Use a task for syncing file duplicates

This repository contains intentionally duplicated template workflow copies under
`workflow-templates/dependabot/workflow-template-copies`. These are used for the Dependabot checks for outdated action
versions.

It's essential that these be kept in sync with the source files, and this is enforced by a CI workflow. So the sync
process will need to be run by the developer whenever modifying the template workflows. A Bash script was previously
provided to facilitate syncing, and used by the CI system. However, the Tooling Team standard is to use Task for
development processes that are regularly run locally. So a Task-based approach is most appropriate.

Author: per1234

.github/workflows/check-sync.yml

@@ -4,7 +4,7 @@
 # - Assets for the workflow templates used in this repository.
 #
 # This workflow checks that the copies are in sync.
-# If the workflow fails, run workflow-templates/etc/sync.sh and commit.
+# If the workflow fails, run `task dependabot:sync` and commit.
 
 name: Check File Duplicates Sync
 
@@ -16,16 +16,26 @@ jobs:
   check-sync:
     runs-on: ubuntu-latest
 
+    env:
+      SYNC_COMMAND: task dependabot:sync
+
     steps:
       - name: Checkout repository
         uses: actions/checkout@v2
 
+      - name: Install Task
+        uses: arduino/setup-task@v1
+        with:
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
+          version: 3.x
+
+      - name: Sync files
+        run: ${{ env.SYNC_COMMAND }} --silent
+
       - name: Check file duplicates sync
         run: |
-          SYNC_SCRIPT_PATH="etc/sync.sh"
-          "${{ github.workspace }}/$SYNC_SCRIPT_PATH"
           git add .
           if ! git diff --color --exit-code HEAD; then
-            echo "::error::File duplicates are out of sync. Please run $SYNC_SCRIPT_PATH"
+            echo "::error::File duplicates are out of sync. Please run \"${{ env.SYNC_COMMAND }}\""
             exit 1
           fi

Taskfile.yml

@@ -1,11 +1,32 @@
 version: "3"
 
 tasks:
+  fix:
+    desc: Make automated corrections to the project's files
+    deps:
+      - task: dependabot:sync
+
   check:
     desc: Check for problems with the project
     deps:
       - task: config:validate
 
+  dependabot:sync:
+    desc: Sync workflow duplicates for dependabot checks
+    vars:
+      WORKFLOW_TEMPLATES_PATH: "./workflow-templates"
+      WORKFLOW_TEMPLATE_COPIES_PATH: "./workflow-templates/dependabot/workflow-template-copies/.github/workflows"
+    cmds:
+      # Sync workflow templates with the copies in the folder where Dependabot can check them for updates.
+      - mkdir --parents "{{.WORKFLOW_TEMPLATE_COPIES_PATH}}"
+      - rm --force "{{.WORKFLOW_TEMPLATE_COPIES_PATH}}"/*
+      - |
+        find "{{.WORKFLOW_TEMPLATES_PATH}}" \
+          -maxdepth 1 \
+          -type f \
+          -regex '.*\.ya?ml' \
+          -exec cp '{}' "{{.WORKFLOW_TEMPLATE_COPIES_PATH}}" \;
+
   config:validate:
     desc: Validate configuration files against their JSON schema
     vars: