overview for sxwpb

3

need help setting up nix-shell for a project (self.nix)

submitted 1 month ago by sxwpb to c/[email protected]

0 comments fedilink

I was trying to build/play-around-with the following project: https://github.com/friction2d/friction/blob/main/BUILD.md

Reading the project's build instructions, it requires some specific dependencies(ffmpeg 4.2.x for example), and since I am on fedora, I believe it is not very straight forward to get these dependencies just for this project. Because of this I looked into nix-shell as it seemed like it could be a helpful facilitator for creating the correct building environment for this project. After some research, I installed nix and configured nix-direnv. I created a shell.nix file for the project, and I believe I am very close to having a correct definition. The thing I am stuck on is: I can't seem to import/override/whatever the correct ffmpeg version, and all my attempts so far have not worked.

Atm, my shell.nix file looks like this:

shell.nix

with import <nixpkgs> {};

let
	nixgl = import (fetchTarball "https://github.com/nix-community/nixGL/archive/main.tar.gz") { };
	ffmpeg_4_2_3 = ffmpeg.override {
		version = "4.2.3";
		hash = "sha256-PibcYItd8Ls/sXdFqzjlJGNeNYqNwopXMGBOP18eEzg=";
	};
in

mkShell {
	nativeBuildInputs = [
		pkg-config
		cmake
		clang_17
	];
	buildInputs = [
		libglvnd
		nixgl.auto.nixGLDefault
		xorg.libX11
		pcre2
		expat
		libunwind
		freetype
		harfbuzz
		glib
		fontconfig
		libjpeg
		libwebp
		icu
		libsForQt5.qscintilla
		libsForQt5.full
		ffmpeg_4_2_3
	];
}

I also made some modifications inside src/app/CMakeLists.txt for qscintilla paths, like noted in the build instructions:

src/app/CMakeLists.txt - line 74

    #original#    set(QSCINTILLA_LIBRARIES_DIRS "/usr/lib" CACHE STRING "qscintilla library path")
    #original#    set(QSCINTILLA_LIBRARIES "qscintilla2_qt5" CACHE STRING "qscintilla library")
    #original#    set(QSCINTILLA_INCLUDE_DIRS "/usr/include/x86_64-linux-gnu/qt5" CACHE STRING "qscintilla includes path")
    
    execute_process (
        COMMAND nix-instantiate --eval -E "with import <nixpkgs> {}; lib.makeIncludePath [ libsForQt5.qscintilla ]"
        COMMAND sed "s/\"//g"
        OUTPUT_VARIABLE myvar1
        OUTPUT_STRIP_TRAILING_WHITESPACE
    )
    execute_process (
        COMMAND nix-instantiate --eval -E "with import <nixpkgs> {}; lib.makeLibraryPath [ libsForQt5.qscintilla ]"
        COMMAND sed "s/\"//g"
        OUTPUT_VARIABLE myvar2
        OUTPUT_STRIP_TRAILING_WHITESPACE
    )
    set(QSCINTILLA_LIBRARIES "qscintilla2")
    set(QSCINTILLA_INCLUDE_DIRS ${myvar1})
    set(QSCINTILLA_LIBRARIES_DIRS ${myvar2})

The nix-shell currently fails with the following output:

nix-shell error log

warning: The interpretation of store paths arguments ending in `.drv` recently changed. If this command is now failing try again with '/nix/store/4q1gxrjyn0spvjiwlcqwc5pkwc3pyw6v-ffmpeg-4.2.3.drv^*'
got build log for '/nix/store/4q1gxrjyn0spvjiwlcqwc5pkwc3pyw6v-ffmpeg-4.2.3.drv' from 'local'
Running phase: unpackPhase
@nix { "action": "setPhase", "phase": "unpackPhase" }
unpacking source archive /nix/store/9v0kfi9ga3lvdvq7k7hzbafshhzwr3bc-ffmpeg
source root is ffmpeg
Running phase: patchPhase
@nix { "action": "setPhase", "phase": "patchPhase" }
patching script interpreter paths in .
./compat/cuda/ptx2c.sh: interpreter directive changed from "#!/bin/sh" to "/nix/store/izpf49b74i15pcr9708s3xdwyqs4jxwl-bash-5.2p32/bin/sh"
./compat/solaris/make_sunver.pl: interpreter directive changed from "#!/usr/bin/env perl" to "/nix/store/ww69rb7srifikvilg39q4v8n9h1zcssf-perl-5.38.2/bin/perl"
./compat/windows/makedef: interpreter directive changed from "#!/bin/sh" to "/nix/store/izpf49b74i15pcr9708s3xdwyqs4jxwl-bash-5.2p32/bin/sh"
./compat/windows/mslink: interpreter directive changed from "#!/bin/sh" to "/nix/store/izpf49b74i15pcr9708s3xdwyqs4jxwl-bash-5.2p32/bin/sh"
./configure: interpreter directive changed from "#!/bin/sh" to "/nix/store/izpf49b74i15pcr9708s3xdwyqs4jxwl-bash-5.2p32/bin/sh"
./doc/doxy-wrapper.sh: interpreter directive changed from "#!/bin/sh" to "/nix/store/izpf49b74i15pcr9708s3xdwyqs4jxwl-bash-5.2p32/bin/sh"
./ffbuild/pkgconfig_generate.sh: interpreter directive changed from "#!/bin/sh" to "/nix/store/izpf49b74i15pcr9708s3xdwyqs4jxwl-bash-5.2p32/bin/sh"
./ffbuild/version.sh: interpreter directive changed from "#!/bin/sh" to "/nix/store/izpf49b74i15pcr9708s3xdwyqs4jxwl-bash-5.2p32/bin/sh"
./tests/copycooker.sh: interpreter directive changed from "#!/bin/sh" to "/nix/store/izpf49b74i15pcr9708s3xdwyqs4jxwl-bash-5.2p32/bin/sh"
./tests/fate-run.sh: interpreter directive changed from "#! /bin/sh" to "/nix/store/izpf49b74i15pcr9708s3xdwyqs4jxwl-bash-5.2p32/bin/sh"
./tests/fate.sh: interpreter directive changed from "#! /bin/sh" to "/nix/store/izpf49b74i15pcr9708s3xdwyqs4jxwl-bash-5.2p32/bin/sh"
./tests/fate/source-check.sh: interpreter directive changed from "#!/bin/sh" to "/nix/store/izpf49b74i15pcr9708s3xdwyqs4jxwl-bash-5.2p32/bin/sh"
./tools/bisect-create: interpreter directive changed from "#!/bin/sh" to "/nix/store/izpf49b74i15pcr9708s3xdwyqs4jxwl-bash-5.2p32/bin/sh"
./tools/cl2c: interpreter directive changed from "#!/bin/sh" to "/nix/store/izpf49b74i15pcr9708s3xdwyqs4jxwl-bash-5.2p32/bin/sh"
./tools/clean-diff: interpreter directive changed from "#!/bin/sh" to "/nix/store/izpf49b74i15pcr9708s3xdwyqs4jxwl-bash-5.2p32/bin/sh"
./tools/dvd2concat: interpreter directive changed from "#!/usr/bin/env perl" to "/nix/store/ww69rb7srifikvilg39q4v8n9h1zcssf-perl-5.38.2/bin/perl"
./tools/gen-rc: interpreter directive changed from "#!/bin/sh" to "/nix/store/izpf49b74i15pcr9708s3xdwyqs4jxwl-bash-5.2p32/bin/sh"
./tools/libav-merge-next-commit: interpreter directive changed from "#!/bin/sh" to "/nix/store/izpf49b74i15pcr9708s3xdwyqs4jxwl-bash-5.2p32/bin/sh"
./tools/make_chlayout_test: interpreter directive changed from "#!/usr/bin/env perl" to "/nix/store/ww69rb7srifikvilg39q4v8n9h1zcssf-perl-5.38.2/bin/perl"
./tools/missing_codec_desc: interpreter directive changed from "#!/bin/sh" to "/nix/store/izpf49b74i15pcr9708s3xdwyqs4jxwl-bash-5.2p32/bin/sh"
./tools/murge: interpreter directive changed from "#!/bin/sh" to "/nix/store/izpf49b74i15pcr9708s3xdwyqs4jxwl-bash-5.2p32/bin/sh"
./tools/patcheck: interpreter directive changed from "#!/bin/sh" to "/nix/store/izpf49b74i15pcr9708s3xdwyqs4jxwl-bash-5.2p32/bin/sh"
./tools/plotframes: interpreter directive changed from "#!/usr/bin/env perl" to "/nix/store/ww69rb7srifikvilg39q4v8n9h1zcssf-perl-5.38.2/bin/perl"
./tools/target_dec_fate.sh: interpreter directive changed from "#!/bin/sh" to "/nix/store/izpf49b74i15pcr9708s3xdwyqs4jxwl-bash-5.2p32/bin/sh"
./tools/unwrap-diff: interpreter directive changed from "#!/bin/sh" to "/nix/store/izpf49b74i15pcr9708s3xdwyqs4jxwl-bash-5.2p32/bin/sh"
Running phase: updateAutotoolsGnuConfigScriptsPhase
@nix { "action": "setPhase", "phase": "updateAutotoolsGnuConfigScriptsPhase" }
Running phase: configurePhase
@nix { "action": "setPhase", "phase": "configurePhase" }
patching script interpreter paths in ./configure
configure flags: --disable-static --prefix=/nix/store/dqm96bk6w5fkmq50zksj0lfmirhw50q5-ffmpeg-4.2.3 --target_os=linux --arch=x86_64 --pkg-config=pkg-config --enable-gpl --enable-version3 --disable-nonfree --disable-static --enable-shared --enable-pic --disable-thumb --disable-small --enable-runtime-cpudetect --disable-gray --enable-swscale-alpha --enable-hardcoded-tables --enable-safe-bitstream-reader --enable-pthreads --disable-w32threads --disable-os2threads --enable-network --enable-pixelutils --datadir=/nix/store/lfwdmxzklnvc9r49ipbbdh76a0rv3l99-ffmpeg-4.2.3-data/share/ffmpeg --enable-ffmpeg --enable-ffplay --enable-ffprobe --bindir=/nix/store/0g9hqqh06p9c9hsi70kzpbq3jxv1fdi8-ffmpeg-4.2.3-bin/bin --enable-avcodec --enable-avdevice --enable-avfilter --enable-avformat --enable-avresample --enable-avutil --enable-postproc --enable-swresample --enable-swscale --libdir=/nix/store/csfb939rimkfwlhpqr30l50maw5044bl-ffmpeg-4.2.3-lib/lib --incdir=/nix/store/mpm1sx7zs7hb3j59ykizzqbd2v0ql4ip-ffmpeg-4.2.3-dev/include --enable-doc --enable-htmlpages --enable-manpages --mandir=/nix/store/inkqgvxanp5haad5qn6jikdk096519aw-ffmpeg-4.2.3-man/share/man --enable-podpages --enable-txtpages --docdir=/nix/store/7kihjq7nv9a6ah4sqa5rrj4nih27psh1-ffmpeg-4.2.3-doc/share/doc/ffmpeg --enable-alsa --enable-amf --enable-libaom --disable-appkit --enable-libass --disable-audiotoolbox --disable-avfoundation --disable-avisynth --disable-libbluray --disable-libbs2b --enable-bzlib --disable-libcaca --enable-libcelt --disable-chromaprint --disable-libcodec2 --disable-coreimage --disable-cuda --disable-cuda-llvm --enable-cuvid --enable-libdav1d --disable-libdc1394 --enable-libdrm --disable-libfdk-aac --enable-ffnvcodec --disable-libflite --enable-fontconfig --enable-libfontconfig --enable-libfreetype --disable-frei0r --disable-libfribidi --disable-libgme --enable-gnutls --disable-libgsm --enable-iconv --disable-libilbc --disable-libjack --disable-ladspa --enable-lzma --disable-libmfx --disable-libmodplug --enable-libmp3lame --disable-libmysofa --enable-nvdec --enable-nvenc --disable-openal --disable-opencl --disable-libopencore-amrnb --disable-libopencore-amrwb --disable-opengl --disable-libopenh264 --enable-libopenjpeg --disable-libopenmpt --enable-libopus --enable-libpulse --disable-librav1e --disable-librtmp --disable-librubberband --disable-libsmbclient --enable-sdl2 --disable-libshine --disable-libsnappy --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh --disable-librsvg --enable-libsvtav1 --disable-libtensorflow --enable-libtheora --disable-libtwolame --enable-libv4l2 --enable-v4l2-m2m --enable-vaapi --enable-vdpau --disable-videotoolbox --disable-libvidstab --disable-libvmaf --disable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-vulkan --enable-libwebp --enable-libx264 --enable-libx265 --disable-libxavs --disable-libxcb --disable-libxcb-shape --disable-libxcb-shm --disable-libxcb-xfixes --disable-xlib --disable-libxml2 --enable-libxvid --enable-libzimg --enable-zlib --disable-libzmq --disable-debug --enable-optimizations --disable-extra-warnings --disable-stripping
Unknown option "--disable-librav1e".
See ./configure --help for available options.

It looks to be building ffmpeg 4.2.3 from source instead of using the cache, which makes sense as I have overridden the package to use a custom version. The build(ffmpeg 4.2.3) however fails with the error Unknown option "--disable-librav1e".

If anyone has an idea what I am doing wrong, it would help me alot.

Installing Nvidia Driver Will Be Easy Again in Fedora Workstation – Brno Hat in c/[email protected]

[–] sxwpb 6 points 1 month ago (1 children)

Nice, many people have a nvidia graphics pc. This seems very helpful for all non technical users.

keymap to inspect unsaved changes in c/[email protected]

[–] sxwpb 3 points 3 months ago* (last edited 3 months ago) (3 children)

I just use it all the time when I forget what I changed and want to make sure I’m ok with all changes before saving.

It is very similar to a command in emacs called M-x diff-buffer-with-file.

26

keymap to inspect unsaved changes (self.neovim)

submitted 3 months ago* (last edited 3 months ago) by sxwpb to c/[email protected]

7 comments fedilink

Hello, I wanted to share a small keymap I made. It lets you inspect unsaved changes in the current file. It uses diff mode, in a vertical split.

To close the diff mode, just press q in the scratch buffer.

vim.keymap.set(
	'n',
	'<M-C-D>',
	function()
		local tmpft = vim.bo.filetype
		vim.cmd.vnew()
		vim.bo.filetype = tmpft
		vim.bo.buftype = 'nofile'
		vim.keymap.set(
			'n',
			'q',
			'<cmd>bw<cr>',
			{ noremap = true, silent = true, buffer = true }
		)
		vim.cmd('silent r#|0d_')
		vim.bo.modifiable = false
		vim.cmd('diffthis|wincmd p|diffthis')
	end,
	{ noremap = true }
)

edit: I discovered that this functionality is actually documented in the help pages (:h :DiffOrig). It’s basically the same action but bound to a command

People doing the 30 days linux Challenge are having several problems because of Mint's old packages and technology. Why people still recommend it when there is Fedora and Opensuse with KDE and Gnome? in c/[email protected]

NeoVim 0.10 Released! in c/[email protected]

[–] sxwpb 3 points 6 months ago

new disable foldtext option is cool