Set up automated updates for GitHub-sourced binaries

.local/share/github-versions/dolt

@@ -0,0 +1,12 @@
+#! /usr/bin/sh
+
+package=dolt
+repo=dolthub/dolt
+resource=dolt-linux-amd64.tar.gz
+
+install_dolt() {
+    tar xz --directory="$(systemd-path user-binaries)" --strip-components=2 dolt-linux-amd64/bin/dolt
+    chmod 550 "$(systemd-path user-binaries)"/dolt
+}
+
+github_update "${package}" "${repo}" "${resource}" install_dolt

.local/share/github-versions/rust-analyzer

@@ -0,0 +1,14 @@
+#! /usr/bin/sh
+
+package=rust-analyzer
+repo=rust-lang/rust-analyzer
+resource=rust-analyzer-x86_64-unknown-linux-gnu.gz
+
+install_rust_analyzer() {
+    tempfile="$(mktemp)"
+    gunzip --to-stdout - > "${tempfile}"
+    chmod 550 "${tempfile}"
+    mv "${tempfile}" "$(systemd-path user-binaries)"/rust-analyzer
+}
+
+github_update "${package}" "${repo}" "${resource}" install_rust_analyzer