Git Deep Dive: 02 - Revisiting the Basic Workflow
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Questions and Answers

What is the first command executed in the basic Git workflow to reflect changes made in a file?

  • git switch
  • git add (correct)
  • git move
  • git commit
  • What happens to the file immediately after executing the 'git commit' command?

  • A new commit is created in the repository. (correct)
  • The file is staged for the next commit.
  • The file is deleted from the repository.
  • The file is moved back to the working area.
  • After performing changes and executing 'git add', what does 'git status' indicate?

  • The file is staged and ready for commit. (correct)
  • The file is deleted.
  • The file is modified but not staged.
  • The working area and index have differences.
  • Which of the following best describes the flow of data in the Git workflow?

    <p>From the working area to the index and finally to the repository. (A)</p> Signup and view all the answers

    What does the command 'git diff' show after staging a file with 'git add'?

    <p>No differences between the working area and the index. (A)</p> Signup and view all the answers

    What does the command 'git switch' do in the context of Git commands provided?

    <p>It changes the current branch in the repository. (B)</p> Signup and view all the answers

    Which of the following is NOT a direct action performed by the 'git commit' command?

    <p>Moving the file to the working area. (B)</p> Signup and view all the answers

    What is the status of the repository after executing a successful 'git commit' command?

    <p>All areas (working, index, repository) are aligned. (A)</p> Signup and view all the answers

    What is the effect of executing a 'remove' command without arguments in Git?

    <p>It removes the file from both the index and working area. (D)</p> Signup and view all the answers

    What does the '--cached' option do when used with the 'remove' command?

    <p>It unstages a file but keeps it in the working area. (D)</p> Signup and view all the answers

    When renaming a file in Git, what happens to the original file?

    <p>The original file remains, but is marked as untracked. (A)</p> Signup and view all the answers

    How does Git determine that a renamed file retains the same content?

    <p>By comparing the content of the files in the working area and index. (A)</p> Signup and view all the answers

    What is the purpose of the 'git mv' command?

    <p>To rename and update the index in one command. (C)</p> Signup and view all the answers

    What happens when you commit changes in Git?

    <p>New objects are created in the repository. (A)</p> Signup and view all the answers

    What is the result of performing an 'add' command in Git?

    <p>The index is updated without affecting the repository. (C)</p> Signup and view all the answers

    What is a misconception about the remove command in Git?

    <p>It can remove files from the repository. (B)</p> Signup and view all the answers

    If you move a file and change its content simultaneously, how does Git typically respond?

    <p>It recognizes the move and similarity in file content. (C)</p> Signup and view all the answers

    How does the remove command differ from the add command?

    <p>Both commands change the index but remove changes the working area too. (A)</p> Signup and view all the answers

    What occurs to a file after it is added from the working area to the index?

    <p>It stays in the working area and its changes become staged. (A)</p> Signup and view all the answers

    After renaming a file but not adding it to the index, what will Git report in status?

    <p>Both files as untracked. (C)</p> Signup and view all the answers

    What does a clean status indicate in Git after operations?

    <p>All changes have been committed and tracked properly. (C)</p> Signup and view all the answers

    What does the switch command primarily do in relation to the repository?

    <p>It moves the HEAD reference and copies data from the repository to the working area. (A)</p> Signup and view all the answers

    Which command would you typically use to revert to a previous commit while retaining the current branch?

    <p>git checkout (A)</p> Signup and view all the answers

    If you want to remove a file from the index without deleting it from the working area, which command should you use?

    <p>git rm --cached (D)</p> Signup and view all the answers

    What happens when you use git add on a file that is already tracked?

    <p>It stages the file for commit in the index again. (D)</p> Signup and view all the answers

    What is the effect of the HEAD reference when switching branches using git switch?

    <p>It updates to point to the current commit of the new branch. (C)</p> Signup and view all the answers

    Why does using git rm without any options give a warning when removing an untracked file?

    <p>Because it might remove files that have not been committed. (C)</p> Signup and view all the answers

    What does the git status command indicate when a file is marked as untracked?

    <p>The file exists in the working area but is not in the index or repository. (D)</p> Signup and view all the answers

    Which command is used to move changes from the working area to the index without altering the repository?

    <p>git add (B)</p> Signup and view all the answers

    What happens to the files when you switch branches using git switch?

    <p>The files are updated to reflect the new current commit. (B)</p> Signup and view all the answers

    Which command would you use to copy a file from the index to the working area for editing?

    <p>git checkout (C)</p> Signup and view all the answers

    What result does the git commit command achieve?

    <p>It submits staged changes to the repository. (B)</p> Signup and view all the answers

    How does git handle a situation where you attempt to remove a file that is not in the repository?

    <p>It gives a warning about potential data loss. (D)</p> Signup and view all the answers

    What does the term 'clean status' refer to in Git?

    <p>The working area, index, and repository are all synchronized. (C)</p> Signup and view all the answers

    Which command allows you to view differences between branches in Git?

    <p>git diff (B)</p> Signup and view all the answers

    Flashcards

    Working Area

    The 'working area' is the directory on your computer where you edit files directly.

    Index

    The 'index' is a staging area where you temporarily store changes you plan to commit.

    Repository

    The 'repository' is the central location where all your project's revisions and history are stored.

    What does 'git add' do?

    The git add command copies changes from the working area to the index.

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    What does 'git commit' do?

    The git commit command permanently saves changes from the index to the repository.

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    Git Workflow Data Flow

    The sequence of changes in the repository can be viewed as moving data from left to right: working area -> index -> repository.

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    Clean Status

    A clean status in Git means all changes are committed, and there are no pending changes to be saved.

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    What does 'git diff' do?

    The git diff command compares files in the working area or index to identify changes.

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    git add

    The command used to move changes from the working area to the index.

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    git commit

    The command used to permanently save changes from the index to the repository.

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    git switch

    The command used to switch between branches in the repository.

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    git checkout

    The command used to move to a specific (possibly unbranched) commit.

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    Git Data Flow

    The process of moving data from working area to the index to the repository is a unidirectional flow.

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    git diff

    The command used to view differences between files.

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    Unstaging

    The process of removing a file from the index.

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    git rm

    The command used to remove files from both the working area and the index.

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    Untracked file

    The file is in the working area but not in the index or repository.

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    New file

    The file is in the index and working area, but not in the repository, signifying a new addition.

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    Removing Uncommitted Changes

    A warning message displayed by Git when a file is removed from the working area and index.

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    Changing the Repository

    The process of changing the HEAD pointer in the repository.

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    Moving data from the repository

    The process of copying data from the repository to the working area and index.

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    Unstaging a file

    The process of removing a file from the index while keeping it in the working area.

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    Git "remove" (basic)

    The "remove" command in Git, without any arguments, affects both the working area and the index, deleting the file from both. This changes both the local version and the staging area.

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    Git "remove ‑‑cached"

    Use the "‑‑cached" flag with "remove" to only remove the file from the staging area (index). This leaves the file in the working area.

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    What does "git add" do?

    The "add" command in Git only modifies the index. It doesn't actually affect the repository. If you want to permanently save changes, you need to "commit" after "adding" to the index.

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    Why is "remove" the opposite of "add"?

    The "remove" command in Git, without the "‑‑cached" flag, is the opposite of "add" because it affects both the index and the working area. In contrast, "add" only affects the index.

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    Why are "remove ‑‑cached" and "add" opposites?

    The "remove" command in Git, with the "‑‑cached" flag, is the opposite of "add" because it only affects the index. The "add" command also only affects the index. They are opposites when considering their effect on the index.

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    How does Git handle renaming and moving files?

    Git automatically recognizes that you've renamed or moved a file even if you change some of its content. This saves you from having to explicitly tell Git about the changes.

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    Renaming vs. Moving a file in Git

    Renaming a file in Git essentially means moving it to a new location (within the same directory) with a different name.

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    What is the "Git mv" command?

    "Git mv" is a convenience command that combines the steps of renaming/moving a file in the working area and updating the index into a single action.

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    How does "git mv" work compared to renaming manually?

    The "git mv" command is a convenience command. It does the same thing as renaming/moving in your working area and then adding it to the index, only it does it in one step.

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    Is "git mv" really necessary?

    In Git, you don't necessarily need to use the "mv" command for renaming/moving files. Git can detect these changes automatically when you "commit", making the command mostly optional.

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    Can Git handle renaming/moving with content changes?

    Git is smart enough to recognize when a file has been renamed or moved, even if the content has also changed. It looks for similar content to determine if it's the same file.

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    What happens if you make significant content changes while renaming?

    If you change a file significantly, Git may not recognize it as the same file even if you rename it. This is a rare case where manual action to explain the changes might be needed.

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    What does "git checkout" do?

    The "checkout" command in Git copies data from the repository to both the working area and the index because it updates the local version to match the repository.

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    Git "checkout" vs "switch"

    The "switch" command in Git accomplishes the same thing as the "checkout" command. Both copy data from the repository to the working area and the index, but "switch" is a more focused command for switching between branches.

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    What does "git commit" do?

    The "commit" command in Git copies data from the index (staging area) to the repository, permanently saving the changes in your project's history.

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    Study Notes

    Git Workflow Commands

    • git add: Copies data from the working area to the index. Does not change the repository. Overwrites previous versions of the file in the index.

    • git commit: Copies data from the index to the repository. Creates a new commit, updates the branch, and modifies the repository beyond just copying the file.

    Moving Data to the Left

    • git switch (or git checkout): Moves data from the repository to the working area and index . Changes the HEAD reference to a new commit, effectively changing the current commit. To move to another commit on a branch, use git switch. Does modify the repository by updating HEAD.

    Removing Files

    • git rm: Deletes files. Without --cached, git rm removes a file from both the working directory and the index. If the file isn't in the repository, Git warns that changes will be lost, offering a --force option for immediate deletion or --cached to only remove from the index.

      • --cached is critical; it removes a file ONLY from the index, leaving it in the working directory.

    Renaming Files

    • git mv: Renames files in the working area and updates the index. Git automatically tracks renames and moves if the file content is unchanged. This is a convenience command, and a manual approach (add, then commit) is not incorrect.

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    Description

    Test your knowledge of essential git commands, including git add, git commit, and git switch. This quiz covers the functionality and use cases of each command in the Git version control system. Improve your understanding of how to manage files and branches effectively with Git.

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