expose static binaries in gitlab artifacts again

.gitignore

@@ -10,8 +10,10 @@ target
 # Nix artifacts
 result*
 
-# GitLab CI cache
+# GitLab CI artifacts
 /.gitlab-ci.d
+/grapevine-static-aarch64-unknown-linux-musl
+/grapevine-static-x86_64-unknown-linux-musl
 
 # mdbook artifacts
 /public

.gitlab-ci.yml

@@ -63,6 +63,10 @@ artifacts:
     - if: $CI_PIPELINE_SOURCE == 'merge_request_event'
   script:
     - direnv exec . job artifacts
+  artifacts:
+    paths:
+      - grapevine-static-aarch64-unknown-linux-musl
+      - grapevine-static-x86_64-unknown-linux-musl
 
 pages:
   stage: deploy

bin/job

@@ -4,6 +4,20 @@ job_artifacts() (
     set -euo pipefail
 
     nix-build-and-cache packages
+
+    # Subsequent `nix build` calls should be fast because the above line ensures
+    # the packages have been built already.
+
+    packages=(
+        static-aarch64-unknown-linux-musl
+        static-x86_64-unknown-linux-musl
+    )
+
+    for x in "${packages[@]}"; do
+        nix build ".#$x"
+        cp result/bin/grapevine grapevine-"$x"
+        chmod u+w grapevine-"$x"
+    done
 )
 
 job_ci() (