![]() # create script named 'git-shout' # sidenote: this is 'heredoc' syntax cat git-shout As it turns out, any executable available in your PATH that starts with git- can be used as a Git subcommand. Git clone and git push are two different built-in subcommands of git. ![]() Understanding how it does these things in more detail can give us more confidence when using Git LFS and guide us in the right direction when something goes wrong. To perform these three magic tricks, Git LFS needs to intercept add, push and checkout and needs to keep track of which pointer files map to which large files in the Git LFS Cache. ![]() This means that you only store locally the large files that you actually checkout or that you committed yourself, not all versions of large files in the history of the repo. Whenever you do a git checkout, Git LFS will find all the pointer files and replace them with the files themselves, downloading whatever files necessary from the remote server. This is done using the Git LFS API that the server must implement. When you git push your commits, the new large files in the local Git LFS Cache are uploaded to the server separately. Git LFS replaces the large files that you try to git add for commit in the repo with pointer files, files that just contain an identifier of the content, and it stores the content files themselves in a separate local folder, the Git LFS Cache at. There are three main things that Git LFS does for us: Now all users can add files to the repo as normal and Git LFS will work away in the background. gitattributes file is checked into the repository Run git lfs track "*.psd", replacing “*.psd” with the filename pattern that you want to track.This is done for you on GitHub, GitLab (requires some configuration) and Bitbucket. The remote Git server must be set up to support the Git LFS API. The following instructions can be found on the Git LFS website: Git LFS does not save space on your server, but saves you space on your local copies of the repo. Ideally, you would only download and store the versions of this file that you actually need to view or work with, but you don’t want that to get in the way of your normal Git workflow. See Git Internals - Packfiles for more.Įven with packing, if a repo has a large file that changes often then this can quickly require a lot of storage space to make every version available locally, even though you might rarely work with historical versions of this large file. This saves a lot of space if the differences are small relative to the size of the file. When it notices that there are lots of loose objects it will do something called ‘packing’, where it remembers one version of the file as well as the differences between that and the other versions. It starts by storing all the different versions of the file separately in full, it calls these ‘loose objects’. Git needs to remember every version of every file in the repository. Git pre-push hooks to upload the large files to a server.Git clean and smudge filters to replace large files with pointer files. ![]()
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