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Git Essential Training

Retrieving stashed changes


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Git Essential Training

with Kevin Skoglund

Video: Retrieving stashed changes

We've been taking a look at how we can use git stash to save our changes temporarily. We saw we could put changes in there, and we saw how we could list them, and we saw how we could use show in order to inspect them. Now what we want to do is be able to retrieve those stash changes out of there, essentially do the opposite of git stash save. If we put them in the drawer before, now we want to get them back out of the drawer, and when we do that it's going to bring those changes back into our working directory, whatever that working directory is, whichever branch we're on. And now just as a refresher, remember when I did the stash before I was on the shorten_title branch, now I'm on the master branch.
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  1. 2m 46s
    1. Introduction
      1m 7s
    2. How to use the exercise files
      1m 39s
  2. 20m 24s
    1. Understanding version control
      4m 48s
    2. The history of Git
      7m 58s
    3. About distributed version control
      5m 4s
    4. Who should use Git?
      2m 34s
  3. 26m 12s
    1. Installing Git on a Mac
      3m 44s
    2. Installing Git on Windows
      5m 37s
    3. Installing Git on Linux
      1m 30s
    4. Configuring Git
      7m 29s
    5. Exploring Git auto-completion
      5m 35s
    6. Using Git help
      2m 17s
  4. 15m 49s
    1. Initializing a repository
      1m 58s
    2. Understanding where Git files are stored
      2m 34s
    3. Performing your first commit
      2m 4s
    4. Writing commit messages
      5m 22s
    5. Viewing the commit log
      3m 51s
  5. 17m 44s
    1. Exploring the three-trees architecture
      3m 57s
    2. The Git workflow
      3m 15s
    3. Using hash values (SHA-1)
      4m 7s
    4. Working with the HEAD pointer
      6m 25s
  6. 25m 52s
    1. Adding files
      5m 59s
    2. Editing files
      3m 56s
    3. Viewing changes with diff
      3m 35s
    4. Viewing only staged changes
      2m 28s
    5. Deleting files
      5m 29s
    6. Moving and renaming files
      4m 25s
  7. 19m 18s
    1. Introducing the Explore California web site
      2m 2s
    2. Initializing Git
      3m 48s
    3. Editing the support phone number
      6m 20s
    4. Editing the backpack file name and links
      7m 8s
  8. 38m 45s
    1. Undoing working directory changes
      3m 49s
    2. Unstaging files
      2m 37s
    3. Amending commits
      4m 50s
    4. Retrieving old versions
      4m 7s
    5. Reverting a commit
      3m 12s
    6. Using reset to undo commits
      3m 44s
    7. Demonstrating a soft reset
      4m 8s
    8. Demonstrating a mixed reset
      4m 7s
    9. Demonstrating a hard reset
      5m 8s
    10. Removing untracked files
      3m 3s
  9. 27m 22s
    1. Using .gitignore files
      8m 23s
    2. Understanding what to ignore
      4m 47s
    3. Ignoring files globally
      4m 49s
    4. Ignoring tracked files
      5m 26s
    5. Tracking empty directories
      3m 57s
  10. 26m 51s
    1. Referencing commits
      4m 52s
    2. Exploring tree listings
      3m 46s
    3. Getting more from the commit log
      7m 38s
    4. Viewing commits
      4m 4s
    5. Comparing commits
      6m 31s
  11. 39m 35s
    1. Branching overview
      4m 56s
    2. Viewing and creating branches
      2m 57s
    3. Switching branches
      2m 58s
    4. Creating and switching branches
      4m 53s
    5. Switching branches with uncommitted changes
      3m 26s
    6. Comparing branches
      4m 28s
    7. Renaming branches
      2m 28s
    8. Deleting branches
      4m 18s
    9. Configuring the command prompt to show the branch
      9m 11s
  12. 28m 32s
    1. Merging code
      3m 11s
    2. Using fast-forward merge vs. true merge
      6m 49s
    3. Merging conflicts
      7m 26s
    4. Resolving merge conflicts
      7m 5s
    5. Exploring strategies to reduce merge conflicts
      4m 1s
  13. 14m 34s
    1. Saving changes in the stash
      4m 5s
    2. Viewing stashed changes
      2m 39s
    3. Retrieving stashed changes
      4m 24s
    4. Deleting stashed changes
      3m 26s
  14. 1h 5m
    1. Using local and remote repositories
      6m 38s
    2. Setting up a GitHub account
      5m 39s
    3. Adding a remote repository
      4m 0s
    4. Creating a remote branch
      4m 3s
    5. Cloning a remote repository
      4m 26s
    6. Tracking remote branches
      4m 5s
    7. Pushing changes to a remote repository
      5m 8s
    8. Fetching changes from a remote repository
      5m 47s
    9. Merging in fetched changes
      4m 50s
    10. Checking out remote branches
      3m 22s
    11. Pushing to an updated remote branch
      2m 6s
    12. Deleting a remote branch
      3m 8s
    13. Enabling collaboration
      3m 40s
    14. A collaboration workflow
      8m 43s
  15. 16m 23s
    1. Setting up aliases for common commands
      5m 14s
    2. Using SSH keys for remote login
      2m 56s
    3. Exploring integrated development environments
      1m 4s
    4. Exploring graphical user interfaces
      4m 32s
    5. Understanding Git hosting
      2m 37s
  16. 55s
    1. Goodbye
      55s

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Git Essential Training
6h 26m Beginner Aug 24, 2012

Viewers: in countries Watching now:

The course shows how to use Git, the popular open-source version control software, to manage changes to source code and text files. Using a step-by-step approach, author Kevin Skoglund presents the commands that enable efficient code management and reveals the fundamental concepts behind version control systems and the Git architecture. Discover how to track changes to files in a repository, review previous edits, and compare versions of a file; create branches to test new ideas without altering the main project; and merge those changes into the project if they work out. The course begins by demonstrating version control in a single-user, standalone context, before exploring how remote repositories allow users to collaborate on projects effectively.

Topics include:
  • Exploring the history of version control
  • Installing Git on Mac, Windows, and Linux
  • Initializing a repository
  • Writing useful commit messages
  • Understanding the Git three-tree architecture
  • Tracking when files are added, edited, deleted, or moved
  • Viewing change sets and comparing versions
  • Undoing changes and rolling back to previous versions
  • Ignoring changes to select files
  • Creating and working with code branches
  • Merging branches and resolving merge conflicts
  • Stashing changes for later
  • Working with hosted repositories and remote branches
  • Developing an effective collaboration workflow
Subject:
Developer
Software:
Git GitHub
Author:
Kevin Skoglund

Retrieving stashed changes

We've been taking a look at how we can use git stash to save our changes temporarily. We saw we could put changes in there, and we saw how we could list them, and we saw how we could use show in order to inspect them. Now what we want to do is be able to retrieve those stash changes out of there, essentially do the opposite of git stash save. If we put them in the drawer before, now we want to get them back out of the drawer, and when we do that it's going to bring those changes back into our working directory, whatever that working directory is, whichever branch we're on. And now just as a refresher, remember when I did the stash before I was on the shorten_title branch, now I'm on the master branch.

Git doesn't care. For all it knows this is absolutely what you intended, which is stash the changes, switch branches and then bring them out again. So it doesn't matter which branch you're on, it's going to try to bring them into your working directory and apply those changes. Like with merges, there's the possibility that there may be conflicts that those changes don't apply cleanly, and in that case it works like merge does. It does its best to try and figure out how to merge the changes, but if not, then there will be conflicts, and it'll be up to you to resolve those conflicts.

Now there are two commands that we can use to pull items out of the stash. The first is going to be git stash pop and the other one is git stash apply, both of them will pull what's in the stash out, and put it in the working directory. The difference is that stash pop also removes it from the stash as well. Git stash apply leaves a copy there, so pop is going to pop it out so that it's no longer in there at all.

We'd just popped it out of the drawer and back into our working directory. It is exactly the opposite of git stash save. Git stash apply pulls it from the stash into the working directory but leaves a copy in the stash. The idea here is that it might be some change that we want to apply to where we are now, then we might want to switch to a different branch and apply it there, switch to another branch and apply it there as well. So we want to keep it in the stash as we move between each of those branches. Or it might be something that we want to apply then make a few more commits and then apply it again, and so on.

Most of the time, pop is what you're going to want to use, and that's what we're going to use here. After pop, I need to specify which stash item I want it to pull out. If we don't say then by default, it's going to pull the first one, which is this one. I'll just go ahead and write that in there. So if we don't say, it will pull the same thing. It'd be exactly the same as if we did stash @ sign, curly braces around a zero. If we had three of them, and we wanted to pop up the third one, well then we'd do git stash and then 2, 2 because the third one is actually number 2 because they start numbering at 0; 0, 1 and 2.

But in this case, I want to pop out that first one. So I'll pop it out, auto-merging mission.html, changes not staged for commit, that means it's in my working directory, and it dropped the stash right here. So now if we say git stash list, you'll see that it's not in there anymore. And if we go and look at that file, mission, you'll see that it has the Our Mission in it, which is the change that we made. Now we can re-stash this change if we want.

If we say, oops, wait! I didn't want to be on the mission branch, we can say git stash save, and then we can store "change to mission page title." Now it's saved again, git checkout, and we'll check out our shorten_title branch, okay. Git status, nothing in there, git stash, and this time just for the experience of it, let's do apply, and we won't specify which one, that will pull the top one out of there.

Just take a list just so you see it, there it is. And let's this time do apply, now it still does the auto-merge but this time when we look at our stash, you can see that it's still there. It did not take it out of there. For now, you can just leave the changes we made to mission.html in your working directory. We're not going to commit it or worry about right now. What we want to focus on next is how we can delete items that are in the stash. In particular, I want to see how we can delete this item that we left in there.

Find answers to the most frequently asked questions about Git Essential Training.


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Q: In the Chapter 10 movie "Configuring the command prompt to show the branch," when I type the function "__git_ps1," I do not get the expected result.
A: The function "__git_ps1" was recently moved to a new file, .git-prompt.sh, as described here: https://github.com/git/git/commit/af31a456b4cd38f2630ed8e556e23954f806a3cc.

We will update the video. In the meantime, you may do the same steps you do for .git-completion.bash, but a second time using ".git-prompt.sh" as shown here: https://github.com/git/git/blob/master/contrib/completion/git-prompt.sh.
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