I am trying to convert my jbuild files to dune files. Following this documentation :
I changed my jbuild file for the tests to:
(executables
(names test)
(libraries GObject_introspection oUnit ctypes ctypes.foreign)
)
(alias
(name runtest)
(deps test.exe)
(action (run %{first-dep})))
When I run the test I have the following error:
dune runtest
File "tests/dune", line 9, characters 18-28:
Error: Unknown variable "first-dep"
I tried to look in the documentation for more information on the first-dep but found nothing.
My dune version is 1.0.1.
Does it works?
(alias
(name runtest)
(deps (:x test.exe))
(action (run %{x})))
Yes, it works thanks!. I thought that first-dep was a default/generic variable name. This is not something obvious, the documentation is not finished I guess.
Mind sending a pr to fix the docs here? %{first-dep} indeed used to be a built-in before we introduced the variable binding syntax. Now that there you can bind deps to your own names, there’s no need for this default name.
I am working on it but I don’t see how to replace it here :
(rule
(targets foo.ml)
(deps foo.cppo.ml <other files that foo.ml includes>)
(action (run %{bin:cppo} %{first-dep} -o %{targets})))
and here:
(preprocess (action (run %{bin:cppo} -V OCAML:%{ocaml_version} %{first-dep})))
In the first instance, you should write your deps field as such:
(deps (:first-dep foo.cppo.ml) <other files that foo.ml includes>)
The second example is dealt with the new special variable for preprocessing: %{input-file}
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This should also work
(alias
(name runtest)
(deps test.exe)
(action (run %{deps})))
Even shorter:
(alias
(name runtest)
(action (run ./test.exe))
But this is best:
(test (name test.exe))
4 Likes