Merge PR #33

This change implements running dists verification before
performing actual upload. It is controlled by the input
called `verify_metadata` which is on by default.

README.md

@@ -101,6 +101,17 @@ would now look like:
     packages_dir: custom-dir/
 ```
 
+### Disabling metadata verification
+
+It is recommended that you run `twine check` just after producing your files,
+but this also runs `twine check` before upload. You can also disable the twine
+check with:
+
+```yml
+   with:
+     verify_metadata: false
+```
+
 ## License
 
 The Dockerfile and associated scripts and documentation in this project

action.yml

@@ -16,6 +16,10 @@ inputs:
     description: The target directory for distribution
     required: false
     default: dist
+  verify_metadata:
+    description: Check metadata before uploading
+    required: false
+    default: true
 branding:
   color: yellow
   icon: upload-cloud
@@ -27,3 +31,4 @@ runs:
   - ${{ inputs.password }}
   - ${{ inputs.repository_url }}
   - ${{ inputs.packages_dir }}
+  - ${{ inputs.verify_metadata }}

twine-upload.sh

@@ -28,6 +28,10 @@ then
         are in place should you face this problem.
 fi
 
+if [[ ${INPUT_VERIFY_METADATA,,} != "false" ]] ; then
+    twine check ${INPUT_PACKAGES_DIR%%/}/*
+fi
+
 
 TWINE_USERNAME="$INPUT_USER" \
 TWINE_PASSWORD="$INPUT_PASSWORD" \