How do people manage changes to common library files stored across mutiple (Mercurial) repositories?

Question

This is perhaps not a question unique to Mercurial, but that\'s the SCM that I\'ve been using most lately.

I work on multiple projects and tend to copy source code f

Answer 1

Three solutions, pick your favorite:

1. Put all projects into one repository.
2. Make a separate repository for shared code and different repository for each project.
3. One repository with Subrepositories: https://www.mercurial-scm.org/wiki/subrepos, keep all common code in one subrepo and different subrepos for each project.

Copying actual files between repositories with no common ancestors will never be optimal as history is not preserved.