Eclipse pull project to develop on another machine - eclipse

I have a private repository on github.com and I want to pull it down to another development machine so that I can work with it in Eclipse but I am not sure exactly how to do it.
Do I have to create a local repository first or would that be created when the repository is pulled?

If you use git with eclipse, I assume you use eGit.
If you do, you can simply open File -> Import... -> Git -> Projects from Git -> Clone URI and from there everything should be clear to you. If it is not, just ask again and I will elaborate.
It will create a local repository for you if you chose so (later in the dialog you can chose something like import exisiting projects which is what you want if you already pushed your project to github once).

First, let's get eclipse out of the way. It has nothing to do with pulling/pushing to a remote repository.
The primary purpose of creating a remote repository is code collaboration. You can work on your local and then push to it. Others can pull from the remote and see your changes.
The primary way code collaboration is done in github is using the same model. To create a local branch out of a remote repository, you need to clone the repository. Cloning the repository would create a local master branch (the default branch) that will track the changes you make to your local repository. The other branch to note is the origin/master which tracks the changes you make to the remote repo.
When you want to make changes to the remote, you would need to perform three main steps:
Clone the existing repository: git clone https://github.com/johndoe/foo.git: this will create a local repository with the default master branch. You will work in this branch and when you have made the changes...
Commit the changes: git commit -m "this is the comment to identify my commit later"
Push it to the remote: git push origin master: origin refers to the remote repository; when you have cloned from the remote it is automatically called origin
So basically, you just need to clone the remote repository if you already have the remote on github. You don't need to create it separately.
You can import the project you have cloned into eclipse and work with it accordingly, then commit and push the changes to the remote.
Hope that helps.

Related

best way to export Eclipse project to GitHub

I need to export an Eclipse project to GitHub. I am using Eclipse-Mars with the eGit plugin. I have spent hours reading documentation, tutorials, and posts and see that there are basically two ways
Create an Eclipse project and a local Git repository. Commit to local repository. Create a repository on GitHub. Push the Eclipse project to the repository on GitHub. When I try this, I get the error "rejected non-fast-forward". I have no idea why. I did create a .gitignore on GitHub when I created the repository - is that causing a problem?
Create a repository on GitHub. In Eclipse, clone this repository and then add files. Commit to local repository, then push. This works, but I end up with a weird configuration on GitHub:
reponame/myprojname/src
when I would prefer the more normal
reponame/src
Which method is the correct way to proceed? Why do I get the push error in the first method, and why the strange folder layout in the second?
You first need to pull the github code into you local machine.
=> git remote add origin
=> git pull origin master
will automatically fetch and merge the github repo with your local copy. You may need to resolve some conflicts that could be generated due to 3-way merge.
After all this, you can use -
=> git push -u origin master
For the second Point,
If you want src/ directory directly under reponame/ on github, then you should execute git clone after creating the project in eclipse and git clone should be executed inside the myprojectname/ directory.
When you created the .gitignore file on GitHub, you created a commit in the repository that isn't in your local copy. You'll need to add the GitHub repo as a remote, pull the change, and then push your local changes:
git remote add origin <path to your repository>
git pull origin master
git push -u origin master

Egit can't fetch README changes

I'm using Eclipse 4.2.1 and EGIT. I've done the following:
Created an account on Github.
Created a Repo and initialized it with a readMe from Github at the time I created it.
Cloned the repo using EGIT.
Created a Java project in Eclipse, a single class with a main method.
Share the project with GIT. Team-> Share Project-> GIT
In the Configure GIT repo dialog: Selected the repo I just cloned from Github.
Do a commit.
Push to remote origin.
Go back to Github and make a change to the readMe. (This shows in the commits on Github)
Fetch the changes with EGIT.
The changed readMe is shown in the remote tracking branch in EGIT but not in my local master branch. I tried refreshing but it still doesn't work. After doing this my local master is one behind and I can't push. I get rejected non-fast forward.
I can fix this by creating a new local branch based on HEAD then merging it into my local master. But why is this happening? Is anyone else experiencing this?
Fetching only gets the changes from github into the remote tracking branch (imagine this as a kind of index) on your local machine, but not into your working directory (the real files you edit). You still have to merge the remote changes into your local branch (which you can do by expanding the repository node Branches -> Remote Tracking -> origin/master and selecting "Merge" in the context menu).
If you always just want to fetch and immediately merge the remote changes, use the "Pull" command instead of the "Fetch" command, it is a combination of fetch and merge.

Fork from a branch in github

Is there a way to fork from a specific branch on GitHub? … For example, moodle has many branches (1.9, 2.0 … and so on). Can a clone be performed of just branch 1.9 and not the master branch always? Is it possible to clone a specific branch onto my PC?
I don’t know a native way yet, but you can do it following this recipe:
Fork the repository in question (called ‘upstream’) on the GitHub website to your workspace there.
Run the GitHub desktop application and clone the repository onto your PC.
Use the GitHub desktop application to open a shell in the repository. (The git commands are not available from the default PowerShell unless you configure that manually.)
Set the source repository as upstream:
git remote add upstream https://github.com/{user}/{source-repo}.git
Fetch the full upstream repository. (Right now, you only have a copy of its master branch.)
git fetch upstream
Make your file system copy the branch you want and give it any name:
git checkout upstream/{branch-in-question}
git checkout -b temporary
Publish your repo using the GitHub desktop application.
On the GitHub website, open your repository and click ‘settings’.
Change the “Default branch” to ‘temporary’. (Just change the drop-down menu, you don’t need to click the “Rename” button.)
Go back to your repository, go to the ‘branches’ tab, now you can delete the “master” branch.
Delete the master branch on your shell and make a new master branch:
git branch -d master
git branch master
git checkout master
git -d temporary
Once more, publish your repo using the GitHub desktop application.
On the GitHub website, open your repository and click ‘settings’.
Change the “Default branch” back to the (new) ‘master’ branch.
Go back to your repository, go to the ‘branches’ tab, now you can delete the “temporary” branch.
This should be what you were looking for. Perhaps GitHub will provide a more convenient way to do this in future (e.g., clicking “Fork” from a project’s branch results in exactly this behaviour).
Cloning means that you create a copy of the whole repository in your account including all branches and tags. However you are free to switch and track branches however you like.
No command line needed. Just create a new branch in your forked repository in GitHub. GitHub will ask you if you want to clone/mirror this new branch from the upstream repository. You can give any name to the new branch.
Yes, you can clone the single branch. For example, you have a branch named release1.0. If you would like to clone this branch into your pc then use the following line of code:
$ git clone git#bitbucket.org:git_username/git_repository_example -b release1.0 --single-branch
For those who don't like working with command-line. Here is a simple guide using the desktop client for GitHub:
Click the fork button of the repo on GitHub.com:
Make sure you have the desktop client installed
Click this button:
Clone the repo
In the desktop client, select the desired branch
Select the branch you'd like to work on and you're done
I'm posting here the method I've used.
Like the OP I wanted to only copy/fork one branch. But couldn't find an easy way.
in your repo create a new branch. It doesn't need to have the same name as the branch you want to fork
once created, verify that it is the selected branch, and click "Compare"
reverse the order of comparison (I have a userscript for that, see my profile if it's something you want to test).
the "base" repository must be yours, with the branch you've created
the "head" repository is the original, and the branch is the branch you want to fork
hit "create pull request" and continue until the PR is applied
That's it. You have the branch forked.
I'm using bitbucket but I'm sure this would work for GitHub as well.
Create a new repository
Checkout the branch using GitExtensions
Click Push to open the Push dialog
Set the destination URL to the new repository
Set the destination branch to "master"
Push
Your new repository will have the full history of the one branch only (not all branches like forking will have).
A fast, alternative approach is to create your own new repo.
Go to https://github.com/new and make a new repo. Do not initialize with README.
Scroll down to get your git remote
Then:
git remote rm origin
git config master.remote origin
git config master.merge refs/heads/master
// Run code from above image
git push --set-upstream origin yourbranchname
You will have a new repo with the original repo's code and a branch that can be made into a pull request.
SOLUTION:
For remote repository on GitHub and local repository
After fork all branches to your GitHub repository, you can delete Redundant branches in your GitHub repository.
And then you can only clone the branches you need to local.
Step One
Step Two
Only For local repository
git clone -b <branch name> --single-branch <repository>
If you want to further save your disk space, you can clone remote repository without history:
git clone -b <branch name> --depth 1 <repository>
notice: --depth implies --single-branch unless --no-single-branch is given.
https://git-scm.com/docs/git-clone
Switch to the branch you need in source repo
Click "Fork". You'll get forked master and the branch you're in.
I don't know how it works with more branches, but for my needs worked pretty well.

EGit Local vs. Remote repositories

I'm new to git and am wrapping my head around how I'm supposed to be using git and egit. From the egit tutorial, I have setup a respository on GitHub, pushed my Eclipse projects to the remote GitHub repository from my local workspace, I can push changes to GitHub, switch branches, see the updates on GitHub, etc. This all makes sense.
Looking at the Git Repository explorer, I have a listing of "Local" branches and have no "Remote Tracking" branches and I have no "Remotes" listed. When I create a branch from a local branch, the egit dialog indicates "You are creating a branch based on a local branch" and suggests that I should be making a branch from a remote tracking branch.
So my question is, am I correctly using egit?
Should I just continue pushing changes to the remote GitHub repository? If so, what happens once I share the project and other developers clone the repository and start making changes to the remote repository?
Or should I now ditch the local repository and setup a new remote repository by cloning the existing GitHub repository that I initially created from my workspace?
Or do I create a new Push and Fetch "Remote" for my existing git repository?
Or something else?
Confused.
Since you created the repo on your local system and then pushed it to github without creating a remote you don't have a remote at hand. A remote is simply a short alias for the remote repository's URL. To fix this create a remote and a push and fetch configuration from the repositories view. In order to populate remote tracking branches in your local repo you need to run fetch once. As soon as this is done you can use "Push to upstream" instead of the more complex Team > Push... dialog which allows to define all parameters on the fly. When using native git command line you'll find the same concepts implemented there:
with
"$ git push [url] [refspec]" (e.g. "$ git push https://github/user/myrepo.git master:master")
you pass all parameters explicitly, this is similar to Team > Push... in EGit
with
"$ git push [remote]" (e.g. "$ git push origin")
you push to the repository defined by the configuration parameters of the given remote (check .git/config to see these parameters or open repository configuration from egit preference in Eclipse), this is similar to Team > Push to upstream in EGit. Usually the refspec used in this way is implicitly configured when creating a local branch based on a remote tracking branch. It's also possible to add this configuration later but since this is more
tedious manual configuration the other way is more handy.
If you clone a remote repository the repository you cloned from is stored as remote "origin" in your clone. This way you can skip configuring the remote manually. This is only needed if the repository is born when you create it from scratch.
The "Branching" section of the Egit User Guide can help:
There is no obligation to create a local branch which would be named like a remote tracking branch (see "Having a hard time understanding git-fetch" to have a good understanding of "remote tracing branches).
You can create as many local branches (i.e. branches that you won't necessary push anywhere) as you want/need.
But if you don"t see any remote branch, maybe you didn't fetch that GitHub repo in the first place: see Fetching.

How do I get MercurialEclipse and Bitbucket to talk to each other?

I'm an Eclipse user, but I'm a newbie to Mercurial and to Bitbucket. I think I understand the command-line hg commands. I can create repositories, clone, push, pull, update, that stuff.
If I have a project in Eclipse, I can create a local repository for it. I can't figure out how to clone this repository up to Bitbucket.
If I have a project in Eclipse, I can create a remote repository on Bitbucket. Then I don't have a local repository, so I can't use any of the Team... commands, and can't do anything.
If I have a repository on Bitbucket, I can't get to it, because I don't have a local repository, so again I can't do anything.
If I create separate repositories locally and on Bitbucket, then I have two different repositories, and I don't know enough Mercurial to merge(?) different repositories.
There must be some blindingly obvious to get a project off the ground, but I'm blind to it. I can do this just fine from the command line, but MercurialEclipse is defeating me. No luck so far with Google and assorted documentation...
Help?
Doing it using Eclise "Team" UI:
Create a project in Eclipse and "share" it using Mercurial repository type. That will create local repository (by default in the same location where your project is).
Create project repository on BitBucket.
Use "Team">"Push" to push local changes to your remote BitBucket repo. First time it will ask you to enter the repository URL, user name and password. All this information is available on your Bitbucket web UI.
Don't forget that you have to do 2 stage commits after that. Commit in Eclipse UI will commit it in your local repository. In your team perspective's Synchronize view you will see additional "Outgoing" and "Incoming" entries. Using right-click menu on them you will be able to push/pull your changes to/from your BitBucket repo.
Remote repo information can be managed in special "Mercurial Repositories" view.
More info can be found in the tutorials at http://ekkescorner.wordpress.com/blog-series/git-mercurial/
Following the directions provided by bitbucket should be enough.
You can either create a repository on bitbucket and clone it on your desktop:
hg clone https://bitbucket.org/youraccount/yourproject
...
hg pull -u # to pull changes and update
hg push # to push changes to this repo
Or use a local repository and push these changes to a newly created repository on bitbucket:
cd /path/to/existing/hg/repo/
hg add [...]
hg commit
hg push https://bitbucket.org/youraccount/yourproject
Basically, two repositories are "bound" by:
a common changeset in their history
the [paths] configuration in /path/to/existing/hg/repo/.hg/hgrc, that lists remote repositories you can read/push to.