Return artist indexes in lexigraphical order.

go.mod

@@ -2,6 +2,7 @@ module github.com/sentriz/gonic
 
 require (
 	cloud.google.com/go v0.37.1 // indirect
+	github.com/aclements/go-gg v0.0.0-20170323211221-abd1f791f5ee
 	github.com/denisenkom/go-mssqldb v0.0.0-20190315220205-a8ed825ac853 // indirect
 	github.com/dhowden/tag v0.0.0-20181104225729-a9f04c2798ca
 	github.com/erikstmartin/go-testdb v0.0.0-20160219214506-8d10e4a1bae5 // indirect

go.sum

@@ -7,6 +7,8 @@ git.apache.org/thrift.git v0.0.0-20180902110319-2566ecd5d999/go.mod h1:fPE2ZNJGy
 git.apache.org/thrift.git v0.12.0/go.mod h1:fPE2ZNJGynbRyZ4dJvy6G277gSllfV2HJqblrnkyeyg=
 github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/aclements/go-gg v0.0.0-20170323211221-abd1f791f5ee h1:KJgh99JlYRhfgHtb7XyhAZSJMdfkjVmo3PP7XO1/HO8=
+github.com/aclements/go-gg v0.0.0-20170323211221-abd1f791f5ee/go.mod h1:55qNq4vcpkIuHowELi5C8e+1yUHtoLoOUR9QU5j7Tes=
 github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf h1:qet1QNfXsQxTZqLG4oE62mJzwPIB8+Tee4RNCL9ulrY=
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=

server/handler/handler_sub_by_tags.go

@@ -3,6 +3,7 @@ package handler
 import (
 	"fmt"
 	"net/http"
+	"sort"
 	"strings"
 
 	"github.com/jinzhu/gorm"
@@ -30,6 +31,9 @@ func (c *Controller) GetArtists(w http.ResponseWriter, r *http.Request) {
 		index.Artists = append(index.Artists,
 			makeArtistFromArtist(&artist))
 	}
+	sort.Slice(indexes.List[:], func(i, j int) bool {
+		return indexes.List[i].Name < indexes.List[j].Name
+	})
 	sub := subsonic.NewResponse()
 	sub.Artists = &indexes
 	respond(w, r, sub)