Re: [jgit-dev] commit to bare from DirCache.newInCore

[Max Gärber <max@xxxxxxxxxxx>]

Hi,

thanks, I will have a look!

Original question see below

Br, Max

I am using a strategy taken from Gitblit [1] to commit to a bare repo.

Essentially, this involves creating the blob object directly and combining it with existing tree objects [2].

This works fine but I'd like to avoid re-creating the DirCache for every new insertion. Could I just keep the DirCache and modify it with DirCacheEditor?

If yes, how would the PathEdit object(s) look like for "insert or replace"?

Br, Max

[1] https://github.com/gitblit/gitblit/blob/a13f07850fccfb67c14737f1e09942e31023da66/src/main/java/com/gitblit/tickets/BranchTicketService.java#L309

[2]

DirCache newIndex = DirCache.newInCore();
DirCacheBuilder builder = newIndex.builder();
... 
DirCacheEntry idIndexEntry = new DirCacheEntry(file)
idIndexEntry.setObjectId(
        //create blob object from file to be referenced by the index
        inserter.insert(org.eclipse.jgit.lib.Constants.OBJ_BLOB, content.getBytes("UTF-8")));

builder.add(idIndexEntry);
...

for (DirCacheEntry entry : JGitUtils.getTreeEntries(db, "refs/heads/master", ignorePaths)) {
    builder.add(entry);
}
...
ObjectInserter odi = db.newObjectInserter();
ObjectId indexTreeId = index.writeTree(odi);

Am 16.12.2018 um 22:46 schrieb 35V LG84 (eclipse):

Hi Max,

I don't have your original post because I just subscribed, but there was an question how to commit to bare repository and re-use dircache or avoiding re-reading it.

There is a prototype of object storage with git, which tries to do something like that. It borrows ideas from Gerrit.

Prototype in question can be found here:
https://gitlab.com/e257/proto/gitdb

Actual code:
https://gitlab.com/e257/proto/gitdb/blob/master/src/main/java/GitDB.java

All logic is done in Java, but there is scala wrapper around it. I would like to very much hear what would be the most efficient and sensible way to write to the bare repositories.

Best regards,
35V LG84
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