As user logs out, his repository clone is copied back to main repository as a branch, thus storing only his "unapplied changes", if there are any, which is fairly space-efficient. There are also other points that I've missed, but they're not that bad compared to the first one: The very pattern of having "thick" user's edit state is controversial in terms of normal ORMs, such as ActiveRecord, Hibernate, DataMapper, Tower, etc.
As much as I've searched for, there's zero existing free codebase for doing that approach to git from popular frameworks. Improve this answer. Probably a bit late to the party, but I had a similar requirement to this and actually went down the git-route.
After some digging around with the git internals, I found a way to make it work. The idea is to work with a bare repository. There are some drawbacks, but I find it to be workable. I've written everything in a post you might want to check out if anything, for interest's sake : kenneth-truyers. Another reason for me not doing this is query capabilities. Document stores often index documents, making it easy to search within them.
This will not be straight forward with git. Some of the issues include performance matching between the 2 key modules, the database and the VCS, for an application with high frequency data update activity, Scaling of resources storage and processing power over time on the git side as the data , and users grow: steady, exponential or eventually plateau's Of the cocktail above, here is what I'm currently brewing using Git for the VCS initially considered good old CVS for the due to the use of only changesets or deltas between 2 version using mysql due to the highly structured nature of my data, xml with strict xml schemas toying around with MongoDB to try a NoSQl database, which closely matches the native database structure used in git Some fun facts - git actually does clear things to optimize storage, such as compression, and storage of only deltas between revision of objects - YES, git does store only changesets or deltas between revisions of data objects, where is it is applicable it knows when and how.
Again, at the expense of sweat capital, it may provide more interesting possibilities for integrating the 2, and performance tweaking If you got this far, let me if the above may be applicable to your case, and assuming it would be , how it would square up to some of the aspect in your last comprehensive performance analysis.
The documentation includes some ideas about performance, tradeoffs, etc. Use the commit hash since refs might changed during the session. Returns a SHA1 hash to the blob. Returns a SHA1 hash to the commit object N. Parent commit should the same commit as in the first phase.
Ideas to make it easier are welcome. That's generally an approach that leads nowhere, unless you want to have a full-blown concept of transaction and UI for manual conflict resolution. General idea for conflicts is to make user resolve it right on commit i. When you allow two users to commit successfully and then find out in a async cronjob that things went south, there's generally no one available to resolve stuff. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password.
Post as a guest Name. Email Required, but never shown. The Overflow Blog. This includes comments, review labels, … Prior to that, they were already storing per-repo configuration in a special git branch. In git-config format obviously : The whole system is written in Java and uses JGit as the git implementation.
A nice side-effect of that is that gerrit replicas essentially git fetch the various repositories from the master. Matrix is, in addition to being an alternative to slack, at its core a distributed graph database. The creators themselves liken it to git. Git is meant for trees of text files that change every few hours or days.
There are some databases that have DVCS-like semantics that could be compared to git; for example, Noms. Home Recent Comments Search. Databases that use git as a backend? This is due to a bug or lack of support for VSTS in older libssh2 releases. Known working releases include libssh2 1. At the time of this writing, 1. Since upgrading libssh2 would require rebuilding many other packages curl, etc. For HTTPS repositories which require authentication, the username and password can be configured in one of two ways.
The auth parameters pubkey, privkey, etc. Also, in the absence of a user in the repo URL, GitPython will just as SSH does attempt to login as the current user in other words, the user under which the Master is running, usually root. The Host parameter should be a hostname or hostname glob that matches the domain name of the git repository.
If the master is also a minion, this can be done using the ssh. If not, then the easiest way to add the key is to su to the user usually root under which the salt-master runs and attempt to login to the server via SSH:. To verify that the correct fingerprint was added, it is a good idea to look it up. One way to do this is to use nmap :. AWS tracks usage of nmap and may flag it as abuse. On AWS hosts, the ssh-keygen method is recommended for host key verification.
As of OpenSSH 6. By default, Salt updates the remote fileserver backends every 60 seconds. However, if it is desirable to refresh quicker than that, the Reactor System can be used to signal the master to update the fileserver on each push, provided that the git server is also a Salt minion. There are three steps to this process:.
On the git server, add a post-receive hook. If the user executing git push is the same as the minion user, use the following hook:. To enable other git users to run the hook after a push , use sudo in the hook script:. If using sudo in the git hook above , the policy must be changed to permit all users to fire the event. Add the following policy to the sudoers file on the git server. The update argument right after event. The root user name in the hook script and sudo policy should be changed to match the user under which the minion is running.
The git external pillar a. This rewrite brings with it pygit2 support allowing for access to authenticated repositories , as well as more granular support for per-remote configuration. This configuration schema is detailed here. In versions 0. While not fatal to the fetch process, these interrupt the fileserver update that takes place before custom types are synced, and thus interrupt the sync itself. Try disabling the git fileserver backend in the master config, restarting the master, and attempting the sync again.
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Maybe it will give you ideas. At the very least, it's a great excuse to spend an afternoon with Git. Oooh it would be neat to port this to isomorphic-git.
Then it could run directly in the browser without a Node server. You have my attention! I hadn't heard of isomorphic-git before. I'll check it out, thanks for the tip! Use Git as the backend for chat Use Git as the backend for chat. GIC is a prototype chat application that showcases a novel way to use Git. Get the highlights in your inbox every week. Today, we'll look at GIC, a Git-based chat application Meet GIC While the authors of Git probably expected frontends to be created for Git, they undoubtedly never expected Git would become the backend for, say, a chat client.
Get set up GIC uses Git as its engine, so you need an empty Git repository to serve as its chatroom and logger. What will they think of next? Did you? Topics Git. About the author. He has worked in the film and computing industry, often at the same time. He is one of the maintainers of the Slackware-based multimedia production project Slackermedia.
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