Do the file dates for bare git repositories represent the repository creation date?

Without going into every single one of my repos (I suppose I could with bash i.e. for i in {repo list} ; do cd $i && git pull && cd .. done but I'd have to type in credentials for each) is there a simple way of looking at the bare git repos to determine what's been updated recently?

The file data on the repo directory seems to a be the repo creation dat开发者_如何学Ce ...

Check the date of packed-refs, refs/heads/* and refs/tags/*. That is what you change when the HEAD is updated.

If you just want to check what is there in the remote repo without updating your working copy, you can use git fetch instead of git pull:

// pull new data from remote
git fetch origin

// see new commits in origin/master
git log master..origin/master

As for your second problem of having to type in your credentials every time, you can use ssh-agent to login without needing to enter your private key passphrase every time. If you are on OS X, then keychain access should already do it for you.