#Merge branch into master git how to

Another problem with this approach is that you are hiding what you really did. Similar to #2, this will cause you, and any collaborators, a great deal of stress. Note: you should never re-write history once you’ve shared a repository. Once completed, your history view should look something like Figure 6. Now you can merge (without conflicts) the new_idea branch. This will effectively remove Commits D and E from your history. If you have your master branch checked out, you can reset the branch to point to Commit C (Add Security). Since you tried two different ways to address the same bugs, you can now delete the unwanted attempts. Re-write historyĪ similar approach to #2, you can forcefully remove commits. This should only be used on private repositories, before you push. If anybody else has worked on the master branch, you will cause them (and likely you) a lot of headaches. Note: you should never attempt to reset branches like this if you’ve shared your repository. Once completed, your history view should look something like Figure 5. In this case, it’s important that you rebase your new_idea branch off commit C first. However, you will not only lose the UI and Core fixes, but you will also lose the new security feature that you added (commit C, D and E). You have essentially tried two different ways to implement the same functionality, and when finished, you choose the second approach. If you checkout the master branch and then issue a hard reset to the new_idea branch (in the history view, right click on the new_idea branch and selected Reset->Hard), the master branch will now point to the tip of the new_idea branch. Since git is a directed acyclic graph of commits with pointers (or references) to the tip of the branches, you can manipulate this graph. For example, if you only want the alternate UI fix (commit G), but not the alternate core fix (commit F), you can cherry pick commit G. Once you have successfully resolved the merge conflicts, added the affected file to the git index and committed, your history view should look something like Figure 4. The more seasoned git users will probably suggested that you rebase your new_idea branch on top of the commit C first (I didn’t do this). Once you have resolved these conflicts, you must explicitly add the merged files to the git index ( Team->Add) and then commit your changes. Since the same functionality was implemented in two different ways, you are almost guaranteed to have merge conflicts. You checkout the master branch and merge the new_idea branch. Merge Toolįor those of you new to git, the most intuitive way to merge these branches is to use the merge tool.

#Merge branch into master git how to

(If you have other ideas on how to merge these branches, please leave a comment). Now, assuming you have chosen alternate approach to the Core and UI bugs, there are at least four (4) different ways to merge. The EGit history view would show this repository as follows: The security feature does not exist in this branch. In the new_idea branch, an alternate approach to the UI and Core bugs were tried. Also, security was added to the application. In this article I will assume we have the following simple git repository:Ī UI and Core bug have each been fixed in the master branch. In this article I will describe a few different ways you can merge two branches using Eclipse Git (EGit). However, once you start to work with others and multiple streams / branches start to emerge, you need an SCM system that can handle a variety of different merge cases.

It’s always a great idea to use a Source Control Management (SCM) system – even when you are working on personal projects, without any collaborators.