Implement workspace internal dependency updater

.github/actions/update-workspace-dependencies/action.yaml

@@ -0,0 +1,20 @@
+name: Update Workspace dependencies
+description: Updates internal dependencies in a Go Workspace
+
+inputs:
+  module:
+    description: The go module to update the dependencies of
+    required: true
+
+runs:
+  using: "composite"
+  steps:
+    - name: Install dependencies
+      shell: bash
+      run: |
+          sudo DEBIAN_FRONTEND=noninteractive apt update
+          sudo DEBIAN_FRONTEND=noninteractive apt install -y jq
+    - name: Update workspace dependencies
+      shell: bash
+      run: ${{ github.action_path }}/update-workspace-dependencies.sh "${{ github.repository }}" "wsl-pro-service"
+

.github/actions/update-workspace-dependencies/update-workspace-dependencies.sh

@@ -0,0 +1,54 @@
+#!/bin/bash
+set -eu
+
+github_repo="${1:-""}"
+target_module="${2:-""}"
+
+if [[ -z "${github_repo}" || -z "${target_module}" ]] ; then
+    echo "Update the out-of-date workspace dependencies of the target modules"
+    echo "This script must be run from the workspace root."
+    echo "Usage:"
+    echo "    $(basename $0) github_repo target_module"
+    echo ""
+    echo "github_repo:"
+    echo "    The 'user/repository' of the workspace"
+    echo ""
+    echo "target_module:"
+    echo "    The path of the module relative to the workspace root"
+    exit 2
+fi
+
+cd ${target_module}
+current_commit=$(git rev-parse HEAD~0)
+
+# Find internal dependencies
+repo="github.com/${github_repo}"
+url="${repo}/${target_module}"
+regex="s#${url} \(${repo}/[^@]\+@v.*\)#\1#p"
+dependencies=`go mod graph | sed -n "${regex}"`
+
+for dependency in ${dependencies}; do
+    pattern="^${repo}/\(.*\)@v\([^-]\+\)-\([^-]\+\)-\(.*\)$"
+    # Capture groups: (https://go.dev/ref/mod#versions)
+    # \1 Dependency path
+    # \2 Base version prefix
+    # \3 Timestamp
+    # \4 Revision identifier (12-character prefix of the commit hash)
+
+    dep_path=`echo $dependency | sed "s#${pattern}#\1#"`
+    dep_commit=`echo $dependency | sed "s#${pattern}#\4#"`
+
+    diff_files="$(git diff --name-only ${dep_commit} -- "../${dep_path}")"
+    if [ -z "${diff_files}" ] ; then
+        continue
+    fi
+
+    echo "::group::Updating dependency ${dep_path}::"
+
+    echo "Files changed since commit ${dep_commit}:"
+    echo "${diff_files}"
+
+    go get "${repo}/${dep_path}@${current_commit}"
+
+    echo "::endgroup::"
+done

.github/workflows/auto-updates.yaml

@@ -116,3 +116,48 @@ jobs:
         if: steps.check-readme.outputs.modified == 'true'
         run: |
           git push origin auto-updates/readme-cli-ref:main
+
+  update-internal-dependencies:
+    name: Update internal dependencies
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v4
+        with:
+          ref: main
+      - name: Set up git
+        uses: ./.github/actions/setup-git
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+      - name: Set up go
+        uses: actions/setup-go@v4
+        with:
+          go-version-file: go.work
+      - name: Update submodules
+        uses: ./.github/actions/update-workspace-dependencies
+        with:
+          module: wsl-pro-service
+      - name: Detect modifications
+        shell: bash
+        id: check-diff
+        run: |
+          hasModif="false"
+          MODIFIED=$(git status --porcelain --untracked-files=no)
+          if [ -n "$MODIFIED" ]; then
+            hasModif="true"
+          fi
+          echo "modified=${hasModif}" >> $GITHUB_OUTPUT
+      - name: Create Pull Request
+        uses: peter-evans/create-pull-request@v5
+        if: steps.check-diff.outputs.modified == 'true'
+        with:
+          commit-message: Auto update internal dependencies
+          title: Auto update WSL-Pro-Service dependencies
+          labels: automated pr
+          body: "[Auto-generated pull request](https://github.com/canonical/ubuntu-pro-for-windows/actions/workflows/auto-updates.yaml) by GitHub Action"
+          branch: auto-updates/update-internal-dependencies
+          token: ${{ secrets.GITHUB_TOKEN }}
+      - name: Push branch
+        if: steps.check-diff.outputs.modified == 'true'
+        run: |
+          git push origin auto-updates/update-internal-dependencies:main