Add support for WEBSITE_RUN_FROM_PACKAGE {#3497)

Author: mathewc

src/WebJobs.Script.WebHost/Models/HostAssignmentContext.cs

@@ -25,7 +25,11 @@ public string ZipUrl
         {
             get
             {
-                if (Environment.ContainsKey(EnvironmentSettingNames.AzureWebsiteAltZipDeployment))
+                if (Environment.ContainsKey(EnvironmentSettingNames.AzureWebsiteRunFromPackage))
+                {
+                    return Environment[EnvironmentSettingNames.AzureWebsiteRunFromPackage];
+                }
+                else if (Environment.ContainsKey(EnvironmentSettingNames.AzureWebsiteAltZipDeployment))
                 {
                     return Environment[EnvironmentSettingNames.AzureWebsiteAltZipDeployment];
                 }

src/WebJobs.Script/Environment/EnvironmentExtensions.cs

@@ -30,7 +30,9 @@ public static bool IsRemoteDebuggingEnabled(this IEnvironment environment)
 
         public static bool IsZipDeployment(this IEnvironment environment)
         {
-            return !string.IsNullOrEmpty(environment.GetEnvironmentVariable(EnvironmentSettingNames.AzureWebsiteZipDeployment));
+            return !string.IsNullOrEmpty(environment.GetEnvironmentVariable(EnvironmentSettingNames.AzureWebsiteZipDeployment)) ||
+                !string.IsNullOrEmpty(environment.GetEnvironmentVariable(EnvironmentSettingNames.AzureWebsiteAltZipDeployment)) ||
+                !string.IsNullOrEmpty(environment.GetEnvironmentVariable(EnvironmentSettingNames.AzureWebsiteRunFromPackage));
         }
 
         public static bool FileSystemIsReadOnly(this IEnvironment environment)

src/WebJobs.Script/Environment/EnvironmentSettingNames.cs

@@ -11,8 +11,6 @@ public static class EnvironmentSettingNames
         public const string AzureWebsiteOwnerName = "WEBSITE_OWNER_NAME";
         public const string AzureWebsiteInstanceId = "WEBSITE_INSTANCE_ID";
         public const string AzureWebsiteSku = "WEBSITE_SKU";
-        public const string AzureWebsiteZipDeployment = "WEBSITE_USE_ZIP";
-        public const string AzureWebsiteAltZipDeployment = "WEBSITE_RUN_FROM_ZIP";
         public const string RemoteDebuggingPort = "REMOTEDEBUGGINGPORT";
         public const string AzureWebsitePlaceholderMode = "WEBSITE_PLACEHOLDER_MODE";
         public const string AzureWebsiteHomePath = "HOME";
@@ -40,5 +38,11 @@ public static class EnvironmentSettingNames
 
         public const string ContainerStartContext = "CONTAINER_START_CONTEXT";
         public const string ContainerStartContextSasUri = "CONTAINER_START_CONTEXT_SAS_URI";
+
+        // unfortunately there are 3 versions of this setting that have to be supported
+        // due to renames
+        public const string AzureWebsiteZipDeployment = "WEBSITE_USE_ZIP";
+        public const string AzureWebsiteAltZipDeployment = "WEBSITE_RUN_FROM_ZIP";
+        public const string AzureWebsiteRunFromPackage = "WEBSITE_RUN_FROM_PACKAGE";
     }
 }