CODEWITHSUNDEEP
git
user578895
user578895

Reputation:

Multiple git checkouts from a single repo with hardlinks?

Does anyone know of a way to get numerous "read-only" git repositories based off of hard-links? In otherwords, I want subsequent working dirs off of a ~500MB repo to only be hardlinks thus making it just a few KB.

Short of that, any any feedback on my below insanity is appreciated.

Okay, now background:

I'm working on building a QA tool where I want to be able to hit:

1f381de1.somesite.com
9e010d42.somesite.com
...etc

As these projects include dynamic (e.g. php) files hosted by, for example, apache, I can't pipe all the output through something like git show, or I happily would (if anyone knows a possible way to do this, I'd love to hear it).

I don't want to do a git clone or git-new-workdir for each version I want to hit as I'll be copying all the live files in the repo. As I don't want to constantly garbage-collect this project there may be a hundred versions or more "active" at one time and I don't want to copy what may be a ~500MB project 100 times.

So ideally some tool exists that allows me to get several read-only checkouts based on hardlinks. If not, my current thinking is:

The ultimate result is that I have an uncompressed version of all the files I use in .git/objects with every file in a new checkout being a hardlink pointing at some file in that directory.

Upvotes: 2

Views: 379

Answers (1)

user578895
user578895

Reputation:

Looking into this, I ran across FUSE which I've heard about but never really used or bothered to wrap my head around what it really was. It allows me to do what I thought was impossible -- proxy git show commands to OS-level requests for files.

Upvotes: 1

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