CODEWITHSUNDEEP
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bigredbob
bigredbob

Reputation: 1857

How do I download a specific git commit from a repository?

I don't have a local code copy/etc, I just want to download a single specific git commit so I can view it. I have the url for the git repository:

git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6.git

and the commit hash:

ee9c5cfad29c8a13199962614b9b16f1c4137ac9

How can I download just this commit using git (I don't want the whole repo, just the one commit patch)? I have read the man pages for git-pull and git-cherry-pick and fiddled with the commands with no luck.

Cloning the repo really isn't an option because some of the Kernel repositories are exceedingly large and slow to download (hours).

Upvotes: 22

Views: 51538

Answers (9)

maoizm
maoizm

Reputation: 729

As correctly stated in @Josh Lee answer short answer is not possible.

Nevertheless for not non-real-life situation when you are the owner of big repo and need some commit at new location and save some bandwidth/time to fetch you can create named ref (branch or tag) at specific commit using web-interface and then clone it, eg. if you marked your commit with temp/1 branch:

git clone --branch=temp/1 --depth=1 http://example.com/your-repo

This seems to be the cheapest way (in terms of download size) to fetch some commit provided that you have "create reference" access right to remote repository

Upvotes: 1

David
David

Reputation: 1

There is a way to do this:

git show ee9c5cfad29c8a13199962614b9b16f1c4137ac9 > myCommittedCode.txt

Upvotes: -1

Daenyth
Daenyth

Reputation: 37441

In this case, if all you want is the diff, you can download it from the web frontend for the kernel repo at this url:

http://git.kernel.org/?p=linux/kernel/git/davem/net-2.6.git;a=commitdiff_plain;h=ee9c5cfad29c8a13199962614b9b16f1c4137ac9

You can play with the url to get other commits.

Upvotes: -1

minhas23
minhas23

Reputation: 9671

I was in the same need. I need to download a patch of a specific commit which I need to apply onto another branch.

I used: git format-patch sha-id

Just specify the sha-id which is just older than the required commit. It will give .patch files corresponding to the all commits.

Upvotes: 0

Jorri Fransen
Jorri Fransen

Reputation: 31

I ran in to this problem today, and have found a way to download archives for a specific commit. If you go to a repository on git.kernel.org there is a clone section on the bottom. The bottom url is a google git mirror. You will be able do download archives for specific commits from here.

Upvotes: 0

araemo
araemo

Reputation: 29

I know this works when you have a clone of the repo (or a similar repo)..

git fetch git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6.git
git cherry-pick ee9c5cfad29c8a13199962614b9b16f1c4137ac9

Fetch downloads the remote refs (but not the whole repo, I don't think) so that you can reference them with the other commands. Then you cherry-pick that one commit, and it attempts to apply the diff to your local tree.

I haven't tried it without a git repo locally, but I have tried it on repos that are not forks of eachother. you may get merge conflicts, but you can clean those up manually.

Upvotes: 2

Josh Lee
Josh Lee

Reputation: 177604

This would appear to be impossible. According to a discussion on kernel.org, the protocol will only allow named refs to be fetched. If you don't wish to download the snapshot from the git website, you'll have to clone the entire repo.

(You may wish to read the manuals for git-fetch and git-ls-remote.)

Upvotes: 22

mipadi
mipadi

Reputation: 410722

In the general case, you can do this using the --remote flag to git archive, like so:

$ git archive -o repo.tar --remote=<repo url> <commit id>

So in your example, you'd use:

$ git archive -o repo.tar --remote=git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6.git ee9c5cfad29c8a13199962614b9b16f1c4137ac9

That'll give you the state of the repo at that point in time. Note that you won't get the whole repo, so you can't actually interact with the upstream repo with what you've downloaded.

However, using git archive remotely has to be enabled server-side, and it isn't on the Linux kernel's Git server. You can, however, grab a copy by using a URL of the form http://git.kernel.org/?p=<path to repo>;a=snapshot;h=<commit id>;sf=tgz. So for your repo, you could use, say, wget or curl to grab the file using that URL.

Upvotes: 14

Joshua Smith
Joshua Smith

Reputation: 6621

git show COMMITID

But you have to clone the repo. No way around that, I think. But you can do a shallow clone using the --depth arg.

Also, found a good SO post that covers this topic in greater depth Browse and display files in a git repo without cloning

Upvotes: 1

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