From d7d926118e06af45b648cb2348286bd7b783c091 Mon Sep 17 00:00:00 2001
From: Patrick Organ <patrick@permafrost.dev>
Date: Sat, 11 Nov 2023 10:58:04 -0500
Subject: [PATCH] wip

---
 .custom-hooks/pre-commit   |  4 ++--
 app/helpers/git-helpers.go | 39 +++++++++++++++++++++++++++++++++++++
 cmd/showLastBranch.go      | 40 ++++++++++++++++++++++++++++++++++++++
 3 files changed, 81 insertions(+), 2 deletions(-)
 create mode 100644 app/helpers/git-helpers.go
 create mode 100644 cmd/showLastBranch.go

diff --git a/.custom-hooks/pre-commit b/.custom-hooks/pre-commit
index a52b476..e0863a5 100755
--- a/.custom-hooks/pre-commit
+++ b/.custom-hooks/pre-commit
@@ -3,7 +3,7 @@
 PROJECT_BASE_PATH=$(git rev-parse --show-toplevel)
 cd $PROJECT_BASE_PATH
 
-GO_FILES_STAGED=$(git diff --name-only --cached | grep .go | wc -l)
+GO_FILES_STAGED=$(git diff --name-only --cached | egrep '\.go$' | wc -l)
 
 echo "[pre-commit] GO_FILES_STAGED=$GO_FILES_STAGED"
 
@@ -12,7 +12,7 @@ if [ ! -z "$GO_FILES_STAGED" ] && [ "$GO_FILES_STAGED" != "0" ]; then
 
     if [ ! -z "$GOLINT_BIN" ]; then
         LAST_COMMIT=$(git rev-parse HEAD)
-        SRC_PATHS=$(find . -name "*.go" -printf '%h/**\n' | egrep -v  '(\./\..+|tools|build|dist)') | tr '\n' ' '
+        SRC_PATHS=$(find . -name "*.go" -printf '%h/**\n' | egrep -v '(\./\..+|tools|build|dist)') | tr '\n' ' '
 
         if [ -z "$SRC_PATHS" ]; then
             SRC_PATHS="./app ./cmd"
diff --git a/app/helpers/git-helpers.go b/app/helpers/git-helpers.go
new file mode 100644
index 0000000..aee556d
--- /dev/null
+++ b/app/helpers/git-helpers.go
@@ -0,0 +1,39 @@
+package githelpers
+
+import (
+	"bufio"
+	"bytes"
+	"fmt"
+	"os/exec"
+	"strings"
+)
+
+func GetLastCheckedoutBranchName() (string, error) {
+	var out bytes.Buffer
+
+	cmd := exec.Command("git", "reflog", "show", "--pretty=format:%gs", "--date=relative")
+	cmd.Stdout = &out
+
+	if err := cmd.Run(); err != nil {
+		return "", err
+	}
+
+	// Scan through each line of output
+	scanner := bufio.NewScanner(strings.NewReader(out.String()))
+	for scanner.Scan() {
+		line := scanner.Text()
+		// Check if the line contains 'checkout:'
+		if strings.Contains(line, "checkout:") {
+			fields := strings.Fields(line)
+			if len(fields) >= 4 {
+				return fields[3], nil // Return the fourth word (branch name)
+			}
+		}
+	}
+
+	if err := scanner.Err(); err != nil {
+		return "", err
+	}
+
+	return "", fmt.Errorf("no checkout entries found")
+}
diff --git a/cmd/showLastBranch.go b/cmd/showLastBranch.go
new file mode 100644
index 0000000..ec1780f
--- /dev/null
+++ b/cmd/showLastBranch.go
@@ -0,0 +1,40 @@
+/*
+Copyright © 2023 NAME HERE <EMAIL ADDRESS>
+*/
+package cmd
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+	githelpers "github.com/vendor-name/git-ninja/app/helpers"
+)
+
+// showLastBranchCmd represents the showLastBranch command
+var showLastBranchCmd = &cobra.Command{
+	Use:   "branch:show-last",
+	Short: "A brief description of your command",
+	Long: `A longer description that spans multiple lines and likely contains examples
+and usage of using your command. For example:
+
+Cobra is a CLI library for Go that empowers applications.
+This application is a tool to generate the needed files
+to quickly create a Cobra application.`,
+	Run: func(cmd *cobra.Command, args []string) {
+		fmt.Println(githelpers.GetLastCheckedoutBranchName())
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(showLastBranchCmd)
+
+	// Here you will define your flags and configuration settings.
+
+	// Cobra supports Persistent Flags which will work for this command
+	// and all subcommands, e.g.:
+	// showLastBranchCmd.PersistentFlags().String("foo", "", "A help for foo")
+
+	// Cobra supports local flags which will only run when this command
+	// is called directly, e.g.:
+	// showLastBranchCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
+}