Merge pull request #1 from danny-molnar/dm-feat-core-logic

Feat: Implement core logic

.gitignore

@@ -19,3 +19,6 @@
 
 # Go workspace file
 go.work
+
+#  Executable files
+gitorchk

go.mod

@@ -0,0 +1,3 @@
+module github.com/danny-molnar/gitorchk
+
+go 1.22

main.go

@@ -0,0 +1,43 @@
+package main
+
+import (
+	"fmt"
+	"os/exec"
+	"strings"
+)
+
+func main() {
+	// Verify Git repository
+	if _, err := exec.Command("git", "rev-parse").Output(); err != nil {
+		fmt.Println("Error: Not inside a Git repository.")
+		return
+	}
+
+	// Fetch latest remote information
+	fmt.Println("Fetching latest information from remote...")
+	if _, err := exec.Command("git", "fetch").Output(); err != nil {
+		fmt.Println("Error: Unable to fetch latest information from remote.")
+		return
+	}
+
+	// Determine branch status
+	output, err := exec.Command("git", "rev-list", "--left-right", "--count", "main...origin/main").Output()
+	if err != nil {
+		fmt.Println("Error: Unable to determine branch status.")
+		return
+	}
+
+	// Parse output
+	counts := strings.Fields(string(output))
+	if len(counts) != 2 {
+		fmt.Println("Error: Unable to process comparison results.")
+	}
+
+	// Prompt for action
+	if counts[1] != "0" {
+		fmt.Printf("Your local 'main' branch iis behind by %s commits.\n", counts[1])
+		fmt.Println("Consider rebasig your work with the latest 'main' branch using 'git rebase' or merging updates using 'git merge'.")
+	} else {
+		fmt.Println("Your local 'main' branch is up-to-date with 'origin/main'.")
+	}
+}

main_test.go

@@ -0,0 +1,22 @@
+package main
+
+import (
+	"os/exec"
+	"testing"
+)
+
+func CheckIfGitRepo() (bool, error) {
+	cmd := exec.Command("git", "rev-parse", "--is-inside-work-tree")
+	err := cmd.Run()
+	if err != nil {
+		return false, err
+	}
+	return true, nil
+}
+
+func TestCheckIfGitRepo(t *testing.T) {
+	_, err := CheckIfGitRepo()
+	if err != nil {
+		t.Errorf("Error: %v", err)
+	}
+}