Android Studio Update Project: Merge vs Rebase vs Branch Default
Apologies if this seems redundant as I know there are fair amount of questions regarding Merge vs Rebase, but there doesn't seem to be any that throw in 'Branch Default' as well.
You are given a case where you have multiple people working on something (ie an Android app in Android Studio) concurrently. What is the best option to update project/pull if someone pushes to the master branch and you want to pull in the new master such that it doesn't overwrite the work you are still working on and have yet to commit and push to master? Android Studio lists 'Merge' 'Rebase' and 'Branch Default' when clicking 'Update Project'. From what it sounds like, I would want to do 'Rebase' (followed by 'Merge'?), but I'm not entirely sure.
Stashing
The key here is that you have uncommitted work that you want to save. Before trying to merge anything in, you should stash your changes to save your uncommitted changes and clean your working directory.
Run git stash to stash your changes. You should then be able to pull the changes without any issues.
After you have successfully pulled, you can do a git stash apply to re-apply the changes you had made prior to the pull.
Merging and rebasing
Stashing your changes only works if you only have uncommitted changes. If at some point you committed but didn't push you will need to either rebase or merge.
This StackOverflow post has some great information on the differences.
In general, merging is easier, but some believe that it "pollutes" the git history with merge commits.
Rebasing requires additional work, but since you don't have a merge commit it will essentially make the merge invisible.
Again, in your case you shouldn't need to merge or rebase. Simply stash, pull, then apply the stash and it should all be good.
According to the IntelliJ IDEA documnetatition:
Update Type
git fetch ; git merge git fetch ; git merge or git pull --no-rebase . git fetch ; git rebase git fetch ; git rebase or git pull --rebase . branch.<name> section of the .git/config configuration file. Clean working tree before update
In this area, specify the method to save your changes while cleaning your working tree before update. The changes will be restored after the update is completed. The available options are:
I couldn't find the answer to this question (ie the work-flow) in any of Google's documents... so here's my practical experience using Android Studio and Git completely from a UI.
(I vomit at the thought of switching between command line and IDE - it means the IDE is lacking!)
WARNING
The manual merge "Merge Revisions" UI is TERRIBLE . Once you try it, you'll see what I mean. Good luck trying to get "Synchronize Scrolling" to actually work. I sincerely hope this UI is addressed within the first few weeks of 2015.
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