Initial commit with config file parsing

.gitignore

@@ -0,0 +1,21 @@
+# If you prefer the allow list template instead of the deny list, see community template:
+# https://github.com/github/gitignore/blob/main/community/Golang/Go.AllowList.gitignore
+#
+# Binaries for programs and plugins
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+
+# Test binary, built with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out
+
+# Dependency directories (remove the comment below to include it)
+# vendor/
+
+# Go workspace file
+go.work

go.mod

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+module github.com/restitux/ikinuki-server
+
+go 1.18
+
+require github.com/pelletier/go-toml/v2 v2.0.0-beta.8

go.sum

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+github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/pelletier/go-toml/v2 v2.0.0-beta.8 h1:dy81yyLYJDwMTifq24Oi/IslOslRrDSb3jwDggjz3Z0=
+github.com/pelletier/go-toml/v2 v2.0.0-beta.8/go.mod h1:r9LEWfGN8R5k0VXJ+0BkIe7MYkRdwZOjgMj2KwnJFUo=
+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/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.7.1 h1:5TQK59W5E3v0r2duFAb7P95B6hEeOyEnHRa8MjYSMTY=
+github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

main.go

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+package main
+
+import (
+	"fmt"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+	toml "github.com/pelletier/go-toml/v2"
+)
+
+type Config struct {
+	Address string
+	Port int
+	//Age        int
+	//Cats       []string
+	//Pi         float64
+	//Perfection []int
+	//DOB        time.Time // requires `import time`
+}
+
+
+func get_config() (Config, error) {
+	config := Config{
+		Address: "127.0.0.1",
+		Port: 32520,
+	}
+	// Find config path
+
+	// Linux (XDG base directory specification compliant)
+	xdg_config_home := os.Getenv("XDG_CONFIG_HOME")
+
+	var config_dir string
+
+	if xdg_config_home != "" {
+		config_dir = filepath.Join(xdg_config_home, "ikinuki")
+	} else {
+		home := os.Getenv("HOME")
+		config_dir = filepath.Join(home, ".config", "ikinuki")
+	}
+
+	err := os.MkdirAll(config_dir, 0755)
+	if err != nil {
+		return config, err
+	}
+
+	config_path := filepath.Join(config_dir, "server.toml")
+
+	fmt.Printf("Config File Dir: %v\n", config_path)
+
+	// open file, creating it if empty
+	config_file, err := os.OpenFile(config_path, os.O_RDWR | os.O_CREATE, 0755)
+	defer config_file.Close()
+
+	if err != nil {
+		return config, err
+	}
+
+	fi, err := config_file.Stat()
+	if err != nil {
+		return config, err
+	}
+
+	if fi.Size() == 0 {
+		// if file is empty, write default config
+		data, err := toml.Marshal(config)
+		if err != nil {
+			return config, err
+		}
+		config_file.Write(data)
+		return config, nil
+	} else {
+		// try to parse config file
+		data, err := ioutil.ReadAll(config_file)
+		if err != nil {
+			return config, err
+		}
+		err = toml.Unmarshal(data, &config)
+		if err != nil {
+			return config, err
+		}
+		return config, nil
+	}
+
+}
+
+func main() {
+	config, err := get_config()
+	if err != nil {
+		panic(err)
+	}
+
+	fmt.Printf("Config: %v\n", config)
+
+
+}