Remove SQLite dependency

We've been using PostgreSQL instead for a long time.

.gitignore

@@ -7,9 +7,6 @@
 # Ignore bundler config.
 /.bundle
 
-# Ignore the default SQLite database.
-/db/*.sqlite3
-/db/*.sqlite3-journal
 /db/csv/*
 /db/backups/*
 !/backups/.gitkeep

Gemfile

@@ -55,7 +55,6 @@ gem "shrine"
 gem "sidekiq"
 gem "sidekiq-cron", "~> 1.1"
 gem "sprockets-rails", "~>3.5"
-gem "sqlite3", "~> 1.4" # database for ActiveRecord
 gem "streamio-ffmpeg"
 gem "sunspot_rails", "~> 2.7"
 gem "sunspot_solr"

Gemfile.lock

@@ -599,7 +599,6 @@ GEM
       actionpack (>= 6.1)
       activesupport (>= 6.1)
       sprockets (>= 3.0.0)
-    sqlite3 (1.7.3-x86_64-linux)
     stream (0.5.5)
     streamio-ffmpeg (3.0.2)
       multi_json (~> 1.8)
@@ -735,7 +734,6 @@ DEPENDENCIES
   spring
   spring-watcher-listen (~> 2.0.0)
   sprockets-rails (~> 3.5)
-  sqlite3 (~> 1.4)
   streamio-ffmpeg
   sunspot_rails (~> 2.7)
   sunspot_solr

config/database.yml

@@ -1,9 +1,3 @@
-# SQLite version 3.x
-#   gem install sqlite3
-#
-#   Ensure the SQLite 3 gem is defined in your Gemfile
-#   gem 'sqlite3'
-#
 default: &default
   adapter: postgresql
   pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
@@ -74,8 +68,6 @@ test:
     migrations_paths: db/interactions_migrate
 
 production:
-  # <<: *default
-  # database: db/development.sqlite3
   primary:
     adapter: <%= ENV['PRODUCTION_DATABASE_ADAPTER'] ||= 'postgresql' %>
     encoding: <%= ENV['PRODUCTION_DATABASE_ENCODING'] %>

docker/development/Dockerfile

@@ -53,7 +53,7 @@ RUN yarn set version "${YARN_VERSION}"
 RUN apt update && \
     apt-get install -y --no-install-recommends \
         ffmpeg imagemagick pdftk ghostscript shared-mime-info \
-        libarchive-tools postgresql-client-13 sqlite3 wget wait-for-it
+        libarchive-tools postgresql-client-13 wget wait-for-it
 
 # Setup ImageMagick
 RUN sed -i '/disable ghostscript format types/,+6d' /etc/ImageMagick-6/policy.xml

docker/test/Dockerfile

@@ -52,7 +52,7 @@ RUN yarn set version "${YARN_VERSION}"
 RUN apt update && \
     apt-get install -y --no-install-recommends \
         ffmpeg imagemagick pdftk ghostscript shared-mime-info \
-        libarchive-tools postgresql-client-13 sqlite3 wget wait-for-it
+        libarchive-tools postgresql-client-13 wget wait-for-it
 
 # Setup ImageMagick
 RUN sed -i '/disable ghostscript format types/,+6d' /etc/ImageMagick-6/policy.xml