What is the difference between a fast forward and recursive merge?
The merge commit continues to have two parents
. Note: There is nothing right or wrong of either one of the strategies but with fast forward merge you have a straight line of history and with the recursive merge, it is of multiple lines….
What is a fast forward merge?
Fast Forward Merge
A fast-forward merge can occur
when there is a linear path from the current branch tip to the target branch
. Instead of “actually” merging the branches, all Git has to do to integrate the histories is move (i.e., “fast forward”) the current branch tip up to the target branch tip.
What is a recursive merge?
Recursive is
the default merge strategy when pulling or merging one branch
. Additionally this can detect and handle merges involving renames, but currently cannot make use of detected copies. This is the default merge strategy when pulling or merging one branch.
What is the best Git merge strategy?
The most commonly used strategies are
Fast Forward Merge and Recursive Merge
. In this most commonly used merge strategy, history is just one straight line. When you create a branch, make some commits in that branch, the time you’re ready to merge, there is no new merge on the master.
Should I use fast forward merge?
When we work on development environment and merge our code to staging/production branch then
Git no fast forward
can be a better option. Usually when we work in development branch for a single feature we tend to have multiple commits. Tracking changes with multiple commits can be inconvenient later on.
How do you solve merge by recursive strategy?
You can use
git merge-base —
all to see the merge base candidate commits. Using -s resolve will pick one of them, while -s recursive will take all of them, merge them into a new commit, and use that new commit as the merge base.
What is git rebase vs merge?
Git rebase and merge
both integrate changes from one branch into another
. … Git rebase moves a feature branch into a master. Git merge adds a new commit, preserving the history.
Why fast forward merge is not possible?
If a fast-forward merge is not possible but
a conflict free rebase is possible
, a rebase button is offered. If the target branch is ahead of the source branch and a conflict free rebase is not possible, you need to rebase the source branch locally before you can do a fast-forward merge.
Are git fetch and git pull the same?
The git fetch command downloads commits, files, and refs from a remote repository into your local repo. … git pull is
the more aggressive alternative
; it will download the remote content for the active local branch and immediately execute git merge to create a merge commit for the new remote content.
What is git pull fast forward?
What’s a fast-forward? A fast-forward is
what Git does when you merge or rebase against a branch that is simply ahead the one you have checked-out
. Given the following branch setup: You’ve got both branches referencing the same commit. They’ve both got exactly the same history.
How does git decide to merge?
As Atropo states in his answer, Git has an internal merge system that is independent of difftool . So Git
decides when a change causes a conflict on its own
, not by using whatever external diff or merge tools you’re using (which probably use their own conflict detection and resolution strategies).
What is a git merge commit?
Unlike other commits, the merge commit is
a commit which has multiple (generally two) parents
. For instance, when a branch named feature is merged with master, a new commit is created on the branch master which has two parents, the previous head of master and the head of feature.
What are git branching strategies?
What is a branching strategy? A “branching strategy” refers to
the strategy a software development team employs when writing, merging, and shipping code in the context of a version control system
like Git. Software developers working as a team on the same codebase must share their changes with each other.
What is git merge no fast-forward?
The –no-ff flag prevents git merge from executing a “fast-forward” if
it detects that your current HEAD is an ancestor of the commit you’re trying to merge
. A fast-forward is when, instead of constructing a merge commit, git just moves your branch pointer to point at the incoming commit.
What is no fast-forward in git?
git merge –no-ff : The “no-fast-forward” merge option
preserves the branch history and creates a merge commit
. git merge : The “fast-forward” (“–ff”) merge option is the default merge option (when possible). … After rebasing, the branch will have a new parent commit, which is the same commit pointed to by master.
Can two different Sha refer to same commit?
Git stores all data in “objects.” Each object is named after the SHA-1 hash of its contents, and objects refer to each other by their SHA-1 hashes. If two distinct objects have the same hash, this is known as
a collision
.
