CODEWITHSUNDEEP
ocamltoplevelocaml-toplevel
Flux
Flux

Reputation: 10920

How to load toplevel modules silently

In my ~/.ocamlinit, I have some directives:

#use "topfind"
#thread
#require "core.top"

As a result, every time the OCaml toplevel (i.e. ocaml) starts, I get this huge wall of text:

        OCaml version 4.02.3

Findlib has been successfully loaded. Additional directives:
  #require "package";;      to load a package
  #list;;                   to list the available packages
  #camlp4o;;                to load camlp4 (standard syntax)
  #camlp4r;;                to load camlp4 (revised syntax)
  #predicates "p,q,...";;   to set these predicates
  Topfind.reset();;         to force that packages will be reloaded
  #thread;;                 to enable threads

/usr/lib/ocaml/threads: added to search path
/usr/lib/ocaml/unix.cma: loaded
/usr/lib/ocaml/threads/threads.cma: loaded
/usr/lib/ocaml/compiler-libs: added to search path
/usr/lib/ocaml/bigarray.cma: loaded
/home/user/.opam/system/lib/bin_prot: added to search path
/home/user/.opam/system/lib/bin_prot/bin_prot.cma: loaded
/home/user/.opam/system/lib/fieldslib: added to search path
/home/user/.opam/system/lib/fieldslib/fieldslib.cma: loaded
/usr/lib/ocaml/nums.cma: loaded
/home/user/.opam/system/lib/num-top: added to search path
/home/user/.opam/system/lib/num-top/num_top.cma: loaded
/home/user/.opam/system/lib/num: added to search path
/home/user/.opam/system/lib/sexplib: added to search path
/home/user/.opam/system/lib/sexplib/sexplib.cma: loaded
/home/user/.opam/system/lib/ppx_assert: added to search path
/home/user/.opam/system/lib/ppx_assert/ppx_assert_lib.cma: loaded
/home/user/.opam/system/lib/ppx_bench: added to search path
/home/user/.opam/system/lib/ppx_bench/ppx_bench_lib.cma: loaded
/home/user/.opam/system/lib/ppx_expect: added to search path
/home/user/.opam/system/lib/ppx_expect/expect_test_common.cma: loaded
/home/user/.opam/system/lib/ppx_expect/expect_test_config.cma: loaded
/home/user/.opam/system/lib/ppx_inline_test: added to search path
/home/user/.opam/system/lib/ppx_inline_test/inline_test_config.cma: loaded
/home/user/.opam/system/lib/ppx_inline_test/ppx_inline_test_lib.cma: loaded
/home/user/.opam/system/lib/ppx_expect/expect_test_collector.cma: loaded
/home/user/.opam/system/lib/result: added to search path
/home/user/.opam/system/lib/result/result.cma: loaded
/home/user/.opam/system/lib/typerep: added to search path
/home/user/.opam/system/lib/typerep/typerep_lib.cma: loaded
/home/user/.opam/system/lib/variantslib: added to search path
/home/user/.opam/system/lib/variantslib/variantslib.cma: loaded
/home/user/.opam/system/lib/core_kernel: added to search path
/home/user/.opam/system/lib/core_kernel/core_kernel.cma: loaded
/home/user/.opam/system/lib/sexplib/sexplib_unix.cma: loaded
/home/user/.opam/system/lib/core: added to search path
/home/user/.opam/system/lib/core/core.cma: loaded
/home/user/.opam/system/lib/core/core_top.cma: loaded
#

Is there a way to silence the loading of modules when the toplevel starts?

Upvotes: 2

Views: 446

Answers (1)

hcarty
hcarty

Reputation: 1671

trivelt's comment has the best answer - use utop! - but if you or others want to use ocaml directly you can set Sys.interactive to false to silence most of the status messages. For example:

Noisy:

$ ocaml
        OCaml version 4.06.0

# #use "topfind";;
- : unit = ()
Findlib has been successfully loaded. Additional directives:
  #require "package";;      to load a package
  #list;;                   to list the available packages
  #camlp4o;;                to load camlp4 (standard syntax)
  #camlp4r;;                to load camlp4 (revised syntax)
  #predicates "p,q,...";;   to set these predicates
  Topfind.reset();;         to force that packages will be reloaded
  #thread;;                 to enable threads

- : unit = ()

Quieter:

$ ocaml
        OCaml version 4.06.0

# Sys.interactive := false;;
- : unit = ()
# #use "topfind";;
- : unit = ()
- : unit = ()

You can put Sys.interactive := false;; at the start of your .ocamlinit file and Sys.interactive := true;; at the end if you want to have this work automatically.

Upvotes: 5

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