Fix behavior for create-args without env name

.github/workflows/label.yml

@@ -8,13 +8,7 @@ jobs:
   pr-label:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/labeler@v4
-        if: github.event.action == 'opened' || github.event.action == 'reopened' || github.event.action == 'edited' || github.event.action == 'synchronize'
-        with:
-          repo-token: "${{ secrets.GITHUB_TOKEN }}"
-        id: labeler
       - uses: mheap/github-action-required-labels@v5
-        if: steps.labeler.outputs.new-labels == ''
         with:
           labels: bug,enhancement,ci,documentation,dependencies,ignore-for-release
           mode: minimum

.github/workflows/test.yml

@@ -271,3 +271,18 @@ jobs:
         id: setup-micromamba
       - run: |
           test "${{ steps.setup-micromamba.outputs.environment-path }}" = ""
+
+  # not properly testable
+  # https://github.com/actions/runner/issues/2347
+  # https://github.com/orgs/community/discussions/15452
+  # create-args-no-env-name:
+  #   runs-on: ubuntu-latest
+  #   steps:
+  #     - uses: actions/checkout@v4
+  #     - uses: ./
+  #       with:
+  #         create-args: >-
+  #           python
+  #           pytest
+  #     - run: exit 1
+  #       if: success()

src/options.ts

@@ -171,6 +171,9 @@ const validateInputs = (inputs: Inputs): void => {
   if (inputs.initShell?.includes('none') && inputs.initShell.length !== 1) {
     throw new Error("You cannot specify 'none' with other shells.")
   }
+  if (!inputs.environmentName && !inputs.environmentFile && inputs.createArgs?.length) {
+    throw new Error('You need to specify an environment name.')
+  }
 }
 
 const assertOptions = (options: Options) => {