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Please (software)
In version control, version-control systems, a monorepo ("wikt:mono-#English, mono" meaning 'single' and "repo" being short for 'repository (version control), repository') is a software-development strategy in which the code for a number of projects is stored in the same repository. This practice dates back to at least the early 2000s, when it was commonly called a shared codebase. Google, Meta Platforms, Meta, Microsoft, Uber, Airbnb, and Twitter all employ very large monorepos with varying strategies to scale build systems and version control software with a large volume of code and daily changes. A related concept is a monolithic application, but whereas a monolith combines its sub-projects into one large project, a monorepo may contain multiple independent projects. Advantages There are a number of potential advantages to a monorepo over individual repositories: ; Ease of code reuse : Similar functionality or communication protocols can be abstracted into shared libraries a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Version Control
Version control (also known as revision control, source control, and source code management) is the software engineering practice of controlling, organizing, and tracking different versions in history of computer files; primarily source code text files, but generally any type of file. Version control is a component of software configuration management. A ''version control system'' is a software tool that automates version control. Alternatively, version control is embedded as a feature of some systems such as word processors, spreadsheets, collaborative groupware, web docs, and content management systems, e.g., Help:Page history, Wikipedia's page history. Version control includes viewing old versions and enables Reversion (software development), reverting a file to a previous version. Overview As teams develop software, it is common to Software deployment, deploy multiple versions of the same software, and for different developers to work on one or more different versions ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Code Ownership
In software engineering, code ownership is a term used to describe control of an individual software developer or a development team over source code modifications of a module or a product. Definitions While the term is very popular, there is no universally accepted definition of it. Koana et al., in their 2024 literature review, found 28 different definitions, and classified them as follows: * ''Psychological ownership'' is a feeling by the developer of ownership and pride in the particular element of the project; * ''Corporeal ownership'' is a set of formal or informal rules defining responsibility for a particular software piece. The rules depend on the development approach taken by the team, but generally can be partitioned along the lines of "what is being owned?" / "who owns it?" / "what is the degree of control?": ** while the answer to "what?" is typically some part of the source code, the ownership concept have been also applied to other artifacts of the software develo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buck (software)
Buck is a multi-language build system developed and used by Meta Platforms, Inc. It was designed for building small, reusable modules consisting of code and resources within a monorepo. It supports many programming languages, including C++, Swift, Unix Shell, Java, Kotlin, Python, Lua, OCaml, Rust and Go. It can produce binary outputs for a variety of target platforms including iOS, Android, .NET, and Java virtual machine (VM) runtime systems. Licensing for Buck1 is under Apache License 2.0, while Buck2 is under either MIT or Apache 2.0. Buck requires the explicit declaration of dependencies. Because all dependencies are explicit and Buck has a directed acyclic graph of all source files and build targets, Buck can perform incremental recompilation, only rebuilding targets downstream of files that have changed. Buck computes a key for each target that is a hash of the contents of the files it depends on. It stores a mapping from that key to the build target in a build cache. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Directed Acyclic Graph
In mathematics, particularly graph theory, and computer science, a directed acyclic graph (DAG) is a directed graph with no directed cycles. That is, it consists of vertices and edges (also called ''arcs''), with each edge directed from one vertex to another, such that following those directions will never form a closed loop. A directed graph is a DAG if and only if it can be topologically ordered, by arranging the vertices as a linear ordering that is consistent with all edge directions. DAGs have numerous scientific and computational applications, ranging from biology (evolution, family trees, epidemiology) to information science (citation networks) to computation (scheduling). Directed acyclic graphs are also called acyclic directed graphs or acyclic digraphs. Definitions A graph is formed by vertices and by edges connecting pairs of vertices, where the vertices can be any kind of object that is connected in pairs by edges. In the case of a directed graph, each edg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Continuous Testing
Continuous testing is the process of executing automated tests as part of the software delivery pipeline to obtain immediate feedback on the business risks associated with a software release candidate.Part of the Pipeline: Why Continuous Testing Is Essential by Adam Auerbach, TechWell Insights August 2015The Relationship between Risk and Continuous Testing: An Interview with Wayne Ariola by Cameron Philipp-Edmonds, Stickyminds December 2015 Continuous testing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Software Build
A software build is the process of converting source code files into standalone artifact (software development), software artifact(s) that can be run on a computer, or the result of doing so. In software production, builds optimize software for performance and distribution, packaging into formats such as '.''exe'; '.deb'; '.apk. The build process often employs specialized tools such as CMake, Make, or Gradle, and integrates with automation systems including Jenkins (software), Jenkins or Git Actions. Despite advancements, challenges such as dependency conflicts, platform compatibility, and long compile times, remain problems. Software development In software development, building software is an end-to-end process that involves many distinct functions. Some of these functions are described below. Version control The version control function carries out activities such as workspace creation and updating, baselining and reporting. It creates an environment for the build process ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virtual File System For Git
Virtual File System for Git (VFS for Git), developed by Microsoft, is an extension to the Git version control system. Overview VFS for Git is designed to ease the handling of enterprise-scale Git repositories, such as the Microsoft Windows operating system (whose development switched to Git under Microsoft's internal "One Engineering System" initiative). The system exposes a virtual file system that only downloads files to local storage as they are needed. History VFS for Git was originally named Git Virtual File System (GVFS). However due to complaints by the developers of GNOME over confusion with GNOME Virtual File System, Microsoft announced that it would solicit ideas for a new name of the software in June 2018, following its acquisition of GitHub. Its first release under the new name was in August 2018. In November 2017, GitHub announced that it would support VFS for Git. VFS for Git has been superseded by Scalar. Scalar was then integrated into the Microsoft Git pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Upstream (software Development)
In software development, when software has been forked or uses a chain of libraries/ dependencies, upstream refers to an issue that occurs in software related to the chain. It is the direction that is toward the original authors or maintainers of software. It is usually used in the context of a version, a bug, or a patch. Upstream development allows other distributions to benefit from it when they pick up the future release or merge recent (or all) upstream patches. Likewise, the original authors (maintaining upstream) can benefit from contributions that originate from custom distributions, if their users send patches upstream. The term also pertains to bugs; responsibility for a bug is said to lie upstream when it is not caused through the distribution's porting, non-upstream modification or integration efforts. Examples * A patch ''sent upstream'' is offered to the original authors or maintainers of the software. If accepted, the authors or maintainers will include the p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piper (source Control System)
Piper is a centralized version control system used by Google for its internal software development. Originally designed for Linux, it supports Microsoft Windows and macOS since October 2012. Scale Since its founding years Google used a central codebase shared by the developers. For over 10 years Google relied on a single Perforce instance, using proprietary caching for scalability. This mode of operation was kept as Google grew, the need for further scaling led to the development of Piper. Currently, Google's version control "is an extreme case": as of 2016, the repository was storing 86 terabytes of data comprising two billion lines of code in nine million files (two orders of magnitude more than in the Linux kernel repository). 25 thousand developers contributed 16 thousand changes daily, with additional 24 thousand commit operations by bots. Read requests each day are measured in billions. Architecture Piper uses regular Google Cloud storage solutions, originally Bigtabl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perforce
Perforce Software, Inc. is an American developer of software used for developing and running applications, including version control software, web-based repository management, developer collaboration, application lifecycle management, web application servers, debugging tools, platform automation, and agile planning software. The company is based in Minneapolis, Minnesota, and is equally owned by private equity firms Clearlake Capital and Francisco Partners. History Perforce was founded in 1995 in Alameda, California by Christopher Seiwald, a software developer and computer science graduate from UC Berkeley. Its first product was also called Perforce, and was a version control system allowing companies to collaborate on large software projects by keeping track of changes to both the source code and binary files. In June 2013, the company released P4 Code Review (formerly Helix Swarm), a tool for developers working in different geographic areas to collaborate on code review. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mercurial
Mercurial is a distributed revision control tool for software developers. It is supported on Microsoft Windows, Linux, and other Unix-like systems, such as FreeBSD and macOS. Mercurial's major design goals include high performance and scalability, decentralization, fully distributed collaborative development, robust handling of both plain text and binary files, and advanced branching and merging capabilities, while remaining conceptually simple. It includes an integrated web-interface. Mercurial has also taken steps to ease the transition for users of other version control systems, particularly Subversion. Mercurial is primarily a command-line driven program, but graphical user interface extensions are available, e.g. TortoiseHg, and several IDEs offer support for version control with Mercurial. All of Mercurial's operations are invoked as arguments to its driver program hg (a reference to Hg – the chemical symbol of the element mercury). Olivia Mackall originated Mercu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ultra-large-scale Systems
Ultra-large-scale system (ULSS) is a term used in fields including Computer Science, Software Engineering and Systems Engineering to refer to software intensive systems with unprecedented amounts of hardware, lines of source code, numbers of users, and volumes of data. The scale of these systems gives rise to many problems: they will be developed and used by many stakeholders across multiple organizations, often with conflicting purposes and needs; they will be constructed from heterogeneous parts with complex dependencies and emergent properties; they will be continuously evolving; and software, hardware and human failures will be the norm, not the exception. The term 'ultra-large-scale system' was introduced by Northrop and others to describe challenges facing the United States Department of Defense. The term has subsequently been used to discuss challenges in many areas, including the computerization of financial markets.. . Briefing paper for Government Office for Science, f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
