feat(cursor): improve setup script and fix issue with installing extensions

cursor/setup.sh

@@ -14,6 +14,9 @@ CONFIG_SOURCES=(
 # Detect current script directory.
 SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 
+# Extensions lockfile path
+EXTENSIONS_LOCK="${SCRIPT_DIR}/extensions.lock"
+
 # ==============================================================================
 # Help
 # ==============================================================================
@@ -116,11 +119,10 @@ find_cursor_cmd() {
   echo "${cursor_cmd}"
 }
 
-# Dump installed extensions to extensions.txt
+# Dump installed extensions to extensions.lock
 do_dump_extensions() {
   local cursor_cmd
   cursor_cmd="$(find_cursor_cmd)"
-  local extensions_file="${SCRIPT_DIR}/extensions.txt"
   local current_date
   current_date="$(date)"
 
@@ -128,31 +130,102 @@ do_dump_extensions() {
     echo "# Cursor Extensions"
     echo "# Generated on ${current_date}"
     echo
-    "${cursor_cmd}" --list-extensions
-  } >"${extensions_file}"
+    "${cursor_cmd}" --list-extensions --show-versions
+  } >"${EXTENSIONS_LOCK}"
 
-  echo "Extensions list dumped to ${extensions_file}"
+  echo "Extensions list dumped to ${EXTENSIONS_LOCK}"
 }
 
-# Install extensions from extensions.txt
+# Global variable to cache installed extensions
+_INSTALLED_EXTENSIONS=""
+
+# Check if extension is already installed with exact version
+is_extension_installed() {
+  local cursor_cmd="$1"
+  local extension="$2"
+  local version="$3"
+
+  # Build cache if not already built
+  if [[ -z "${_INSTALLED_EXTENSIONS}" ]]; then
+    _INSTALLED_EXTENSIONS="$("${cursor_cmd}" --list-extensions --show-versions)"
+  fi
+
+  # Check if extension@version exists in cached list
+  echo "${_INSTALLED_EXTENSIONS}" | grep -q "^${extension}@${version}$"
+}
+
+# Download and install a single extension.
+#
+# This is needed for cursor right now as installing an extension based on its
+# ID yields a signature error. But installing from a .vsix file works fine.
+download_and_install_extension() {
+  local cursor_cmd="$1"
+  local extension="$2"
+  local version="$3"
+  local extensions_dir="$4"
+
+  # Check if already installed with correct version
+  if is_extension_installed "${cursor_cmd}" "${extension}" "${version}"; then
+    echo "Extension ${extension}@${version} is already installed, skipping"
+    return 0
+  fi
+
+  local vsix_path="${extensions_dir}/${extension}@${version}.vsix"
+
+  # Create extensions directory if it doesn't exist
+  mkdir -p "${extensions_dir}"
+
+  # If .vsix doesn't exist, download it
+  if [[ ! -f "${vsix_path}" ]]; then
+    local publisher_id="${extension%%.*}"
+    local extension_id="${extension#*.}"
+    local vsix_url="https://marketplace.visualstudio.com/_apis/public/gallery/publishers/${publisher_id}/vsextensions/${extension_id}/${version}/vspackage"
+
+    echo "Downloading ${extension}@${version}.vsix..."
+    echo "  - URL: ${vsix_url}"
+    if ! curl --compressed -L -o "${vsix_path}" "${vsix_url}"; then
+      echo "Failed to download ${extension}@${version}.vsix"
+      return 1
+    fi
+  fi
+
+  # Install the extension from .vsix file
+  echo "Installing extension from ${vsix_path}"
+  if ! "${cursor_cmd}" --install-extension "${vsix_path}"; then
+    echo "Failed to install ${extension}@${version}"
+    return 1
+  fi
+
+  # Clean up the .vsix file after successful installation
+  rm "${vsix_path}"
+  return 0
+}
+
+# Install extensions from extensions.lock
 do_install_extensions() {
   local cursor_cmd
   cursor_cmd="$(find_cursor_cmd)"
-  local extensions_file="${SCRIPT_DIR}/extensions.txt"
+  local extensions_dir="${SCRIPT_DIR}/cache/extensions"
 
-  if [[ ! -f "${extensions_file}" ]]; then
-    echo "Error: ${extensions_file} not found"
+  if [[ ! -f "${EXTENSIONS_LOCK}" ]]; then
+    echo "Error: ${EXTENSIONS_LOCK} not found"
     exit 1
   fi
 
-  # Read extensions file, skip comments and empty lines
+  # Process each extension
   while IFS= read -r line; do
     if [[ -n "${line}" && ! "${line}" =~ ^[[:space:]]*# ]]; then
-      echo "Installing extension: ${line}"
-      "${cursor_cmd}" --install-extension "${line}"
-    fi
-  done <"${extensions_file}"
+      extension="${line%@*}"
+      version="${line#*@}"
 
+      if ! download_and_install_extension "${cursor_cmd}" "${extension}" "${version}" "${extensions_dir}"; then
+        echo "Warning: Failed to install ${extension}@${version}"
+      fi
+    fi
+  done <"${EXTENSIONS_LOCK}"
+
+  # Clean up extensions directory if empty
+  rmdir "${extensions_dir}" 2>/dev/null || true
   echo "Extensions installation complete!"
 }