Merge pull request #5 from satackey/enable-downloads

Enable downloads

README.md

@@ -4,6 +4,8 @@ This action uploads the specified directory/files to Google Drive.
 
 ## Example
 
+### Upload
+
 ```yaml
 - name: Upload to Google Drive
   uses: satackey/action-google-drive@v1
@@ -17,6 +19,21 @@ This action uploads the specified directory/files to Google Drive.
     google-client-secret: ${{ secrets.GOOGLE_CLIENT_SECRET }}
 ```
 
+### Donwload
+
+```yaml
+- name: Download from Google Drive
+  uses: satackey/action-google-drive@v1
+  with:
+    skicka-tokencache-json: ${{ secrets.SKICKA_TOKENCACHE_JSON }}
+    download-from: /path/to/download
+    download-to: ./
+
+    # For those who set up Google Drive API client ID and secret themselves
+    google-client-id: ${{ secrets.GOOGLE_CLIENT_ID }}
+    google-client-secret: ${{ secrets.GOOGLE_CLIENT_SECRET }}
+```
+
 ## Get ready
 
 This action uses [`skicka`](https://github.com/google/skicka) for uploading to Google Drive.
@@ -70,9 +87,15 @@ Return to step 2 and proceed, and similarly **register your client ID and secret
 - `upload-from` optional  
     Upload source path. Default is the current directory.
 
-- `upload-to` optional  
+- `upload-to` **Required** for upload  
     Upload destination path.
 
+- `download-from` **Required** for download  
+    Download source path.
+
+- `download-to` optional  
+    Download destination path. Default is the current directory.
+
 - `google-client-id` optional  
     OAuth2.0 client ID of Google APIs when using skicka.  
     **Required** for those who set up Google Drive API client ID and secret themselves.

action.yml

@@ -1,8 +1,8 @@
-name: 'Upload to Google Drive'
-description: 'Upload files to Google Drive'
+name: Intaract with Google Drive
+description: Upload/Download files to/from Google Drive
 
 branding:
-  icon: 'upload-cloud'
+  icon: upload-cloud
   color: 'gray-dark'
 
 inputs:
@@ -17,7 +17,16 @@ inputs:
 
   upload-to:
     description: 'The path where the files to be uploaded is located'
-    required: true
+    required: false
+
+  download-from:
+    description: The path where the files to download are located
+    required: false
+
+  download-to:
+    description: The path where the files to be downloaded is located
+    required: false
+    default: ./
 
   remove-outdated:
     description: 'Whether to delete files that do not exist locally'
@@ -40,6 +49,8 @@ runs:
     SKICKA_TOKENCACHE_JSON: ${{ inputs.skicka-tokencache-json }}
     UPLOAD_FROM: ${{ inputs.upload-from }}
     UPLOAD_TO: ${{ inputs.upload-to }}
+    DOWNLOAD_FROM: ${{ inputs.download-from }}
+    DOWNLOAD_TO: ${{ inputs.download-to }}
     REMOVE_OUTDATED: ${{ inputs.remove-outdated }}
     GOOGLE_CLIENT_ID: ${{ inputs.google-client-id }}
     GOOGLE_CLIENT_SECRET: ${{ inputs.google-client-secret }}

entrypoint.sh

@@ -13,15 +13,27 @@ if [ -n "$GOOGLE_CLIENT_ID" ]; then
     sed -i -e "s/;clientsecret=YOUR_GOOGLE_APP_SECRET/clientsecret=$GOOGLE_CLIENT_SECRET/" ~/.skicka.config
 fi
 
-skicka -no-browser-auth upload -ignore-times "$UPLOAD_FROM" "$UPLOAD_TO"
+if [ -n "$DOWNLOAD_FROM" ]; then
+    echo 'Input download-from has been specified. This action will run the download.'
+    skicka -no-browser-auth download -ignore-times "$DOWNLOAD_FROM" "$DOWNLOAD_TO"
+elif [ -n "$UPLOAD_TO" ]; then
+    echo 'Input upload-to has been specified. This action will run the upload.'
+    skicka -no-browser-auth upload -ignore-times "$UPLOAD_FROM" "$UPLOAD_TO"
 
-# Remove outdated
-if [ $REMOVE_OUTDATED == "true" ]; then
-    skicka -verbose download -ignore-times "$UPLOAD_TO" "$UPLOAD_FROM" 2>&1 | \
-        sed "/Downloaded and wrote/!d" | \
-        sed -E "s/.*bytes to //" | \
-        xargs -I{} skicka rm "$UPLOAD_FROM{}" || true
-elif [ $REMOVE_OUTDATED != "false" ]; then
-    echo '$REMOVE_OUTDATED must be "true" or "false".'
+    # Remove outdated
+    if [ $REMOVE_OUTDATED == "true" ]; then
+        # This command will download files that don't exist locally,
+        # and remove files from downloaded files list.
+        skicka -verbose download -ignore-times "$UPLOAD_TO" "$UPLOAD_FROM" 2>&1 | \
+            sed "/Downloaded and wrote/!d" | \
+            sed -E "s/.*bytes to //" | \
+            xargs -I{} skicka rm "$UPLOAD_FROM{}" || true
+    elif [ $REMOVE_OUTDATED != "false" ]; then
+        echo '$REMOVE_OUTDATED must be "true" or "false".'
+        exit 1
+    fi
+else
+    echo 'Neither input download-from nor upload-to has been specified.'
+    echo 'You need to specify which one.'
     exit 1
 fi