piboistudios · July 25, 2019 17:09 · Jul 25, 2019
diff --git a/copy-directory-to.js b/copy-directory-to.js
@@ -0,0 +1,76 @@
+/**
+ * Moves files from one location to another, recursively traverses subdirectories.
+ * example usage: move-dir ./a ./b
+ */
+const fs = require('fs');
+const fromDir = process.argv[2];
+const bluebird = require('bluebird');
+const chalk = require('chalk');
+const toDir = process.argv[3];
+console.log({ fromDir, toDir });
+const exists = (...args) => {
+    try {
+        args.forEach(fs.accessSync);
+        return true;
+    } catch (err) {
+
+        return false;
+    }
+}
+(async () => {
+    const read = bluebird.promisify(fs.readFile);
+    const write = bluebird.promisify(fs.writeFile);
+    const stat = bluebird.promisify(fs.stat);
+    const readdir = bluebird.promisify(fs.readdir);
+
+    if (exists(fromDir)) {
+        try {
+
+            !exists(toDir) && fs.mkdirSync(toDir);
+        } catch (err) {
+            console.error(err);
+            return;
+        }
+        const promises = [];
+        const processPath = async _path => {
+
+            const path = _path !== fromDir ? `${fromDir}${fromDir[fromDir.length - 1] === '/' ? '' : '/'}${_path}` : _path;
+
+            const stats = await stat(path);
+            if (stats.isDirectory()) {
+                const paths = await readdir(path);
+                if (path !== fromDir) {
+
+                    try {
+                        const subDir = `${toDir}${toDir[toDir.length - 1] === '/' ? '' : '/'}${_path}`;
+                        !exists(subDir) && fs.mkdirSync(subDir);
+                    } catch (err) {
+                        console.error(err);
+                        return;
+                    }
+                }
+                (path !== fromDir ? paths.map(subPath => `${_path}/${subPath}`) : paths).forEach(processPath);
+            } else {
+
+                promises.push(read(path).then(contents => {
+
+                    const movedFileName = `${toDir}${toDir[toDir.length - 1] === '/' ? '' : '/'}${_path}`;
+
+                    promises.push(write(movedFileName, contents).then(() => {
+                        console.log(`Successfully wrote ${movedFileName}.`);
+                    }).catch(err => {
+                        console.error(err);
+                    }))
+                }).catch(err => {
+                    console.error(error);
+                }));
+            }
+        }
+
+        await processPath(fromDir);
+        await bluebird.all(promises);
+        console.log("Done.");
+    } else {
+        console.log(chalk.red('The given path', fromDir, 'does not exist'));
+    }
+})()