Add subcommand input to the Github Action

Defaults at files

Signed-off-by: Marco Franssen <marco.franssen@philips.com>

README.md

@@ -201,8 +201,9 @@ An action to generate SLSA build provenance for an artifact
 
 | parameter | description | required | default |
 | - | - | - | - |
+| subcommand | The subcommand to use when generating provenance | `false` | files |
 | artifact_path | path to artifact or directory of artifacts | `true` |  |
-| output_path | path to write build provenance file | `true` | provenance.json |
+| output_path | path to write build provenance file | `false` | provenance.json |
 | github_context | internal (do not set): the "github" context object in json | `true` | ${{ toJSON(github) }} |
 | runner_context | internal (do not set): the "runner" context object in json | `true` | ${{ toJSON(runner) }} |
 | tag_name | The github release to generate provenance on.\n (if set the artifacts will be downloaded from the release and the provenance will be added as an additional release asset.) | `false` |  |

action.yaml

@@ -4,12 +4,16 @@ branding:
   icon: lock
   color: purple
 inputs:
+  subcommand:
+    description: 'The subcommand to use when generating provenance'
+    required: false
+    default: 'files'
   artifact_path:
     description: 'path to artifact or directory of artifacts'
     required: true
   output_path:
     description: 'path to write build provenance file'
-    required: true
+    required: false
     default: 'provenance.json'
   github_context:
     description: 'internal (do not set): the "github" context object in json'
@@ -32,6 +36,7 @@ runs:
   image: 'docker://ghcr.io/philips-labs/slsa-provenance:v0.4.0'
   args:
     - "generate"
+    - '${{ inputs.subcommand }}'
     - "-artifact_path"
     - '${{ inputs.artifact_path }}'
     - "-output_path"