jGit - how to add all files to staging area

问题

I tried in a lot of ways to clone a repo with jGit (it works). Then, I write some archive in the repository, and tried to add all (a git add *, git add -A or something like it).. but it don't work. The files simple are not added to the staging area.

My code is like this:

    FileRepositoryBuilder builder = new FileRepositoryBuilder();
    Repository repository = builder.setGitDir(new File(folder))
            .readEnvironment().findGitDir().setup().build();
    CloneCommand clone = Git.cloneRepository();
    clone.setBare(false).setCloneAllBranches(true);
    clone.setDirectory(f).setURI("git@192.168.2.43:test.git");
    try {
        clone.call();
    } catch (GitAPIException e) {
        e.printStackTrace();
    }
    Files.write("testing it...", new File(folder + "/test2.txt"),
            Charsets.UTF_8);
    Git g = new Git(repository);
    g.add().addFilepattern("*").call();

What am I doing wrong? Thanks.

Exception while trying what with addFilePattern("."):

Exception in thread "main" org.eclipse.jgit.errors.NoWorkTreeException: Bare Repository has neither a working tree, nor an index
    at org.eclipse.jgit.lib.Repository.getIndexFile(Repository.java:850)
    at org.eclipse.jgit.dircache.DirCache.lock(DirCache.java:264)
    at org.eclipse.jgit.lib.Repository.lockDirCache(Repository.java:906)
    at org.eclipse.jgit.api.AddCommand.call(AddCommand.java:138)
    at net.ciphersec.git.GitTests.main(GitTests.java:110)

回答1:

One easy way to debug this is to look at the tests of the AddCommand in the JGit repo: AddCommandTest.java

You will see that in order to add all files the pattern "*" is never used, but "." is.
And it is used in the test function named... testAddWholeRepo()(!)

git.add().addFilepattern(".").call();

The Exception:

Exception in thread "main" org.eclipse.jgit.errors.NoWorkTreeException: 
Bare Repository has neither a working tree, nor an index

is quite explicit: you need to add file in a non-bare repo.

See test method testCloneRepository() to compare with your own clone, and see if there is any difference.

回答2:

I had a situation where I had to move a file f1 from the current directory to another directory called 'temp'. After moving the file, calling git.add().addFilePattern(".").call() acted in a weird way since git status gave the following result:

Changes to be committed:
  (use "git reset HEAD <file>..." to unstage)

    new file:   temp/f1.html

Changes not staged for commit:
  (use "git add/rm <file>..." to update what will be committed)
  (use "git checkout -- <file>..." to discard changes in working directory)

    deleted:    f1.html

It recognized that a new file temp/f1 was created but didn't detect that the file was deleted first. This was perhaps because moving the file can be seen as follows

Deleting/Cutting the file f1
Creating a folder called temp
Creating/Pasting the file f1

Then I came across the setUpdate(true) that looks for updates to files that are already being tracked and will not stage new files. (Check java-doc for more info)

So I had to change my code to two lines like so in order for git to recognize both files added and modified (which includes deletion):

git.add().addFilepattern(".").call();
git.add().setUpdate(true).addFilepattern(".").call();

git status now gives the expected result:

renamed:    f1.hml -> temp/f1.html

回答3:

It might be the wildcard, I just read the javadoc for the add command, looks like you send the name of a directory in order to add its contents not a wild card:

addFilepattern

public AddCommand addFilepattern(String filepattern)

Parameters: filepattern - File to add content from. Also a leading directory name (e.g. dir to add dir/file1 and dir/file2) can be given to add all files in the directory, recursively. Fileglobs (e.g. *.c) are not yet supported.

来源：https://stackoverflow.com/questions/12734760/jgit-how-to-add-all-files-to-staging-area

标签

java

git

jgit