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Add help/usage statement. #5

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merged 2 commits into from
Sep 28, 2017
Merged

Add help/usage statement. #5

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0b37be7
Added usage statement and argument validation
ericjperry Sep 28, 2017
bd52788
Remove unnecessary variable
ericjperry Sep 28, 2017
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22 changes: 20 additions & 2 deletions index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -2,8 +2,26 @@

var fs = require("fs");

const FOLDER_PATH = (process.argv[2][0] == "./")?process.argv[2]:"./"+process.argv[2];
const MODULE_NAME = process.argv[3];
function printUsage(code) {
console.log(`Usage: ${__filename} [-h] <asset_folder> <output_file>`);
console.log(' asset_folder: The folder containing the source assets for the module being created.');
console.log(' output_file: The resulting javascript source file where the module will be written. This file can be required after running pre-require to load the source assets.');
process.exit(code || 0);
}

const args = process.argv.slice(2);

if (args.length === 1 && (args[0] === '-h')) {
printUsage();
}

if (args.length !== 2) {
console.log('Error: required command line arguments not provided.');
printUsage(1);
}

const FOLDER_PATH = (args[0][0] == "./")?args[0]:"./"+args[0];
const MODULE_NAME = args[1];


fs.readdir(FOLDER_PATH, function(err, items) {
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