Remaining are:
- parts of unit200 that Matthew plans to remove.
- the `mzscheme` implementation itself.
The implementation of `mzscheme` has been moved
to the `mzscheme` collection (from the `racket` and
`scheme` collections). The `scheme/mzscheme`
language, which was undocumented, has been removed.
This is slightly backwards-incompatible, because
the `xform` handling of precompiled headers now
evaluates code in a `racket/base`-like namespace,
instead of in a `mzscheme`-like namespace.
The new `--no-pkg-deps' or `-K' flag skips the check.
If a module in package X refers to a module in package Y, check that
package X declares a dependency on Y. Note that package X must
specifically depend on Y --- not another package that at the moment
happens to declare a dependency on Y.
A new "base" package represents the content of the core (so that, if
the core shrinks, a new "base2" can represent the smaller core).
Most every package now needs a dependency on "base".
Sometimes, it makes sense for X to access Y when X declares a
dependency on Z, because Z promises to always depend on Y. For
example, the "gui" package is defined to combne "gui-lib" and
"gui-doc", so it's appropriate to use the modules of "gui-lib" when
depending on "gui". A package's "info.rkt" can therefore define
`implies' as a subset of the dependencies listed in `deps', which
means that depending on the package implies a dependency on the listed
packages. (It's even possible for packages to mutually imply each
other, which is why the dependency checking code ends up with a
union-find.)
Dependency checking distinguishes between run-time dependencies and
build-time dependencies: anything listed in a ".dep" file is a build
dependency, at least. To imply a run-time dependency, a reference must
appear in a bytecode file's imports, and not in a subdirectory or
submodule that would be pruned for a binary package.
The `--fix-pkg-deps' flag attempts to automatically fix package
dependency declarations (i.e., modify a package's "info.rkt" file)
based on inferred dependencies.
Use `PKGS' with the top-level makefile to select packages for
a development-mode build. The default is "main-distribution",
which includes all packages in "pkgs".
Making them "etc"-relative intercts badly with redirecting
a configuration to override just a few values --- such as
the links path, which is what `make core' needs.
* Clarified bogosity of toplevel .gitignore (and other such files)
* Removed "doc/" in the toplevel file -- looks like this was some broken
leftover, and it's dangerous for at least "scribble/doc" (which
contains code).
* Collapse more common patterns into worksp instead of in each file.
* Use a trailing "/" for directories.
* racket/lib/collects/pkg/.gitignore looks like a leftover that is no
longer needed.
Allow the location of the installation-specific "links.rktd" file to
be specified in "config.rktd", and also allow extra link files to
be provided.
Allow the same for package directories.
The main file/directory in each case corresponds to the file/directory
that can be modified by an installation-scope install. Extra files
or directories in a search path supports constant links and libraries
that are shared across installations --- like "/usr/lib" versus "/lib".
The 1-second granularity of filesystem timestamps is not
good enough to deetct changes to the file --- especially
when `raco pkg' installs links and runs `raco setup' (in
the same Rcket process), in which case a newly installed link
might not be detected.
The longer-term repair is probably to add file-changed
events to Racket (based on `inotify' and similar interfaces
provided by OSes).
A collection declares release notes with a `release-notes' field in
"info.rkt".
The "doc" directory is now populated exclusively by generated content,
instead of having a static "release-notes" directory (and a "keep-dirs.rktd"
file to record the static directories).
The "racket" directory contains a pared-back version of the
repository, roughly.
The "pkgs" directory everything else in the repository, but
organized into packages.
