I have a pretty big problem. I am going through a Ruby on Rails tutorial, and they have suggested that I use GIT for version control. I have never used it before, and through the tutorial I don't think I used it right. Here is some back story.
I created a new project, and then I created a new Github repository. I named them the same thing, and I pushed my project to that repository. I then looked at Github, and all of my project files were there. I then went through a few chapters of the tutorial, and followed there instructions for pushing files to GIT. After awhile I realized, that none of my files were being uploaded. I didn't really care, so I went on with the tutorial. Still pushing files to GIT even though they were not showing up.
IMPORTANT
My Github repository only had the few files from when I first created it, the project on my local machine has a MANY more files. In the last chapter of the tutorial I was able to follow, it told me to do these commands:
$ git add .
$ git commit -m "Finish layout and routes"
$ git checkout master
$ git merge filling-in-layout
Once I did those commands, my project located on my local machine lost ALL of the files I created in the last couple of days. My guess is that Github replaced my files from my local machine with the files on Github (Just the files created when I started the project)
I think I have been adding files to GIT on my local machine since the folder '~/.git/logs/HEAD' has all of the commits I made, with what looks like GIT file numbers.
Any help would save me so many hours.
Thanks, -Chris
You committed some changes, then got the old version and reverted to it by issuing "git merge filling-in-layout". (you created a branch "filling-in-layout")
whatever you do DO NOT -> git reset --hard <- DO NOT.
what does "git branch" say?
do this:
git checkout master (or one of the others)
and look which one is yours. ;)
Erase github from your mind. It is irrelevant. The git repository is on your machine, inside your rails app folder. That is the beauty of git. So everything you have ever committed to git while working from that folder is there. It's possible you made some mistake along the way, or that the tutorial instructed you incorrectly, but you can look through all your commits with "git log", and then just go back to the point where things were good: checkout that commit (thus recreating the situation as it was at that moment), and pick up again from there.
Pedagogically I would suggest that you not try to learn git and rails simultaneously. They are both big and interesting, but they are completely orthogonal (that's fancy talk for "they have nothing to do with one another"). If you want to learn rails, learn rails. If you want to learn git, learn git. Just a suggestion.
Related
I'm wondering how this is possible.
I made quite a bit of changes to my rails project (deleted some stuff, edited files, added files, ...) as I implemented a whole new design.
And now I want to commit my project and push it to github
git merge new-view
git add .
git commit -am "implemented the new design"
git push origin master
Now when I pulled the changes on another computer I noticed that not all of my features were working. (for example the image slider wasn't functioning).
When I go trough the files, it looks like all the changes I made are there, but I must be missing something because both projects are not behaving in the same way!
Even when I clone the project again from github (on the original computer with the working projectfolder), the feature still doesn't work.
git clone projectname
Now in my old folder I can't push any other changes as status tells me that my branch is up to date with origin/master
git status
I figure that I can just delete the github project and upload it again, but that's obviously not the way this is supposed to be done.
Any ideas what could've gone wrong?
Make sure that no important files are being ignored- see this answer
Make sure everything is truly committed. git status and git status --cached
Make sure any databases are initialized, migrated and populated with the same data.
Check browser caching.
I'm beginner on rails, heroku and git, but I've done all installation stuffs.
I created two projects on heroku.com, but I don't know how to change them from my PC (the way I looked from help doesn't work such as "$ git push heroku master").
So, how can I edit one of my herokuapp in different computers?
As I understand, I need git commands to bound my projects on PC to herokuapp, and commands to update projects from heroku to my PC (mostly 2 different Win 7 and sometimes iMac). Am I right? Does anybody can tell me how it's works?
Thank you
If you haven't ever used a version control system before you might be in for a steep learning curve.
Git allows you to manage source revision across distributed repositories. In your case, it might make sense to set up a GitHub account and create a git repository there, then use that as your master repository. You use git to pull code from the master repository to your local machine, where you make your changes. You commit your changes to your local repository and then push these changes to the master repository.
On your heroku account you then git pull from the master repository to retrieve the changes you made.
This brushes over a lot of detail that you need to know. I suggest you start googling git tutorials and read up about how git works and how it's intended to be used.
If you are totally new to git and heroku i would suggest you to go through this
I decided to learn how to use Version Control over Christmas break, so I downloaded Git, opened a GitHub account and started reading the online tutorial linked to from the GitHub website. When I got to this part http://progit.org/book/ch2-2.html I got stuck because I wasn't sure how to add files. For instance, I tried
git add C:/Finish.txt
And it said
Fatal: 'C:/Finish.txt' is outside repository
I was confused until I remember that a long time ago I had tried teaching myself Ruby on Rails and played around with Git back then. It never really went anywhere, but there's all this residual stuff floating around my system and I don't know how to change it. For instance, my Untracked files (which should be empty) are rails_projects/ and sample/.
How can I just erase all the old stuff and start over?
You should make a folder for your repository, move Finish.txt to that repository, then do git add.
For example:
# here you create C:\myrepo
cd C:\myrepo
git init .
# here you edit C:\myrepo\Finish.txt
git add Finish.txt
git commit -m "Added Finish.txt"
Start a new repository, e.g.
c:
md c:\newrepo
cd c:\newrepo
git init .
copy \Finish.txt .
git add Finish.txt
git commit -m "started over"
I strongly recommend against adding anything to C:\, let alone putting a git repo there. Unless of course you want to accidentally add all of your system disk to git :)
I can also heartily recommend using TortoiseGit which has some excellent explorer integration.
Delete any .git folder that you find in your drive.
To create a repo go to a folder that you want the repo in ( and not just randomly), do:
git init
Then proceed... Add only files that you put within this repo and not randomly from some location.
It would be very unusual to have the root directory of your hard drive be a git repository. That's probably why it's giving you the error.
git repositories are typically in a subdirectory and that subdirectory is typically a project.
To initialize a subdirectory as a git repository, you'd do:
git init (directory)
Then you'd add your files and commit.
I am new to the world of Git, GitHub and Heroku. So far, I am enjoying this paradigm but coming from a background with SVN, things seems a bit complicated to me in the world of Git. I am facing a problem for which I am looking for a solution.
Scenario:
1. I have setup a new private project on GitHub. I forked the private project and now I have the following structure in my branch:
/project
/apps
/my-apps
/my-app-1
....
/my-app-2
....
/your-apps
/your-app-1
....
/your-app-2
....
/plugins
....
I can commit the code in my Fork on GitHub from my machine in any of the folders I want. Later on, these would be pulled into the master repository by the admin of the project.
2. For every individual application in the apps folder, I have setup an app on Heroku which is a Git Repo in itself where I push my changes when I am done with the user stories from my local machine. In short, every app in the apps folder is a Rails App hosted on Heroku.
Problem:
What I want is that when I push my changes into Heroku, they can be committed into my project fork on GitHub as well, so, it also has the latest code all the time.
The issue I see is that the code on Heroku is a Git Repo while the folders which I have on GitHub are part of a Repo.
So far, what I have researched is that there is something known as Submodule in the Git World which can come to the rescue, however, I have not been able to find some newbie instructions.
Can someone in the community be kind enough to share thoughts and help me to identify the solution of this problem?
The idea behind submodules is that they're all separate git repositories that you can include into a master one and rather instead of including all the files it includes a link to that submodule instead.
How to use submodules
To use a submodule, first you must extract out the directory and create it as its own git repository by using git init. Then you can upload this separately to Github or [place of your choosing] and to use it as a submodule use the command: git submodule add [place/to/put/it] git://github.com/you/proj1.
Separation is best
I would think it better to leave these separated out as their own git repositories and push to heroku from each one. The reason? It's more likely (I feel) that you're going to be working on one at a time and doing a git commit and git push heroku master for that one only.
If you wished however to deploy all applications at the same time you could recurse down the directory tree using this Ruby script placed in the top-level directory:
Dir["**/*"].select { |dir| File.directory?(dir) }.each do |f|
Dir.chdir(dir) do
`git push origin master`
`git push heroku master`
end
end
Of course this would only work if you have staged all your changes. I can't think of a way to automate that as Ruby <= 1.9 doesn't have the module to read your thoughts.
I am developing some school grading software and decided to use Github to host the project. After building some code on my Ubuntu box I pushed it to Github and then cloned it down to my MacBook Pro. After editing the code on the MBP I pushed it back to Github. The next morning I tried to update my repo on the Ubuntu box with a git pull and it gave me all kinds of trouble.
Whats the best way to work in this situation? I don't want to fork my own repo and I don't really want to send myself emails or pull requests. Why can't I just treat Github like a master and push/pull from it onto all of my personal repos on different computers?
I'll assume your problem was that the machine on which you first created the repo crapped out when you tried to issue the git pull command.
When you clone an existing git repository (like you did on your 2nd machine, the MacBook Pro), you're automatically set up to so your git pull commands will automatically merge the remote with your local changes.
However, when you initially create a repo and then share it on a remote repository, you have to issue a few commands to make things as automated as a on cloned repo.
# GitHub gives you that instruction, you've already done that
# git remote add origin git#github.com:user_name/repo_name.git
# GitHub doesn't specify the following instructions
git config branch.master.remote origin
git config branch.master.merge refs/heads/master
These last few instructions configure git so future git pull's from this repo will merge all remote changes automatically.
The following is a bit of shameless self-promotion. If you use Ruby, I have created a Ruby-based tool that lets you deal with all these kinds of things with git remote branches. The tool is called, unsurprisingly, git_remote_branch :-)
If you don't use Ruby, my tool is probably gonna be too much of a hassle to install. What you can do is look at an old post on my blog, where most of the stuff grb can do for you was explicitly shown. Whip out your git notes file :-)
You can also add multiple SSH public keys.