Add extra information about when we change fibers. The janet
stack is really a spaghetti stack, where each fiber represents
a group of stack frames as well as a place where we can longjmp to. It
is therefor useful information for the programmer to know where each
stack frame is.
However, an argument could be made that this clutters the stackframe
and is more of a hindrance than a help.
This allows dependencies to be marked such that they are not
primary dependencies installed by the users - rather, they are
dependencies of dependencies. This distinction is important when
a user installs a package that itself has dependencies.
This also interacts with new features to prevent a user from breaking
their installation by installing needed packages or
installing/uninstalling bundles out of order.
bundle/backup is needed to make failed reinstalls able to rollback. It
also allows python wheel like functionality, where bundles can be build
on one machine, packaged, and then distributed and installed on other
compatible machines without compilers.
buffer/format-at is to buffer/format as buffer/push-at is to
buffer/push. It allows us to format in the middle of an existing
buffer. Prior, to do this operation and extra buffer creating was
required.
The bundle module contains tools for modifying the contents of
(dyn *syspath*) and providing a common interface for installing
packages (called "bundles").
The functions are:
* bundle/install
* bundle/uninstall
* bundle/manifest
* bundle/do-hook
* bundle/list
* bundle/add-file
* bundle/add-directory
A bundle is a directory that contains any number of source files and
other extra files, as well as a directory "hooks/", which contains a
flat listing of janet scripts. This version of the bundle module is not
responsible for building C source modules or for downloading files over
the network.
