Comply with Policy for AI Generated Content

While probably not meeting most people's definition of artificial
intelligence these scripts do create patches. The OpenInfra Policy
for AI Generated Content recommends to:

> Add a "Generated-By:" label to the commit message, and explain in
> comments or the commit message any prompts or background context
> the reviewers might need to fully understand the change and how
> much of the change was generated by the tool.

Even though it also has a carve-out for these sorts of scripts:

> The exception to the rule is that we do allow submissions from
> well documented automated processes, such as release tooling or
> for internationalization updates.

https://openinfra.org/legal/ai-policy

Nevertheless, documenting within the commit message the location of
the script which was used to generate that contribution is helpful
for a number of obvious reasons. Let's do it anyway, even though
it's not technically required.

Change-Id: I2c1fbbdad5ce6c54e4683ab54a453c921f5f3b22

playbooks/proposal/propose_update.sh

@@ -176,7 +176,7 @@ for PROJECT in $PROJECTS; do
         pushd $PROJECT_DIR
         if ! git diff --stat --exit-code HEAD ; then
             # Commit and review
-            git_args="-a -F- -s"
+            git_args="-a -F- -s --trailer='Generated-By:openstack/project-config:playbooks/proposal/propose_update.sh'"
             git commit $git_args <<EOF
 $COMMIT_MSG
 EOF

roles/copy-release-tools-scripts/files/release-tools/add_release_note_page.sh

@@ -69,6 +69,7 @@ spaces=$(grep unreleased releasenotes/source/index.rst | sed -e 's/\w//g')
 sed --in-place -e "/unreleased/s/unreleased/unreleased\n${spaces}${SERIES}/" releasenotes/source/index.rst
 git add releasenotes/source/index.rst releasenotes/source/${SERIES}.rst
 git diff
-git commit -m "$commit_msg" -s
+git commit -m "$commit_msg" -s \
+    --trailer="Generated-By:openstack/project-config:roles/copy-release-tools-scripts/files/release-tools/add_release_note_page.sh"
 git show
 git review -t "reno-${SERIES}" --yes

roles/copy-release-tools-scripts/files/release-tools/change_reno_branch_to_unmaintained.sh

@@ -45,6 +45,7 @@ unmaintained/${SERIES}.
 sed --in-place -e "s/stable\/${SERIES}/unmaintained\/${SERIES}/" releasenotes/source/${SERIES}.rst
 git add releasenotes/source/${SERIES}.rst
 git diff
-git commit -m "$commit_msg" -s
+git commit -m "$commit_msg" -s \
+    --trailer="Generated-By:openstack/project-config:roles/copy-release-tools-scripts/files/release-tools/change_reno_branch_to_unmaintained.sh"
 git show
 git review -t "reno-eom-${SERIES}" --yes

roles/copy-release-tools-scripts/files/release-tools/functions

@@ -66,7 +66,8 @@ function update_gitreview {
 defaultbranch=$branch"
     echo "$grcontents" > .gitreview
     git add .gitreview
-    git commit -m "Update .gitreview for $branch" -s
+    git commit -m "Update .gitreview for $branch" -s \
+        --trailer="Generated-By:openstack/project-config:roles/copy-release-tools-scripts/files/release-tools/functions"
     git show
     local shortbranch=$(basename $branch)
     git review -t "create-${shortbranch}" --yes
@@ -110,7 +111,8 @@ the requirements repository branches.
 
 Until the requirements repository has as $branch branch, tests will
 continue to use the upper-constraints list on master."
-        git commit -m "$msg" -m "$body" -s
+        git commit -m "$msg" -m "$body" -s \
+            --trailer="Generated-By:openstack/project-config:roles/copy-release-tools-scripts/files/release-tools/functions"
         git show
         local shortbranch=$(basename $branch)
         git review -t "create-${shortbranch}" --yes

roles/copy-release-tools-scripts/files/release-tools/update_constraints.sh

@@ -125,7 +125,8 @@ else
     if git commit -a -m "update constraint for $dist_name to new release $VERSION
 
 $TAG_META
-" -s; then
+" -s --trailer="Generated-By:openstack/project-config:roles/copy-release-tools-scripts/files/release-tools/update_constraints.sh"
+    then
         echo "Sleeping 10 minutes to avoid issues with the pypi cache"
         sleep 600
         git show