Use Git CLI to find folder last changed date

I have a folder in git that contains all my projects. I wanted to find which projects I haven’t worked on in a while to clean them up, so I made this command.

ls -1 projects

dnd
home-server
learn-japanese

find projects -maxdepth 1 -type d \( ! -name . \) -exec git log --pretty=format:'%ad {}' --date=format:'%Y-%m-%d' -1 {} \; -exec echo \; | sort

2019-12-05 home-server
2023-01-07 learn-japanese
2023-04-08 dnd

Explanation

find sort explainshell.com

find projects -maxdepth 1 -type d \( ! -name . \) \
  -exec git log --pretty=format:'%ad {}' --date=format:'%Y-%m-%d' -1 {} \; \
  -exec echo \; \
  | sort

git explainshell.com

• %ad is the date
• -1 looks at a single commit per folder

git log --pretty=format:'%ad projects/home-server' --date=format:'%Y-%m-%d' -1 projects/home-server