fix(docz-core): prevent crash when not have cache

Author: pedronauck

packages/docz-core/src/DataServer.ts

@@ -39,7 +39,7 @@ export class DataServer {
 
   constructor(server?: any, port?: number, host?: string) {
     this.states = new Set()
-    this.cached = fs.readJsonSync(paths.db)
+    this.cached = fs.readJsonSync(paths.db, { throws: false })
     this.state = {}
 
     if (server) {

packages/docz-core/src/commands/build.ts

@@ -19,8 +19,8 @@ export const build = async (args: Config) => {
   try {
     dataServer.register([states.entries(config), states.config(config)])
 
-    await dataServer.init()
     await Entries.writeApp(config)
+    await dataServer.init()
 
     await run('onPreBuild')
     await bundler.build(await bundler.getConfig(env))

packages/docz-core/src/commands/dev.ts

@@ -35,9 +35,9 @@ export const dev = async (args: Config) => {
   try {
     dataServer.register([states.entries(newConfig), states.config(newConfig)])
 
+    await Entries.writeApp(newConfig, true)
     await dataServer.init()
     await dataServer.listen()
-    await Entries.writeApp(newConfig, true)
   } catch (err) {
     logger.fatal('Failed to process your server:', err)
     process.exit(1)