Come si usa rails runner con il Gemfile in /var/www/discourse

Sviluppatore
1

Ho uno script che deve caricare alcuni dati da un sqlite3 e poi importarli in discourse.

rails runner

Presumo di poter usare qualcosa di simile in /shared/add_in_reverse.rb:

require "sqlite3"

# Apri un database
db = SQLite3::Database.new "sqlite3.db"

k = 1234
db.execute( "SELECT * from foo where id = ?'", [ k ] ) do |row|
   puts row
end

title = "hello there"
u = User.find_or_create_by(username: "mexample") do |user|
   user.email = "me@example.com"
end
c = Category.find_or_create_by(name: "Something by mexample") do |category|
   category.user = u
end
Topic.create!( title: title, category: c, user: u )

E poi eseguirlo con:

rails r /shared/my_custom_script.rb

Ma questo fallisce con cannot load such file -- sqlite3 (LoadError)

bundler: failed to load command: script/rails (script/rails)

internal:/usr/local/lib/ruby/site_ruby/3.2.0/rubygems/core_ext/kernel_require.rb:38:in `require': cannot load such file -- sqlite3 (LoadError)
        from internal:/usr/local/lib/ruby/site_ruby/3.2.0/rubygems/core_ext/kernel_require.rb:38:in `require'
        from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/bootsnap-1.17.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:17:in `require'
        from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/zeitwerk-2.6.12/lib/zeitwerk/kernel.rb:38:in `require'

Gemfile e bundle exec?

Mi sono ricordato che ruby a volte ha bisogno di usare Gemfiles? Quindi, ho pensato che se fossi nella directory /var/www/discourse potrei anteporre bundle exec. Ma questo fallisce:

#  bundle exec rails r /shared/add_in_reverse.rb
fatal: detected dubious ownership in repository at '/var/www/discourse'
To add an exception for this directory, call:

        git config --global --add safe.directory /var/www/discourse
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/connection_adapters/postgresql_adapter.rb:81:in `rescue in new_client': We could not find your database: discourse. Which can be found in the database configuration file located at config/database.yml. (ActiveRecord::NoDatabaseError)

To resolve this issue:

- Did you create the database for this app, or delete it? You may need to create your database.
- Has the database name changed? Check your database.yml config has the correct database name.
...

IMPORT=1

Ok. Ho visto alcuni esempi con IMPORT=1. Ne ho bisogno?

IMPORT=1 rails r /shared/add_in_reverse.rb
You are trying to install in deployment mode after changing
your Gemfile. Run `bundle install` elsewhere and add the
updated Gemfile.lock to version control.

If this is a development machine, remove the /var/www/discourse/Gemfile freeze
by running `bundle config unset deployment`.

The list of sources changed
The dependencies in your gemfile changed

You have added to the Gemfile:
* mysql2
* redcarpet
* sqlite3 (~> 1.3, >= 1.3.13)
* ruby-bbcode-to-md
* reverse_markdown
* tiny_tds
* csv
* parallel
# IMPORT=1 bundle exec rails r /shared/add_in_reverse.rb
You are trying to install in deployment mode after changing
your Gemfile. Run `bundle install` elsewhere and add the
updated Gemfile.lock to version control.

If this is a development machine, remove the /var/www/discourse/Gemfile freeze
by running `bundle config unset deployment`.

The list of sources changed
The dependencies in your gemfile changed

You have added to the Gemfile:
* mysql2
* redcarpet
* sqlite3 (~> 1.3, >= 1.3.13)
* ruby-bbcode-to-md
* reverse_markdown
* tiny_tds
* csv
* parallel

Non ho modificato affatto il Gemfile; voglio solo usare lo sqlite specificato in quel Gemfile.

Perché due rails/ruby?

Il problema è che quello nel path è sbagliato e dovrei usare il ruby fornito? Vedo un sacco di rubini e rails. Ma usare quello fornito non funziona (o non so come usarlo correttamente).

# which ruby
/usr/local/bin/ruby
# which rails
/usr/local/bin/rails
# find /var/www/discourse/ | grep ruby | grep vendor | grep bin | grep rails
/var/www/discourse/vendor/bundle/ruby/3.2.0/bin/rails

# /var/www/discourse/vendor/bundle/ruby/3.2.0/bin/rails runner /shared/add_in_reverse.rb
/usr/local/lib/ruby/site_ruby/3.2.0/rubygems.rb:264:in `find_spec_for_exe': can't find gem railties (>= 0.a) with executable rails (Gem::GemNotFoundException)
        from /usr/local/lib/ruby/site_ruby/3.2.0/rubygems.rb:283:in `activate_bin_path'
        from /var/www/discourse/vendor/bundle/ruby/3.2.0/bin/rails:25:in `<main>'
2

Suppongo che potrei semplicemente usare i backtick con il binario sqlite? Dopotutto sto ottenendo solo una singola riga. Ma sono perplesso sul perché ciò che sto cercando di fare non sia facile, pensavo che sqlite fosse il database predefinito per tutti i nuovi progetti Rails. È stato disabilitato intenzionalmente per Discourse?