Is it possible to Fast Forward a merge?
You need to worry about creating a true merge and not fast-forward when merging a very first branch (assuming that you don't put single-commit changes directly on 'master'); all other later merges are of course in non fast-forward situation. HTH Share Follow edited Aug 25, 2017 at 16:19
What is a merge commit in a standard merge?
A standard merge will take each commit in the branch being merged and add them to the history of the base branch based on the timestamp of when they were created. It will also create a merge commit, a special type of “empty” commit that indicates when the merge occurred
How to prevent Git from doing Fast-Forward when we merge?
We can prevent Git from doing fast-forward when we merge branch es with --no-ff (“no fast-forward”) flag. Let’s recreate the same situation in the repository, this time with a branch called next-feature. When we now do a merge to master, we will tell Git explicitly not to do it in fast-forward mode. This time our Git history looks different.
Why can't I See my merged commits in the timeline?
By navigating back before the merge commit, we won't get any of the individual merged commits in our history. It's only after that merge commit that they are included in the timeline.
Does Fast forward merge create a new commit?
Note that fast-forward updates do not create a merge commit and therefore there is no way to stop those merges with --no-commit. Thus, if you want to ensure your branch is not changed or updated by the merge command, use --no-ff with --no-commit.
Does git merge always create commit?
In these scenarios, git merge takes two commit pointers, usually the branch tips, and will find a common base commit between them. Once Git finds a common base commit it will create a new "merge commit" that combines the changes of each queued merge commit sequence.
Does a merge count as a commit?
The merge commit is considered a single commit (I'd expect 13 commits now, unless you're not counting merge commits or one of the 5 and 7 is actually the same commit), but it brings all of the histories it merges together.
Do I need to commit after merge?
Merge is just like any other DML and will require a commit or rollback as any other DML statement at the end of the transaction.
What does git merge fast forward do?
Fast forward merge can be performed when there is a direct linear path from the source branch to the target branch. In fast-forward merge, git simply moves the source branch pointer to the target branch pointer without creating an extra merge commit.
What happens to commits after merge?
In after merge: In the after merge diagram, we merged both the master and hotfix branch and git created a new merge commit block which having a hash key 7999 . The parent of 7999 commit is 4210 and 836f hash key. Once you merge the hotfix branch then you can delete it to make your master branch looks clean.
Does merge squash create a merge commit?
Squash merging is a merge option that allows you to condense the Git history of topic branches when you complete a pull request. Instead of each commit on the topic branch being added to the history of the default branch, a squash merge adds all the file changes to a single new commit on the default branch.
What is create merge commit?
Merges a branch into the current branch, creating a merge commit. Use git checkout
What is difference between merge and squash commit?
The commit looks like a normal commit on feature . It squashes the commits on main (line 20 and line 14) into one commit and does not have a commit path from main . git merge --squash alters commit history but produces cleaner history.
Should I commit before merge?
Because Git is distributed, you can maintain multiple copies of a repository. This means you can have one version of a repository on one computer, another version on another computer, and one central version to which every copy refers.
Does merge require commit in SQL?
A merge (or any other DML statement) doesn't commit. You either need to explicitly commit after it completes; or be using a client/driver set to autocommit, which will still happen after the merge completes.
Does merge auto commit Oracle?
It's just a DML statement, like insert/update/delete. Does not auto commit.
Why is fast forwarding the default?
The fast-forward is the default because: short-lived branches are very easy to create and use in Git. short-lived branches often isolate many commits that can be reorganized freely within that branch. those commits are actually part of the main branch: once reorganized, the main branch is fast-forwarded to include them.
Does fast forward merge make sense?
Fast-forward merging makes sense for short-lived branches, but in a more complex history, non-fast-forward merging may make the history easier to understand, and make it easier to revert a group of commits.
Usual work on branches
In a standard, multi-person work on a single project it’s normal every task is done on a separate branch. Usually, teams and companies follow some version of the Git flow. It:
How Git simplifies history
Now it’s time to merge our feature branch into master. No other person did anything on the master, there are no new commits created after we switched to awesome-feature. It’s as simple as it may be.
Preventing Git fast-forward merges
We can prevent Git from doing fast-forward when we merge branch es with --no-ff (“no fast-forward”) flag. Let’s recreate the same situation in the repository, this time with a branch called next-feature.
Fast-forward on GitHub and GitLab
Worth noticing is that when we merge branches from pull requests on GitHub or GitLab, they are also done in no fast-forward mode. This ensures we have true repository history preserved.
Project-wide merge policy
To have Git history truthful and consistent it requires that all team members are following the same policy and use the same configuration. Various GUI for Git handle this differently, but usually can be configured to follow the same strategy as we discussed.
Merge
A standard merge will take each commit in the branch being merged and add them to the history of the base branch based on the timestamp of when they were created.
Fast Forward Merge
If we change our example so no new commits were made to the base branch since our branch was created, Git can do something called a “Fast Forward Merge”. This is the same as a Merge but does not create a merge commit.
Squash & Merge
Squash takes all the commits in the branch (A,B,C) and melds them into 1 commit. That commit is then added to the history, but none of the commits that made up the branch are preserved
Rebase & Merge
A rebase and merge will take where the branch was created and move that point to the last commit into the base branch, then reapply the commits on top of those changes.
What Happens When You Merge
How to Fast-Forward Merge with Git
- You can fast-forward merge Git without explicitly telling it to do so by ensuring no new changes have been performed on your main branchsince your feature branch was first generated. Of course, this is not always a possibility with fast-moving projects being worked on by large, distributed teams. Instead, you can take advantage of rebasing operatio...
Make Merging Simpler with Mergify
- Mergify can help your team tackle the complexities of merging so they can spend more time coding. From queueing up merge operations to assigning reviewers, labeling, and more, Mergify helps make sense of your team's workflow by automating the redundant bits. Automation with Mergify reduces the potential for errors to eat away at your team's productivity and profitability. …