Added the ability to use a directory with subdirectories or files, or a path to a single file

README.md

@@ -24,7 +24,7 @@ Email body
 
 ### `attachment`
 
-Filename of the attachment
+Filename of the attachment or directory
 
 ## Outputs
 
@@ -40,5 +40,5 @@ with:
   to: 'example@example.com'
   subject: 'building main'
   body: 'This is a notification from GitHub actions.'
-  attachment: 'artifacts.zip'
+  attachment: 'artifacts.zip' # 'somedir/somesubdir'
 ```

index.js

@@ -1,7 +1,8 @@
 const core = require('@actions/core');
 const mime = require('mime');
 const { email } = require('@cinotify/js');
-const {readFileSync} = require('fs');
+const { readFileSync, lstatSync, readdirSync, statSync } = require('fs');
+const { join, relative, basename } = require('path');
 
 try {
     const to = core.getInput('to');
@@ -11,13 +12,28 @@ try {
 
     const attachmentPath = core.getInput('attachment');
     if (attachmentPath) {
-        const file = readFileSync(attachmentPath);
-        const attachment = {
-            filename: attachmentPath,
-            type: mime.getType(attachmentPath),
-            content: file.toString('base64')
+        const isDirectory = lstatSync(attachmentPath).isDirectory();
+        if (isDirectory) {
+            const files = getFilesFromDirectory(attachmentPath);
+
+            files.forEach(filePath => {
+                const fileContent = readFileSync(filePath);
+                const attachment = {
+                    filename: basename(relative(attachmentPath, filePath)),
+                    type: mime.getType(filePath),
+                    content: fileContent.toString('base64')
+                }
+                payload.attachments.push(attachment);
+            });
+        } else {
+            const file = readFileSync(attachmentPath);
+            const attachment = {
+                filename: basename(attachmentPath),
+                type: mime.getType(attachmentPath),
+                content: file.toString('base64')
+            }
+            payload.attachments = [attachment];
         }
-        payload.attachments = [attachment];
     }
 
     email(payload).then(() => {
@@ -28,3 +44,22 @@ try {
 } catch (error) {
     core.setFailed(error.message);
 }
+
+
+function getFilesFromDirectory(dir) {
+    const files = readdirSync(dir);
+    let fileList = [];
+
+    files.forEach(file => {
+        const filePath = join(dir, file);
+        const stats = statSync(filePath);
+
+        if (stats.isDirectory()) {
+            fileList = fileList.concat(getFilesFromDirectory(filePath));
+        } else {
+            fileList.push(filePath);
+        }
+    });
+
+    return fileList;
+}