74 lines
1.6 KiB
Markdown
74 lines
1.6 KiB
Markdown
---
|
|
comments: false
|
|
---
|
|
|
|
# Merge conflicts
|
|
|
|
----------
|
|
|
|
- Happen often
|
|
- Learning to fix conflicts is hard
|
|
- Practice makes perfect
|
|
- Force push after fixing conflicts. Be careful!
|
|
|
|
----------
|
|
|
|
## Merge conflicts
|
|
|
|
1. Checkout a new branch and edit `conflicts.rb`. Add 'Line4' and 'Line5'.
|
|
1. Commit and push.
|
|
1. Checkout master and edit `conflicts.rb`. Add 'Line6' and 'Line7' below 'Line3'.
|
|
1. Commit and push to master.
|
|
1. Create a merge request and watch it fail.
|
|
1. Rebase our new branch with master.
|
|
1. Fix conflicts on the `conflicts.rb` file.
|
|
1. Stage the file and continue rebasing.
|
|
1. Force push the changes.
|
|
1. Finally continue with the Merge Request.
|
|
|
|
----------
|
|
|
|
## Commands
|
|
|
|
```
|
|
git checkout -b conflicts_branch
|
|
|
|
# vi conflicts.rb
|
|
# Add 'Line4' and 'Line5'
|
|
|
|
git commit -am "add line4 and line5"
|
|
git push origin conflicts_branch
|
|
|
|
git checkout master
|
|
|
|
# vi conflicts.rb
|
|
# Add 'Line6' and 'Line7'
|
|
git commit -am "add line6 and line7"
|
|
git push origin master
|
|
```
|
|
|
|
Create a merge request on the GitLab web UI. You'll see a conflict warning.
|
|
|
|
```
|
|
git checkout conflicts_branch
|
|
git fetch
|
|
git rebase master
|
|
|
|
# Fix conflicts by editing the files.
|
|
|
|
git add conflicts.rb
|
|
# No need to commit this file
|
|
|
|
git rebase --continue
|
|
|
|
# Remember that we have rewritten our commit history so we
|
|
# need to force push so that our remote branch is restructured
|
|
git push origin conflicts_branch -f
|
|
```
|
|
----------
|
|
|
|
## Note
|
|
* When to use 'git merge' and when to use 'git rebase'
|
|
* Rebase when updating your branch with master
|
|
* Merge when bringing changes from feature to master
|
|
* Reference: https://www.atlassian.com/git/tutorials/merging-vs-rebasing/
|