Merge pull request #248 from lifeomic/add-overwrite-optional

feat: provides protection against overwritting on download

Author: RyanRatcliff

lib/api.js

@@ -103,6 +103,13 @@ module.exports.list = async function (options, path) {
 module.exports.download = async function (options, path, fileName) {
   mkdirp(dirname(fileName));
 
+  // Check if file exists and skip if overwrite is not enabled
+  // eslint-disable-next-line security/detect-non-literal-fs-filename
+  if (fs.existsSync(fileName) && !options.overwrite) {
+    console.log(chalk.yellow(`Skipped (already exists): ${fileName}`));
+    return;
+  }
+
   const response = await request(options).get(path);
 
   const bar = progress(fileName);

lib/cmds/files_cmds/download.js

@@ -24,6 +24,11 @@ exports.builder = yargs => {
     alias: 'l',
     type: 'number',
     default: 1000
+  }).option('overwrite', {
+    describe: 'Overwrite existing files. By default, existing files are skipped.',
+    alias: 'f',
+    type: 'boolean',
+    default: false
   });
 };