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 ...

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

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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.