overwrite file, don't mv to avoid rm

Author: IanButterworth

src/Types.jl

@@ -477,7 +477,7 @@ function write_env_usage(source_file::AbstractString, usage_filepath::AbstractSt
                 TOML.parsefile(usage_file)
             catch
                 retries += 1
-                retries > 20 && rethrow()
+                retries > 5 && rethrow()
                 sleep(0.1)
                 @goto retry1
             end
@@ -500,8 +500,10 @@ function write_env_usage(source_file::AbstractString, usage_filepath::AbstractSt
             TOML.print(io, usage, sorted=true)
         end
 
-        # Move the temp file into place, replacing the original
-        mv(temp_usage_file, usage_file, force = true)
+        # Create or overwrite the original (this is as fast as mv, but doesn't rm the original to overwrite)
+        open(usage_file, "w") do io
+            write(io, read(temp_usage_file, String))
+        end
 
         # Check that the new file has what we want in it
         new_usage = if isfile(usage_file)
@@ -512,7 +514,7 @@ function write_env_usage(source_file::AbstractString, usage_filepath::AbstractSt
                 TOML.parsefile(usage_file)
             catch
                 retries += 1
-                retries > 20 && rethrow()
+                retries > 5 && rethrow()
                 sleep(0.1)
                 @goto retry2
             end