Integrated terminal emulators/integrated shells get the job done for
quick-and-dirty shell commands, but a lot of people take great care to tweak
their terminal workflow exactly to their liking. This makes it possible to
switch to that workflow seamlessly, by opening their terminal emulator of
choosing in the current directory or at the project root, and even supports
working over `ssh` using `tramp`.
As mentioned in https://github.com/syl20bnr/spacemacs/issues/10779#issuecomment-427712967,
emacs 26.1 changed the default behavior for term-char-mode to prevent cursor
movement. This change restores consistent behavior on all versions of emacs and
allows normal-mode motions to work again.
Note that the buffer is still read-only while in normal-mode, so operators that
change the line (such as `C`, `D`, `S`) still don't work.
Fixes#10956Fixes#10779
Currently, when a terminal is ended, its window is also closed. This behavior is
not satisfying to all. Thus a layer variable is added to give an option whether
to close window with terminal.
I feel like we should start from scratch on this one and carefully choose the
defaults.
Also this settings is a very personal setting so if we make some buffers
useless we must have a consensus on it. Marking all special buffers starting
with `*` as useless is too aggressive and make Spacemacs less POLA since two
consecutive press on SPC TAB may not revert to the original buffer.
Enabling a company backend for a specific mode was a tedious tasks with code
scattered at different locations, one for local variable definitions, one for
company hook function definitions and another where the backends were pushed to
the local variables (which was problematic, since we ended up pushing the same
backends over and over again with `SPC f e R`, pushes have been replaced by
add-to-list calls in the new macro).
All these steps are now put together at one place with the new macro
spacemacs|add-company-backends, check its docstring for more info on its
arguments.
This macro also allows to define arbitrary buffer local variables to tune
company for specific modes (similar to layer variables via a keyword :variables)
The code related to company backends management has been moved to the
auto-completion layer in the funcs.el file. A nice side effect of this move is
that it enforces correct encapsulation of company backends related code. We can
now easily detect if there is some configuration leakage when the
auto-completion layer is not used. But we loose macro expansion at file loading
time (not sue it is a big concern though).
The function spacemacs|enable-auto-complete was never used so it has been
deleted which led to the deletion of the now empty file core-auto-completion.el.
The example in LAYERS.org regarding auto-completion is now out of date and has
been deleted. An example to setup auto-completion is provided in the README.org
file of the auto-completion layer.
