Add Ubuntu 20.04 CI build, reinstate Debian 10 build.

.builds/debian-10-sqlite.yml

@@ -0,0 +1,68 @@
+image: debian/buster
+packages:
+  # Install bootstrap and configure dependencies.
+  - automake
+  - nodejs
+  - npm
+  - python3-dev
+  - virtualenv
+
+  # Install make and runtime dependencies.
+  - python3-alembic
+  - python3-jsonschema
+  - python3-kombu
+  - python3-lxml
+  - python3-migrate
+  - python3-pillow
+  - python3-py
+  - python3-pytest
+  - python3-pytest-xdist
+  - python3-snowballstemmer
+  - python3-sphinx
+  - python3-sphinxcontrib.websupport
+  - python3-webtest
+
+  # Install audio dependencies.
+  - gstreamer1.0-libav
+  - gstreamer1.0-plugins-bad
+  - gstreamer1.0-plugins-base
+  - gstreamer1.0-plugins-good
+  - gstreamer1.0-plugins-ugly
+  - python3-gst-1.0
+  - python3-numpy
+
+  # Install video dependencies.
+  - gir1.2-gst-plugins-base-1.0
+  - gir1.2-gstreamer-1.0
+  - gstreamer1.0-tools
+  - python3-gi
+
+  # Install raw image dependencies.
+  - libexiv2-dev
+  - libboost-python-dev
+
+  # Install document (PDF-only) dependencies.
+  - poppler-utils
+
+  # Install LDAP depedencies.
+  - python3-ldap
+
+  # Install OpenID dependencies.
+  - python3-openid
+
+tasks:
+  - core: |
+      cd mediagoblin
+      git show --oneline --no-patch
+      ./bootstrap.sh
+      ./configure
+      make
+
+      # Install raw image library from PyPI as not available in Debian 10.
+      ./bin/pip install py3exiv2
+
+      # Run the tests, explicitly listing out skipped tests.
+      ./bin/python -m pytest -rs ./mediagoblin/tests --boxed
+
+      # Build the documentation.
+      cd docs && make html

.builds/debian-11-sqlite.yml

@@ -54,13 +54,13 @@ tasks:
       cd mediagoblin
       git show --oneline --no-patch
       ./bootstrap.sh
-      VIRTUALENV_FLAGS='--system-site-packages' ./configure
+      ./configure
       make
 
       # Install additional Sphinx dependencies not in Debian.
       ./bin/pip install sphinxcontrib-applehelp sphinxcontrib-htmlhelp sphinxcontrib-jsmath
 
-      # Install raw image library from PyPI as not available in Debian 10.
+      # Install raw image library from PyPI as not available in Debian 11.
       ./bin/pip install py3exiv2
 
       # Confirm our packages version for later troubleshooting.

.builds/fedora-33-sqlite.yml

@@ -53,10 +53,10 @@ tasks:
       cd mediagoblin
       git show --oneline --no-patch
       ./bootstrap.sh
-      VIRTUALENV_FLAGS='--system-site-packages' ./configure
+      ./configure
       make
 
-      # # Install raw image library from PyPI as not available in Debian 10.
+      # # Install raw image library from PyPI as not available in Debian 11.
       # ./bin/pip install py3exiv2
 
       # Confirm our packages version for later troubleshooting.

.builds/ubuntu-20.04.yml

@@ -0,0 +1,72 @@
+image: ubuntu/20.04
+packages:
+  # Install bootstrap and configure dependencies.
+  - automake
+  - nodejs
+  - npm
+  - python3-dev
+  - virtualenv
+
+  # Install make and runtime dependencies.
+  - python3-lxml
+  - python3-pil
+
+  # Install test and docs dependencies.
+  - python3-pytest
+  - python3-pytest-xdist
+  - python3-snowballstemmer
+  - python3-sphinx
+  - python3-sphinxcontrib.websupport
+  - python3-webtest
+
+  # Install audio dependencies.
+  - gstreamer1.0-libav
+  - gstreamer1.0-plugins-bad
+  - gstreamer1.0-plugins-base
+  - gstreamer1.0-plugins-good
+  - gstreamer1.0-plugins-ugly
+  - python3-gst-1.0
+  - python3-numpy
+
+  # Install video dependencies.
+  - gir1.2-gst-plugins-base-1.0
+  - gir1.2-gstreamer-1.0
+  - gstreamer1.0-tools
+  - python3-gi
+
+  # Install raw image dependencies.
+  - libexiv2-dev
+  - libboost-python-dev
+
+  # Install document (PDF-only) dependencies.
+  - poppler-utils
+
+  # Install LDAP depedencies.
+  - python3-ldap
+
+  # Install OpenID dependencies.
+  - python3-openid
+
+tasks:
+  - core: |
+      cd mediagoblin
+      git show --oneline --no-patch
+      ./bootstrap.sh
+      ./configure
+      make
+
+      # Install additional Sphinx dependencies not in Debian.
+      ./bin/pip install sphinxcontrib-applehelp sphinxcontrib-htmlhelp sphinxcontrib-jsmath
+
+      # Install raw image library from PyPI as not available in Debian 11.
+      ./bin/pip install py3exiv2
+
+      # Confirm our packages version for later troubleshooting.
+      ./bin/python -m pip freeze
+
+      # Run the tests, explicitly listing out skipped tests.
+      ./bin/python -m pytest -rs ./mediagoblin/tests --boxed
+
+      # Build the documentation.
+      cd docs && make html
+