Add delq! and pushnew! macros

And move projectile configs to their respective modules (and out of
package configs).

core/core-lib.el

@@ -135,6 +135,20 @@ Accepts the same arguments as `message'."
 
 (defalias 'lambda! 'λ!)
 
+(defmacro pushnew! (place &rest values)
+  "Like `cl-pushnew', but will prepend VALUES to PLACE.
+The order VALUES is preserved."
+  `(dolist (--value-- (nreverse (list ,@values)))
+     (cl-pushnew --value-- ,place)))
+
+(defmacro delq! (elt list &optional fetcher)
+  "Delete ELT from LIST in-place."
+  `(setq ,list
+         (delq ,(if fetcher
+                    `(funcall ,fetcher ,elt ,list)
+                  elt)
+               ,list)))
+
 (defmacro defer-until! (condition &rest body)
   "Run BODY when CONDITION is true (checks on `after-load-functions'). Meant to
 serve as a predicated alternative to `after!'."

core/core-projects.el

@@ -39,18 +39,7 @@ Emacs.")
   (global-set-key [remap find-tag]         #'projectile-find-tag)
 
   ;; a more generic project root file
-  (push ".project" projectile-project-root-files-bottom-up)
-
-  (setq projectile-globally-ignored-directories
-        (append projectile-globally-ignored-directories
-                (list (abbreviate-file-name doom-local-dir) ".sync"
-                      "node_modules" "flow-typed"))
-        projectile-other-file-alist
-        (append projectile-other-file-alist
-                '(("css"  "scss" "sass" "less" "styl")
-                  ("scss" "css")
-                  ("sass" "css")
-                  ("less" "css")
+  (push ".project" projectile-project-root-files-bottom-up)
   (push (abbreviate-file-name doom-local-dir) projectile-globally-ignored-directories)
 
   ;; Accidentally indexing big directories like $HOME or / will massively bloat