ench: add a message mentioning squashed commits

main.sh

@@ -31,14 +31,25 @@ TMP_BRANCH="tmp-$RANDOM"
 git checkout -b $TMP_BRANCH
 git checkout $BRANCH
 
+# use current branch last commit's author as the git identity
+GIT_NAME=$(git show -s --format='%an' HEAD)
+GIT_EMAIL=$(git show -s --format='%ae' HEAD)
+
 # reset current branch to the root
 ROOT_HASH=$(git rev-list --max-parents=0 HEAD)
 git reset --hard $ROOT_HASH
 
+# generate changes
+MESSAGE=''
+for rev in $(git rev-list $ROOT_HASH..$TMP_BRANCH); do
+    MESSAGE="$(git show --no-color --format=fuller --no-patch HEAD)\n$MESSAGE"
+done
+MESSAGE="Squashed the branch at $(date)\n$MESSAGE"
+
 # merge-squash newest changes from the temporary branch
 git merge --squash $TMP_BRANCH
 git add .
-git commit -m "$(date)"
+git commit -c user.email=$GIT_EMAIL -c user.name=$GIT_NAME -m $MESSAGE
 
 # remove temporary branch
 git branch -D $TMP_BRANCH