jgit - clone a branch of a repo without a checkout - repository

The CloneRepository command seems to ignore the setBranch parameter if you aren't doing a checkout. Is there a way to specify the branch ( instead of the master )? I don't want to checkout the entire branch but I want to add a file to that branch ( add, commit, and push )

This works for me when I use the existing snippet for cloning from the jgit-cookbook and only add the following at line 33:
.setBranch("email")
After the snippet is executed, the local clone in the temporary directory has the given branch checked out.
Another option might be to use org.eclipse.jgit.storage.dfs.InMemoryRepository to clone a Git repo in-memory and work from there.

Related

Using your own fork of Next.js

How would you use your own fork of Next.js in a project?
I tried using patch-package but the next package gets overridden by Vercel
Also tried releasing to npm but it's pretty difficult since it needs to release to many #next/ packages first
How would you go about this?
Some people frown on this technique, but I've used it in many projects with great success.
tl;dr - fork the repo on git and install directly from git. Works with monorepos by using GitPkg.
Fork the repository you want on git
Clone your new fork: git clone https://github.com/<your-user-name>/<package-name>
Make any changes and push those changes. Take note of the commit hash.
Install the dependency using the following format:
npm install <your-user-name>/<package-name>#<commit-ish>
Important: replace the <commit-ish> with the hash from Step #3 (note: a tag or branch name works too). This step is important as it makes sure you are locked to a specific version.
If you are referencing a monorepo, you can specify the subdir for the particular package you want by using GitPkg.
Continue working like you normally would. As you make changes to the package, you will need to push those changes and repeat Steps #3-4 to get the new changes in your project.
Keeping things up-to-date
To update the package, you will need to merge any new "upstream" changes made by the original author and push those to your forked repository. Then repeat Step #4 above.
Add the original "upstream" remote:
git add upstream https://github.com/vercel/next.js.git
Pull down any changes and merge them - make sure to reference the right branch name:
git fetch upstream
git checkout <main-branch>
git merge upstream/<main-branch>
Resolve any merge conflicts and then push to your fork: git push origin
Repeat step #4 from above for installing the latest changes - make sure to pick a new commit hash or tag in order to get the latest changes.

How to make changes to files inside /odoo/src and commit and merge with production branch?

I am running Odoo 13. I created a new staging branch and used the Odoo.sh web editor to make changes to primary_variables.scss (/src/odoo/addons/web/static/src/scss/primary_variables.scss). However I can't figure out how to commit these changes and push them to my staging branch and merge with the production branch. If I navigate to /src/user and git branch -r I can see all my staging branches however if I navigate to /src/odoo and run git branch -r I can see two branches origin/HEAD and origin/13.0. What am I doing wrong?
No, you can't do that.
Your instance is made up of 4 git repositories. /src/odoo is from https://github.com/odoo/odoo You can change only /src/user
You have to write your own module. That overwrites some CSS values or replaces it fully.
The next link speaks how to load your CSS file. I think you can load your modified file. As it is loaded later the original then it should overwrite original CSS.
https://www.odoo.com/documentation/13.0/reference/javascript_reference.html#assets-management

committing to repository as part of CI build

I have a CI pipeline that is likely doing something semi-perverted. Let's not debate that part.
As part of the CI, I will generate an artifact (README.md) which I would like to commit and push back to the same repository. Simply using git push origin ... doesn't work due to authentication error.
Am I constrained to using something like a secret variable and a token, and adding another remote so that it can push?
There are ways to add a ssh token to your build runtime which is able to commit or even do a push to origin.
I think even recently GitLab added a new functionality that for each build a unique token is generated which can be used for same sake.
However in general I dont think you can commit anything on the same git base that build is running on, as the check out is in a detached head mode. This means you will not be able to add to history, specially in a remote.
Next problem to consider is what this means if you were able to commit back for the build system, which can potentially trigger another build and a cycle will be triggered.
So probably either use the artifact system for it or do add the ssh token and clone/checkout/commit/push in a separate directory during the build. Anyway this doc explains how to add the token: https://docs.gitlab.com/ee/ci/ssh_keys/README.html
Gitlab seems to change .git folder after fetching project for CI job. I'm not sure it changes only remote section. So I found only solution is to add gitlab-runner user with sshkeys to gitlab. And in my job make git clone in separate folder, make changes, then commit and push it.

IntelliJ: How to create a local Java project copy for backup?

I'm new to JavaFX 8 and the IntelliJ IDE. I have a JavaFX8 project that works but not as I would like. I'd like to try another approach but the substantial changes may not work. I don't want to loose code I have working.
To save code I have working, I've been creating a new project and then locally copying all the folders(.idea, out, src) and files except .iml, of the working project into the appropriate folders in the new project with the newly generated .iml.
This always seems to work but is it proper procedure?
I'm not on a team of developers and have yet to learn Git/GitHub.
Please advise. Thanks.
Maybe you should learn how to use a Version Control System like Git, then you can create a project repository and have different branches for things you want to try out. Keeping the working code in your master branch will prevent you loosing your working code. Also, when using a vcs you can always revert to versions of your code that have been working. The IntelliJ Idea IDE has perfect support for working with all different types of version control systems. If you don't want to learn any forms of vcs then there is no other way to "backup" your working code.
Is it proper procedure? It's probably not how most people would go about achieving what you want to achieve but it's certainly workable. If you wanted to stick with that for simplicity now, I'd copy the whole directory structure, delete the .idea and .iml files, and then create a new project in IntelliJ on that clean copy: IntelliJ will automatically set up folder structure based on the existing source without you having to go through any additional manual setup.
If you're willing to experiment with the git route, to achieve the basics of what you want to achieve is not very complicated and I've written a small quick-start below. IntelliJ offers very good support for Git, and once your repository is created you can do everything you need from the IDE. I'm going to assume you're working on Windows, although the steps shouldn't be too far removed on other platforms.
Install Git
You can download and install Git from https://git-scm.com/download/win, which will install a command shell called Git Bash.
One-off setup for your project
Open up git bash and go into the directory containing your source. Rather than seeing separate drives as Windows does, Git Bash assumes there is a logical 'root' directory under which all your files are accessible. Your C: drive will be /c. To move around you can use cd to change directory (using / instead of ) and ls to list files instead of using dir.
Assuming your source code is in C:\projects\myproject:
cd /c/projects/myproject
git init
The second line above creates a git repository in that directory. This doesn't affect your code, it just creates a folder called .git that contains all of the book-keeping information.
You don't want to have every file under version control - in particular you don't want your build outputs. You need to set up a file in your project directory called .gitignore which tells git which files and directories should be ignored. As a starting point you can copy https://github.com/github/gitignore/blob/master/Java.gitignore and rename the file to .gitignore
Basic Commands and committing your initial version
There are a small number of basic commands:
git status
Running git status will tell you which files have been modified, which are not under version control, and which files have been added to the staging area to be committed next time.
git add path/to/file
This adds a file to the staging area waiting to be committed. You can add multiple files to the staging area before committing them in one go.
git commit -m "description of your change"
This commits all of the staged files as a new version, which the specified commit message.
If you go into your project directory, do a git status and check through the list to make sure there's nothing you don't want to have under version control, then you can do git add . to add everything to the staging area and git commit -m "Check in initial version of the source code" to commit it to the repository.
After you've committed, you can run
git log
To see a history of all of the changes. IntelliJ has a view that will show you the same thing.
Creating an experimental branch
This is where git shines; if you want to try something experimental you can create a branch of your project while allowing git to preserve the original version.
git checkout -b experiment1
Will create and switch to a branch called experiment1. You can delete, rename, move, rewrite and develop whatever you like on this branch. The changes you commit will be independent of your original working version.
You can switch back to your original version (preserving all of the changes you've committed on that branch) using:
git checkout master
Where master is just the name of the default branch created when you ran git init. The experimental version will still be there and can be switched to again using git checkout experiment1 or from IntelliJ using the branch selection in the bottom right corner of the status bar.
If you decide that the changes you've made in experiment1 are to become your new "good" version, you can merge them back into the master branch and repeat the cycle from there.

Git merge with overwriting local changes [duplicate]

In Git, during a merge, is there a way that we can tell git to discard local changes in case of a conflict and apply the changes from the merged branch?
I mean if there is a way, then we can do merges like branch merges without conflicts.
Before trying to merge, you can discard the local changes yourself git reset --hard HEAD.
You can replace HEAD by whatever commit hash you want.
This will bring you the the clean state of the commit you're actually on, and you'd lose all your changes.
If you want to keep them, you can stash them before with git stash, or move them to another branch:
git checkout -b new_branch
git add .
git commit -m "My awesome commit"
git checkout - # will bring you back to the last branch you were in
If you want to ignore all local changes, and an additional merge commit you want to just move your branch to the remote HEAD.
git log --oneline origin/master
# assume the first sha is bbdfa17
git reset --hard bbdfa17
Now you are at the tip of the tree with no merge commits.
It sounds like you want to read about the merge strategies 'theirs' and 'ours'. When merging you can specify that either your current branch (ours) or the remote branch (theirs) is the correct one.