feat: shell installer (#261)

* shell installer

* fix: cmd

install.sh

@@ -0,0 +1,51 @@
+#!/bin/bash
+#
+# curl -sSL https://raw.githubusercontent.com/rollchains/spawn/release/v0.50/install.sh | bash
+#
+
+VERSION=${1:-"v0.50.10"}
+BASE_URL="https://github.com/rollchains/spawn/releases/download/$VERSION"
+
+ARCH=$(uname -m)
+case $ARCH in
+    x86_64)
+        ARCH="amd64"
+        ;;
+    arm64)
+        ARCH="arm64"
+        ;;
+    *)
+        echo "Unsupported architecture: $ARCH"
+        exit 1
+        ;;
+esac
+
+OS=$(uname -s | tr '[:upper:]' '[:lower:]')
+echo "Downloading spawn $VERSION for $OS/$ARCH..."
+
+VERSION_NORMALIZED=$(echo $VERSION | tr -d 'v')
+
+URL="${BASE_URL}/spawn_${VERSION_NORMALIZED}_${OS}_${ARCH}.tar.gz"
+
+TARGET_DIR="$(go env GOPATH)/bin"
+mkdir -p "$TARGET_DIR"
+
+mkdir -p /tmp/spawn-install
+wget -O "/tmp/spawn-install/spawn.tar.gz" "$URL"
+tar -xvf "/tmp/spawn-install/spawn.tar.gz" -C /tmp/spawn-install
+
+mv "/tmp/spawn-install/spawn" "$TARGET_DIR"
+chmod +x "$TARGET_DIR/spawn"
+
+
+# see if the command spawn is avaliable in `which spawn`
+if [ -x "$(command -v spawn)" ]; then
+    echo "Spawn Installation complete. spawn is now available in $TARGET_DIR. Run the command 'spawn' from any terminal session."
+else
+    echo "Spawn is not available in your PATH"
+    echo "To make spawn available from any terminal session, add the following line to your .bashrc or .zshrc:"
+    echo 'export PATH="$PATH:$(go env GOPATH)/bin"'
+fi
+
+
+rm -rf /tmp/spawn-install

scripts/bump_docs.sh

@@ -8,3 +8,4 @@ findAndReplace() {
 }
 
 findAndReplace "*.md" "s/$OLD_VERSION/$NEW_VERSION/g"
+findAndReplace "install.sh" "s/$OLD_VERSION/$NEW_VERSION/g"