[Vcs-fast-import-devs] fast-import mirroring a foreign repository
vmiklos at frugalware.org
Tue Sep 8 11:26:09 BST 2009
On Tue, Sep 08, 2009 at 06:10:05AM -0400, Matt McClure <matthewlmcclure at gmail.com> wrote:
> What is the recipe using the marks options to:
> 1. Do an initial export from one VCS;
> 2. Import it to another VCS;
> 3. Do an incremental export from the first VCS;
> 4. Import the incremental changes to the second VCS?
Here is an example.
You have a git repo with 2 commits,
When you use git-fast-export, it will produce something like:
So in the exporter side you store the :1 <->
6ea71fe7d36cf5b81c2100d97a822ecf0bc04746 and :2
Now if you create a third commit in git, let's say
e1f8f0cfbef594edd12aba13df8ec53d401ce944, then git-fast-export will
And the "from :2" line is because
14b772a0d7cb983ab0c13d672ea89192c460d070 is a parent of
e1f8f0cfbef594edd12aba13df8ec53d401ce944, and from the marks file it
knows that 14b772a0d7cb983ab0c13d672ea89192c460d070 should be mapped to
It's the same on the importer side, just when you do an incremental
import, you will need the marks file to know that :2 means for example
"r2" in bzr.
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