Error handling for missing tailwindcss executable (#530)

nextjournal · Jul 24, 2023 · c93e084 · c93e084
1 parent 5be6a65
commit c93e084
Showing 1 changed file with 10 additions and 8 deletions.
diff --git a/src/nextjournal/clerk/builder.clj b/src/nextjournal/clerk/builder.clj
@@ -309,14 +309,16 @@
               (str path))
             (pr-str viewer)))
     (let [{:as ret :keys [out err exit]}
-          (sh "tailwindcss"
-              "--input"  tw-input
-              "--config" tw-config
-              ;; FIXME: pass inline
-              ;;"--content" (str tw-viewer)
-              ;;"--content" (str tw-folder "/**/*.edn")
-              "--output" tw-output
-              "--minify")]
+          (try (sh "tailwindcss"
+                   "--input"  tw-input
+                   "--config" tw-config
+                   ;; FIXME: pass inline
+                   ;;"--content" (str tw-viewer)
+                   ;;"--content" (str tw-folder "/**/*.edn")
+                   "--output" tw-output
+                   "--minify")
+               (catch java.io.IOException _
+                 (throw (Exception. "Clerk could not find the `tailwindcss` executable. Please install it using `npm install -D tailwindcss` and try again."))))]
       (println err)
       (println out)
       (when-not (= 0 exit)