Format documentation commit in GitHub actions

The commit message provides the SHA1 of the current commit and an ID for
the build, now both on Travis and GitHub actions.

Fixes adafruit#74.

Author: edgar-bonet

doxy_gen_and_deploy.sh

@@ -44,13 +44,17 @@ if [[ -z "${TRAVIS_BUILD_DIR}" ]]; then
   export BUILD_DIR=${GITHUB_WORKSPACE}
   export AUTH=${GITHUB_ACTOR}:${GH_REPO_TOKEN}
   export REPO_SLUG=${GITHUB_REPOSITORY}
+  export COMMIT_SHA1=${GITHUB_SHA}
+  export BUILD_ID="GitHub Actions run: ${GITHUB_RUN_ID}"
   if [ "$GITHUB_EVENT_NAME" == "pull_request" ]; then
     export IS_PULL=1
   fi
 else
   export BUILD_DIR=${TRAVIS_BUILD_DIR}
   export AUTH=${GH_REPO_TOKEN}
   export REPO_SLUG=${TRAVIS_REPO_SLUG}
+  export COMMIT_SHA1=${TRAVIS_COMMIT}
+  export BUILD_ID="Travis build: ${TRAVIS_BUILD_NUMBER}"
   if [ "${TRAVIS_PULL_REQUEST}" != "false" ]; then
     export IS_PULL=1
   fi
@@ -78,7 +82,7 @@ cd ${REPO_NAME}
 git config --global push.default simple
 # Pretend to be an user called Doxygen CI.
 git config user.name "Doxygen CI"
-git config user.email "[email protected]"
+git config user.email "ci-arduino@invalid"
 
 # Remove everything currently in the gh-pages branch.
 # GitHub is smart enough to know which files have changed and which files have
@@ -171,7 +175,9 @@ if [ -d "html" ] && [ -f "html/index.html" ]; then
     # Commit the added files with a title and description containing the Travis CI
     # build number and the GitHub commit reference that issued this build.
     echo 'Git committing'
-    git commit -m "Deploy code docs to GitHub Pages Travis build: ${TRAVIS_BUILD_NUMBER}" -m "Commit: ${TRAVIS_COMMIT}"
+    git commit \
+      -m "Deploy docs to GitHub Pages from commit ${COMMIT_SHA1:0:10}" \
+      -m "Commit: ${COMMIT_SHA1}"$'\n'"${BUILD_ID}"
 
     # Force push to the remote gh-pages branch.
     # The ouput is redirected to /dev/null to hide any sensitive credential data