tweaks

R/plumber.R

@@ -8,8 +8,9 @@ asa_helpers_candidates <- unique(c(
   file.path("/app", "R", "asa_api_helpers.R"),
   file.path("/home/user/app", "R", "asa_api_helpers.R")
 ))
-asa_helpers_path <- asa_helpers_candidates[file.exists(asa_helpers_candidates)][1]
-if (!length(asa_helpers_path) || !nzchar(asa_helpers_path)) {
+asa_helpers_hits <- asa_helpers_candidates[file.exists(asa_helpers_candidates)]
+asa_helpers_path <- if (length(asa_helpers_hits) > 0L) as.character(asa_helpers_hits[[1]]) else ""
+if (!nzchar(asa_helpers_path)) {
   stop(
     paste0(
       "Could not locate asa API helpers file. Tried: ",
@@ -22,6 +23,14 @@ if (!length(asa_helpers_path) || !nzchar(asa_helpers_path)) {
 }
 source(asa_helpers_path, local = TRUE)
 
+asa_gui_candidates <- unique(c(
+  file.path(getwd(), "www", "index.html"),
+  file.path("/app", "www", "index.html"),
+  file.path("/home/user/app", "www", "index.html")
+))
+asa_gui_hits <- asa_gui_candidates[file.exists(asa_gui_candidates)]
+asa_gui_path <- if (length(asa_gui_hits) > 0L) as.character(asa_gui_hits[[1]]) else ""
+
 .asa_api_boot_error <- NULL
 tryCatch(
   asa_api_bootstrap(),
@@ -88,11 +97,10 @@ function() {
 #* @get /
 #* @serializer contentType list(type = "text/html; charset=utf-8")
 function() {
-  html_path <- file.path(getwd(), "www", "index.html")
-  if (!file.exists(html_path)) {
+  if (!nzchar(asa_gui_path)) {
     return("<h1>asa-api</h1><p>GUI file not found.</p>")
   }
-  paste(readLines(html_path, warn = FALSE, encoding = "UTF-8"), collapse = "\n")
+  paste(readLines(asa_gui_path, warn = FALSE, encoding = "UTF-8"), collapse = "\n")
 }
 
 #* Run a single ASA task

README.md

@@ -1,15 +1,4 @@
----
-  title: asa-api
-  emoji: 🔎
-  colorFrom: blue
-  colorTo: green
-  sdk: docker
-  sdk_version: "latest"
-  pinned: false
----
-
-
-# asa-api
+# asa-api (Hugging Face Space)
 
 `asa-api` is a Docker-based API + GUI wrapper around [`asa::run_task()`](https://github.com/cjerzak/asa-software) designed for deployment as a Hugging Face Space.
 
@@ -175,6 +164,11 @@ The adapter is intentionally resilient to `asa` changes:
 
 The `Dockerfile` clones `asa-software` during build and installs `asa` from source.
 
+R dependency strategy in this image:
+- Base image is `rocker/r2u:22.04`.
+- Core R runtime packages (`plumber`, `jsonlite`, `reticulate`, `remotes`) are installed as binary apt packages (`r-cran-*`), not compiled from CRAN source.
+- This avoids source-compile failures such as `sodium` -> `plumber` install breaks.
+
 Build args:
 
 - `ASA_SOFTWARE_REPO` (default: `https://github.com/cjerzak/asa-software`)