Join multiple subrepos into one and preserve history in Mercurial

Question

Currently I have project consisting of multiple repositories, e.g.:

+---Project (main repo)
    +---Core (subrepo)
    +---Web          


        

Answer 1

First guess : Perhaps by using the convert extension with a filemap ?

Another try :

• Pull all your repos into the same repo, you will have different heads for the "default" branch
• Then for each head
  • Update to this head
  • Move the files (hg move) into the right directory
• Merge all the "default" heads together

Edit : added more details, and another try

Answer 2

Assuming you don't have to convert repos, why not simply push each repo in the central one?

1. Make sure each repo root directory have a main directory named after the repo name.
2. push each repo in the main repo.

Answer 3

I would start with using hg convert with a filemap that excludes the .hgsub and the subrepos. Next, use hg convert on the subrepos with rename entries in the filemap like: rename . Core

Once you have those new repos, you can use hg pull -f to import the changesets from the converted subrepos into the converted main repo one at a time. You'll also need to merge them into your new main repo (they form separate heads with the null revision as the most recent common ancestor).