Switching branches with git switch - Step-by-Step Execution

Process Flow - Switching branches with git switch

Start in current branch

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Run 'git switch <branch>'

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Check if branch exists

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Switch to branch

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Update HEAD pointer

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Now on new branch

This flow shows how 'git switch' moves you from your current branch to another existing branch, or shows an error if the branch does not exist.

Execution Sample

Git

git switch feature
# Switches to branch named 'feature'

This command changes the current working branch to 'feature' if it exists.

Process Table

Step	Command	Branch Exists?	Action	Resulting Branch
1	git switch feature	Yes	Switch to 'feature'	feature
2	git switch bugfix	No	Error: branch not found	current branch unchanged

💡 Execution stops after switching branch or error if branch does not exist.

Status Tracker

Variable	Start	After Step 1	After Step 2
HEAD (current branch)	main	feature	main

Key Moments - 2 Insights

Why does 'git switch' give an error if the branch does not exist?

Because 'git switch' only moves to existing branches. The execution_table row 2 shows the error when trying to switch to 'bugfix' which does not exist.

Does 'git switch' create a new branch if it doesn't exist?

No, 'git switch' only switches to existing branches. To create and switch, you must use 'git switch -c <branch>'. This is why in the execution_table, step 2 fails.

Visual Quiz - 3 Questions

Look at the execution table, what is the current branch after step 1?

A feature

B main

C bugfix

D unknown

💡 Hint

Check the 'Resulting Branch' column in row 1 of the execution_table.

At which step does 'git switch' fail due to a missing branch?

A Step 1

B Step 2

C Neither step

D Both steps

💡 Hint

Look at the 'Branch Exists?' and 'Action' columns in the execution_table.

If you want to create and switch to a new branch in one command, what should you do?

A Use 'git checkout <branch>'

B Use 'git switch <branch>'

C Use 'git switch -c <branch>'

D Use 'git branch <branch>' only

💡 Hint

Refer to the key_moments section explaining creation with 'git switch -c'.

Concept Snapshot

git switch <branch>
- Switches to an existing branch named <branch>
- Fails with error if branch does not exist
- Use 'git switch -c <branch>' to create and switch
- Updates HEAD pointer to new branch
- Simple, safer alternative to 'git checkout' for switching branches

Full Transcript

The 'git switch' command changes your current working branch to another existing branch. When you run 'git switch <branch>', Git checks if the branch exists. If yes, it moves the HEAD pointer to that branch, making it the current branch. If the branch does not exist, Git shows an error and does not change the branch. To create a new branch and switch to it in one step, use 'git switch -c <branch>'. This command is a modern, clearer way to switch branches compared to the older 'git checkout'.