Migrating to go-envconfig

Migrates to go-envconfig so the same environment variable parsing
library is used.

cdh.go

@@ -28,14 +28,14 @@ import (
 	"path/filepath"
 	"strings"
 
-	"github.com/caarlos0/env/v11"
 	"github.com/miekg/dns"
+	"github.com/sethvargo/go-envconfig"
 	gcdns "google.golang.org/api/dns/v1"
 	"google.golang.org/api/option"
 )
 
 type config struct {
-	Domains []string `env:"RENEWED_DOMAINS" envSeparator:" "`
+	Domains []string `env:"RENEWED_DOMAINS, delimiter= "`
 	Cert    string   `env:"RENEWED_LINEAGE"`
 }
 
@@ -196,12 +196,15 @@ func main() {
 
 	var err error
 
+	ctx := context.Background()
+
 	cfg := config{}
-	err = env.Parse(&cfg)
-	if err != nil {
+	if err = envconfig.Process(ctx, &cfg); err != nil {
 		log.Fatal(err)
 	}
 
+	log.Println(cfg)
+
 	domains, err := readCert(cfg.Cert)
 	if err != nil {
 		log.Fatal(err)

go.mod

@@ -1,8 +1,8 @@
 module github.com/mys721tx/cdh
 
 require (
-	github.com/caarlos0/env/v11 v11.3.1
 	github.com/miekg/dns v1.1.62
+	github.com/sethvargo/go-envconfig v1.1.0
 	google.golang.org/api v0.214.0
 )
 

go.sum

@@ -4,8 +4,6 @@ cloud.google.com/go/auth/oauth2adapt v0.2.6 h1:V6a6XDu2lTwPZWOawrAa9HUK+DB2zfJyT
 cloud.google.com/go/auth/oauth2adapt v0.2.6/go.mod h1:AlmsELtlEBnaNTL7jCj8VQFLy6mbZv0s4Q7NGBeQ5E8=
 cloud.google.com/go/compute/metadata v0.6.0 h1:A6hENjEsCDtC1k8byVsgwvVcioamEHvZ4j01OwKxG9I=
 cloud.google.com/go/compute/metadata v0.6.0/go.mod h1:FjyFAW1MW0C203CEOMDTu3Dk1FlqW3Rga40jzHL4hfg=
-github.com/caarlos0/env/v11 v11.3.1 h1:cArPWC15hWmEt+gWk7YBi7lEXTXCvpaSdCiZE2X5mCA=
-github.com/caarlos0/env/v11 v11.3.1/go.mod h1:qupehSf/Y0TUTsxKywqRt/vJjN5nz6vauiYEUUr8P4U=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/felixge/httpsnoop v1.0.4 h1:NFTV2Zj1bL4mc9sqWACXbQFVBBg2W3GPvqp8/ESS2Wg=
@@ -31,6 +29,8 @@ github.com/miekg/dns v1.1.62 h1:cN8OuEF1/x5Rq6Np+h1epln8OiyPWV+lROx9LxcGgIQ=
 github.com/miekg/dns v1.1.62/go.mod h1:mvDlcItzm+br7MToIKqkglaGhlFMHJ9DTNNWONWXbNQ=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/sethvargo/go-envconfig v1.1.0 h1:cWZiJxeTm7AlCvzGXrEXaSTCNgip5oJepekh/BOQuog=
+github.com/sethvargo/go-envconfig v1.1.0/go.mod h1:JLd0KFWQYzyENqnEPWWZ49i4vzZo/6nRidxI8YvGiHw=
 github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=
 github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
 go.opentelemetry.io/auto/sdk v1.1.0 h1:cH53jehLUN6UFLY71z+NDOiNJqDdPRaXzTel0sJySYA=