Add errors throwing and handling

Author: thedoorbell

bin/page-loader.js

@@ -11,7 +11,14 @@ program
   .option('-o, --output [dir]', 'output dir', process.cwd())
   .action((url, options) => {
     downloadPage(url, options.output)
-      .then(filePath => console.log(filePath))
+      .then((filePath) => {
+        console.log(filePath)
+        process.exit(0)
+      })
+      .catch((err) => {
+        console.error(err.message)
+        process.exit(1)
+      })
   })
 
 program.parse()

src/downloadFiles.js

@@ -42,6 +42,10 @@ const downloadFiles = ($, url, filesDirPath, selector, attr) => {
             }
           })
         })
+        .catch((err) => {
+          log('failed to download %s: %s', absLink.href, err.message)
+          throw new Error(`Cant load file ${absLink.href}`)
+        })
     }),
     ))
 }

src/getData.js

@@ -24,5 +24,9 @@ axiosDebugLog({
 const getData = url => axios
   .get(url, { responseType: 'arraybuffer' })
   .then(response => response.data)
+  .catch((err) => {
+    log(`Error: ${err.message}`)
+    throw new Error(`Cant get ${url} - ${err.message}`)
+  })
 
 export default getData

src/index.js

@@ -49,9 +49,14 @@ const downloadPage = (url, outputDir) => {
       return filePath
     })
     .catch((err) => {
-      // console.error('Full error:', err)
       log('error: %s', err.message)
-      throw new Error(`Error: ${err.message}`)
+      if (err.code === 'ENOENT') {
+        throw new Error(`ERROR: No such output directory - ${outputDir}`)
+      }
+      if (err.code === 'EACCES') {
+        throw new Error(`ERROR: No access to output directory - ${outputDir}`)
+      }
+      throw new Error(`ERROR: ${err.message}`)
     })
 }