Table of Contents
How does Git store file changes?
Every-time you create a file, and track it, git compresses it and stores it into its own data structure. The compressed object will have a unique name, a hash, and will be stored under the object directory. If the file has changed, git compresses it, stores the compressed file in the object folder.
How is Git repository data stored?
Within a repository, Git maintains two primary data structures, the object store and the index. All of this repository data is stored at the root of your working directory in a hidden subdirectory named . git. The next two sections describe the object store and index in more detail.
How does Git know what changed?
Indexing. For every tracked file, Git records information such as its size, creation time and last modification time in a file known as the index. To determine whether a file has changed, Git compares its current stats with those cached in the index. If they match, then Git can skip reading the file again.
How does Git store commit history?
Each object is stored in the . git/objects/ directory, either as a loose object (one per file) or as one of many objects stored efficiently in a pack file.
Where does Git store local changes?
Git stores the complete history of your files for a project in a special directory (a.k.a. a folder) called a repository, or repo.
How does Git maintain the integrity of the files?
Git has integrity, meaning each file is checked (summed) to be sure there was no bit loss during any file manipulation by git. Each snapshot (also called commit) has a unique identifier.
Does Git store file metadata?
Git concentrates on storing file content. If you need to preserve something else you have to to do it yourself or use some kind of metadata helpers like metastore or gibak. By design, git cannot track other aspects of the filesystem, including: File modes (except for the “executable” bit, and being symbolic link)
What should I not store in Git?
Git Don’ts
- Don’t commit directly to the master or development branches.
- Don’t hold up work by not committing local branch changes to remote branches.
- Never commit application secrets in public repositories.
- Don’t commit large files in the repository. This will increase the size of the repository.
How does git keep track of its versions?
Git keeps track of four objects: a blob, a tree, a commit, and a tag. The tree object points to the SHA-1 blobs, the files, in that directory, and other trees, sub-directories at the time of the commit. Each tree object is encrypted into, you guessed it, a SHA-1 hash of its contents, and stored in . git/objects.
Where does git store local changes?