Adding ability to specify the maximum download concurrency for the download missing episodes functionality. Defaults to `5` (the current hardcoded value).

client/settings.html

@@ -104,6 +104,10 @@
             <span class="label-body">Base URL (if accessing Podgrab using a URL. Without trailing /. Leave empty if not using or unsure.)</span>
             <input type="url" class="u-full-width"  name="baseUrl" v-model="baseUrl">
         </label>
+        <label for="maxDownloadConcurrency">
+            <input type="number" name="maxDownloadConcurrency" v-model="maxDownloadConcurrency">
+            <span class="label-body">Limit the number of podcasts that can be downloaded simultaneously.</span>
+        </label>
         
       
         <input type="submit" value="Save" class="button">
@@ -181,6 +185,7 @@ var app = new Vue({
             downloadEpisodeImages:self.downloadEpisodeImages,
             generateNFOFile:self.generateNFOFile,
             dontDownloadDeletedFromDisk:self.dontDownloadDeletedFromDisk,
+            maxDownloadConcurrency:self.maxDownloadConcurrency,
             baseUrl:self.baseUrl,
         })
         .then(function(response){
@@ -225,6 +230,7 @@ var app = new Vue({
     downloadEpisodeImages:{{.setting.DownloadEpisodeImages }},
     generateNFOFile:{{ .setting.GenerateNFOFile }},
     dontDownloadDeletedFromDisk:{{ .setting.DontDownloadDeletedFromDisk }},
+    maxDownloadConcurrency:{{ .setting.maxDownloadConcurrency }},
     baseUrl: {{ .setting.BaseUrl }},
   },
 

controllers/pages.go

@@ -31,6 +31,7 @@ type SettingModel struct {
 	GenerateNFOFile               bool   `form:"generateNFOFile" json:"generateNFOFile" query:"generateNFOFile"`
 	DontDownloadDeletedFromDisk   bool   `form:"dontDownloadDeletedFromDisk" json:"dontDownloadDeletedFromDisk" query:"dontDownloadDeletedFromDisk"`
 	BaseUrl                       string `form:"baseUrl" json:"baseUrl" query:"baseUrl"`
+	MaxDownloadConcurrency        bool   `form:"maxDownloadConcurrency" json:"maxDownloadConcurrency" query:"maxDownloadConcurrency"`
 }
 
 var searchOptions = map[string]string{

db/podcast.go

@@ -87,6 +87,7 @@ type Setting struct {
 	GenerateNFOFile               bool `gorm:"default:false"`
 	DontDownloadDeletedFromDisk   bool `gorm:"default:false"`
 	BaseUrl                       string
+	MaxDownloadConcurrency        int `gorm:"default:5"`
 }
 type Migration struct {
 	Base

service/podcastService.go

@@ -537,7 +537,7 @@ func DownloadMissingEpisodes() error {
 			SetPodcastItemAsDownloaded(item.ID, url)
 		}(item, *setting)
 
-		if index%5 == 0 {
+		if index%setting.MaxDownloadConcurrency == 0 {
 			wg.Wait()
 		}
 	}
@@ -764,7 +764,7 @@ func GetSearchFromPodcastIndex(pod *podcastindex.Podcast) *model.CommonSearchRes
 
 func UpdateSettings(downloadOnAdd bool, initialDownloadCount int, autoDownload bool,
 	appendDateToFileName bool, appendEpisodeNumberToFileName bool, darkMode bool, downloadEpisodeImages bool,
-	generateNFOFile bool, dontDownloadDeletedFromDisk bool, baseUrl string) error {
+	generateNFOFile bool, dontDownloadDeletedFromDisk bool, baseUrl string, maxDownloadConcurrency int) error {
 	setting := db.GetOrCreateSetting()
 
 	setting.AutoDownload = autoDownload
@@ -777,6 +777,7 @@ func UpdateSettings(downloadOnAdd bool, initialDownloadCount int, autoDownload b
 	setting.GenerateNFOFile = generateNFOFile
 	setting.DontDownloadDeletedFromDisk = dontDownloadDeletedFromDisk
 	setting.BaseUrl = baseUrl
+	setting.MaxDownloadConcurrency = maxDownloadConcurrency
 
 	return db.UpdateSettings(setting)
 }