Git add vs push vs commit

Question

What is the difference between git add  push and commit   Just a little confused coming from SVN  where  update  will  add  stuff  and commit does a  push  and will  add  as well  There are all different functions within git  Hoping for some explanation from your experience

User · Answer

git add adds files to the Git index  which is a staging area for objects prepared to be commited  git commit commits the files in the index to the repository  git commit -a is a shortcut to add all the modified tracked files to the index first  git push sends all the pending changes to the remote repository to which your branch is mapped  eg  on GitHub     In order to understand Git you would need to invest more effort than just glancing over the documentation  but it s definitely worth it  Just don t try to map Git commands directly to Subversion  as most of them don t have a direct counterpart

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git add adds your modified files to the queue to be committed later  Files are not committed  git commit commits the files that have been added and creates a new revision with a log    If you do not add any files  git will not commit anything  You can combine both actions with git commit -a  git push pushes your changes to the remote repository    This figure from this git cheat sheet gives a good idea of the work flow  git add isn t on the figure because the suggested way to commit is the combined git commit -a  but you can mentally add a git add to the change block to understand the flow  Lastly  the reason why push is a separate command is because of git s philosophy  git is a distributed versioning system  and your local working directory is your repository  All changes you commit are instantly reflected and recorded  push is only used to update the remote repo  which you might share with others  when you re done with whatever it is that you re working on  This is a neat way to work and save changes locally  without network overhead  and update it only when you want to  instead of at every commit  This indirectly results in easier commits branching etc  why not  right  what does it cost you   which leads to more save points  without messing with the repository

User · Answer

Very nice pdf about many GIT secrets   Add is same as svn s add  how ever sometimes it is used to mark file resolved    Commit also is same as svn s   but it commit change into your local repository

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I was confused about what  add  really does  I just read a very enlightening paragraph from the book Git Pro that I d like to add here  because it clarifies things     It turns out that Git stages a file exactly as it is when you run the git add command  If you commit now  the version of benchmarks rb as it was when you last ran the git add command is how it will go into the commit  not the version of the file as it looks in your working directory when you run git commit  If you modify a file after you run git add  you have to run git add again to stage the latest version of the file      Excerpt From  Chacon  Scott     Pro Git     Springer  2009-08-19T00 00 00 00 00  iBooks   This material may be protected by copyright

User · Answer

add -in git is used to tell git which files we want to commit  it puts files to the staging area  commit- in git is used to save files on to local machine so that if we make any changes or even delete the files we can still recover our committed files   push - if we commit our files on the local machine they are still prone to be lost if our local machine gets lost  gets damaged  etc  to keep our files safe or to share our files usually we want to keep our files on a remote repository like Github  To save on remote repositories we use push  example  Staging a file named index html git add index html  Committing a file that is staged git commit -m  name of your commit   Pushing a file to Github git push origin master

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I find this image very meaningful       from   Oliver Steele -My Git Workflow  2008

User · Answer

git add selects changes  git commit records changes LOCALLY  git push shares changes

User · Answer

add tells git to start tracking a file   commit commits your current changes on your local repository  push pushes you local repo upstream

[git] Git: add vs push vs commit

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