New macros file-exists-p! & project-file-exists-p!

The latter replaces the doom-project-has! macro

core/core-lib.el

@@ -348,5 +348,19 @@ Body forms can access the hook's arguments through the let-bound variable
             (t (user-error "associate! invalid rules for mode [%s] (modes %s) (match %s) (files %s)"
                            mode modes match files))))))
 
+(defmacro file-exists-p! (spec &optional directory)
+  "Returns t if the files in SPEC all exist.
+
+SPEC can be a single file or a list of forms/files. It understands nested (and
+...) and (or ...), as well.
+
+DIRECTORY is where to look for the files in SPEC if they aren't absolute. This
+doesn't apply to variables, however.
+
+For example:
+
+  (file-exists-p (or doom-core-dir \"~/.config\" \"some-file\") \"~\")"
+  (doom--resolve-path-forms spec directory))
+
 (provide 'core-lib)
 ;;; core-lib.el ends here

core/core-projects.el

@@ -94,12 +94,12 @@ If NOCACHE, don't fetch a cached answer."
 
 (defalias 'doom-project-expand #'projectile-expand-root)
 
-(defmacro doom-project-has! (files)
+(defmacro project-file-exists-p! (files)
   "Checks if the project has the specified FILES.
 Paths are relative to the project root, unless they start with ./ or ../ (in
 which case they're relative to `default-directory'). If they start with a slash,
 they are absolute."
-  (doom--resolve-path-forms files (doom-project-root)))
+  (doom--resolve-path-forms files '(doom-project-root)))
 
 (defun doom-project-find-file (dir)
   "Fuzzy-find a file under DIR."

core/test/core-lib.el

@@ -7,8 +7,8 @@
 (def-test! resolve-path-forms
   (should
    (equal (doom--resolve-path-forms '(and "fileA" "fileB"))
-          '(and (file-exists-p (expand-file-name "fileA" (doom-project-root)))
-                (file-exists-p (expand-file-name "fileB" (doom-project-root)))))))
+          '(and (file-exists-p (expand-file-name "fileA" nil))
+                (file-exists-p (expand-file-name "fileB" nil))))))
 
 ;; `doom--resolve-hook-forms'
 (def-test! resolve-hook-forms

core/test/core-projects.el

@@ -33,15 +33,15 @@
     (should (equal (doom-project-expand "init.el")
                    (expand-file-name "init.el" (doom-project-root))))))
 
-;; `doom-project-has!'
+;; `project-file-exists-p!'
 (def-test! project-has!
   :minor-mode projectile-mode
   (let ((default-directory doom-core-dir))
     ;; Resolve from project root
-    (should (doom-project-has! "init.el"))
+    (should (project-file-exists-p! "init.el"))
     ;; Chained file checks
-    (should (doom-project-has! (and "init.el" "LICENSE")))
-    (should (doom-project-has! (or "init.el" "does-not-exist")))
-    (should (doom-project-has! (and "init.el" (or "LICENSE" "does-not-exist"))))
+    (should (project-file-exists-p! (and "init.el" "LICENSE")))
+    (should (project-file-exists-p! (or "init.el" "does-not-exist")))
+    (should (project-file-exists-p! (and "init.el" (or "LICENSE" "does-not-exist"))))
     ;; Should resolve relative paths from `default-directory'
-    (should (doom-project-has! (and "./core.el" "../init.el")))))
+    (should (project-file-exists-p! (and "core/core.el" "./init.el")))))

modules/lang/cc/autoload.el

@@ -6,7 +6,7 @@
   (interactive)
   (unless (memq major-mode '(c-mode c++-mode objc-mode))
     (user-error "Not a C/C++/ObjC buffer"))
-  (unless (doom-project-has! "compile_commands.json")
+  (unless (project-file-exists-p! "compile_commands.json")
     (user-error "No compile_commands.json file"))
   ;; first rtag
   (when (and (featurep 'rtags)

modules/lang/java/autoload.el

@@ -24,7 +24,7 @@
 
 ;;;###autoload
 (defun +java|android-mode-maybe ()
-  (when (doom-project-has! (or "local.properties"
+  (when (project-file-exists-p! (or "local.properties"
                                     "AndroidManifest.xml"
                                     "src/main/AndroidManifest.xml"))
     (android-mode +1)