Reading Notes 3

A Guide on Git

A system that allows you to revisit various versions of a file or set of files by recording changes.
You can revert a file or project to a previous version, track modifications and modifying individuals, and compare changes.

A Local VCS entails one database on your hard disk that stores changes to files.

The need for collaboration within a developer team on a single file or set of files.
This system entails a single server storing all changes and file versions, which can be accessed by various clients.
This streamlined the collaboration process so other programmers, team members, and administrators can go within the file.

A Distributed Version Control systems (DVCS) addresses the major vulnerability of the CVS: the server as a single point of failure.
If the CVS goes down collaborators cannot work with each other on a file or save changes and new versions.
But any work on local machinces wont be lost.
To prevent corruption, a DVCS alloes clients to create mirrored repositories.
DVCS allows programmers working in teams to collaborate with various ways to complete a joint project.

Git is a DVCS that stores data in a file system made up of snapshots.
Each time you save a changed version of your project (called commit) Git creates a snapshot of the file and stores a reference to it.

Git relies on local operations because most necessary information can be found in local resources.
Its a way to allow programmers to work on a project without fetching history information from the server, and also allows them to work online or offline.

Every single change applied to any file or directory is tracked by Git. And, as the gatekeeper, Git will always detect file corruption or loss of information in transit.

Git is set up to greatly minimize the possibility of irreversible damage to files, such as accidentally lost data. Git makes it extremely difficult for a snapshot of your file that is committed to be lost.