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To commit a change in git on the command line, assuming git is installed, the following command is run: [1] git commit -m 'commit message' This is also assuming that the files within the current directory have been staged as such: [2] git add . The above command adds all of the files in the working directory to be staged for the git commit.
The pushd ('push directory') command saves the current working directory to the stack then changes the working directory to the new path input by the user. If pushd is not provided with a path argument , in Unix it instead swaps the top two directories on the stack, which can be used to toggle between two directories.
Most programming languages provide an interface to the file system functions of the operating system, including the ability to set (change) the working directory of the program. In the C language , the POSIX function chdir() effects the system call which changes the working directory. [ 11 ]
The users of the version control system can branch any branch. Branches are also known as trees, streams or codelines. The originating branch is sometimes called the parent branch, the upstream branch (or simply upstream, especially if the branches are maintained by different organizations or individuals), or the backing stream.
JGit is used in the Gerrit code-review tool, and in EGit, a Git client for the Eclipse IDE. [76] Go-git is an open-source implementation of Git written in pure Go. [77] It is currently used for backing projects as a SQL interface for Git code repositories [78] and providing encryption for Git. [79]
Changeset content should involve only one task or fix, and contain only code which works and does not knowingly break existing functionality. [ 13 ] Changeset descriptions should be short, recording why the modification was made, the modification's effect or purpose, and describing non-obvious aspects of how the change works.
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.
Historically, branch prediction took statistics, and used the result to optimize code. A programmer would compile a test version of a program, and run it with test data. The test code counted how the branches were actually taken. The statistics from the test code were then used by the compiler to optimize the branches of released code.