Rename ftd.app-path -> ftd.app-url

`fastn` touches both the file system (through its fs routing) and the
urls (since it's a webserver, duh). This might create a situation where
people think `ftd.app-path` is something related to fs but it's really
constructing the path relative to your website url. For this reason,
this has been renamed to `ftd.app-url` instead.

fastn-core/src/host_builtins.rs

@@ -1,4 +1,4 @@
-/// Calling: `ftd.app-path(path = /test/)` in an ftd file of a mounted app will return the path
+/// Calling: `ftd.app-url(path = /test/)` in an ftd file of a mounted app will return the path
 /// prefixed with the `mountpoint` of the app.
 ///
 /// The `path` arg must start with a forward slash (/)
@@ -17,7 +17,7 @@
 ///
 /// ```some-test-app.fifthtry.site/index.ftd
 ///
-/// -- ftd.text: $ftd.app-path(path = /test/)
+/// -- ftd.text: $ftd.app-url(path = /test/)
 /// ```
 ///
 /// Visiting `/app/` in browser should render /app/test/
@@ -34,7 +34,7 @@ pub fn app_path(
         .and_then(|a| a.package.system.clone())
         .unwrap_or_default();
 
-    let name = "ftd#app-path".to_string();
+    let name = "ftd#app-url".to_string();
     let def = fastn_resolved::Definition::Function(fastn_resolved::Function {
         name: name.clone(),
         return_kind: fastn_resolved::KindData {
@@ -71,7 +71,7 @@ pub fn app_path(
             },
         ],
         expression: vec![fastn_resolved::FunctionExpression {
-            expression: "ftd.app_path_ex(path, app)".to_string(),
+            expression: "ftd.app_url_ex(path, app)".to_string(),
             line_number: 0,
         }],
         js: None,
@@ -109,10 +109,10 @@ pub fn main_package(config: &fastn_core::Config) -> (String, fastn_resolved::Def
 
 /// Ftd string variable that holds the `fastn.app` mounts
 ///
-/// Used by `ftd.app-path` to determine the mountpoint of the app
+/// Used by `ftd.app-url` to determine the mountpoint of the app
 #[inline]
 pub fn app_mounts(config: &fastn_core::Config) -> (String, fastn_resolved::Definition) {
-    let name = "ftd#app-mounts".to_string();
+    let name = "ftd#app-urls".to_string();
     let variants = config
         .app_mounts()
         .unwrap_or_default()

fastn-js/js/ftd.js

@@ -62,7 +62,7 @@ const ftd = (function () {
     exports.is_app_mounted = (app) => {
         if (app instanceof fastn.mutableClass) app = app.get();
         app = app.replaceAll("-", "_");
-        return !!ftd.app_mounts.get(app);
+        return !!ftd.app_urls.get(app);
     };
 
     /**
@@ -73,15 +73,15 @@ const ftd = (function () {
      *
      * @returns {string}
      */
-    exports.app_path_ex = (path, app) => {
+    exports.app_url_ex = (path, app) => {
         if (path instanceof fastn.mutableClass)
             path = fastn_utils.getStaticValue(path);
         if (app instanceof fastn.mutableClass)
             app = fastn_utils.getStaticValue(app);
 
         app = app.replaceAll("-", "_");
 
-        let prefix = ftd.app_mounts.get(app)?.get() || "";
+        let prefix = ftd.app_urls.get(app)?.get() || "";
 
         if (prefix.length > 0 && prefix.charAt(prefix.length - 1) === "/") {
             prefix = prefix.substring(0, prefix.length - 1);

fastn.com/backend/app.ftd

@@ -16,7 +16,7 @@ The above snippet will mount contents of [lets-auth.fifthtry.site](https://lets-
 
 Visiting `/-/auth/` will load `index.ftd` of lets-auth.fifthtry.site if it's available.
 
--- ds.h2: `ftd.app-path` function
+-- ds.h2: `ftd.app-url` function
 
 This functions let's apps construct paths relative to their mountpoint. For
 example, `lets-auth.fifthtry.site/index.ftd` could show a url to its signin
@@ -26,11 +26,11 @@ page (`lets-auth.fifthtry.site/signin.ftd`) using the following code:
 lang: ftd
 
 \-- ftd.text: Sign In
-link: $ftd.app-path(path = /signin/) \;; will become /-/auth/signin/
+link: $ftd.app-url(path = /signin/) \;; will become /-/auth/signin/
 
 -- ds.markdown:
 
-A second `app` parameter can be passed to `ftd.app-path` function to construct
+A second `app` parameter can be passed to `ftd.app-url` function to construct
 urls for other mounted apps. Consider the following FASTN.ftd file:
 
 
@@ -63,6 +63,6 @@ A file in `lets-auth.fifthtry.site` can construct a path that is relative to the
 lang: ftd
 
     \-- ftd.text: Go to design system docs homepage
-    link: $ftd.app-path(path = /docs/, app = ds) ;; `ds` is the system name of design-system.fifthtry.site
+    link: $ftd.app-url(path = /docs/, app = ds) ;; `ds` is the system name of design-system.fifthtry.site
 
 -- end: ds.page

fastn.com/ftd/built-in-functions.ftd

@@ -642,9 +642,9 @@ or empty.
 
 -- end: ds.rendered
 
--- ds.h2: `app-path(path: string, app: string)`
+-- ds.h2: `app-url(path: string, app: string)`
 
-Calling `ftd.app-path(path = /test/)` in an ftd file of a mounted app will
+Calling `ftd.app-url(path = /test/)` in an ftd file of a mounted app will
 return the path prefixed with the `mountpoint` of the app.
 
 The second parameter (`app`) can be used to construct paths for other mounted
@@ -671,7 +671,7 @@ package: some-test-app.fifthtry.site
 -- ds.code: some-test-app.fifthtry.site/index.ftd
 lang: ftd
 
-\-- ftd.text: $ftd.app-path(path = /test/)
+\-- ftd.text: $ftd.app-url(path = /test/)
 
 
 -- ds.markdown: Visiting `/app/` in browser should render text "/app/test/"

ftd/src/js/mod.rs

@@ -73,7 +73,7 @@ pub fn default_bag_into_js_ast() -> Vec<fastn_js::Ast> {
     ftd_asts
 }
 
-const IGNORE_GLOBAL: [&str; 2] = ["ftd#main-package", "ftd#app-mounts"];
+const IGNORE_GLOBAL: [&str; 2] = ["ftd#main-package", "ftd#app-urls"];
 
 #[derive(Debug)]
 pub struct JSAstData {