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Tagging

From: Fundamentals of Software Version Control

Video: Tagging

Tagging in Git is really easy. Tags are called tags. To create a tag, we'll say git tag, add the tag, v1, and then we'll add a message to indicate what it is we want, like Label version 1. Now to see the tags in your repository, it's as simple as saying git tag. To see what's in a specific tag, you can just type git show and the tag, and here we can see that the tag is shown, and it specifically shows up here at the top that I made the tag and when I did and exactly what is in there and what the various differences are between that tag and what's in my working set.

Tagging

Tagging in Git is really easy. Tags are called tags. To create a tag, we'll say git tag, add the tag, v1, and then we'll add a message to indicate what it is we want, like Label version 1. Now to see the tags in your repository, it's as simple as saying git tag. To see what's in a specific tag, you can just type git show and the tag, and here we can see that the tag is shown, and it specifically shows up here at the top that I made the tag and when I did and exactly what is in there and what the various differences are between that tag and what's in my working set.

Now, if I want to go back to that tag at a later date, for example, in order to fix the bug, I can say, git checkout v1, and if I want to get back to the HEAD, I can say git checkout HEAD. Because branching is very easy in Git, you want to do a checkout to your tag and then do a branch there to allow you to make sure your changes are independent of whatever changes you were actually doing at the HEAD. So for example, if you had to come back to version 1 three months from now, you'll do a checkout v1, you'll branch at that point, make your changes there, and you may merge them back into the main branch, or you may keep that separate as your version 1 branch from now on.

One last thing. If you want your tags to be copied to a remote repository, you have to use the command git push --tags, like this, and if you want to pull them from a remote repository you use git pull --tags, with the appropriate additional arguments here that indicate which repository you're pulling from or pushing from. So tags are not by default automatically copied on a push or pull. All right, that's tags in Git. It's really, really simple. It allows you to just back up to wherever you were at that particular point and carry on.

Again, I highly recommend if you're going to use tags, when you do a git checkout at a particular tag, do a branch at that point. As you'll see in the next movie, branching is really easy so that you make sure that you carry on with your version 1 independently of the changes you might have already made up to that point, say when you're working on version 1.1 or version 2.

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This video is part of

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Fundamentals of Software Version Control

49 video lessons · 12868 viewers

Michael Lehman
Author

 
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  1. 2m 12s
    1. Welcome
      56s
    2. What you should know before taking this course
      23s
    3. Using the exercise files
      53s
  2. 25m 8s
    1. Overview of software version control
      2m 51s
    2. Understanding version control concepts
      5m 14s
    3. Demo one: Getting started
      11m 1s
    4. Demo two: Handling the "oops"
      6m 2s
  3. 11m 3s
    1. The history of version control
      3m 44s
    2. Terminology
      4m 27s
    3. Exploring centralized vs. distributed systems
      2m 52s
  4. 28m 42s
    1. Getting files in and out of a repository
      4m 38s
    2. Saving changes and tracking history
      2m 47s
    3. Reverting to a prior version
      1m 42s
    4. Creating tags and labels
      1m 5s
    5. Branching and merging
      4m 10s
    6. Exploring workflow integration and continuous builds
      2m 46s
    7. Using graphical user interface (GUI) tools
      2m 39s
    8. Integrating a version control system with an integrated development environment (IDE)
      2m 50s
    9. Examining shell integration
      3m 26s
    10. Looking at forward and reverse integration
      2m 39s
  5. 25m 59s
    1. Installation and setup
      3m 31s
    2. Creating a repository and a project
      5m 10s
    3. Working with check-in, checkout, and revert
      6m 12s
    4. Tagging
      1m 34s
    5. Branching and merging
      5m 32s
    6. Working with GUI clients and IDE integration
      4m 0s
  6. 16m 13s
    1. Installation and setup
      55s
    2. Working with check-in, checkout, and revert
      9m 34s
    3. Tagging
      1m 7s
    4. Branching and merging
      4m 37s
  7. 26m 41s
    1. Installation and setup
      3m 47s
    2. Creating a repository and a project
      6m 15s
    3. Working with check-in, checkout, and revert
      8m 31s
    4. Tracking history and tagging
      2m 15s
    5. Branching and merging
      5m 53s
  8. 19m 25s
    1. Installation and setup
      3m 1s
    2. Creating a repository and a project
      1m 6s
    3. Working with check-in, checkout, and revert
      6m 39s
    4. Tagging
      2m 13s
    5. Branching and merging
      3m 44s
    6. Working with GUI clients and IDE integration
      2m 42s
  9. 16m 54s
    1. Installation and setup
      1m 48s
    2. Creating a repository and a project
      59s
    3. Working with check-in, checkout, revert, and tracking history
      6m 9s
    4. Tagging
      1m 50s
    5. Branching and merging
      4m 29s
    6. Exploring GUI and shell integration
      1m 39s
  10. 3m 38s
    1. Selecting a software version control that is right for you
      2m 30s
    2. Next steps
      1m 8s

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