- #CRAZY OLD GIT DEFINITION FULL VERSION#
- #CRAZY OLD GIT DEFINITION SOFTWARE#
- #CRAZY OLD GIT DEFINITION CODE#
The content of the files as well as the true relationships between files and directories, versions, tags and commits, all of these objects in the Git repository are secured with a cryptographically secure hashing algorithm called SHA1.
#CRAZY OLD GIT DEFINITION CODE#
Git has been designed with the integrity of managed source code as a top priority. When she is ready to send all of the individually committed changes to the remote repository, Alice can "push" them in one command. Alice can then return to the 2.0 branch to continue working on new features for 2.0 and all of this can occur without any network access and is therefore fast and reliable. The purpose of this is to enable Alice's team to ship a bug fix release, version 1.3.1, before version 2.0 is ready.
#CRAZY OLD GIT DEFINITION SOFTWARE#
Alice then switches to the version 1.3 branch of the same software to fix a bug that affects only that older version. Naturally these are stored as separate pieces of work in the version history. She then works on a second feature and commits those changes too. The object format of Git's repository files uses a combination of delta encoding (storing content differences), compression and explicitly stores directory contents and version metadata objects.īeing distributed enables significant performance benefits as well.įor example, say a developer, Alice, makes changes to source code, adding a feature for the upcoming 2.0 release, then commits those changes with descriptive messages. After all, source code files are frequently renamed, split, and rearranged. Unlike some version control software, Git is not fooled by the names of the files when determining what the storage and version history of the file tree should be, instead, Git focuses on the file content itself. The algorithms implemented inside Git take advantage of deep knowledge about common attributes of real source code file trees, how they are usually modified over time and what the access patterns are. Committing new changes, branching, merging and comparing past versions are all optimized for performance. The raw performance characteristics of Git are very strong when compared to many alternatives.
In addition to being distributed, Git has been designed with performance, security and flexibility in mind.
#CRAZY OLD GIT DEFINITION FULL VERSION#
Rather than have only one single place for the full version history of the software as is common in once-popular version control systems like CVS or Subversion (also known as SVN), in Git, every developer's working copy of the code is also a repository that can contain the full history of all changes. Having a distributed architecture, Git is an example of a DVCS (hence Distributed Version Control System). Developers who have worked with Git are well represented in the pool of available software development talent and it works well on a wide range of operating systems and IDEs (Integrated Development Environments). A staggering number of software projects rely on Git for version control, including commercial projects as well as open source. Git is a mature, actively maintained open source project originally developed in 2005 by Linus Torvalds, the famous creator of the Linux operating system kernel. By far, the most widely used modern version control system in the world today is Git.
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