<d_bot>
<Cyclomatic Complexity> i might be bad at looking for docs
<d_bot>
<Cyclomatic Complexity> but does anyone know a place where i can find all the utop #commands + descriptions?
<d_bot>
<Cyclomatic Complexity> also, if I do `dune utop some/path`, and then `#pwd`, I get the wrong path
<d_bot>
<octachron> `#help;;`?
<d_bot>
<Cyclomatic Complexity> i was looking for it online or with `dune utop --help`, oof and thanks
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<d_bot>
<Cyclomatic Complexity> Is there a way to `#use` a file and `#mod_use` all of its dependencies?
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<d_bot>
<octachron> Not as far as I know
<d_bot>
<Cyclomatic Complexity> are there examples online of typical utop sessions? i might be missing a thing, because using a file and not having to deal with all the `X module not found` errors seems like a very basic usecase
<d_bot>
<octachron> Generally, using compiled bytecode libraries or files works better since you can `#load` and `#load_rec` them.
<d_bot>
<Christophe> do you have those issues with `dune utop`? This usually loads everything nicely...
<d_bot>
<Cyclomatic Complexity> @octachron I see. So in my dune, I should add a bytecode target, and build it with dune build watch in the background, right?
<d_bot>
<octachron> Well without change of configuration, dune builds the bytecode by default.
<d_bot>
<Cyclomatic Complexity> hmm, why doesn't it find it then 😦
<d_bot>
<Cyclomatic Complexity> Possibly related to me going through esy?
<d_bot>
<octachron> Did you add the path to the bytecode objects with `#dir` ?
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<d_bot>
<Cyclomatic Complexity> @octachron I did `#directory "."`, doesn't change anything
<d_bot>
<Cyclomatic Complexity> I did `cd my_folder`, then `esy dune utop .`, `#pwd` prints the right folder
<d_bot>
<Cyclomatic Complexity> hm
<d_bot>
<Cyclomatic Complexity> it doesn't print the build folder
<d_bot>
<octachron> This is not the right directory of the bytecode object.
<d_bot>
<Cyclomatic Complexity> Shouldn't `dune utop` put it in the build folder?
<d_bot>
<octachron> Doesn't dune utop pull the library in the scope?
<d_bot>
<Cyclomatic Complexity> It's an executable
<d_bot>
<octachron> I would advise to make a small private library and leave only the gluing code to the executable.
<d_bot>
<Cyclomatic Complexity> a
<d_bot>
<Cyclomatic Complexity> ok
<d_bot>
<octachron> Anyway, the bytecode objects file are in `_build/default/path_to_executable/.executable_name.eobjs/bytecode`
<d_bot>
<Cyclomatic Complexity> yeah, but I don't want to enter such paths
<d_bot>
<Cyclomatic Complexity> 1. because it's a pain
<d_bot>
<Cyclomatic Complexity> 2. because esy has diff build paths actually
<d_bot>
<Cyclomatic Complexity> so i will do the small lib thing
<d_bot>
<octachron> Then it is probably better to cooperate with dune with a private lib indeed.
<d_bot>
<Cyclomatic Complexity> unrelated: i remember there is like this OCaml library that can take a file.txt, and make it into a file.ml that exports a `let main : string = "contentofthefile.txt"` or something
<d_bot>
<Cyclomatic Complexity> and it can do it with a whole folder
<d_bot>
<Cyclomatic Complexity> practical to avoid massive read/write in tests
<d_bot>
<Cyclomatic Complexity> can't recall its name, nor the keywords i should use to search for it
<d_bot>
<Cyclomatic Complexity> @octachron Thanks for the private lib thing: it works!
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<d_bot>
<Alistair> Is there a OCaml library for monad transformers?
<companion_cube>
stacking monads should really be rare, imho
<companion_cube>
(aside from lwt+result, that is)
<d_bot>
<Alistair> I've got alot of results and state being passed about my type inference algorithm, using transformers will clean up my current approach
<d_bot>
<EduardoRFS> lwt+result is already bad enough tho
<companion_cube>
I'd imitate OCaml and use mutability ;)
<companion_cube>
otherwise, it's also ok to hand-write a custom monad.
<companion_cube>
I have done that several times for state+backtracking
<companion_cube>
it'll be more efficient than stacking monads
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<d_bot>
<Alistair> Is there a prettier extension for OCaml on vscode?
<companion_cube>
you mean the colors?!
<d_bot>
<Alistair> No, as in on save it will reformat your code e.g. tabs, line size, etc
<d_bot>
<Alistair> Can you locally alias a module when opening e.g: `let open Foo as F in (bar 1, F.foo 2)`?
<companion_cube>
`let module Foo = F in …`
<companion_cube>
also cool for functors, first class modules ,etc.
<companion_cube>
`let module Foo = Bar.Make() in …`
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<d_bot>
<Alistair> Is it also possible to hide `val`s when `including`? I know ML used to have `:>`, but is there an equivalent in OCaml?
<companion_cube>
you can cast to a module type
<companion_cube>
include (Foo : BAR)
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<d_bot>
<Alistair> Thanks 🙂
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<d_bot>
<Alistair> How do I configure the ocaml-platform w/ ocamlformat?
<d_bot>
<Alistair> I've installed it using `opam install ocamlformat`
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<d_bot>
<Anurag> Your project root should contain a file called `.ocamlformat`. You can set a formatter profile there ex:
<d_bot>
<Anurag> ```
<d_bot>
<Anurag> profile=conventional
<d_bot>
<Anurag> ```
<d_bot>
<Anurag>
<d_bot>
<Anurag> After this as long as your lsp setup is working (make sure you have the ocaml language server installed), you should be able to format your code using vscode's built in commands for formatting files
<d_bot>
<monk> we had someone in #beginners have difficulty with ocaml-platform the other day with vscode, they ended up using an entirely different plugin
<d_bot>
<monk> if ocaml-platform + ocamlformat ends up working that's great, but here's the message:
<d_bot>
<monk> > [1:39 PM] pekatour: Found a solution : the OCaml and Reason IDE extension allows autocompletion. Just needed to remove OCaml Platform and install the new extension!
<d_bot>
<monk> no clue how that plays with the ocaml-lsp story
<d_bot>
<Alistair> Thank you!
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<d_bot>
<Ulugbek> Wish we had #editorsupport channel to keep track of all questions and answers
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