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We have some projects which will produce some special files during maven deploy. The files will have to be put into a special git project.
Currently, we do this ourselves, but we hope it can be done automatically(by adding a maven plugin). Because this step is easily forgotten.
The question is:
Is there any API or something like that in git, that java can call it to pull, add files, commit and push. And if there is any conflict, always accept our changes.
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Always Pull Before a Push Doing so will ensure that your local copy is in sync with the remote repository. Remember, other people have been pushing to the remote copy, and if you push before syncing up, you could end up with multiple heads or merge conflicts when you push.
git commit : Append a new commit (last commit + staged modifications) to the local repository. (Commits are stored in folder /. git .) git push , git pull : Sync the local repository with its associated remote repository. push - apply changes from local into remote, pull - apply changes from remote into local.
git pull is one of many commands that claim the responsibility of 'syncing' remote content. The git remote command is used to specify what remote endpoints the syncing commands will operate on. The git push command is used to upload content to a remote repository.
Commit your changes before pulling so that your commits are merged with the remote changes during the pull. This may result in conflicts which you can begin to deal with knowing that your code is already committed should anything go wrong and you have to abort the merge for whatever reason.
Well you could have googled "git java api"
That would have returned this as the first choice
https://git-scm.com/book/en/v2/Appendix-B%3A-Embedding-Git-in-your-Applications-JGit
JGit
If you want to use Git from within a Java program, there is a fully featured Git library called JGit. JGit is a relatively full-featured implementation of Git written natively in Java, and is widely used in the Java community. The JGit project is under the Eclipse umbrella, and its home can be found at http://www.eclipse.org/jgit. Getting Set Up
There are a number of ways to connect your project with JGit and start writing code against it. Probably the easiest is to use Maven – the integration is accomplished by adding the following snippet to the tag in your pom.xml file:
<dependency> <groupId>org.eclipse.jgit</groupId> <artifactId>org.eclipse.jgit</artifactId> <version>3.5.0.201409260305-r</version> </dependency>
The version will most likely have advanced by the time you read this; check http://mvnrepository.com/artifact/org.eclipse.jgit/org.eclipse.jgit for updated repository information. Once this step is done, Maven will automatically acquire and use the JGit libraries that you’ll need.
If you would rather manage the binary dependencies yourself, pre-built JGit binaries are available from http://www.eclipse.org/jgit/download. You can build them into your project by running a command like this:
javac -cp .:org.eclipse.jgit-3.5.0.201409260305-r.jar App.java java -cp .:org.eclipse.jgit-3.5.0.201409260305-r.jar App
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