7 * 8 * Licensed under the Apache License, Version 2.0 (the "License"); 9 * you may not use this file except in compliance with the License. 10 * You may obtain a copy of the License at 11 * 12 * http://www.apache.org/licenses/LICENSE-2.0 13 * 14 * Unless required by applicable law or agreed to in writing, software 15 * distributed under the License is distributed on an "AS IS" BASIS, 16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 17 * See the License for the specific language governing permissions and 18 * limitations under the License. 19 */ 20 21 'use strict'; 22 23 // MODULES // 24 25 var resolve = require( 'path' ).resolve; 26 var readFileSync = require( '@stdlib/fs/read-file' ).sync; 27 var CLI = require( '@stdlib/cli/ctor' ); 28 var trim = require( '@stdlib/string/trim' ); 29 var stdin = require( '@stdlib/process/read-stdin' ); 30 var stdinStream = require( '@stdlib/streams/node/stdin' ); 31 var reEOL = require( '@stdlib/regexp/eol' ); 32 var isUNCPath = require( './../lib' ); 33 34 35 // MAIN // 36 37 /** 38 * Main execution sequence. 39 * 40 * @private 41 * @returns {void} 42 */ 43 function main() { 44 var flags; 45 var args; 46 var cli; 47 48 // Create a command-line interface: 49 cli = new CLI({ 50 'pkg': require( './../package.json' ), 51 'options': require( './../etc/cli_opts.json' ), 52 'help': readFileSync( resolve( __dirname, '..', 'docs', 'usage.txt' ), { 53 'encoding': 'utf8' 54 }) 55 }); 56 57 // Get any provided command-line options: 58 flags = cli.flags(); 59 if ( flags.help || flags.version ) { 60 return; 61 } 62 63 // Get any provided command-line arguments: 64 args = cli.args(); 65 66 // Check if we are receiving data from `stdin`... 67 if ( !stdinStream.isTTY ) { 68 return stdin( onRead ); 69 } 70 console.log( isUNCPath( trim( args[ 0 ] ) ) ); // eslint-disable-line no-console 71 72 /** 73 * Callback invoked upon reading from `stdin`. 74 * 75 * @private 76 * @param {(Error|null)} error - error object 77 * @param {Buffer} data - data 78 * @returns {void} 79 */ 80 function onRead( error, data ) { 81 var lines; 82 var i; 83 if ( error ) { 84 return cli.error( error ); 85 } 86 lines = data.toString().split( reEOL.REGEXP ); 87 for ( i = 0; i < lines.length; i++ ) { 88 console.log( isUNCPath( lines[ i ] ) ); // eslint-disable-line no-console 89 } 90 } 91 } 92 93 main();