To make a commit appear as if it never happened in the repository, use the git ________ command.
- reset
- revert
- erase
- amend
The correct option is (a) reset. The git reset command is used to undo changes in the repository, including making a commit appear as if it never happened. It's important to note that using reset rewrites history, so caution should be exercised.
What is the main idea behind the Gitflow workflow model?
- Feature branching and version control
- Linear development and continuous integration
- Parallel development with feature branches
- Centralized repository with strict access control
The Gitflow workflow model emphasizes parallel development by using feature branches. Each feature or bug fix is developed in its own branch before being merged back into the main codebase. This helps in managing and organizing complex development scenarios. Understanding Gitflow is crucial for teams working on projects with multiple features or bug fixes in progress simultaneously.
An open source project has received numerous feature requests and bug reports. The maintainers need to prioritize and organize these contributions efficiently. Which Git feature should they primarily use?
- Branching
- Merging
- Pull Requests
- Stashing
In an open source project, maintainers can use Pull Requests to efficiently review, discuss, and prioritize feature requests and bug reports submitted by contributors. Pull Requests provide a structured way to propose changes, discuss them, and merge them into the main codebase. This helps maintainers organize and prioritize contributions effectively.
Which command is used to undo a commit that has not been pushed to the remote repository?
- git reset --soft HEAD^
- git revert HEAD
- git reset --hard HEAD^
- git reset HEAD^
The correct option, git reset --hard HEAD^, is used to undo the last commit completely. It discards changes and moves the HEAD pointer to the previous commit. git reset --soft HEAD^ preserves changes, git revert HEAD creates a new commit to undo changes, and git reset HEAD^ is for unstaging.
To push a specific tag to a remote repository, use the command git push origin ________.
- master
- HEAD
- remote
To push a specific tag in Git, the command is 'git push origin '. This command sends the specified tag to the remote repository named 'origin.'
What are the implications of detaching a Git Submodule?
- No impact
- Submodule becomes independent of the parent repository
- Changes in the submodule are reflected in the parent
- Submodule is deleted from the parent repository
Detaching a Git Submodule means it becomes independent, allowing changes without affecting the parent repository. However, it also implies that the submodule is no longer tied to a specific commit, making it susceptible to unintended changes. Managing submodule detachment is crucial for version consistency.
Open source projects typically use git _______ to manage and review contributions from various developers.
- CLONE
- BRANCH
- FORK
- MERGE
In open source development, developers typically fork a repository to create their copy, make changes, and then submit pull requests. This process allows project maintainers to review and merge contributions systematically.
What is the difference in handling merge requests in GitLab versus pull requests in GitHub?
- Terminology
- Functionality
- Repository hosting
- Collaboration features
While both GitLab and GitHub facilitate code collaboration, understanding the terminology and functionality differences in handling merge requests (GitLab) and pull requests (GitHub) is essential. GitLab uses the term "merge request" while GitHub uses "pull request," and there are nuanced differences in how they handle code reviews, approvals, and merging changes into the main branch.
How can you cherry-pick a commit from another branch into your current branch in Git?
- git pick -c
- git cherry-pick
- git apply
- git merge
The correct option is git cherry-pick . This command allows you to apply the changes introduced by the specified commit to your current branch. Cherry-picking is useful for selectively bringing in specific changes.
A team is facing an issue where a feature that previously worked is now broken. How can git bisect be used to identify the problematic commit?
- Start the bisect using git bisect start and specify a good and bad commit. Git will automatically check out a commit between them. Run tests, and based on results, mark the commit as good or bad using git bisect good or git bisect bad.
- Manually check out a commit, run tests, and mark the commit as good or bad using git bisect mark.
- Use git bisect log to view the history and identify the problematic commit manually.
- Execute git bisect run
to automate the testing process and identify the faulty commit.
Option 1 correctly describes the process of using git bisect to systematically find the commit introducing the issue by marking commits as good or bad based on test results. Other options either involve manual methods or incorrect usage of git bisect.