Rewrote shell script as a go script

scripts/lint_no_trailing_newline_in_log_messages.go

@@ -0,0 +1,138 @@
+package main
+
+import (
+	"fmt"
+	"io/fs"
+	"os"
+	"regexp"
+	"strings"
+)
+
+var exDirs []string
+
+func main() {
+
+	parentDir, err := os.Getwd()
+	if err != nil {
+		fmt.Println(err)
+		os.Exit(1)
+	}
+
+	configFile := parentDir + "/.ci.conf"
+	exDirs, err = parseBashStringArray("EXCLUDE_DIRECTORIES", configFile)
+	if err != nil {
+		fmt.Println(err)
+		return
+	}
+
+	var filesToCheck []string
+	err = fs.WalkDir(os.DirFS(parentDir+"/.."), ".", func(path string, d fs.DirEntry, err error) error {
+		if err != nil {
+			return err
+		}
+
+		if isExcluded(path) {
+			return fs.SkipDir
+		}
+		if d.IsDir() || !strings.HasSuffix(d.Name(), ".go") {
+			return nil
+		}
+
+		filesToCheck = append(filesToCheck, path)
+		return nil
+	})
+
+	if err != nil {
+		fmt.Println(err)
+		return
+	}
+
+	logReg, err := regexp.Compile(`\.(Trace|Debug|Info|Warn|Error)f?\("[^"]*\\n"\)?`)
+	if err != nil {
+		fmt.Println(err)
+		return
+	}
+
+	for _, filename := range filesToCheck {
+		file, err := os.Open(parentDir + "/../" + filename)
+		if err != nil {
+			fmt.Println(err)
+			return
+		}
+		defer file.Close()
+
+		info, err := file.Stat()
+		if err != nil {
+			fmt.Println(err)
+			return
+		}
+
+		buff := make([]byte, info.Size())
+
+		_, err = file.Read(buff)
+		if err != nil {
+			fmt.Println(err)
+			return
+		}
+
+		foundArr := logReg.FindAll(buff, -1)
+		for _, match := range foundArr {
+			if !strings.Contains(string(match), "nolint") {
+				fmt.Println("Log format strings should have trailing new-line")
+				os.Exit(1)
+			}
+		}
+	}
+}
+
+func isExcluded(name string) bool {
+	for _, dir := range exDirs {
+		if name == dir {
+			return true
+		}
+	}
+	return false
+}
+
+func parseBashStringArray(variable, filename string) (arr []string, err error) {
+
+	file, err := os.Open(filename)
+	if err != nil {
+		return []string{}, err
+	}
+
+	defer file.Close()
+
+	info, err := file.Stat()
+	if err != nil {
+		return []string{}, err
+	}
+
+	buff := make([]byte, info.Size())
+
+	_, err = file.Read(buff)
+	if err != nil {
+		return []string{}, err
+	}
+
+	fileString := string(buff)
+
+	lines := strings.Split(fileString, "\n")
+	bashLine := ""
+	for line := range lines {
+		if strings.Contains(lines[line], variable) {
+			bashLine = lines[line]
+			break
+		}
+	}
+
+	if bashLine == "" {
+		return []string{}, fmt.Errorf("%s not found error", variable)
+	}
+
+	bashLine = strings.TrimPrefix(bashLine, variable+"=")
+	bashArray := strings.Fields(bashLine)
+	bashArray[0] = bashArray[0][1:]
+	bashArray[len(bashArray)-1] = strings.TrimRight(bashArray[len(bashArray)-1], ")")
+	return bashArray, nil
+}