Linuxteaching
A git submodule is a record within a host git repository that points to a specific commit in another external repository. Submodules are very static and only track specific commits. Submodules do not track git refs or branches and are not automatically updated when the host repository is updated.
- Are git submodules a good idea?
- How do you pull a submodule?
- What is a submodule in github?
- How do I add a submodule to a Git repository?
- Why you should not use git submodules?
- What is the use of git submodules?
- When you run git commit which hook is called?
- How do I change a submodule to a specific commit?
- Where is git submodule commit stored?
- Are git hooks files version controlled?
- How do I initialize a git submodule?
- Where is .gitmodules file?
Are git submodules a good idea?
Its more accurate to say that git submodules are useful when you want to share code that you also need change along with the consumer of that code. ... There's additional complexity that comes along with using git submodules, and this complexity isn't worth it if there are simpler ways of sharing code.
How do you pull a submodule?
To pull everything including the submodules, use the --recurse-submodules and the --remote parameter in the git pull command .
What is a submodule in github?
Submodules allow you to include or embed one or more repositories as a sub-folder inside another repository.
How do I add a submodule to a Git repository?
In order to add a Git submodule, use the “git submodule add” command and specify the URL of the Git remote repository to be included as a submodule. When adding a Git submodule, your submodule will be staged. As a consequence, you will need to commit your submodule by using the “git commit” command.
Why you should not use git submodules?
Git submodules may look powerful or cool upfront, but for all the reasons above it is a bad idea to share code using submodules, especially when the code changes frequently. It will be much worse when you have more and more developers working on the same repos.
What is the use of git submodules?
Git submodules allow you to keep a git repository as a subdirectory of another git repository. Git submodules are simply a reference to another repository at a particular snapshot in time. Git submodules enable a Git repository to incorporate and track version history of external code.
When you run git commit which hook is called?
The first hook that is run is applypatch-msg . It takes a single argument: the name of the temporary file that contains the proposed commit message. Git aborts the patch if this script exits non-zero. ... The last hook to run during a git am operation is post-applypatch , which runs after the commit is made.
How do I change a submodule to a specific commit?
2 Answers. Submodule repositories stay in a detached HEAD state pointing to a specific commit. Changing that commit simply involves checking out a different tag or commit then adding the change to the parent repository. Add the submodule directory and commit to store the new pointer.
Where is git submodule commit stored?
1 Answer. It is stored in Git's object database directly. The tree object for the directory where the submodule lives will have an entry for the submodule's commit (this is the so-called "gitlink").
Are git hooks files version controlled?
Hooks are local to any given Git repository, and they are not copied over to the new repository when you run git clone . And, since hooks are local, they can be altered by anybody with access to the repository. ... git directory). This lets you edit them like any other version-controlled file.
How do I initialize a git submodule?
Initialize the repository's submodules by running git submodule init followed by git submodule update . Change into the submodule's directory. In this example, cd lib/billboard . The submodule repositories added by git submodule update are “headless”.
Where is .gitmodules file?
The . gitmodules file, located in the top-level directory of a Git working tree, is a text file with a syntax matching the requirements of git-config[1]. The file contains one subsection per submodule, and the subsection value is the name of the submodule.
