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In version control systems, a repository is a data structure that stores metadata for a set of files or directory structure. [1] Depending on whether the version control system in use is distributed, like Git or Mercurial, or centralized, like Subversion, CVS, or Perforce, the whole set of information in the repository may be duplicated on every user's system or may be maintained on a single ...
git clone [URL], which clones, or duplicates, a git repository from an external URL. git add [file], which adds a file to git's working directory (files about to be committed). git commit -m [commit message], which commits the files from the current working directory (so they are now part of the repository's history). A .gitignore file may be ...
Fossil [open, distributed] – written by D. Richard Hipp for SQLite; distributed revision control, wiki, bug-tracking, and forum (all-in-one solution) with console and web interfaces; single portable executable and single repository file; Git [open, distributed] – designed by Linus Torvalds for Linux kernel development; decentralized; goals ...
Distributed, repositories act as peers, and users typically have a local repository with version history available, in addition to their working copies. Concurrency model, how changes to the working copy are managed to prevent simultaneous edits from causing nonsensical data in the repository.
Distributed version control systems (DVCS) use a peer-to-peer approach to version control, as opposed to the client–server approach of centralized systems. Distributed revision control synchronizes repositories by transferring patches from peer to peer. There is no single central version of the codebase; instead, each user has a working copy ...
Depending on whether the version control system in use is distributed, like Git or Mercurial, or centralized, like Subversion, CVS, or Perforce, the whole set of information in the repository may be duplicated on every user's system or may be maintained on a single server. [37]
Centralized version control systems, such as Subversion and CVS simply use incrementing numbers as identifiers. [ 10 ] [ 11 ] Distributed version control systems, such as Git , generate a unique identifier by applying a cryptographic hash function to the changeset.
Unity Version Control is a client/server system although in current terms of version control it can also be defined as a distributed revision control system, due to its ability to have very lightweight servers on the developer computer and push and pull branches between servers (similar to what Git and Mercurial do).