environment-ize configuration

.gitignore

@@ -1,2 +1,3 @@
 /server
 /manager
+*.properties

Makefile

@@ -1,17 +1,26 @@
-.PHONY: up down
+.PHONY: up down run
 
 GOFILES=$(shell find . -name '*.go' -o -name 'go.*')
 STATICFILES=$(shell find . -name '*.js' -o -name '*.css' -o -name '*.html')
 SQLFILES=$(shell find . -name '*.sql')
 
+ifneq (,$(wildcard ./local.properties))
+include local.properties
+export
+endif
+
 build: server manager
 
+run: build
+	./server
+
 server: $(GOFILES) $(STATICFILES)
 	go build -o server ./cmd/serve
 
 manager: $(GOFILES) $(SQLFILES)
 	go build -o manager ./cmd/manage
 
+# dev dependencies
 up:
 	docker compose up -d
 

cmd/serve/main.go

@@ -10,8 +10,17 @@ import (
 	"git.yetaga.in/alazyreader/library/book"
 	"git.yetaga.in/alazyreader/library/database"
 	"git.yetaga.in/alazyreader/library/frontend"
+	"github.com/kelseyhightower/envconfig"
 )
 
+type Config struct {
+	DBUser string
+	DBPass string
+	DBHost string
+	DBPort string
+	DBName string
+}
+
 type Library interface {
 	GetAllBooks(context.Context) ([]book.Book, error)
 }
@@ -54,11 +63,19 @@ func StaticHandler(f fs.FS) http.Handler {
 }
 
 func main() {
+	var c Config
+	err := envconfig.Process("library", &c)
+	if err != nil {
+		log.Fatalln(err)
+	}
 	f, err := frontend.Root()
 	if err != nil {
 		log.Fatalln(err)
 	}
-	lib, err := database.NewMySQLConnection("root", "KigYBNCT9IU5XyB3ehzMLFWyI", "127.0.0.1", "3306", "library")
+	if c.DBUser == "" || c.DBPass == "" || c.DBHost == "" || c.DBPort == "" || c.DBName == "" {
+		log.Fatalf("vars: %+v", c)
+	}
+	lib, err := database.NewMySQLConnection(c.DBUser, c.DBPass, c.DBHost, c.DBPort, c.DBName)
 	if err != nil {
 		log.Fatalln(err)
 	}

go.mod

@@ -2,4 +2,7 @@ module git.yetaga.in/alazyreader/library
 
 go 1.16
 
-require github.com/go-sql-driver/mysql v1.6.0
+require (
+	github.com/go-sql-driver/mysql v1.6.0
+	github.com/kelseyhightower/envconfig v1.4.0
+)

go.sum

@@ -1,2 +1,4 @@
 github.com/go-sql-driver/mysql v1.6.0 h1:BCTh4TKNUYmOmMUcQ3IipzF5prigylS7XXjEkfCHuOE=
 github.com/go-sql-driver/mysql v1.6.0/go.mod h1:DCzpHaOWr8IXmIStZouvnhqoel9Qv2LBy8hT2VhHyBg=
+github.com/kelseyhightower/envconfig v1.4.0 h1:Im6hONhd3pLkfDFsbRgu68RDNkGF1r3dvMUtDTo2cv8=
+github.com/kelseyhightower/envconfig v1.4.0/go.mod h1:cccZRl6mQpaq41TPp5QxidR+Sa3axMbJDNb//FQX6Gg=