cmd: Add build-info command; update CertMagic

cmd/commandfuncs.go

@@ -321,6 +321,26 @@ func cmdVersion(_ Flags) (int, error) {
 	return caddy.ExitCodeSuccess, nil
 }
 
+func cmdBuildInfo(fl Flags) (int, error) {
+	bi, ok := debug.ReadBuildInfo()
+	if !ok {
+		return caddy.ExitCodeFailedStartup, fmt.Errorf("no build information")
+	}
+
+	fmt.Printf("path: %s\n", bi.Path)
+	fmt.Printf("main: %s %s %s\n", bi.Main.Path, bi.Main.Version, bi.Main.Sum)
+	fmt.Println("dependencies:")
+
+	for _, goMod := range bi.Deps {
+		fmt.Printf("%s %s %s", goMod.Path, goMod.Version, goMod.Sum)
+		if goMod.Replace != nil {
+			fmt.Printf(" => %s %s %s", goMod.Replace.Path, goMod.Replace.Version, goMod.Replace.Sum)
+		}
+		fmt.Println()
+	}
+	return caddy.ExitCodeSuccess, nil
+}
+
 func cmdListModules(fl Flags) (int, error) {
 	versions := fl.Bool("versions")
 

cmd/commands.go

@@ -188,6 +188,12 @@ config file; otherwise the default is assumed.`,
 		}(),
 	})
 
+	RegisterCommand(Command{
+		Name:  "build-info",
+		Func:  cmdBuildInfo,
+		Short: "Prints information about this build",
+	})
+
 	RegisterCommand(Command{
 		Name:  "environ",
 		Func:  cmdEnviron,

go.mod

@@ -7,6 +7,7 @@ require (
 	github.com/alecthomas/chroma v0.7.0
 	github.com/andybalholm/brotli v0.0.0-20190821151343-b60f0d972eeb
 	github.com/cenkalti/backoff/v3 v3.1.1 // indirect
+	github.com/decker502/dnspod-go v0.2.0 // indirect
 	github.com/dustin/go-humanize v1.0.0
 	github.com/go-acme/lego/v3 v3.3.0
 	github.com/golang/groupcache v0.0.0-20191002201903-404acd9df4cc
@@ -17,7 +18,7 @@ require (
 	github.com/klauspost/cpuid v1.2.2
 	github.com/kylelemons/godebug v1.1.0 // indirect
 	github.com/lucas-clemente/quic-go v0.14.1
-	github.com/mholt/certmagic v0.9.0
+	github.com/mholt/certmagic v0.9.1
 	github.com/miekg/dns v1.1.25 // indirect
 	github.com/muhammadmuzzammil1998/jsonc v0.0.0-20190906142622-1265e9b150c6
 	github.com/naoina/go-stringutil v0.1.0 // indirect

go.sum

@@ -230,6 +230,8 @@ github.com/mattn/go-tty v0.0.0-20180219170247-931426f7535a/go.mod h1:XPvLUNfbS4f
 github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
 github.com/mholt/certmagic v0.9.0 h1:dYh9sZPDBTcIiPhYM/Qtv3V623/zFH34FmpbrQTpMAc=
 github.com/mholt/certmagic v0.9.0/go.mod h1:91uJzK5K8IWtYQqTi5R2tsxV1pCde+wdGfaRaOZi6aQ=
+github.com/mholt/certmagic v0.9.1 h1:wPzyouOyE+30NIQETJuhTB5ZQWz+0Hy038vaR5WWQDE=
+github.com/mholt/certmagic v0.9.1/go.mod h1:nu8jbsbtwK4205EDH/ZUMTKsfYpJA1Q7MKXHfgTihNw=
 github.com/miekg/dns v1.1.15 h1:CSSIDtllwGLMoA6zjdKnaE6Tx6eVUxQ29LUgGetiDCI=
 github.com/miekg/dns v1.1.15/go.mod h1:W1PPwlIAgtquWBMBEV9nkV9Cazfe8ScdGz/Lj7v3Nrg=
 github.com/miekg/dns v1.1.25 h1:dFwPR6SfLtrSwgDcIq2bcU/gVutB4sNApq2HBdqcakg=