When the root is not the cwd, print a relative path for the "Entering
..." line rather than an absolute one.
Signed-off-by: Jeremie Dimino <jdimino@janestreet.com>
The motivation for this change is implement the --build-dir feature. This
feature lets us control the build directory which previously always defaulted to
_build. To accomplish this, Path.t had to be modified to be:
External of External.t | In_source_tree of Local.t | In_build_dir of Local.t
To represent the 3 kinds of paths dune is dealing with. The In_build_dir
constructor in particular, is relative to Path.root or some external path.
A few other refactorings had to be done to support this transition:
* The workspace is now "settable". This means that we no longer have to pass it
explicitly when converting local to absolute paths.
* Path.is_local no longer makes sense and is renamed to Path.is_managed.
Roughly, is_managed identifies paths in the build and source directories.
* Path.absoulte has been renamed of_filename_relative_to_initial_cwd
* Path.Local.root is now "." (as opposed to "")
Signed-off-by: Rudi Grinberg <rudi.grinberg@gmail.com>
Jérémie Dimino
Rudi Grinberg