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View Code? Open in Web Editor NEWA simple example of a ppx with Reason and esy
License: MIT License
A simple example of a ppx with Reason and esy
License: MIT License
Hello! I'm trying to run the command esy build
as specified in the README, and I'm getting the following error:
info esy build 0.5.8 (using package.json)
File "example-native/dune", line 1, characters 0-84:
1 | (executable
2 | (name Hello)
3 | (public_name Hello.exe)
4 | (preprocess (pps test_ppx))
5 | )
Error: The current project defines some public elements, but no opam packages
are defined.
Please add a <package>.opam file at the project root so that these elements
are installed into it.
error: command failed: 'refmterr' 'dune' 'build' '-p' 'test_ppx' (exited with 1)
esy-build-package: exiting with errors above...
error: build failed with exit code: 1
esy: exiting due to errors above
Any ideas on how to fix it? Note that I'm quite new to Reason so I apologize for an inconvenience. I'm attempting to learn how to write a PPX ๐ .
Thanks in advance!
Tried running test_bs
. After installing and build root, and running yarn
then esy
in test_bs
, i got the following errors:
~/D/h/test_bs โฏโฏโฏ esy โ 130
info esy 0.6.2 (using esy.json)
info checking https://github.com/ocaml/opam-repository for updates...
info checking https://github.com/esy-ocaml/esy-opam-override for updates...
info resolving esy packages: done
info solving esy constraints: done
info resolving npm packages: done
info fetching: done
.... installing @opam/ocaml-secondary-compiler@opam:4.08.1@ee .... installing @opam/ocaml-migrate-parsetree@opam:1.5.0@3e31 info installing: done
info building @opam/ocamlfind-secondary@opam:1.8.1@9b0e1546
error: build failed with exit code: 1
build log:
# esy-build-package: building: @opam/ocamlfind-secondary@opam:1.8.1
# esy-build-package: pwd: /Users/mandalarian/.esy/3/b/opam__s__ocamlfind_secondary-opam__c__1.8.1-bb3faeb0
# esy-build-package: running: 'substs' 'META.in'
# esy-build-package: running: 'substs' 'ocaml-secondary-compiler.conf.in'
# esy-build-package: running: './configure' '-sitelib' '/Users/mandalarian/.esy/3_____________________________________________________________/i/opam__s__ocaml_secondary_compiler-opam__c__4.08.1-071830cd/share/ocaml-secondary-compiler/lib' '-no-camlp4'
Welcome to findlib version 1.8.1
Configuring core...
Checking for #remove_directory...
Testing threading model...
systhread_supported: true
Testing DLLs...
Testing whether ppxopt can be supported...
Checking for ocamlc -opaque...
Configuring libraries...
native dynlink: found
labltk: not present
ocamlbuild: not present
camlp4: disabled
compiler-libs: found
dbm: not present (normal since OCaml-4.00)
num: not present (normal since OCaml-4.06)
bytes: found, installing fake library
spacetime: found
graphics: not found
Configuration for dynlink written to site-lib-src/dynlink/META
Configuration for str written to site-lib-src/str/META
Configuration for threads written to site-lib-src/threads/META
Configuration for unix written to site-lib-src/unix/META
Configuration for stdlib written to site-lib-src/stdlib/META
Configuration for bigarray written to site-lib-src/bigarray/META
Configuration for ocamldoc written to site-lib-src/ocamldoc/META
Configuration for compiler-libs written to site-lib-src/compiler-libs/META
Configuration for bytes written to site-lib-src/bytes/META
Configuration for raw_spacetime written to site-lib-src/raw_spacetime/META
Detecting compiler arguments: (extractor built) ok
About the OCAML core installation:
Standard library: /Users/mandalarian/.esy/3_____________________________________________________________/i/ocaml-4.6.1000-a4275564/lib/ocaml
Binaries: /Users/mandalarian/.esy/3_____________________________________________________________/i/ocaml-4.6.1000-a4275564/bin
Manual pages: /Users/mandalarian/.esy/3_____________________________________________________________/i/ocaml-4.6.1000-a4275564/man
Multi-threading type: posix
The directory of site-specific packages will be
site-lib: /Users/mandalarian/.esy/3_____________________________________________________________/i/opam__s__ocaml_secondary_compiler-opam__c__4.08.1-071830cd/share/ocaml-secondary-compiler/lib
The configuration file is written to:
findlib config file: /Users/mandalarian/.esy/3_____________________________________________________________/i/ocaml-4.6.1000-a4275564/etc/findlib.conf
Software will be installed:
Libraries: in <site-lib>/findlib
Binaries: /Users/mandalarian/.esy/3_____________________________________________________________/i/ocaml-4.6.1000-a4275564/bin
Manual pages: /Users/mandalarian/.esy/3_____________________________________________________________/i/ocaml-4.6.1000-a4275564/man
topfind script: /Users/mandalarian/.esy/3_____________________________________________________________/i/ocaml-4.6.1000-a4275564/lib/ocaml
Topfind ppxopt support: yes
Toolbox: no
Link custom runtime: yes
Need bytes compatibility: no
Configuration has been written to Makefile.config
You can now do 'make all', and optionally 'make opt', to build ocamlfind.
# esy-build-package: running: 'make' 'install-meta'
for x in `ls site-lib-src`; do if [ -f "site-lib-src/$x/META" ]; then mkdir -p "/Users/mandalarian/.esy/3_____________________________________________________________/i/opam__s__ocaml_secondary_compiler-opam__c__4.08.1-071830cd/share/ocaml-secondary-compiler/lib/$x"; cp site-lib-src/$x/META "/Users/mandalarian/.esy/3_____________________________________________________________/i/opam__s__ocaml_secondary_compiler-opam__c__4.08.1-071830cd/share/ocaml-secondary-compiler/lib/$x"; fi; done
mkdir: /Users/mandalarian/.esy/3_____________________________________________________________/i/opam__s__ocaml_secondary_compiler-opam__c__4.08.1-071830cd/share/ocaml-secondary-compiler/lib/bigarray: Operation not permitted
cp: /Users/mandalarian/.esy/3_____________________________________________________________/i/opam__s__ocaml_secondary_compiler-opam__c__4.08.1-071830cd/share/ocaml-secondary-compiler/lib/bigarray: Operation not permitted
mkdir: /Users/mandalarian/.esy/3_____________________________________________________________/i/opam__s__ocaml_secondary_compiler-opam__c__4.08.1-071830cd/share/ocaml-secondary-compiler/lib/bytes: Operation not permitted
cp: /Users/mandalarian/.esy/3_____________________________________________________________/i/opam__s__ocaml_secondary_compiler-opam__c__4.08.1-071830cd/share/ocaml-secondary-compiler/lib/bytes: Operation not permitted
cp: /Users/mandalarian/.esy/3_____________________________________________________________/i/opam__s__ocaml_secondary_compiler-opam__c__4.08.1-071830cd/share/ocaml-secondary-compiler/lib/compiler-libs/META: Operation not permitted
mkdir: /Users/mandalarian/.esy/3_____________________________________________________________/i/opam__s__ocaml_secondary_compiler-opam__c__4.08.1-071830cd/share/ocaml-secondary-compiler/lib/dynlink: Operation not permitted
cp: /Users/mandalarian/.esy/3_____________________________________________________________/i/opam__s__ocaml_secondary_compiler-opam__c__4.08.1-071830cd/share/ocaml-secondary-compiler/lib/dynlink: Operation not permitted
cp: /Users/mandalarian/.esy/3_____________________________________________________________/i/opam__s__ocaml_secondary_compiler-opam__c__4.08.1-071830cd/share/ocaml-secondary-compiler/lib/ocamldoc/META: Operation not permitted
mkdir: /Users/mandalarian/.esy/3_____________________________________________________________/i/opam__s__ocaml_secondary_compiler-opam__c__4.08.1-071830cd/share/ocaml-secondary-compiler/lib/raw_spacetime: Operation not permitted
cp: /Users/mandalarian/.esy/3_____________________________________________________________/i/opam__s__ocaml_secondary_compiler-opam__c__4.08.1-071830cd/share/ocaml-secondary-compiler/lib/raw_spacetime: Operation not permitted
mkdir: /Users/mandalarian/.esy/3_____________________________________________________________/i/opam__s__ocaml_secondary_compiler-opam__c__4.08.1-071830cd/share/ocaml-secondary-compiler/lib/stdlib: Operation not permitted
cp: /Users/mandalarian/.esy/3_____________________________________________________________/i/opam__s__ocaml_secondary_compiler-opam__c__4.08.1-071830cd/share/ocaml-secondary-compiler/lib/stdlib: Operation not permitted
mkdir: /Users/mandalarian/.esy/3_____________________________________________________________/i/opam__s__ocaml_secondary_compiler-opam__c__4.08.1-071830cd/share/ocaml-secondary-compiler/lib/str: Operation not permitted
cp: /Users/mandalarian/.esy/3_____________________________________________________________/i/opam__s__ocaml_secondary_compiler-opam__c__4.08.1-071830cd/share/ocaml-secondary-compiler/lib/str: Operation not permitted
cp: /Users/mandalarian/.esy/3_____________________________________________________________/i/opam__s__ocaml_secondary_compiler-opam__c__4.08.1-071830cd/share/ocaml-secondary-compiler/lib/threads/META: Operation not permitted
mkdir: /Users/mandalarian/.esy/3_____________________________________________________________/i/opam__s__ocaml_secondary_compiler-opam__c__4.08.1-071830cd/share/ocaml-secondary-compiler/lib/unix: Operation not permitted
cp: /Users/mandalarian/.esy/3_____________________________________________________________/i/opam__s__ocaml_secondary_compiler-opam__c__4.08.1-071830cd/share/ocaml-secondary-compiler/lib/unix: Operation not permitted
make: *** [install-meta] Error 1
error: command failed: 'make' 'install-meta' (exited with 2)
esy-build-package: exiting with errors above...
building @opam/ocamlfind-secondary@opam:1.8.1
esy: exiting due to errors above
~/D
test_native
works as intended.
FYI in case you wanted to fix and share.
Thanks for sharing.
@aantron added in bisect_ppx
a really nice fallback approach where after downloading, the ppx will build with esy if the user platform is not supported by the prebuilt binaries.
Would be nice to add this to the hello-ppx-esy
example.
Hi,
I'm totally inexperienced with native reason and esy, so I don't really understand what the issue is. But I was unable to get the bucklescript (test_bs
) example working.
Here is the output when I try run yarn build
inside the test_bs
folder:
yarn run v1.22.0
$ bsb -make-world
[1/3] Building src/Index.reast
FAILED: src/Index.reast
/home/jasoons/Documents/learning/ocaml/ppx/hello-ppx-esy/test_bs/node_modules/bs-platform/lib/bsc.exe -w -30-40+6+7+27+32..39+44+45+101 -color always -bs-jsx 2 -ppx 'esy x ppx_42' -o src/Index.reast -bs-syntax-only -bs-binary-ast /home/jasoons/Documents/learning/ocaml/ppx/hello-ppx-esy/test_bs/src/Index.re
info building @opam/dune@opam:2.5.0@aef1678b
error: build failed with exit code: 1
build log:
# esy-build-package: building: @opam/dune@opam:2.5.0
# esy-build-package: pwd: /home/jasoons/.esy/3/b/opam__s__dune-opam__c__2.5.0-b0d2c727
# esy-build-package: running: 'ocaml' 'bootstrap.ml' '-j' '4'
ocamlfind -toolchain secondary ocamlc 2>.duneboot.ocamlfind-output
ocamlfind: [WARNING] Undefined toolchain: secondary
The ocamlfind's secondary toolchain does not seem to be correctly
installed.
Dune requires OCaml 4.07 or later to compile.
Please either upgrade your compile or configure a secondary OCaml compiler
(in opam, this can be done by installing the ocamlfind-secondary package).
error: command failed: 'ocaml' 'bootstrap.ml' '-j' '4' (exited with 2)
esy-build-package: exiting with errors above...
building @opam/dune@opam:2.5.0
esy: exiting due to errors above
We've found a bug for you!
/home/jasoons/Documents/learning/ocaml/ppx/hello-ppx-esy/test_bs/src/Index.re
Error while running external preprocessor
Command line: esy x ppx_42 '/tmp/camlppx81734c' '/tmp/camlppx4a215f'
FAILED: subcommand failed.
error Command failed with exit code 2.
And running the esy
command inside the test_bs
folder gave me this error:
info esy 0.6.2 (using esy.json)
info building @opam/dune@opam:2.5.0@aef1678b
error: build failed with exit code: 1
build log:
# esy-build-package: building: @opam/dune@opam:2.5.0
# esy-build-package: pwd: /home/jasoons/.esy/3/b/opam__s__dune-opam__c__2.5.0-b0d2c727
# esy-build-package: running: 'ocaml' 'bootstrap.ml' '-j' '4'
ocamlfind -toolchain secondary ocamlc 2>.duneboot.ocamlfind-output
ocamlfind: [WARNING] Undefined toolchain: secondary
The ocamlfind's secondary toolchain does not seem to be correctly
installed.
Dune requires OCaml 4.07 or later to compile.
Please either upgrade your compile or configure a secondary OCaml compiler
(in opam, this can be done by installing the ocamlfind-secondary package).
error: command failed: 'ocaml' 'bootstrap.ml' '-j' '4' (exited with 2)
esy-build-package: exiting with errors above...
building @opam/dune@opam:2.5.0
esy: exiting due to errors above
Running yarn
in the project root gives me this error:
yarn install v1.22.0
info No lockfile found.
[1/4] Resolving packages...
[2/4] Fetching packages...
[3/4] Linking dependencies...
[4/4] Building fresh packages...
success Saved lockfile.
$ node ./copyPlatformBinaryInPlace.js
ppx_42 does not support this platform :(
ppx_42 comes prepacked as built binaries to avoid large
dependencies at build-time.
If you want ppx_42 to support this platform natively,
please open an issue at our repository, linked above. Please
specify that you are on the linux platform,
on the x64 architecture.
internal/fs/utils.js:230
throw err;
^
Error: ENOENT: no such file or directory, copyfile 'bin/ppx_42-linux-x64.exe' -> 'ppx'
at Object.copyFileSync (fs.js:1807:3)
at copyFileSync (/home/jasoons/Documents/learning/ocaml/ppx/hello-ppx-esy/copyPlatformBinaryInPlace.js:44:8)
at Object.<anonymous> (/home/jasoons/Documents/learning/ocaml/ppx/hello-ppx-esy/copyPlatformBinaryInPlace.js:33:3)
at Module._compile (internal/modules/cjs/loader.js:1158:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:1178:10)
at Module.load (internal/modules/cjs/loader.js:1002:32)
at Function.Module._load (internal/modules/cjs/loader.js:901:14)
at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:74:12)
at internal/main/run_main_module.js:18:47 {
errno: -2,
syscall: 'copyfile',
code: 'ENOENT',
path: 'bin/ppx_42-linux-x64.exe',
dest: 'ppx'
}
This is because esy doesn't seem to create a file called bin/ppx_42-linux-x64.exe
(or the copyPlatformBinaryInPlace.js
file is wrong). I don't know if this could be because something changed in the latest version of esy or what.
I got the ppx working by changing the ppx-flags in the bs-config.json
to be as follows:
"ppx-flags": [
// "esy x ppx_42"
"../_esy/default/build/default/bin/Bin.exe"
],
Anyway, big thanks for putting this together, building ppxs isn't a very approachable task for beginners at the moment, and this definitely helps a lot!
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