Split jai compiler and metaprogram args in vimrc

vimrc

@@ -183,7 +183,8 @@ let g:campo_custom_ctags_args = ""
 let g:campo_jai_path = ''
 
 " Args to include when compiling a Jai file.
-let g:campo_jai_build_args = ''
+let g:campo_jai_compiler_args = ''
+let g:campo_jai_metaprogram_args = ''
 
 
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@@ -1164,56 +1165,31 @@ function! Build(optimized=0, silent=0)
     endif
 
     let l:is_jai = 0
-    let l:cmd = ""
+    let l:has_jai_build_file = 0
 
     let l:ext = tolower(expand('%:e'))
-    let l:current_dir = expand('%:h')
-    let l:parent_dir  = expand('%:p:h')
+    let l:current_dir = expand('%:p:h')
 
-    " Check if this is a jai module with a build.jai one directory back. This
-    " only works when the file is directly inside the modules folder.
-    let l:jai_module_with_build = (tolower(l:current_dir) == "modules") && filereadable(l:current_dir . "/../build.jai")
+    let l:cmd = ""
 
-    if (l:jai_module_with_build == 1) || filereadable(l:parent_dir . "/build.jai")
-         " Jai build file
+    if l:ext == "jai"
         let l:is_jai = 1
-        let l:cmd = "jai " . l:parent_dir . "/"
 
-        if l:jai_module_with_build == 1
-            let l:cmd .= "../build.jai"
+        " Check for a build file in the current directory or one directory back
+        " (e.g. we're in modules/ or src/, code/, etc)
+        if filereadable(l:current_dir . "/build.jai") || filereadable(l:current_dir . "/../build.jai")
+            let l:has_jai_build_file = 1
+
+            let l:cmd = "jai " . l:current_dir . "/"
+
+            if filereadable(l:current_dir . "/build.jai") == 1
+                let l:cmd .= "build.jai"
+            else
+                let l:cmd .= "../build.jai"
+            endif
         else
-            let l:cmd .= "build.jai"
+            let l:cmd = "jai % "
         endif
-
-        if a:optimized == 1
-            echo "Compiling release build.jai"
-            " @note We pass 'release' as a user command arg for the build file
-            " to parse. -release is a compiler arg and we don't want to use
-            " that. Ideally the build script would ignore that completely.
-            let l:cmd .= " - release"
-        else
-            echo "Compiling debug build.jai"
-        endif
-
-        " @note We aren't importing the local modules because the build file
-        " should manage that sort of thing for us.
-
-    elseif l:ext == "jai"
-        let l:is_jai = 1
-        let l:cmd = "jai % "
-
-        if a:optimized == 1
-            echo "Compiling release " . expand('%:t')
-            let l:cmd .= " -release"
-        else
-            echo "Compiling debug " . expand('%:t')
-        endif
-
-        " If there's a local modules/ directory then we'll import it.
-        if isdirectory(l:parent_dir . "/modules")
-            let l:cmd .= " -import_dir modules"
-        endif
-
     else
         let l:cmd .= './build* '
         if a:optimized == 1
@@ -1222,7 +1198,44 @@ function! Build(optimized=0, silent=0)
     endif
 
     if l:is_jai
-        let l:cmd .= ' '.g:campo_jai_build_args
+        let l:cmd .= ' '.g:campo_jai_compiler_args
+        let l:set_metaprogram_args = 0
+
+        if l:has_jai_build_file
+            if a:optimized == 1
+                echo "Compiling release build.jai"
+                " @note We pass 'release' as a user metaprogram arg for the
+                " build file to parse. -release is a compiler arg and we don't
+                " want to use that. Ideally the build script would ignore that
+                " completely. Also we don't bother adding an import directory
+                " for local modules because the build file should manage that
+                " sort of thing for us.
+                let l:cmd .= " - release"
+                let l:set_metaprogram_args = 1
+            else
+                echo "Compiling debug build.jai"
+            endif
+        else
+            if a:optimized == 1
+                echo "Compiling release " . expand('%:t')
+                let l:cmd .= " -release"
+            else
+                echo "Compiling debug " . expand('%:t')
+            endif
+
+            " If there's a local modules/ directory then we'll import it.
+            if isdirectory(l:current_dir . "/modules")
+                let l:cmd .= " -import_dir modules"
+            endif
+        endif
+
+        if g:campo_jai_compiler_args != ""
+            if l:set_metaprogram_args == 1
+                let l:cmd .= ' '.g:campo_jai_metaprogram_args
+            else
+                let l:cmd .= ' - '.g:campo_jai_metaprogram_args
+            endif
+        endif
     endif
 
     " I was originally passing -save=2 to AsyncRun! in order to save all