CI: Drop Debian 8, add Debian 10

This uses the updated Debian images which now use codenames instead
of version numbers.

Note that `CFLAGS=-Werror` has been disabled until such time as all
new warnings have been addressed.

.gitlab-ci.yml

@@ -14,7 +14,7 @@ stages:
   - archive
 
 prepare:
-  image: $REGISTRY_HUB:debian-9-mini
+  image: $REGISTRY_HUB:debian-stretch-mini
   stage: prepare
   script:
   - git ls-files | xargs ./tools/style-check.sh
@@ -37,29 +37,15 @@ prepare:
   - ./configure $CONFIGURE_OPTS
   - make -j2 -k $MAKE_FLAGS
 
-compile:debian-8-mini:
-  image: $REGISTRY_HUB:debian-8-mini
-  variables:
-    CONFIGURE_OPTS: "$CONFIGURE_MINI"
-    MAKE_FLAGS: "CFLAGS=-Werror"
-  <<: *compile_definition
-
-compile:debian-8-full:
-  image: $REGISTRY_HUB:debian-8-full
-  variables:
-    CONFIGURE_OPTS: "$CONFIGURE_MINI $CONFIGURE_FULL"
-    MAKE_FLAGS: "CFLAGS=-Werror"
-  <<: *compile_definition
-
 compile:debian-9-mini:
-  image: $REGISTRY_HUB:debian-9-mini
+  image: $REGISTRY_HUB:debian-stretch-mini
   variables:
     CONFIGURE_OPTS: "$CONFIGURE_MINI"
     MAKE_FLAGS: "CFLAGS=-Werror"
   <<: *compile_definition
 
 compile:debian-9-full:
-  image: $REGISTRY_HUB:debian-9-full
+  image: $REGISTRY_HUB:debian-stretch-full
   variables:
     CONFIGURE_OPTS: "$CONFIGURE_MINI $CONFIGURE_FULL"
     MAKE_FLAGS: "CFLAGS=-Werror CXXFLAGS=-Werror"
@@ -75,6 +61,20 @@ compile:debian-9-full:
     - doc/sanei-html
     expire_in: 1 day
 
+compile:debian-10-mini:
+  image: $REGISTRY_HUB:debian-buster-mini
+  variables:
+    CONFIGURE_OPTS: "$CONFIGURE_MINI"
+    #MAKE_FLAGS: "CFLAGS=-Werror"
+  <<: *compile_definition
+
+compile:debian-10-full:
+  image: $REGISTRY_HUB:debian-buster-full
+  variables:
+    CONFIGURE_OPTS: "$CONFIGURE_MINI $CONFIGURE_FULL"
+    #MAKE_FLAGS: "CFLAGS=-Werror"
+  <<: *compile_definition
+
 compile:fedora-29-clang:
   image: $REGISTRY_HUB:fedora-29-clang
   variables:
@@ -94,7 +94,7 @@ compile:alpine-3.10-musl:
   <<: *compile_definition
 
 archive:
-  image: $REGISTRY_HUB:debian-9-full
+  image: $REGISTRY_HUB:debian-stretch-full
   stage: archive
   dependencies:
   - compile:debian-9-full