User purposes are exclusively for user configs.
Layers shall set purpose extensions instead to allow
reconfiguration.
The existing layers have been refactored to use
extensions now. So this kind of hack is not longer
needed.
This reverts commit 29c78ce841 and all other fixes
that have been made afterwards.
The motivation is that use-package is seen by many as a replacement for
`require`. Is use-package always defer the loading of packages then is breaks
this use case, this does not respect POLA so even if it was making Spacemacs
loading faster (up to 3s faster on some startup on my machine) we just cannot
use it, it would be irresponsible. Spacemacs should be easy to use, loading
performance will come with time but it is not a priority.
Had to create dummy init functions at some places since the owner of a package
is the last layer that defines the init function of a package. And a package
can be installed only if it has an owner.
This replaces the older pattern
:toggle (configuration-layer/package-usedp ..)
This implementation ensures that :disabled-for honors dependent packages, i.e.
if package a depends on package b, which is owned by layer c, and layer c is
disabled for layer d, then neither package a nor b will be configured for layer
d. Previously, this was only true for package a, but not b.
This commit also fixes:
- configuration-layer/describe-package now shows which post-init and pre-init
functions are disabled, if any
- Does not recreate all layer objects unconditionally when calling
configuration-layer/discover-layers. Previously, this led to all layers being
recreated after e.g. `SPC h SPC`, without any of the dotfile information.
Since this information is now necessary for
configuration-layer/describe-package, it’s important that we don’t clear the
indexed layers when invoking this function.
With a nil value for dotspacemacs-switch-to-buffer-prefers-purpose,
switch-to-buffer prefers using the current window, same as vanilla
Emacs. With a non-nil value, switch-to-buffer prefers another window
with the same purpose as the buffer. This affects actions like
spacemacs/alternate-buffer, and opening buffers from Dired.
Also remove the check on purpose-mode. Using the purpose layer without
purpose-mode does not make sense so I prefer to throw an error is such
case happens.
Update README.org and add spacemacs-purpose layer to spacemacs
distribution.
Move functions of the layer to funcs.el and prefix variables and
functions introduced by the layer with `spacemacs`.
