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Repository init: Create a new empty repository (i.e., version control database) clone: Create an identical instance of a repository (in a safe transaction) pull: Download revisions from a remote repository to a local repository; push: Upload revisions from a local repository to a remote repository
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 ...
In addition, it permits developers to locally clone an existing code repository and work on such from a local environment where changes are tracked and committed to the local repository [10] allowing for better tracking of changes before being committed to the master branch of the repository. Such an approach enables developers to work in local ...
A software repository, or repo for short, is a storage location for software packages. Often a table of contents is also stored, along with metadata. A software repository is typically managed by source or version control, or repository managers. Package managers allow automatically installing and updating repositories, sometimes called "packages".
In mathematics, a submodular set function (also known as a submodular function) is a set function that, informally, describes the relationship between a set of inputs and an output, where adding more of one input has a decreasing additional benefit (diminishing returns).
If N is an essential submodule of M (both right modules) then M/N is singular. If M is a free module, or if R is right nonsingular, then the converse is true. A semisimple module is nonsingular if and only if it is a projective module.
A submodule of a -module is a subgroup that is stable under the action of , i.e. for all and . Given a submodule A {\displaystyle A} of M {\displaystyle M} , the quotient module M / A {\displaystyle M/A} is the quotient group with action g ⋅ ( m + A ) = g ⋅ m + A {\displaystyle g\cdot (m+A)=g\cdot m+A} .