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Upstream repository or source code distribution version, which can either be a version-tagged release for which the source code has specifically been packaged, a specific commit, or master (jargon for latest commit). Where custom distributions (such as forks) may have missed out on bugfixes and improvements (maturing of the project tied to the ...
Lock, changes are disallowed until the user requests and receives an exclusive lock on the file from the master repository. Merge, users may freely edit files, but are informed of possible conflicts upon checking their changes into the repository, whereupon the version control system may merge changes on both sides, or let the user decide when ...
Another approach is to split a branch off the trunk, implement changes in that branch and merge the changes back into the trunk when the branch has proven to be stable and working. Depending on development mode and commit policy the trunk may contain the most stable or the least stable or something-in-between version.
Contributions to a source code repository that uses a distributed version control system are commonly made by means of a pull request, also known as a merge request. [11] The contributor requests that the project maintainer pull the source code change, hence the name "pull request".
PVCS Version Manager (originally named Polytron Version Control System) is a software package by Serena Software Inc., for version control of source code files.. PVCS follows the "locking" approach to concurrency control; it has no merge operator built-in (but does, nonetheless, have a separate merge command).
Manual merging is also required when automatic merging runs into a change conflict; for instance, very few automatic merge tools can merge two changes to the same line of code (say, one that changes a function name, and another that adds a comment). In these cases, revision control systems resort to the user to specify the intended merge result.
Git comes with a Tcl/Tk GUI, which allows users to perform actions such as creating and amending commits, creating and merging branches, and interacting with remote repositories. [ 96 ] In addition to the official GUI, many 3rd party interfaces exist that provide similar features to the official GUI distributed with Git.
The original repository is the master, from which creative flavors and spins may already be offered by the original producers. A remaster production supports any additional software from outside it, supports the new mixture of software from the original repository, or keeps the modifications of original masters on the outside the master repository.