Revert "MM-6839: search relative to executable (#8853)" (#8876)

This reverts commit d3cf110620.

utils/config.go

@@ -32,94 +32,36 @@ const (
 	LOG_FILENAME    = "mattermost.log"
 )
 
-var (
-	commonBaseSearchPaths = []string{
-		".",
-		"..",
-		"../..",
-		"../../..",
-	}
-)
-
-func FindPath(path string, baseSearchPaths []string, filter func(os.FileInfo) bool) string {
-	if filepath.IsAbs(path) {
-		if _, err := os.Stat(path); err == nil {
-			return path
-		}
-
-		return ""
-	}
-
-	searchPaths := []string{}
-	for _, baseSearchPath := range baseSearchPaths {
-		searchPaths = append(searchPaths, baseSearchPath)
-	}
-
-	// Additionally attempt to search relative to the location of the running binary.
-	var binaryDir string
-	if exe, err := os.Executable(); err == nil {
-		if exe, err = filepath.EvalSymlinks(exe); err == nil {
-			if exe, err = filepath.Abs(exe); err == nil {
-				binaryDir = filepath.Dir(exe)
-			}
-		}
-	}
-	if binaryDir != "" {
-		for _, baseSearchPath := range baseSearchPaths {
-			searchPaths = append(
-				searchPaths,
-				filepath.Join(binaryDir, baseSearchPath),
-			)
-		}
-	}
-
-	for _, parent := range searchPaths {
-		found, err := filepath.Abs(filepath.Join(parent, path))
-		if err != nil {
-			continue
-		} else if fileInfo, err := os.Stat(found); err == nil {
-			if filter != nil && filter(fileInfo) {
-				return found
-			} else {
-				return found
-			}
-		}
-	}
-
-	return ""
-}
-
 // FindConfigFile attempts to find an existing configuration file. fileName can be an absolute or
 // relative path or name such as "/opt/mattermost/config.json" or simply "config.json". An empty
 // string is returned if no configuration is found.
 func FindConfigFile(fileName string) (path string) {
-	found := FindFile(filepath.Join("config", fileName))
-	if found == "" {
-		found = FindPath(fileName, []string{"."}, nil)
+	if filepath.IsAbs(fileName) {
+		if _, err := os.Stat(fileName); err == nil {
+			return fileName
+		}
+	} else {
+		for _, dir := range []string{"./config", "../config", "../../config", "../../../config", "."} {
+			path, _ := filepath.Abs(filepath.Join(dir, fileName))
+			if _, err := os.Stat(path); err == nil {
+				return path
+			}
+		}
 	}
-
-	return found
+	return ""
 }
 
-// FindFile looks for the given file in nearby ancestors relative to the current working
-// directory as well as the directory of the executable.
-func FindFile(path string) string {
-	return FindPath(path, commonBaseSearchPaths, func(fileInfo os.FileInfo) bool {
-		return !fileInfo.IsDir()
-	})
-}
-
-// FindDir looks for the given directory in nearby ancestors relative to the current working
-// directory as well as the directory of the executable, falling back to `./` if not found.
+// FindDir looks for the given directory in nearby ancestors, falling back to `./` if not found.
 func FindDir(dir string) (string, bool) {
-	found := FindPath(dir, commonBaseSearchPaths, func(fileInfo os.FileInfo) bool {
-		return fileInfo.IsDir()
-	})
-	if found == "" {
-		return "./", false
+	for _, parent := range []string{".", "..", "../..", "../../.."} {
+		foundDir, err := filepath.Abs(filepath.Join(parent, dir))
+		if err != nil {
+			continue
+		} else if _, err := os.Stat(foundDir); err == nil {
+			return foundDir, true
+		}
 	}
-
-	return found, true
+	return "./", false
 }
 
 func MloggerConfigFromLoggerConfig(s *model.LogSettings) *mlog.LoggerConfiguration {