Option to squash all commits into one

[eggplants]

Especially if this Action is executed daily, the gist's commit log will be huge. (example)

For this reason, I would like an option to squash all commits into one like: git reset $(git commit-tree 'HEAD^{tree}' -m "squashed")

[exuanbo]

How about an option like keep_history?

[eggplants]

Boolean keep_history (default: true) is desirable.