I’m not sure why but the ruby on rails package was removed in 22.11
You can see it here for 22.05
I’m wondering why this was removed and whether there is a new recommended alternate way to install?
ahh interesting - i don’t want to write a rails derivation from scratch. What would be the best way to find out what other rails developers in the community are doing to install rails?
Surely somebody has got a nice solution handy?
In https://devenv.sh we have a test for rails as an example, hope that helps 
Probably the best way forward is to implement ruby support in dream2nix
ok thanks I’ll give devenv a go.
Is devenv.sh like easy to use preconfigured nix environments?
1 Like
Ok so i took the ruby example from the devenv.sh examples:
{ pkgs, ... }:
{
languages.ruby.enable = true;
enterShell = ''
bundle
'';
}
It’s getting further and was relatively pain free - however it winges because rails needs the sqlite headers installed on the system. In ubuntu you would normally do something like sudo apt install libsqlite3-dev to get them - however nix doesn’t appear to have a similar package.
Is there a way to solve this using devenv?
{ pkgs, ... }:
{
languages.ruby.enable = true;
enterShell = ''
bundle
'';
packages = [ pkgs.sqlite ];
}
There’s a bunch of gems that are failing to build - I suspect it could be related to needing the ruby headers?
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.
current directory: /home/vagrant/BestLibraries/api/.devenv/state/.bundle/ruby/3.1.0/gems/io-console-0.6.0/ext/io/console
/nix/store/jqkpdp70i5qcwn7val5d0vbb7dlw1ij1-ruby-3.1.2/bin/ruby -I /nix/store/jqkpdp70i5qcwn7val5d0vbb7dlw1ij1-ruby-3.1.2/lib/ruby/3.1.0 extconf.rb
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers. Check the mkmf.log file for more details. You may
need configuration options.
Provided configuration options:
--with-opt-dir
--without-opt-dir
--with-opt-include
--without-opt-include=${opt-dir}/include
--with-opt-lib
--without-opt-lib=${opt-dir}/lib
--with-make-prog
--without-make-prog
--srcdir=.
--curdir
--ruby=/nix/store/jqkpdp70i5qcwn7val5d0vbb7dlw1ij1-ruby-3.1.2/bin/$(RUBY_BASE_NAME)
/nix/store/jqkpdp70i5qcwn7val5d0vbb7dlw1ij1-ruby-3.1.2/lib/ruby/3.1.0/mkmf.rb:498:in `try_do': The compiler failed to generate an executable file. (RuntimeError)
You have to install development tools first.
from /nix/store/jqkpdp70i5qcwn7val5d0vbb7dlw1ij1-ruby-3.1.2/lib/ruby/3.1.0/mkmf.rb:624:in `block in try_compile'
from /nix/store/jqkpdp70i5qcwn7val5d0vbb7dlw1ij1-ruby-3.1.2/lib/ruby/3.1.0/mkmf.rb:573:in `with_werror'
from /nix/store/jqkpdp70i5qcwn7val5d0vbb7dlw1ij1-ruby-3.1.2/lib/ruby/3.1.0/mkmf.rb:624:in `try_compile'
from /nix/store/jqkpdp70i5qcwn7val5d0vbb7dlw1ij1-ruby-3.1.2/lib/ruby/3.1.0/mkmf.rb:900:in `macro_defined?'
from extconf.rb:7:in `<main>'
To see why this extension failed to compile, please check the mkmf.log which can be found here:
/home/vagrant/BestLibraries/api/.devenv/state/.bundle/ruby/3.1.0/extensions/x86_64-linux/3.1.0/io-console-0.6.0/mkmf.log
extconf failed, exit code 1
Gem files will remain installed in /home/vagrant/BestLibraries/api/.devenv/state/.bundle/ruby/3.1.0/gems/io-console-0.6.0 for inspection.
Results logged to /home/vagrant/BestLibraries/api/.devenv/state/.bundle/ruby/3.1.0/extensions/x86_64-linux/3.1.0/io-console-0.6.0/gem_make.out
/nix/store/jqkpdp70i5qcwn7val5d0vbb7dlw1ij1-ruby-3.1.2/lib/ruby/3.1.0/rubygems/ext/builder.rb:102:in `run'
/nix/store/jqkpdp70i5qcwn7val5d0vbb7dlw1ij1-ruby-3.1.2/lib/ruby/3.1.0/rubygems/ext/ext_conf_builder.rb:28:in `build'
/nix/store/jqkpdp70i5qcwn7val5d0vbb7dlw1ij1-ruby-3.1.2/lib/ruby/3.1.0/rubygems/ext/builder.rb:171:in `build_extension'
/nix/store/jqkpdp70i5qcwn7val5d0vbb7dlw1ij1-ruby-3.1.2/lib/ruby/3.1.0/rubygems/ext/builder.rb:205:in `block in build_extensions'
/nix/store/jqkpdp70i5qcwn7val5d0vbb7dlw1ij1-ruby-3.1.2/lib/ruby/3.1.0/rubygems/ext/builder.rb:202:in `each'
/nix/store/jqkpdp70i5qcwn7val5d0vbb7dlw1ij1-ruby-3.1.2/lib/ruby/3.1.0/rubygems/ext/builder.rb:202:in `build_extensions'
/nix/store/jqkpdp70i5qcwn7val5d0vbb7dlw1ij1-ruby-3.1.2/lib/ruby/3.1.0/rubygems/installer.rb:843:in `build_extensions'
/nix/store/jqkpdp70i5qcwn7val5d0vbb7dlw1ij1-ruby-3.1.2/lib/ruby/3.1.0/bundler/rubygems_gem_installer.rb:71:in `build_extensions'
/nix/store/jqkpdp70i5qcwn7val5d0vbb7dlw1ij1-ruby-3.1.2/lib/ruby/3.1.0/bundler/rubygems_gem_installer.rb:28:in `install'
/nix/store/jqkpdp70i5qcwn7val5d0vbb7dlw1ij1-ruby-3.1.2/lib/ruby/3.1.0/bundler/source/rubygems.rb:204:in `install'
/nix/store/jqkpdp70i5qcwn7val5d0vbb7dlw1ij1-ruby-3.1.2/lib/ruby/3.1.0/bundler/installer/gem_installer.rb:54:in `install'
/nix/store/jqkpdp70i5qcwn7val5d0vbb7dlw1ij1-ruby-3.1.2/lib/ruby/3.1.0/bundler/installer/gem_installer.rb:16:in `install_from_spec'
/nix/store/jqkpdp70i5qcwn7val5d0vbb7dlw1ij1-ruby-3.1.2/lib/ruby/3.1.0/bundler/installer/parallel_installer.rb:186:in `do_install'
/nix/store/jqkpdp70i5qcwn7val5d0vbb7dlw1ij1-ruby-3.1.2/lib/ruby/3.1.0/bundler/installer/parallel_installer.rb:177:in `block in worker_pool'
/nix/store/jqkpdp70i5qcwn7val5d0vbb7dlw1ij1-ruby-3.1.2/lib/ruby/3.1.0/bundler/worker.rb:62:in `apply_func'
/nix/store/jqkpdp70i5qcwn7val5d0vbb7dlw1ij1-ruby-3.1.2/lib/ruby/3.1.0/bundler/worker.rb:57:in `block in process_queue'
/nix/store/jqkpdp70i5qcwn7val5d0vbb7dlw1ij1-ruby-3.1.2/lib/ruby/3.1.0/bundler/worker.rb:54:in `loop'
/nix/store/jqkpdp70i5qcwn7val5d0vbb7dlw1ij1-ruby-3.1.2/lib/ruby/3.1.0/bundler/worker.rb:54:in `process_queue'
/nix/store/jqkpdp70i5qcwn7val5d0vbb7dlw1ij1-ruby-3.1.2/lib/ruby/3.1.0/bundler/worker.rb:91:in `block (2 levels) in create_threads'
An error occurred while installing io-console (0.6.0), and Bundler cannot continue.
In Gemfile:
debug was resolved to 1.7.1, which depends on
irb was resolved to 1.6.2, which depends on
reline was resolved to 0.3.2, which depends on
io-console
When I look specifically in the gem logs I get errors like these:
vagrant@carverlinux ~/B/api (master) [5]> cat /home/vagrant/BestLibraries/api/.devenv/state/.bundle/ruby/3.1.0/extensions/x86_64-linux/3.1.0/io-console-0.6.0/mkmf.log
LD_LIBRARY_PATH=.:/nix/store/jqkpdp70i5qcwn7val5d0vbb7dlw1ij1-ruby-3.1.2/lib:/nix/store/kz7sbh10ns27ldcq72hq6jw3xpx9hcpz-devenv-profile/lib: "gcc -o conftest -I/nix/store/jqkpdp70i5qcwn7val5d0vbb7dlw1ij1-ruby-3.1.2/include/ruby-3.1.0/x86_64-linux -I/nix/store/jqkpdp70i5qcwn7val5d0vbb7dlw1ij1-ruby-3.1.2/include/ruby-3.1.0/ruby/backward -I/nix/store/jqkpdp70i5qcwn7val5d0vbb7dlw1ij1-ruby-3.1.2/include/ruby-3.1.0 -I. -O3 -fPIC conftest.c -L. -L/nix/store/jqkpdp70i5qcwn7val5d0vbb7dlw1ij1-ruby-3.1.2/lib -Wl,-rpath,/nix/store/jqkpdp70i5qcwn7val5d0vbb7dlw1ij1-ruby-3.1.2/lib -L. -fstack-protector-strong -rdynamic -Wl,-export-dynamic -Wl,--no-as-needed -Wl,-rpath,/nix/store/jqkpdp70i5qcwn7val5d0vbb7dlw1ij1-ruby-3.1.2/lib -L/nix/store/jqkpdp70i5qcwn7val5d0vbb7dlw1ij1-ruby-3.1.2/lib -lruby-3.1.2 -lm -lc"
checked program was:
/* begin */
1: #include "ruby.h"
2:
3: int main(int argc, char **argv)
4: {
5: return !!argv[argc];
6: }
/* end */
Any ideas?
added gcc and clang and it compiles fine cheers all