[WIP] Add GH workflow to test copyback files from OpenBSD

.github/workflows/copyback.yml

@@ -0,0 +1,86 @@
+name: Copyback from VM (test)
+
+env:
+  # build job configuration
+  STYLE_FAIL_ON_FAULT: true ## (bool) fail if the build job contains a fault (error or warning); may be overridden on a per-job basis
+  # cargo-nextest version to build
+  NEXTEST_VERSION: "0.9.66"
+
+on:
+  # To run manually workflow
+  workflow_dispatch:
+
+permissions:
+  contents: read # to fetch code (actions/checkout)
+
+jobs:
+  build:
+    name: Download cargo-nextest
+    runs-on: ubuntu-latest
+    timeout-minutes: 90
+    # strategy:
+    #   fail-fast: false
+    steps: 
+    - name: Prepare OpenBSD VM and run tests
+      uses: vmactions/[email protected]
+      with:
+        usesh: true
+        sync: rsync
+        # copyback: false
+        # Install requirements
+        prepare: |
+          pkg_add -I bash curl sudo-1.9.14.2
+        run: |
+          ## Prepare and test
+          # implementation modelled after ref: <https://github.com/rust-lang/rustup/pull/2783>
+          # * NOTE: All steps need to be run in this block, otherwise, we are operating back on the Ubuntu host
+          set -e
+          #
+          BUILD_USER=builder
+          REPO_NAME=${GITHUB_WORKSPACE##*/}
+          WORKSPACE_PARENT="/home/runner/work/${REPO_NAME}"
+          WORKSPACE="${WORKSPACE_PARENT}/${REPO_NAME}"
+          # Generate random password for user
+          PASSWD=$(encrypt $(openssl rand -base64 12))
+          # Create user for build
+          useradd -d /root/ -g wheel -c "User to build cargo-nextest" -p ${PASSWD} ${BUILD_USER}
+          chown -R ${BUILD_USER}:wheel /root/ "${WORKSPACE_PARENT}"/
+          echo "## whoami before sudo"
+          whoami
+          #
+          # Further work needs to be done in a sudo as we are changing users
+          sudo -i -u ${BUILD_USER} bash << EOF
+          set -e
+          echo "## whoami after sudo"
+          whoami
+          # Increase the number of file descriptors - See https://github.com/rust-lang/cargo/issues/11435
+          ulimit -n 1024
+          ## VARs setup
+          cd "${WORKSPACE}"
+          unset FAIL_ON_FAULT ; case '${{ env.STYLE_FAIL_ON_FAULT }}' in
+          ''|0|f|false|n|no|off) FAULT_TYPE=warning ;;
+          *) FAIL_ON_FAULT=true ; FAULT_TYPE=error ;;
+          esac;
+          FAULT_PREFIX=\$(echo "\${FAULT_TYPE}" | tr '[:lower:]' '[:upper:]')
+          ## Info
+          # environment
+          echo "## environment"
+          echo "CI='${CI}'"
+          echo "REPO_NAME='${REPO_NAME}'"
+          echo "BUILD_USER='${BUILD_USER}'"
+          echo "WORKSPACE_PARENT='${WORKSPACE_PARENT}'"
+          echo "WORKSPACE='${WORKSPACE}'"
+          echo "FAULT_PREFIX='\${FAULT_PREFIX}'"
+          echo "NEXTEST_VERSION='${{ env.NEXTEST_VERSION }}'"
+          env | sort
+          # tooling info
+          echo "## packages infos"
+          pkg_info
+          ## Run build script for cargo-nextest
+          echo "# pwd"
+          pwd
+          echo "# download cargo-nextest sources"
+          curl -L https://github.com/nextest-rs/nextest/archive/refs/tags/cargo-nextest-${{ env.NEXTEST_VERSION }}.tar.gz -o cargo-nextest-${{ env.NEXTEST_VERSION }}.tar.gz
+          echo "# ls -l"
+          ls -l
+          EOF