chore: helper function for preamble

go.mod

@@ -5,7 +5,7 @@ go 1.23.2
 require (
 	github.com/mattn/go-sqlite3 v1.14.24
 	go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp v0.6.0
-	go.yarn.social/lextwt v0.1.5-0.20250327005027-02d9b44de4dd
+	go.yarn.social/lextwt v0.1.5-0.20250328015012-42a9ffb46fea
 )
 
 require (

go.sum

@@ -112,6 +112,8 @@ go.yarn.social/lextwt v0.0.0-20250213063805-7adc6ca07564 h1:z+IAMtxNKWcLNm9nLzJw
 go.yarn.social/lextwt v0.0.0-20250213063805-7adc6ca07564/go.mod h1:JOPCOh+3bHv+BMaFZpKzw6soiXbIlZD5b2f7YKDDjqk=
 go.yarn.social/lextwt v0.1.5-0.20250327005027-02d9b44de4dd h1:Np3zWtQ0GB9WhRFCPblaItLVtdy8Y35QKL+PUvRR/t8=
 go.yarn.social/lextwt v0.1.5-0.20250327005027-02d9b44de4dd/go.mod h1:P36NPegLbhbFa1A0JOLsDyIQcdM0zdmx8kPKACXry4A=
+go.yarn.social/lextwt v0.1.5-0.20250328015012-42a9ffb46fea h1:sbWswg5s8VaXB1hBQDs4KOBRBN2jPKtfFlcCQ3EThZk=
+go.yarn.social/lextwt v0.1.5-0.20250328015012-42a9ffb46fea/go.mod h1:P36NPegLbhbFa1A0JOLsDyIQcdM0zdmx8kPKACXry4A=
 go.yarn.social/types v0.0.0-20250108134258-ed75fa653ede h1:XV9tuDQ605xxH4qIQPRHM1bOa7k0rJZ2RqA5kz2Nun4=
 go.yarn.social/types v0.0.0-20250108134258-ed75fa653ede/go.mod h1:+xnDkQ0T0S8emxWIsvxlCAoyF8gBaj0q81hr/VrKc0c=
 golang.org/x/crypto v0.33.0 h1:IOBPskki6Lysi0lo9qQvbxiQ+FvsCC/YWOecCHAixus=

http.go

@@ -19,6 +19,8 @@ import (
 	"go.sour.is/xt/internal/otel"
 )
 
+const iAmTheWatcher = "I am the Watcher. I am your guide through this vast new twtiverse."
+
 func httpServer(ctx context.Context, app *appState) error {
 	ctx, span := otel.Span(ctx)
 	defer span.End()
@@ -52,27 +54,26 @@ func httpServer(ctx context.Context, app *appState) error {
 		w.Header().Set("Content-Type", "text/plain; charset=utf-8")
 
 		rows, err := db.QueryContext(
-			ctx,
-			`SELECT 
-						feed_id, 
-						hash, 
-						conv, 
+			ctx, `
+				SELECT 
+					feed_id, 
+					hash, 
+					conv, 
+					nick,
+					uri,
+					text
+				FROM twts 
+				JOIN (
+					SELECT
+						feed_id,
 						nick,
-						uri,
-						text
-					FROM twts 
-					JOIN (
-						SELECT
-							feed_id,
-							nick,
-							uri
-						FROM feeds
-					) using (feed_id)
-					WHERE
-						hash = $1 or 
-						conv = $1
-					order by ulid asc`,
-			hash,
+						uri
+					FROM feeds
+				) using (feed_id)
+				WHERE
+					hash = $1 or 
+					conv = $1
+				order by ulid asc`, hash,
 		)
 		if err != nil {
 			span.RecordError(err)
@@ -102,7 +103,7 @@ func httpServer(ctx context.Context, app *appState) error {
 			twts = append(twts, twt)
 		}
 		var preamble lextwt.Comments
-		preamble = append(preamble, lextwt.NewComment("# self = /conv/"+hash))
+		preamble = add(preamble, "self = /conv/%s", hash)
 
 		reg := lextwt.NewTwtRegistry(preamble, twts)
 		reg.WriteTo(w)
@@ -205,20 +206,19 @@ func httpServer(ctx context.Context, app *appState) error {
 				return
 			}
 			twter := types.NewTwter(o.Nick, o.URI)
-			o.Text = strings.ReplaceAll(o.Text, "\n", "\u2028")
 			twt, _ := lextwt.ParseLine(o.Text, &twter)
 			twts = append(twts, twt)
 		}
 		var preamble lextwt.Comments
-		preamble = append(preamble, lextwt.NewComment("# I am the Watcher. I am your guide through this vast new twtiverse."))
-
-		preamble = append(preamble, lextwt.NewComment(fmt.Sprint("# range = 1 ", end)))
-		preamble = append(preamble, lextwt.NewComment("# self = /api/plain/twts"+mkqry(uri, limit, offset)))
+		preamble = add(preamble, iAmTheWatcher)
+		preamble = add(preamble, "")
+		preamble = add(preamble, "range = 1  %d", end)
+		preamble = add(preamble, "self = /api/plain/twts%s", mkqry(uri, limit, offset))
 		if next := offset + int64(len(twts)); next < end {
-			preamble = append(preamble, lextwt.NewComment("# next = /api/plain/twts"+mkqry(uri, limit, next)))
+			preamble = add(preamble, "next = /api/plain/twts%s", mkqry(uri, limit, next))
 		}
 		if prev := offset - int64(limit); prev > 0 {
-			preamble = append(preamble, lextwt.NewComment("# prev = /api/plain/twts"+mkqry(uri, limit, prev)))
+			preamble = add(preamble, "prev = /api/plain/twts%s", mkqry(uri, limit, prev))
 		}
 
 		reg := lextwt.NewTwtRegistry(preamble, twts)
@@ -249,8 +249,10 @@ func httpServer(ctx context.Context, app *appState) error {
 					last_twt_on
 				FROM feeds
 				left join (
-					select feed_id, max(strftime('%Y-%m-%dT%H:%M:%fZ', (substring(text, 1, instr(text, '	')-1)))) last_twt_on
-							from twts group by feed_id
+					select 
+						feed_id, 
+						max(strftime('%Y-%m-%dT%H:%M:%fZ', (substring(text, 1, instr(text, '	')-1)))) last_twt_on
+					from twts group by feed_id
 				) using (feed_id)
 				`+where+`
 				order by nick, uri
@@ -282,7 +284,11 @@ func httpServer(ctx context.Context, app *appState) error {
 				nil,
 			))
 		}
-		reg := lextwt.NewTwtRegistry(nil, twts)
+
+		var preamble lextwt.Comments
+		preamble = add(preamble, iAmTheWatcher)
+
+		reg := lextwt.NewTwtRegistry(preamble, twts)
 		reg.WriteTo(w)
 	})
 
@@ -341,3 +347,10 @@ func mkqry(uri string, limit int, offset int64) string {
 
 	return "?" + strings.Join(qry, "&")
 }
+
+func add(preamble lextwt.Comments, text string, v ...any) lextwt.Comments {
+	if len(v) > 0 {
+		text = fmt.Sprintf(text, v...)
+	}
+	return append(preamble, lextwt.NewComment("# "+text))
+}

internal/env/env.go

@@ -6,7 +6,6 @@ import (
 	"strings"
 )
 
-
 func Default(key, def string) string {
 	if v, ok := os.LookupEnv(key); ok {
 		return v
@@ -17,6 +16,7 @@ func Default(key, def string) string {
 type secret struct {
 	value string
 }
+
 func (s secret) Secret() string {
 	return s.value
 }