feat(dfm): install rust/cargo packages

scripts/install-cargo-packages.sh

@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+# Install cargo/rust packages.
+#
+# shellcheck source=shared.sh
+source "$HOME/.dotfiles/scripts/shared.sh"
+
+! have cargo && {
+  msg "cargo could not be found. installing cargo with rustup.rs"
+  curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
+}
+
+packages=(
+  # a subprocess caching utility
+  "bkt"
+  # a structural diff that understands syntax
+  "difftastic"
+)
+
+for pkg in "${packages[@]}"; do
+  # Trim spaces
+  pkg=${pkg// /}
+  # Skip comments
+  if [[ ${pkg:0:1} == "#" ]]; then continue; fi
+
+  cargo install $pkg
+
+  echo ""
+done