mod(taskwarrior): complete push implementation

Currently the merging process is not working entirely as I would
expect. There are no checks for actual changes between the local version
and the server version. WIP for #3. Configuration file created with
corresponding values like, user name and access code, which are - for
obvious reasons - not commited.

internal/gitea/gitea.go

@@ -1,16 +1,33 @@
 package gitea
 
+import (
+	"encoding/json"
+	"fmt"
+	"os"
+)
+
 var API_PATH = "/api/v1"
 
 type Gitea struct {
-	base_url string
+	Base_url    string `json:"base_url"`
+	User_name   string `json:"user_name"`
+	Access_code string `json:"access_code"`
 }
 
-func NewGitea(base_url string) (gitea Gitea) {
-	gitea.base_url = base_url
+func NewGitea() (gitea Gitea) {
+	configJson, err := os.ReadFile("./configs/gitw.json")
+	if err != nil {
+		fmt.Fprintln(os.Stderr, err)
+		os.Exit(-1)
+	}
+	err = json.Unmarshal(configJson, &gitea)
+	if err != nil {
+		fmt.Fprintln(os.Stderr, err)
+		os.Exit(-1)
+	}
 	return
 }
 
 func (gitea *Gitea) Url() string {
-	return gitea.base_url + API_PATH
+	return gitea.Base_url + API_PATH
 }