QML dev setup with nix

[sweenu]

After going into the nix shell, I have what I think is the right env variable:

$ nix shell
$ env | rg QML
QML2_IMPORT_PATH=/home/sweenu/repos/caelestia/shell/build/qml

Yet, then, when I start helix or zed from the shell, I'm getting errors on all imported variables. On my imports, I get:

Warnings occurred while importing module "QtQuick": [import]
Failed to import QtQuick. Are your import paths set up properly? Did you build your project?
If yes, did you set the "QT_QML_GENERATE_QMLLS_INI" CMake variable on your project to "ON"? [import]

I have no experience in QML development. If I'm missing something simply, I would love some help!

[Markus328]

Hi, I will try to figure out whats this. This is not supposed to happen as the nix shell also is not supposed to change anything other than the PATH.

But anyway, if you want to enter a dev shell for development, you should use nix develop and after qs -p .

[sweenu]

Yes, I use direnv.
When not in the repo, here's the variable:

$ env | rg QML
QML2_IMPORT_PATH=/etc/profiles/per-user/sweenu/lib/qt-5.15.17/qml:/etc/profiles/per-user/sweenu/lib/qt-6/qml

[sweenu]

I'm not sure what you mean by qs -p .. How will it help me with my dev environment to launch quickshell ?

[Markus328]

well, the QML2_IMPORT_PATH is set to the quickshell can find the caelestia plugin, but at the time I noticed this variable is overrided and some application that uses QtQuick will potentially break (only inside dev shell). I dont know if your zed is the nixpkgs#zed-editor or the helix is nixpkgs#helix cuz I've tested both and gave me no errors. But anyway there is a issue with that overrinding (it should be a prefix or suffix)

[Markus328]

I'm not sure what you mean by qs -p .. How will it help me with my dev environment to launch quickshell ?

And this is a preferable way to develop Caelestia (faster method with hot reloading + manual building that means cached builds), but you can use whatever method you wish

[soramanew]

You can create an empty .qmlls.ini file and launch quickshell, it will automatically populate it for the LSP to work correctly. Read the quickshell docs for more info about that

[Markus328]

> direnv reload
direnv: loading /userdata/@workspace/shell/.envrc
direnv: using flake
direnv: nix-direnv: Renewed cache
-- Configuring done (0.1s)
-- Generating done (0.0s)
-- Build files have been written to: /userdata/@workspace/shell/build
ninja: no work to do.
direnv: export +AR +AS +CAELESTIA_LIB_DIR +CAELESTIA_XKB_RULES_PATH +CC +CMAKE_INCLUDE_PATH +CMAKE_LIBRARY_PATH +CONFIG_SHELL +CXX +GETTEXTDATADIRS +GSETTINGS_SCHEMAS_PATH +HOST_PATH +IN_NIX_SHELL +LD +NIXPKGS_CMAKE_PREFIX_PATH +NIX_BINTOOLS +NIX_BINTOOLS_WRAPPER_TARGET_HOST_x86_64_unknown_linux_gnu +NIX_BUILD_CORES +NIX_CC +NIX_CC_WRAPPER_TARGET_HOST_x86_64_unknown_linux_gnu +NIX_CFLAGS_COMPILE +NIX_ENFORCE_NO_NATIVE +NIX_HARDENING_ENABLE +NIX_LDFLAGS +NIX_PKG_CONFIG_WRAPPER_TARGET_HOST_x86_64_unknown_linux_gnu +NIX_STORE +NM +OBJCOPY +OBJDUMP +PKG_CONFIG +PKG_CONFIG_PATH +QMAKE +QMAKEMODULES +QMAKEPATH +QT_ADDITIONAL_PACKAGES_PREFIX_PATH +RANLIB +READELF +SIZE +SOURCE_DATE_EPOCH +STRINGS +STRIP +XML_CATALOG_FILES +__structuredAttrs +buildInputs +buildPhase +builder +cmakeFlags +configureFlags +depsBuildBuild +depsBuildBuildPropagated +depsBuildTarget +depsBuildTargetPropagated +depsHostHost +depsHostHostPropagated +depsTargetTarget +depsTargetTargetPropagated +doCheck +doInstallCheck +dontAddDisableDepTrack +mesonFlags +name +nativeBuildInputs +out +outputs +patches +phases +preferLocalBuild +propagatedBuildInputs +propagatedNativeBuildInputs +shell +shellHook +stdenv +strictDeps +system ~PATH ~QML2_IMPORT_PATH ~XDG_DATA_DIRS
 > echo $QML2_IMPORT_PATH
/userdata/@workspace/shell/build/qml:/home/markus/.nix-profile/lib/qt-5.15.17/qml:/home/markus/.nix-profile/lib/qt-6/qml

I think that will fix the issue

[sweenu]

Thank you for your help! It removed almost all import errors. I still have some, I'll try to figure out why.

[sweenu]

Actually, it was adding the .qmlls.ini like @soramanew said that removed most errors!

[sweenu]

I also see on this page that the LSP has some limitations: https://quickshell.org/docs/v0.1.0/guide/install-setup/ . I think I have the best I can currently have.