cmd/www-golangid: implement socket based activation using systemd

This allow running www-golangid only when activated by systemd in
local environment.

While at it, update all dependencies.

3 files changed, 53 insertions, 20 deletions

diff --git a/cmd/www-golangid/main.go b/cmd/www-golangid/main.go
index 36ca528..dcf2f42 100644
--- a/cmd/www-golangid/main.go
+++ b/cmd/www-golangid/main.go
@@ -11,6 +11,7 @@ import (
 
 	"git.sr.ht/~shulhan/ciigo"
 	"git.sr.ht/~shulhan/pakakeh.go/lib/memfs"
+	"git.sr.ht/~shulhan/pakakeh.go/lib/systemd"
 )
 
 var memFS *memfs.MemFS
@@ -56,6 +57,21 @@ func main() {
 	case cmdEmbed:
 		err = ciigo.GoEmbed(embedOpts)
 	default:
+		listeners, err := systemd.Listeners(true)
+		if err != nil {
+			log.Fatal(err)
+		}
+		if len(listeners) > 1 {
+			log.Fatal(`too many listeners received for activation`)
+		}
+		if len(listeners) == 1 {
+			serveOpts.Listener = listeners[0]
+			gotAddr := serveOpts.Listener.Addr().String()
+			if gotAddr != serveOpts.Address {
+				log.Fatalf(`invalid Listener address, got %s, want %s`,
+					gotAddr, serveOpts.Address)
+			}
+		}
 		err = ciigo.Serve(serveOpts)
 	}
 	if err != nil {
diff --git a/go.mod b/go.mod
index f407bea..f8e0fb9 100644
--- a/go.mod
+++ b/go.mod
@@ -3,17 +3,18 @@ module github.com/golang-id/web
 go 1.24.0
 
 require (
-	git.sr.ht/~shulhan/ciigo v0.15.2
-	git.sr.ht/~shulhan/pakakeh.go v0.60.1
+	git.sr.ht/~shulhan/ciigo v0.15.4-0.20260202094016-5c30c1f5d043
+	git.sr.ht/~shulhan/pakakeh.go v0.60.3-0.20260202092811-1e3bb9be8444
 )
 
 require (
-	git.sr.ht/~shulhan/asciidoctor-go v0.7.1 // indirect
-	github.com/yuin/goldmark v1.7.13 // indirect
+	git.sr.ht/~shulhan/asciidoctor-go v0.7.3-0.20260124143117-f289b7f13a1d // indirect
+	github.com/kr/text v0.2.0 // indirect
+	github.com/yuin/goldmark v1.7.16 // indirect
 	github.com/yuin/goldmark-meta v1.1.0 // indirect
-	golang.org/x/exp v0.0.0-20251125195548-87e1e737ad39 // indirect
-	golang.org/x/net v0.47.0 // indirect
-	golang.org/x/sys v0.38.0 // indirect
+	golang.org/x/exp v0.0.0-20260112195511-716be5621a96 // indirect
+	golang.org/x/net v0.49.0 // indirect
+	golang.org/x/sys v0.40.0 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 )
 
diff --git a/go.sum b/go.sum
index 9a7d8ea..bd894d4 100644
--- a/go.sum
+++ b/go.sum
@@ -1,20 +1,36 @@
-git.sr.ht/~shulhan/asciidoctor-go v0.7.1 h1:xdxLRufyEZA6plVLjrYk5VDBHbbxRmV+1d8RpYbly3k=
-git.sr.ht/~shulhan/asciidoctor-go v0.7.1/go.mod h1:vwv7RMfWN6YAF7j2exJ/K1/ncoYX/tD6FLPgFzjeWfE=
-git.sr.ht/~shulhan/ciigo v0.15.2 h1:WCd2nGMLY3qa8T7zKWW0j+wvNc0xsME22MyW/ejXWTs=
-git.sr.ht/~shulhan/ciigo v0.15.2/go.mod h1:qbr6Y2Z1+d4PVOhmbxvRbaENzoJtF7KeWzQjPzugK7Y=
-git.sr.ht/~shulhan/pakakeh.go v0.60.1 h1:JGke3BIh40tK+d9eHg0jYi/W+GVixWcGwFkAcynSBSY=
-git.sr.ht/~shulhan/pakakeh.go v0.60.1/go.mod h1:8t/pEqWDrEcyr26qR5sXJkF1M5tFhrs3Jzr5aYoZdIo=
+git.sr.ht/~shulhan/asciidoctor-go v0.7.3-0.20260124143117-f289b7f13a1d h1:rdDzlVPJjgR6Jz84VNEAbdvNypMPtH3O6uEbVYb/7Rk=
+git.sr.ht/~shulhan/asciidoctor-go v0.7.3-0.20260124143117-f289b7f13a1d/go.mod h1:cY9Ae1vu3OniC7z29twH1/PMJa7ZSSUqbK9QQM4/bhc=
+git.sr.ht/~shulhan/ciigo v0.15.4-0.20260202094016-5c30c1f5d043 h1:K0bx5Jfn06yzqL+X89obw4n9xG0bjbKdScfu7OEuAtE=
+git.sr.ht/~shulhan/ciigo v0.15.4-0.20260202094016-5c30c1f5d043/go.mod h1:uuFWUqsbwzeoTbluiwNcpoEah+rhHRf1rrqiMO+V86U=
+git.sr.ht/~shulhan/pakakeh.go v0.60.3-0.20260202092811-1e3bb9be8444 h1:mqX+Z2dyfChpFOgt6gV9R5AT3oQN3pw4gMbPQLGm1DI=
+git.sr.ht/~shulhan/pakakeh.go v0.60.3-0.20260202092811-1e3bb9be8444/go.mod h1:1MkKXbLZRHTcnheeSEbRpGztkym4Yxzh90ep+jCxbDc=
+github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
+github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
+github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
+github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
+github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
+github.com/rogpeppe/go-internal v1.11.0 h1:cWPaGQEPrBb5/AsnsZesgZZ9yb1OQ+GOISoDNXVBh4M=
+github.com/rogpeppe/go-internal v1.11.0/go.mod h1:ddIwULY96R17DhadqLgMfk9H9tvdUzkipdSkR5nkCZA=
 github.com/yuin/goldmark v1.7.13 h1:GPddIs617DnBLFFVJFgpo1aBfe/4xcvMc3SB5t/D0pA=
 github.com/yuin/goldmark v1.7.13/go.mod h1:ip/1k0VRfGynBgxOz0yCqHrbZXhcjxyuS66Brc7iBKg=
+github.com/yuin/goldmark v1.7.16 h1:n+CJdUxaFMiDUNnWC3dMWCIQJSkxH4uz3ZwQBkAlVNE=
+github.com/yuin/goldmark v1.7.16/go.mod h1:ip/1k0VRfGynBgxOz0yCqHrbZXhcjxyuS66Brc7iBKg=
 github.com/yuin/goldmark-meta v1.1.0 h1:pWw+JLHGZe8Rk0EGsMVssiNb/AaPMHfSRszZeUeiOUc=
 github.com/yuin/goldmark-meta v1.1.0/go.mod h1:U4spWENafuA7Zyg+Lj5RqK/MF+ovMYtBvXi1lBb2VP0=
-golang.org/x/exp v0.0.0-20251125195548-87e1e737ad39 h1:DHNhtq3sNNzrvduZZIiFyXWOL9IWaDPHqTnLJp+rCBY=
-golang.org/x/exp v0.0.0-20251125195548-87e1e737ad39/go.mod h1:46edojNIoXTNOhySWIWdix628clX9ODXwPsQuG6hsK0=
-golang.org/x/net v0.47.0 h1:Mx+4dIFzqraBXUugkia1OOvlD6LemFo1ALMHjrXDOhY=
-golang.org/x/net v0.47.0/go.mod h1:/jNxtkgq5yWUGYkaZGqo27cfGZ1c5Nen03aYrrKpVRU=
-golang.org/x/sys v0.38.0 h1:3yZWxaJjBmCWXqhN1qh02AkOnCQ1poK6oF+a7xWL6Gc=
-golang.org/x/sys v0.38.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+golang.org/x/exp v0.0.0-20251219203646-944ab1f22d93 h1:fQsdNF2N+/YewlRZiricy4P1iimyPKZ/xwniHj8Q2a0=
+golang.org/x/exp v0.0.0-20251219203646-944ab1f22d93/go.mod h1:EPRbTFwzwjXj9NpYyyrvenVh9Y+GFeEvMNh7Xuz7xgU=
+golang.org/x/exp v0.0.0-20260112195511-716be5621a96 h1:Z/6YuSHTLOHfNFdb8zVZomZr7cqNgTJvA8+Qz75D8gU=
+golang.org/x/exp v0.0.0-20260112195511-716be5621a96/go.mod h1:nzimsREAkjBCIEFtHiYkrJyT+2uy9YZJB7H1k68CXZU=
+golang.org/x/net v0.48.0 h1:zyQRTTrjc33Lhh0fBgT/H3oZq9WuvRR5gPC70xpDiQU=
+golang.org/x/net v0.48.0/go.mod h1:+ndRgGjkh8FGtu1w1FGbEC31if4VrNVMuKTgcAAnQRY=
+golang.org/x/net v0.49.0 h1:eeHFmOGUTtaaPSGNmjBKpbng9MulQsJURQUAfUwY++o=
+golang.org/x/net v0.49.0/go.mod h1:/ysNB2EvaqvesRkuLAyjI1ycPZlQHM3q01F02UY/MV8=
+golang.org/x/sys v0.39.0 h1:CvCKL8MeisomCi6qNZ+wbb0DN9E5AATixKsvNtMoMFk=
+golang.org/x/sys v0.39.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
+golang.org/x/sys v0.40.0 h1:DBZZqJ2Rkml6QMQsZywtnjnnGvHza6BTfYFWY9kjEWQ=
+golang.org/x/sys v0.40.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
 gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
 gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=