What is a git ref spec?
Refspecs. A refspec maps a branch in the local repository to a branch in a remote repository. This makes it possible to manage remote branches using local Git commands and to configure some advanced git push and git fetch behavior.
What is ref in git URL?
A ref is anything pointing to a commit, for example, branches (heads), tags, and remote branches. You should see heads, remotes, and tags in your . git/refs directory, assuming you have all three types of refs in your repository.
What does git push mean?
The git push command is used to upload local repository content to a remote repository. Pushing is how you transfer commits from your local repository to a remote repo. It’s the counterpart to git fetch , but whereas fetching imports commits to local branches, pushing exports commits to remote branches.
What does git show ref do?
Displays references available in a local repository along with the associated commit IDs. Results can be filtered using a pattern and tags can be dereferenced into object IDs. Additionally, it can be used to test whether a particular ref exists. By default, shows the tags, heads, and remote refs.
How many head references are in a local repository?
one HEAD reference
HEAD is a reference to the current commit. It usually points to the branch label of the current branch. Because it only points to the current commit and there can only be one current commit, there is only one HEAD reference in your local repository.
What is ref head master?
refs/heads/master is a branch in your working copy named master . Frequently that is a tracking branch of refs/remotes/origin/master because origin is the default name for the remote created by git clone and its primary branch is usually also named master .
What is the difference between git push and git push?
Git push origin is usually used only where there are multiple remote repositories and you want to specify which remote repository should be used for the push. For a git push origin command: git push command updates remote references using local references by sending objects necessary to complete the given references.
What is the difference between a local and a remote repository?
Local repositories reside on the computers of team members. In contrast, remote repositories are hosted on a server that is accessible for all team members – most likely on the internet or on a local network.
What is staging area or index in git?
The staging area can be described as a preview of your next commit. When you create a git commit, Git takes changes that are in the staging area and make them as a new commit. You are allowed to add and remove changes from the staging area. The staging area can be considered as a real area where git stores the changes.
What does the + sign mean in a Git refspec?
The Refspec. The + tells Git to update the reference even if it isn’t a fast-forward. In the default case that is automatically written by a git remote add command, Git fetches all the references under refs/heads/ on the server and writes them to refs/remotes/origin/ locally. So, if there is a master branch on the server,…
What is the head ref in Git?
HEAD is a very special ref: it is the currently checked out commit. It can be either a symbolic ref that points to a branch, or a direct pointer to a commit. Unless you’re manually updating the HEAD ref with git update-ref or git symbolic-ref, it can have no other values.
What is the output of Git push?
The output of “git push” depends on the transport method used; this section describes the output when pushing over the Git protocol (either locally or via ssh). The status of the push is output in tabular form, with each line representing the status of a single ref. Each line is of the form:
How to fetch all refs in a git repository?
The fetch refspec is +refs/heads/*:refs/remotes/origin/*, this means ‘fetch all refs under refs/heads, and map them to refs/remotes/origin’. The leading + means that git will accept any update, not just updates that are descendants of the current values of the local refs, thus allowing history rewriting.