• Source: Codebase

In software development, a codebase (or code base) is a collection of source code used to build a particular software system, application, or software component. Typically, a codebase includes only human-written source code system files; thus, a codebase usually does not include source code files generated by tools (generated files) or binary library files (object files), as they can be built from the human-written source code. However, it generally does include configuration and property files, as they are the data necessary for the build.
A codebase is typically stored in a source control repository in a version control system. A source code repository is a place where large amounts of source code are kept, either publicly or privately. Source code repositories are used most basically for backups and versioning, and on multi-developer projects to handle various source code versions and to provide aid in resolving conflicts that arise from developers submitting overlapping modifications.
Subversion, Git and Mercurial are examples of popular tools used to handle this workflow, which are common in open source projects.
For smaller projects, its code may be kept as a non-managed set of files (even the Linux kernel was maintained as a set of files for many years).




Distinct and monolithic codebases


Multiple projects can have separate, distinct codebases, or can have a single, shared or monolithic codebase. This is particularly the case for related projects, such as those developed within the same company. In more detail, a monolithic codebase typically entails a single repository (all the code in one place), and often a common build system or common libraries. Whether the codebase is shared or split does not depend on the system architecture and actual build results; thus, a monolithic codebase, which is related to the actual development, does not entail a monolithic system, which is related to software architecture or a single monolithic binary. As a result, a monolithic codebase may and (for large codebases) often will consist of separate components, instead of carrying only a single system or single binary; a distributed codebase (with multiple components) can be used to build a single monolithic system or even a single binary. For example, the Linux kernel is architecturally a single monolithic kernel, but it consists of separate binaries (loadable components), and is developed in multiple distributed repositories.
There are both advantages and disadvantages to a monolithic codebase when it is compared to a distributed codebase. Most simply, a monolithic codebase simplifies integration‍—‌changes to different components or refactoring of code between components can be done easily and atomically‍—‌and allows operations across the entire codebase, but requires a larger repository and makes it easier to introduce wide-ranging technical debt. A separate codebase or a distributed codebase keeps individual repositories smaller and more manageable, enforcing at the same time separation between components, but it also requires integration between codebases (or with the main repository), and complicates changes that span multiple codebases.
In terms of standards, referring to multiple codebases as "distinct" declares that there are independent implementations without shared source code and that, historically, these implementations did not evolve from a common project. This may be a way of demonstrating interoperability by showing two independent pieces of software that implement a given standard.




Examples


Some notably large codebases include:

Google: monolithic, 1 billion files, 9 million source code files, 2 billion lines of source code, 35 million commits in total, 86 TB total size (January 2015)
Facebook: monolithic, 8 GB (repo 54 GB including history, 2014), hundreds of thousands of files (2014)
Linux kernel: distributed, over 15 million lines of code (as of 2013 and kernel version 3.10)




See also






References

• Source: CodeBase

CodeBase is a tech ecosystem support organisation that has supported over 500 startups and scaleups, who have collectively raised over £4 billion. CodeBase is promotes collaboration in tech innovation, by working with startups, scaleups, corporates, governments, academia and the third sector.
CodeBase provides the workspace environment for startups to grow, delivers expert educational programmes and industry accelerators, and fosters connections through events, meetups, mentorship matching, and corporate-startup collaboration programmes.
Launched in Edinburgh in 2014, CodeBase offers startup incubation space through hotdesking, coworking, and dedicated office space. Further hubs opened in Stirling, in 2017, followed by Aberdeen in 2019, along with popup hubs across the UK.
CodeBase is for startup founders, would-be founders, and employees across the UK - particularly within the tech ecosystem - who want to join a community of like-minded people, learn from others, and access support to help grow their business.
CodeBase works with businesses looking to innovate through collaboration with startups and tech businesses in their sectors. Governments and enterprise organisations looking for support in delivering large scale programmes.




Partnerships


CodeBase has supported various companies including FanDuel, Cloudsoft, Administrate, Deliveroo, TV Squared, Outplay Entertainment, Rightscale, Speech Graphics, Square, and Skyscanner.
CodeBase has partnered with the Scottish Government, UK Government, Legal Geek, Barclays, Edinburgh City Council, Edinburgh Futures Institute, the University of Edinburgh, Opportunity North East (ONE) and more to deliver startup programmes.




References






External links


Official website

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