ci: Minor fixes for FreeBSD support

Author: nhooyr

ci/lib.sh

@@ -38,7 +38,7 @@ arch() {
   aarch64)
     echo arm64
     ;;
-  x86_64)
+  x86_64 | amd64)
     echo amd64
     ;;
   *)

ci/steps/release-packages.sh

@@ -7,7 +7,12 @@ main() {
   NODE_VERSION=v12.18.4
   NODE_OS="$(uname | tr '[:upper:]' '[:lower:]')"
   NODE_ARCH="$(uname -m | sed 's/86_64/64/; s/aarch64/arm64/')"
-  curl -L "https://nodejs.org/dist/$NODE_VERSION/node-$NODE_VERSION-$NODE_OS-$NODE_ARCH.tar.gz" | tar -xz
+  if [ "$NODE_OS" = "freebsd" ]; then
+    mkdir -p "$PWD/node-$NODE_VERSION-$NODE_OS-$NODE_ARCH/bin"
+    cp "$(which node)" "$PWD/node-$NODE_VERSION-$NODE_OS-$NODE_ARCH/bin"
+  else
+    curl -L "https://nodejs.org/dist/$NODE_VERSION/node-$NODE_VERSION-$NODE_OS-$NODE_ARCH.tar.gz" | tar -xz
+  fi
   PATH="$PWD/node-$NODE_VERSION-$NODE_OS-$NODE_ARCH/bin:$PATH"
 
   # https://github.com/actions/upload-artifact/issues/38