ci: standardize apt-get update/install

General changes:

* Use a single -q on update, as the output is not too long
* Use a single -q on install, to show all packages at once

GitLab-specific changes:

* Use `DEBIAN_FRONTEND=noninteractive` to reduce noise
* Use --no-install-recommends to avoid installing unnecessary packages
* Filter out uninteresting lines on install

Note: `DEBIAN_FRONTEND` does not appear to be needed in the default
GitHub runner container and not many packages are currently being
downloaded/installed in them, so do the above changes only jobs that use
custom Docker images.

.gitlab-ci.yml

@@ -8,11 +8,14 @@
 
 build_ubuntu_package:
     image: ubuntu:rolling
+    variables:
+        DEBIAN_FRONTEND: noninteractive
     script:
-        - apt-get update -qq
+        - apt-get update -qy
         - >
-            DEBIAN_FRONTEND=noninteractive apt-get install -y -qq
-            build-essential lintian libapparmor-dev pkg-config gawk
+            apt-get install --no-install-recommends -qy
+            build-essential fakeroot lintian libapparmor-dev pkg-config gawk
+            | grep -Ev '^(Selecting|Preparing to unpack|Unpacking)'
         - ./ci/printenv.sh
         - ./configure || (cat config.log; exit 1)
         - make deb
@@ -21,11 +24,14 @@ build_ubuntu_package:
 
 build_debian_package:
     image: debian:buster
+    variables:
+        DEBIAN_FRONTEND: noninteractive
     script:
-        - apt-get update -qq
+        - apt-get update -qy
         - >
-            apt-get install -y -qq
-            build-essential lintian libapparmor-dev pkg-config gawk
+            apt-get install --no-install-recommends -qy
+            build-essential fakeroot lintian libapparmor-dev pkg-config gawk
+            | grep -Ev '^(Selecting|Preparing to unpack|Unpacking)'
         - ./ci/printenv.sh
         - ./configure || (cat config.log; exit 1)
         - make deb
@@ -68,11 +74,14 @@ build_src_package:
 
 build_no_apparmor:
     image: ubuntu:latest
+    variables:
+        DEBIAN_FRONTEND: noninteractive
     script:
-        - apt-get update -qq
+        - apt-get update -qy
         - >
-            DEBIAN_FRONTEND=noninteractive apt-get install -y -qq
-            build-essential lintian pkg-config gawk
+            apt-get install --no-install-recommends -qy
+            build-essential fakeroot lintian pkg-config gawk
+            | grep -Ev '^(Selecting|Preparing to unpack|Unpacking)'
         - ./ci/printenv.sh
         - ./configure || (cat config.log; exit 1)
         - make dist
@@ -86,6 +95,7 @@ debian_ci:
     variables:
         DEBFULLNAME: "$GITLAB_USER_NAME"
         DEBEMAIL: "$GITLAB_USER_EMAIL"
+        DEBIAN_FRONTEND: noninteractive
     before_script:
         - git checkout -B ci_build "$CI_COMMIT_SHA"
         - gitlab-ci-enable-sid
@@ -95,7 +105,7 @@ debian_ci:
             deb-src http://deb.debian.org/debian sid main
             deb-src http://deb.debian.org/debian experimental main
             EOF
-        - apt-get update
+        - apt-get update -qy
         - git config user.name "$DEBFULLNAME"
         - git config user.email "$DEBEMAIL"
         - |
@@ -116,7 +126,7 @@ debian_ci:
         - git commit -m 'add debian/'
         - export CI_COMMIT_SHA="$(git rev-parse HEAD)"
     script:
-        - apt-get --no-install-recommends install -y -qq gawk
+        - apt-get install --no-install-recommends -qy gawk
         - ./ci/printenv.sh
         - gitlab-ci-git-buildpackage
         - gitlab-ci-lintian