WARNING: THIS IS A BREAKING CHANGE FOR THEME/FONT/NLINUM CUSTOMIZATIONS.
This change was motivated by the need to decouple theme and font loading
from the ui/doom module.
Now, it is doom-core's purview. Theme and fonts are loaded after
initfiles are read (attached to the doom-init-ui-hook hook), giving
other modules (especially private ones) a chance to change the theme or
fonts.
+ Refactor core-ui.el
+ New init hook: doom-init-ui-hook
+ Decouple theme/font loading from ui/doom
+ Load modelines are doom-init-ui-hook
+ New theme/font variables (replaces old ui/doom variables)
+ doom-theme
+ doom-font
+ doom-variable-pitch-font
+ doom-unicode-font
+ Change nlinum variables
+ doom-line-number-lpad
+ doom-line-number-rpad
+ doom-line-number-pad-char
Addresses #117
+ Improves modeline appearance in terminal Emacs
+ Moves version control branch to righter-most edge to minimize uneven
spacing when all-the-icon icons are present (due to their non-uniform
widths).
+ Switches from octicon to material iconset for flycheck segment (more
consistent and look better).
+ enable lexical-scope everywhere (lexical-binding = t): ~5-10% faster
startup; ~5-20% general boost
+ reduce consing, function calls & garbage collection by preferring
cl-loop & dolist over lambda closures (for mapc[ar], add-hook, and
various cl-lib filter/map/reduce functions) -- where possible
+ prefer functions with dedicated opcodes, like assq (see byte-defop's
in bytecomp.el for more)
+ prefer pcase & cond (faster) over cl-case
+ general refactor for code readability
+ ensure naming & style conventions are adhered to
+ appease byte-compiler by marking unused variables with underscore
+ defer minor mode activation to after-init, emacs-startup or
window-setup hooks; a customization opportunity for users + ensures
custom functionality won't interfere with startup.
The modeline resolves a relative path to the current file in order to
display a short path string in the modeline. However, symlinks would
break this, resulting in paths like: ../../../../real/path/to/file.
