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Git is distributed: each clone contains the full repository history locally, independent of network access.
Git is a distributed version control system used to manage versions of source code or other data, enabling collaborative development. Unlike traditional client–server systems, Git keeps a full local copy of the repository (including its history) on each developer’s computer, so work and history tracking can continue without network access or a central server. Repositories can synchronize changes with other repositories that share history, and while peers are technically equal, teams often use a central server to host an integrated copy. Git was originally created by Linus Torvalds in 2005 for Linux kernel development, with design goals focused on speed, data integrity, and strong support for distributed, non-linear workflows (such as many parallel branches). Its design emphasizes lightweight branching and merging, cryptographic integrity of commit history (commit IDs depend on the full history), and efficient handling of large projects through snapshot-based storage and mechanisms like garbage collection and packfiles. Git also supports multiple merge strategies and provides compatibility with existing systems and protocols (e.g., CVS emulation and git-svn).
Git is distributed: each clone contains the full repository history locally, independent of network access.
Git’s design targets speed, data integrity, and non-linear workflows using lightweight branches and robust merging tools.
Commit history integrity is cryptographically linked (commit IDs depend on prior history), and Git uses snapshot-based storage with packing/garbage collection for efficiency.
A version control approach where each participant holds a full copy of the repository history locally, not just a working copy.
The stored project data and history tracked by Git, including hidden metadata files that enable version control.
A recorded snapshot of the project state in Git whose identifier is derived from the commit’s content and history.
A lightweight reference to a specific commit, enabling parallel development and non-linear workflows.
A set of rules Git uses to combine changes from different branches, such as recursive or octopus merging.
A hash-based structure where commit identifiers reflect the entire history, making tampering detectable.
An efficient storage format in Git that delta-compresses many objects into fewer files to reduce space and improve performance.
Git’s process for removing unused or dangling objects that accumulate after operations like aborting or backing out changes.
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