duplicate-include

Flag a static include("path") that pulls in a file an earlier include in the same file already did. Julia has no include guard, so the repeat evaluates the file a second time, redefining its methods and re-running its top-level code. Paths are compared after resolution, so "a.jl" and "./a.jl" count as the same file. Including one file into two different module blocks is not flagged — that runs its definitions into two separate namespaces — and neither is a file reached twice along different include chains.

The same file included twice, so its definitions run again:

include("util.jl")
include("util.jl")

warning: duplicate-include
 --> example.jl:2:9
  |
2 | include("util.jl")
  |         ^^^^^^^^^ duplicate include: "util.jl" is already included earlier in this file