debian: split off vim interface to its own package

So far the package does notthing fancy with vim-addon-manager.

debian/control

@@ -16,16 +16,14 @@ Dm-Upload-Allowed: yes
 Package: notmuch
 Architecture: any
 Depends: ${shlibs:Depends}, ${misc:Depends}
-Enhances: vim
-Suggests: vim, vim-addon-manager
+Recommends: notmuch-emacs | notmuch-vim
 Description: thread-based email index, search and tagging
  Notmuch is a system for indexing, searching, reading, and tagging
  large collections of email messages in maildir or mh format. It uses
  the Xapian library to provide fast, full-text search with a very
  convenient search syntax.
  .
- This package contains the notmuch command-line interface as well as
- the vim interface for notmuch.
+ This package contains the notmuch command-line interface
 
 Package: libnotmuch1
 Section: libs
@@ -82,3 +80,18 @@ Description: thread-based email index, search and tagging (emacs interface)
  This package provides an emacs based mail user agent based on
  notmuch.
 
+Package: notmuch-vim
+Architecture: all
+Section: mail
+Breaks: notmuch (<<0.6~238~)
+Replaces: notmuch (<<0.6~238~)
+Depends: ${misc:Depends}, notmuch, vim-addon-manager
+Description: thread-based email index, search and tagging (emacs interface)
+ Notmuch is a system for indexing, searching, reading, and tagging
+ large collections of email messages in maildir or mh format. It uses
+ the Xapian library to provide fast, full-text search with a very
+ convenient search syntax.
+ .
+ This package provides a vim based mail user agent based on
+ notmuch.
+

debian/notmuch-vim.install

@@ -0,0 +1,3 @@
+vim/plugin/notmuch.vim usr/share/vim/addons/plugin
+vim/syntax/notmuch-*.vim usr/share/vim/addons/syntax
+vim/notmuch.yaml usr/share/vim/registry

debian/rules

@@ -29,9 +29,3 @@ override_dh_installdocs:
 
 override_dh_auto_build:
 	make RPATH_LDFLAGS=""
-
-override_dh_install:
-	dh_install
-	install -m644 vim/plugin/notmuch.vim debian/notmuch/usr/share/vim/addons/plugin
-	install -m644 vim/syntax/notmuch-*.vim debian/notmuch/usr/share/vim/addons/syntax
-	install -m644 vim/notmuch.yaml debian/notmuch/usr/share/vim/registry