add conf parser

.gitignore

@@ -18,4 +18,6 @@
 # vendor/
 
 # Go workspace file
-go.work
+go.work
+
+*.yaml

cmd/wp-comment-converter/main.go

@@ -1,5 +1,13 @@
 package main
 
+import (
+	"os"
+
+	"github.com/cyp0633/wp-comment-converter/internal/conf"
+)
+
 func main() {
-	println("Hello World")
+	// read the first cli parameter as confPath
+	confPath := os.Args[1]
+	conf.ParseConf(confPath)
 }

go.mod

@@ -1,3 +1,5 @@
 module github.com/cyp0633/wp-comment-converter
 
 go 1.20
+
+require gopkg.in/yaml.v3 v3.0.1 // indirect

go.sum

@@ -0,0 +1,3 @@
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

internal/conf/conf.go

@@ -0,0 +1,49 @@
+package conf
+
+import (
+	"os"
+
+	"gopkg.in/yaml.v3"
+)
+
+var Conf struct {
+	Old struct {
+		Hostname        string
+		PermalinkPrefix string `yaml:"permalink-prefix"`
+	}
+	New struct {
+		Hostname        string
+		PermalinkPrefix string `yaml:"permalink-prefix"`
+	}
+	OutputPath string `yaml:"output-path"`
+	Auth       struct {
+		Username string
+		Password string
+	}
+}
+
+func ParseConf(confPath string) {
+	// open the file and save as byte stream
+	confBytes, err := os.ReadFile(confPath)
+	if err != nil {
+		panic(err)
+	}
+	err = yaml.Unmarshal(confBytes, &Conf)
+	if err != nil {
+		panic(err)
+	}
+
+	if Conf.Old.PermalinkPrefix[0] != '/' {
+		Conf.Old.PermalinkPrefix = "/" + Conf.Old.PermalinkPrefix
+	}
+	if Conf.New.PermalinkPrefix[0] != '/' {
+		Conf.New.PermalinkPrefix = "/" + Conf.New.PermalinkPrefix
+	}
+
+	if Conf.Old.PermalinkPrefix[len(Conf.Old.PermalinkPrefix)-1] != '/' {
+		Conf.Old.PermalinkPrefix += "/"
+	}
+	if Conf.New.PermalinkPrefix[len(Conf.New.PermalinkPrefix)-1] != '/' {
+		Conf.New.PermalinkPrefix += "/"
+	}
+}

internal/conf/conf_test.go

@@ -0,0 +1,9 @@
+package conf
+
+import "testing"
+
+func TestParseConf(t *testing.T) {
+	confPath := "conf.yaml"
+	ParseConf(confPath)
+	t.Log(Conf)
+}

internal/fetch/fetch.go

@@ -0,0 +1,50 @@
+package fetch
+
+import (
+	"io"
+	"net/http"
+	"strconv"
+
+	"github.com/cyp0633/wp-comment-converter/internal/conf"
+)
+
+type WPComment struct {
+}
+
+func FetchComments() (comments []WPComment) {
+	for page := 1; ; page++ {
+		body := request(page)
+		newComments := parse(body)
+		if len(newComments) < 20 {
+			break
+		}
+		comments = append(comments, newComments...)
+	}
+	return
+}
+
+func request(page int) (body []byte) {
+	url := conf.Conf.Old.Hostname + "/wp-json/wp/v2/comments?per_page=20&page=" + strconv.Itoa(page) + "&context=edit"
+	user := conf.Conf.Auth.Username
+	pass := conf.Conf.Auth.Password
+	client := &http.Client{}
+	req, err := http.NewRequest("GET", url, nil)
+	if err != nil {
+		panic(err)
+	}
+	req.SetBasicAuth(user, pass)
+	resp, err := client.Do(req)
+	if err != nil {
+		panic(err)
+	}
+	defer resp.Body.Close()
+	body, err = io.ReadAll(resp.Body)
+	if err != nil {
+		panic(err)
+	}
+	return
+}
+
+func parse(body []byte) (comments []WPComment) {
+	return
+}