Clojurians Log v2

Perhaps you can use sci/file (available as *file* inside of SCI programs)

Every var has also :file as metadata

(defn ys-load [file]
  (let [file (io/file file)
        ys-code (slurp file)
        clj-code (ys/ys-compile ys-code)]
    (sci/with-bindings
      {sci/ns @sci/ns
       sci/file (.getAbsolutePath file)}
      (sci/eval-string* (sci-ctx) clj-code))))

I got that from the SCI readme

you could maybe make load-file a macro, this way it gets expanded while sci/file is still bound to the file you're processing

and then expand to something like load-file* as a function which then gets the absolute path

oh, you think the path is wrong?

I'll test that

what do you mean, the path is wrong?

The sci/file var is only bound during analysis

and macros are processed during analysis

function calls are too late

hope you get the picture

@ingy Here's a more full example (which I typed out in a REPL)

user=> (defmacro my-load-file [path] (let [current-file @sci/file] `(clojure.core/load-file* ~current-file ~path)))
#'user/my-load-file
user=> (defn load-file* [current-file path] [:do-your-thing current-file path])
#'user/load-file*
user=> (sci/binding [sci/file "user.clj"] (sci/eval-string "(defn foo [] (load-file \"dude.clj\")) (foo)" {:namespaces {'clojure.core {'load-file (sci/copy-var my-load-file nil) 'load-file* (sci/copy-var load-file* nil)}}}))
[:do-your-thing "user.clj" "dude.clj"]

I did get the picture wrt binding time. And the load file path was indeed wrong for me. What I don't get is what sci/file or *file* does. To venture a guess, it affects how slurp works? or maybe how io/file works?

sci/file works exactly the same as *file* on the JVM

ok, but I don't know what *file* does

https://clojuredocs.org/clojure.core/*file*

this one has more explanation: https://stackoverflow.com/questions/12692698/file-variable-not-working/12693068

I get *file* holds the current file path. What I'm trying to suss out is if the file functions resolve relative paths relative to *file* or relative to the current directory.

never relative path

but I can figure it out...

?

but if you want to implement it like that, you can use the idea I posted above

which is not getting through I'm afraid

functions can't use the value of *file* since that var is only bound during compilation time

I'm saying if *file* is set to /tmp/foo/aaa.clj where does slurp think the "bbb.clj" would be?

so you have to use a macro if you want to capture the file during compilation time

slurp is a function and it never uses *file*

in general JVM Clojure never uses the concept of "load something relative to this file"

everything is based on classpath or current working directory, mostly classpath idea is central though

ok so I need to do that math myself, after getting the starting point right

but this doesn't prevent you from making your own load-file which does use the relative file idea, but then it has to be a macro

like I explained above, so maybe read it again :)

I fully understand the macro binding thing

ok

*file* is just some compile time thing. it is used to set the :file value on var metadata, which is probably the main thing

I gotta run to the airport, but I think I have what I need now. Thanks!

👍

have a good flight!