potentially closes #95 (#96)

Project.toml

@@ -1,7 +1,7 @@
 name = "LiveServer"
 uuid = "16fef848-5104-11e9-1b77-fb7a48bbb589"
 authors = ["Jonas Asprion <[email protected]", "Thibaut Lienart <[email protected]>"]
-version = "0.3.5"
+version = "0.3.6"
 
 [deps]
 Crayons = "a8cc5b0e-0ffa-5ad4-8c14-923d3ee1735f"

src/file_watching.jl

@@ -91,9 +91,12 @@ function file_watcher_task!(fw::FileWatcher)
                     fw.callback(wf.path)
                 elseif state == -1
                     # the file does not exist, eventually delete it from list of watched files
-                    VERBOSE[] && @info("[FileWatcher]: file '$(wf.path)' does not exist " *
-                                       " (anymore); removing it from list of watched files.")
                     push!(deleted_files, i)
+                    if VERBOSE[]
+                        @info "[FileWatcher]: file '$(wf.path)' does not " *
+                              "exist (anymore); removing it from list of " *
+                              " watched files."
+                    end
                 end
             end
             # remove deleted files from list of watched files

src/server.jl

@@ -22,13 +22,20 @@ end
 """
     file_changed_callback(f_path::AbstractString)
 
-Function reacting to the change of the file at `f_path`. Is set as callback for the file watcher.
+Function reacting to the change of the file at `f_path`. Is set as callback for
+the file watcher.
 """
 function file_changed_callback(f_path::AbstractString)
-    VERBOSE[] && println("ℹ [LiveUpdater]: Reacting to change in file '$f_path'...")
+    if VERBOSE[]
+        println("ℹ [LiveUpdater]: Reacting to change in file '$f_path'...")
+    end
     if endswith(f_path, ".html")
         # if html file, update viewers of this file only
-        update_and_close_viewers!(WS_VIEWERS[f_path])
+        # check the viewer still exists otherwise may error
+        # see issue https://github.com/asprionj/LiveServer.jl/issues/95
+        if haskey(WS_VIEWERS, f_path)
+            update_and_close_viewers!(WS_VIEWERS[f_path])
+        end
     else
         # otherwise (e.g. modification to a CSS file), update all viewers
         foreach(update_and_close_viewers!, values(WS_VIEWERS))
@@ -40,8 +47,8 @@ end
 """
     get_fs_path(req_path::AbstractString)
 
-Return the filesystem path corresponding to a requested path, or an empty String if the file
-was not found.
+Return the filesystem path corresponding to a requested path, or an empty
+String if the file was not found.
 """
 function get_fs_path(req_path::AbstractString)::String
     # first element after the split is **always** "/"