Switch to using vips for image processing

.github/workflows/tests.yml

@@ -37,7 +37,7 @@ jobs:
     - name: Install packages
       run: |
         sudo apt-get -yqq update
-        sudo apt-get -yqq install memcached
+        sudo apt-get -yqq install memcached libvips-dev
     - name: Install gems
       run: |
         gem install bundler

Dockerfile

@@ -17,6 +17,7 @@ RUN apt-get update \
       libmagickwand-dev \
       libpq-dev \
       libsasl2-dev \
+      libvips-dev \
       libxml2-dev \
       libxslt1-dev \
       locales \

INSTALL.md

@@ -33,7 +33,7 @@ These can be installed on Ubuntu 20.04 or later with:
 ```
 sudo apt-get update
 sudo apt-get install ruby2.7 libruby2.7 ruby2.7-dev \
-                     libmagickwand-dev libxml2-dev libxslt1-dev nodejs \
+                     libvips-dev libmagickwand-dev libxml2-dev libxslt1-dev nodejs \
                      apache2 apache2-dev build-essential git-core firefox-geckodriver \
                      postgresql postgresql-contrib libpq-dev libsasl2-dev \
                      imagemagick libffi-dev libgd-dev libarchive-dev libbz2-dev yarnpkg
@@ -52,7 +52,7 @@ sudo dnf install ruby ruby-devel rubygem-rdoc rubygem-bundler rubygems \
                  gcc gcc-c++ git \
                  postgresql postgresql-server postgresql-contrib libpq-devel \
                  perl-podlators ImageMagick libffi-devel gd-devel libarchive-devel \
-                 bzip2-devel nodejs-yarn
+                 bzip2-devel nodejs-yarn vips-devel
 ```
 
 If you didn't already have PostgreSQL installed then create a PostgreSQL instance and start the server:

config/initializers/new_framework_defaults_7_0.rb

@@ -80,7 +80,7 @@ Rails.application.config.action_controller.raise_on_open_redirects = true
 # generate variants to use image processing macros and ruby-vips
 # operations. See the upgrading guide for detail on the changes required.
 # The `:mini_magick` option is not deprecated; it's fine to keep using it.
-# Rails.application.config.active_storage.variant_processor = :vips
+Rails.application.config.active_storage.variant_processor = :vips
 
 # If you're upgrading and haven't set `cookies_serializer` previously, your cookie serializer
 # was `:marshal`. Convert all cookies to JSON, using the `:hybrid` formatter.

script/vagrant/setup/provision.sh

@@ -19,7 +19,7 @@ apt-get upgrade -y
 apt-get install -y ruby2.7 libruby2.7 ruby2.7-dev \
                      libmagickwand-dev libxml2-dev libxslt1-dev nodejs yarnpkg \
                      apache2 apache2-dev build-essential git-core firefox-geckodriver \
-                     postgresql postgresql-contrib libpq-dev \
+                     postgresql postgresql-contrib libpq-dev libvips-dev \
                      libsasl2-dev imagemagick libffi-dev libgd-dev libarchive-dev libbz2-dev
 gem2.7 install rake
 gem2.7 install --version "~> 2.1.4" bundler