Making mercurial subrepositories behave like subversion externals

Question

The FAQ, and hginit.com have been really useful for helping me make the transition from svn to hg.

However, when it comes to using Hg\'s subrepository feature in the man

Answer 1

The problem is with your .hgsub file. It points to where the lib repo is, so if lib is a sibling to main it should be:

lib=../lib

Also your hg add lib and hg add main lines don't make sense. To what repo outside of main and lib are those being added? You're running them while in in /home/moi/hgrepos.

Here's your script with some tweaks:

+ cd /home/ry4an/hgtest
+ hg init lib
+ echo foo
+ cd lib
+ hg commit -A -m Init lib
adding lib.txt
+ cd /home/ry4an/hgtest
+ hg init main
+ echo foo
+ cd main
+ echo lib=../lib
+ hg clone ../lib
destination directory: lib
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+ hg add .hgsub main.txt
+ hg commit -m Init main: initial file and a .hgsub
committing subrepository lib
+ cd /home/ry4an/hgtest
+ hg clone main main-clone
updating to branch default
pulling subrepo lib
requesting all changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
3 files updated, 0 files merged, 0 files removed, 0 files unresolved
+ cd main-clone
+ echo foo
+ hg commit -m Modified lib.txt, from inside the main repos
committing subrepository lib
+ hg push
pushing to /home/ry4an/hgtest/main
pushing subrepo lib
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files

To do that over ssh:// you need only make a single change. When cloning the main repo change hg clone main main-clone to hg clone ssh://host/hgtest/main main-clone -- cloning the main automatically clones the lib -- that's the subrepo benefit.

Here's a log of that working:

+ cd /home/ry4an/hgtest
+ hg init lib
+ echo foo
+ cd lib
+ hg commit -A -m Init lib
adding lib.txt
+ cd /home/ry4an/hgtest
+ hg init main
+ echo foo
+ cd main
+ echo lib=../lib
+ hg clone ../lib
destination directory: lib
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+ hg add .hgsub main.txt
+ hg commit -m Init main: initial file and a .hgsub
committing subrepository lib
+ cd /home/ry4an/hgtest
+ hg clone ssh://localhost/hgtest/main main-clone
The authenticity of host 'localhost (::1)' can't be established.
RSA key fingerprint is 0c:58:d6:d3:d3:16:14:ee:3b:be:01:bc:c7:3c:92:0b.
Are you sure you want to continue connecting (yes/no)? yes
ry4an@localhost's password: 
requesting all changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 3 changes to 3 files
updating to branch default
pulling subrepo lib
ry4an@localhost's password: 
requesting all changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
3 files updated, 0 files merged, 0 files removed, 0 files unresolved
remote: Warning: Permanently added 'localhost' (RSA) to the list of known hosts.
+ cd main-clone
+ echo foo
+ hg commit -m Modified lib.txt, from inside the main repos
committing subrepository lib
+ hg push
ry4an@localhost's password: 
pushing to ssh://localhost/hgtest/main
pushing subrepo lib
ry4an@localhost's password: 
searching for changes
remote: adding changesets
remote: adding manifests
remote: adding file changes
remote: added 1 changesets with 1 changes to 1 files
searching for changes
remote: adding changesets
remote: adding manifests
remote: adding file changes
remote: added 1 changesets with 1 changes to 1 files