From bc9cfcde08714da0856f47fa1199894bcaa7c1ca Mon Sep 17 00:00:00 2001
From: Mason Dye <108563824+MasonDye@users.noreply.github.com>
Date: Fri, 22 Mar 2024 07:33:37 +0800
Subject: [PATCH] V1.0.0

---
 Hpkse-1.0.0.go | 103 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 103 insertions(+)
 create mode 100644 Hpkse-1.0.0.go

diff --git a/Hpkse-1.0.0.go b/Hpkse-1.0.0.go
new file mode 100644
index 0000000..648f525
--- /dev/null
+++ b/Hpkse-1.0.0.go
@@ -0,0 +1,103 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"io"
+	"os"
+	"path/filepath"
+	"regexp"
+	"sync"
+)
+
+func searchInFile(filepath string, query string, wg *sync.WaitGroup, ch chan<- bool) {
+	defer wg.Done()
+	file, err := os.Open(filepath)
+	if err != nil {
+		fmt.Printf("Error opening file %s: %v\n", filepath, err)
+		return
+	}
+	defer file.Close()
+
+	reader := bufio.NewReaderSize(file, 1024*1024) // 1MB 缓冲区大小
+
+	found := false
+	for {
+		line, err := reader.ReadString('\n')
+		if err != nil {
+			if err != io.EOF {
+				fmt.Printf("Error reading file %s: %v\n", filepath, err)
+			}
+			break
+		}
+		if regexp.MustCompile(regexp.QuoteMeta(query)).MatchString(line) {
+			fmt.Printf("%s: %s\n", filepath, line)
+			found = true
+		}
+	}
+
+	if found {
+		ch <- true
+	}
+}
+
+func searchInDirectory(directory string, query string) {
+	var wg sync.WaitGroup
+	ch := make(chan bool)
+
+	filepath.Walk(directory, func(path string, info os.FileInfo, err error) error {
+		if err != nil {
+			fmt.Printf("Error accessing path %s: %v\n", path, err)
+			return nil
+		}
+		if !info.IsDir() && filepath.Ext(path) == ".txt" {
+			wg.Add(1)
+			go searchInFile(path, query, &wg, ch)
+		}
+		return nil
+	})
+
+	go func() {
+		wg.Wait()
+		close(ch)
+	}()
+
+	found := false
+	for range ch {
+		found = true
+	}
+
+	if !found {
+		fmt.Println("Not found keyword")
+	}
+}
+
+func main() {
+	fmt.Println("Hpkse High performance keyword search engine")
+	fmt.Println("Version : 1.0.0")
+	fmt.Println("Author by MasonDye\n")
+
+	var queryDirectory string
+
+	if len(os.Args) > 1 && os.Args[1] == "-data" {
+		if len(os.Args) > 2 {
+			queryDirectory = os.Args[2]
+		} else {
+			fmt.Println("Folder not provided")
+			return
+		}
+	} else {
+		fmt.Print("Search folder (relative path): ")
+		fmt.Scanln(&queryDirectory)
+	}
+
+	var query string
+	fmt.Print("Search keyword: ")
+	fmt.Scanln(&query)
+
+	if fileInfo, err := os.Stat(queryDirectory); err == nil && fileInfo.IsDir() {
+		searchInDirectory(queryDirectory, query)
+	} else {
+		fmt.Println("input path is not a folder.")
+	}
+}