Fix indexes get

Author: matteosuppo

docs/pkgs.html

@@ -10,7 +10,7 @@
 
     <p>An index file contains the info about a core and its tools. You can see an example at <a href="" target="_blank">https://downloads.arduino.cc/packages/package_index.json</a></p>
 
-    <p>index files are saved (with an urlencoded filename) in the folder ~/.arduino-create/indexes</p>
+    <p>index files are saved (with an urlencoded filename) in the folder <code>~/.arduino-create/indexes</code></p>
 
     <textarea cols="100" id="indexesGet">
 fetch('http://localhost:8991/v2/pkgs/indexes')
@@ -31,7 +31,6 @@
         target.innerHTML = res.statusText + "\n";
         return res.json();
     }).then(function (body) {
-        debugger
         target.innerHTML = target.innerHTML + JSON.stringify(body, " ", "  ");
         return;
     })

main.go

@@ -289,7 +289,7 @@ func loop() {
 	r.POST("/update", updateHandler)
 
 	// Mount goa handlers
-	goa := v2.Server()
+	goa := v2.Server(directory)
 	r.Any("/v2/*path", gin.WrapH(goa))
 
 	go func() {

v2/http.go

@@ -3,6 +3,7 @@ package v2
 import (
 	"context"
 	"net/http"
+	"path/filepath"
 
 	docssvr "github.com/arduino/arduino-create-agent/gen/http/docs/server"
 	indexessvr "github.com/arduino/arduino-create-agent/gen/http/indexes/server"
@@ -15,7 +16,7 @@ import (
 	"goa.design/goa/http/middleware"
 )
 
-func Server() http.Handler {
+func Server(home string) http.Handler {
 	mux := goahttp.NewMuxer()
 
 	// Instantiate logger
@@ -25,7 +26,8 @@ func Server() http.Handler {
 
 	// Mount indexes
 	indexesSvc := pkgs.Indexes{
-		Log: logger,
+		Log:    logger,
+		Folder: filepath.Join(home, "indexes"),
 	}
 	indexesEndpoints := indexessvc.NewEndpoints(&indexesSvc)
 	indexesServer := indexessvr.New(indexesEndpoints, mux, goahttp.RequestDecoder, goahttp.ResponseEncoder, errorHandler(logger))

v2/pkgs/indexes.go

@@ -69,6 +69,8 @@ func (c *Indexes) Get(ctx context.Context, uri string) (index Index, err error)
 
 // List reads from the Indexes Folder and returns the indexes that have been downloaded
 func (c *Indexes) List(context.Context) ([]string, error) {
+	// Create folder if it doesn't exist
+	_ = os.MkdirAll(c.Folder, 0755)
 	// Read files
 	files, err := ioutil.ReadDir(c.Folder)
 	if err != nil {