message: feat: add env flag when ssg
diff: @@ -8,6 +8,9 @@ export const handleEnv = async (argv: Argv) => {
  const cwd = getCwd()
  process.env.BUILD_TOOL = argv.vite ? 'vite' : 'webpack'
  process.env.OPTIMIZE = (process.env.BUILD_TOOL === 'webpack' && argv.optimize) ? '1' : '0'
  + if (argv.ssg) {
  + process.env.SSG = '1'
  + }
  if (argv.analyze) {
  process.env.GENERATE_ANALYSIS = '1'
  }
  