Refactor doom doctor

And move font check into core/doctor.el

bin/doom-doctor

@@ -38,10 +38,10 @@
 
 ;;; Helpers
 
-(defun sh (cmd)
+(defun sh (cmd &rest args)
   (ignore-errors
     (string-trim-right
-     (shell-command-to-string cmd))))
+     (shell-command-to-string (format cmd args)))))
 
 (defun elc-check-dir (dir)
   (dolist (file (directory-files-recursively dir "\\.elc$"))
@@ -184,29 +184,6 @@
     (warn! "Warning: Windows detected")
     (explain! "DOOM was designed for MacOS and Linux. Expect a bumpy ride!"))
 
-  ;; are all default fonts present?
-  (section! "Checking your fonts...")
-  (if (not (fboundp 'find-font))
-      (progn
-        (warn! "Warning: unable to detect font")
-        (explain! "The `find-font' function is missing. This could indicate the incorrect "
-                  "version of Emacs is being used!"))
-    ;; all-the-icons fonts
-    (let ((font-dest (pcase system-type
-                       (`gnu/linux (concat (or (getenv "XDG_DATA_HOME")
-                                               "~/.local/share")
-                                           "/fonts/"))
-                       (`darwin "~/Library/Fonts/"))))
-      (when (and font-dest (require 'all-the-icons nil t))
-        (dolist (font all-the-icons-font-names)
-          (if (file-exists-p (expand-file-name font font-dest))
-              (success! "Found font %s" font)
-            (warn! "Warning: couldn't find %s font in %s"
-                   font font-dest)
-            (explain! "You can install it by running `M-x all-the-icons-install-fonts' within Emacs.\n\n"
-                      "This could also mean you've installed them in non-standard locations, in which "
-                      "case feel free to ignore this warning."))))))
-
   ;; gnutls-cli & openssl
   (section! "Checking gnutls/openssl...")
   (cond ((executable-find "gnutls-cli"))
@@ -231,7 +208,7 @@
         (t
          (error! "Important: couldn't find either gnutls-cli nor openssl")
          (explain!
-          "You won't be able to install/update packages because Emacs won't be able to "
+          "You may not be able to install/update packages because Emacs won't be able to "
           "verify HTTPS ELPA sources. Install gnutls-cli or openssl v1.0.0+. If for some "
           "reason you can't, you can bypass this verification with the INSECURE flag:\n\n"
 
@@ -288,16 +265,14 @@
                (`empty (error! "Couldn't reach %s" url))
                (`timeout (error! "Timed out trying to contact %s" ex))
                (_
-                (error! "Validated %s (this shouldn't happen!)" url))))))
+                (error! "Validated %s (this shouldn't happen!)" url)))))))
-
-        ((error! "Nope!")))
 
   ;; which variant of tar is on your system? bsd or gnu tar?
   (section! "Checking for GNU/BSD tar...")
   (let ((tar-bin (or (executable-find "gtar")
                      (executable-find "tar"))))
     (if tar-bin
-        (unless (string-match-p "(GNU tar)" (sh (format "%s --version" tar-bin)))
+        (unless (string-match-p "(GNU tar)" (sh "%s --version" tar-bin))
           (warn! "Warning: BSD tar detected")
           (explain!
            "QUELPA (through package-build) uses the system tar to build plugins, but it "

core/doctor.el

@@ -33,5 +33,27 @@
            (file-directory-p "~/.doom.d"))
   (warn! "Both %S and '~/.doom.d' exist on your system"
          (abbreviate-file-name doom-private-dir))
-  (explain! "Doom will only load one of these (~/.config/doom takes precedence). Since\n"
+  (explain! "Doom will only load one of these (~/.config/doom takes precedence). Possessing\n"
-            "it is rarely intentional that you have both, ~/.doom.d should be removed."))
+            "both is rarely intentional; you should one or the other."))
+
+;; Check for fonts
+(if (not (fboundp 'find-font))
+    (progn
+      (warn! "Warning: unable to detect font")
+      (explain! "The `find-font' function is missing. This could indicate the incorrect "
+                "version of Emacs is being used!"))
+  ;; all-the-icons fonts
+  (let ((font-dest (pcase system-type
+                     (`gnu/linux (concat (or (getenv "XDG_DATA_HOME")
+                                             "~/.local/share")
+                                         "/fonts/"))
+                     (`darwin "~/Library/Fonts/"))))
+    (when (and font-dest (require 'all-the-icons nil t))
+      (dolist (font all-the-icons-font-families)
+        (if (sh "fc-list | grep %s" font)
+            (success! "Found font %s" font)
+          (warn! "Warning: couldn't find %s font in %s"
+                 font font-dest)
+          (explain! "You can install it by running `M-x all-the-icons-install-fonts' within Emacs.\n\n"
+                    "This could also mean you've installed them in non-standard locations, in which "
+                    "case feel free to ignore this warning."))))))