swarm: ctx propagation; bmt fixes; pss generic notification framework (#17150)

* cmd/swarm: minor cli flag text adjustments

* swarm/api/http: sticky footer for swarm landing page using flex

* swarm/api/http: sticky footer for error pages and fix for multiple choices

* cmd/swarm, swarm/storage, swarm: fix  mingw on windows test issues

* cmd/swarm: update description of swarm cmd

* swarm: added network ID test

* cmd/swarm: support for smoke tests on the production swarm cluster

* cmd/swarm/swarm-smoke: simplify cluster logic as per suggestion

* swarm: propagate ctx to internal apis (#754)

* swarm/metrics: collect disk measurements

* swarm/bmt: fix io.Writer interface

  * Write now tolerates arbitrary variable buffers
  * added variable buffer tests
  * Write loop and finalise optimisation
  * refactor / rename
  * add tests for empty input

* swarm/pss: (UPDATE) Generic notifications package (#744)

swarm/pss: Generic package for creating pss notification svcs

* swarm: Adding context to more functions

* swarm/api: change colour of landing page in templates

* swarm/api: change landing page to react to enter keypress

4 files changed, 13 insertions, 4 deletions

diff --git a/cmd/swarm/fs_test.go b/cmd/swarm/fs_test.go
index 25705c0a4..0cbf0eb13 100644
--- a/cmd/swarm/fs_test.go
+++ b/cmd/swarm/fs_test.go
@@ -14,6 +14,8 @@
 // You should have received a copy of the GNU General Public License
 // along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
 
+// +build linux darwin freebsd
+
 package main
 
 import (
diff --git a/cmd/swarm/hash.go b/cmd/swarm/hash.go
index c82456b3c..bca4955b1 100644
--- a/cmd/swarm/hash.go
+++ b/cmd/swarm/hash.go
@@ -18,6 +18,7 @@
 package main
 
 import (
+	"context"
 	"fmt"
 	"os"
 
@@ -39,7 +40,7 @@ func hash(ctx *cli.Context) {
 
 	stat, _ := f.Stat()
 	fileStore := storage.NewFileStore(storage.NewMapChunkStore(), storage.NewFileStoreParams())
-	addr, _, err := fileStore.Store(f, stat.Size(), false)
+	addr, _, err := fileStore.Store(context.TODO(), f, stat.Size(), false)
 	if err != nil {
 		utils.Fatalf("%v\n", err)
 	} else {
diff --git a/cmd/swarm/main.go b/cmd/swarm/main.go
index 9877e9150..8e1a69cb2 100644
--- a/cmd/swarm/main.go
+++ b/cmd/swarm/main.go
@@ -143,7 +143,7 @@ var (
 	}
 	SwarmWantManifestFlag = cli.BoolTFlag{
 		Name:  "manifest",
-		Usage: "Automatic manifest upload",
+		Usage: "Automatic manifest upload (default true)",
 	}
 	SwarmUploadDefaultPath = cli.StringFlag{
 		Name:  "defaultpath",
@@ -155,7 +155,7 @@ var (
 	}
 	SwarmUploadMimeType = cli.StringFlag{
 		Name:  "mime",
-		Usage: "force mime type",
+		Usage: "Manually specify MIME type",
 	}
 	SwarmEncryptedFlag = cli.BoolFlag{
 		Name:  "encrypt",
diff --git a/cmd/swarm/swarm-smoke/upload_and_sync.go b/cmd/swarm/swarm-smoke/upload_and_sync.go
index 7f9051e7f..b914eecd8 100644
--- a/cmd/swarm/swarm-smoke/upload_and_sync.go
+++ b/cmd/swarm/swarm-smoke/upload_and_sync.go
@@ -37,8 +37,14 @@ import (
 )
 
 func generateEndpoints(scheme string, cluster string, from int, to int) {
+	if cluster == "prod" {
+		cluster = ""
+	} else {
+		cluster = cluster + "."
+	}
+
 	for port := from; port <= to; port++ {
-		endpoints = append(endpoints, fmt.Sprintf("%s://%v.%s.swarm-gateways.net", scheme, port, cluster))
+		endpoints = append(endpoints, fmt.Sprintf("%s://%v.%sswarm-gateways.net", scheme, port, cluster))
 	}
 
 	if includeLocalhost {