chore: fix byte encode (pingcap#6428)

scripts/check-conflicts.py

@@ -42,7 +42,7 @@
     single = []
     lineNum = 0
     if os.path.isfile(filename):
-        with open(filename,'r') as file:
+        with open(filename,'r', encoding='utf-8') as file:
             for line in file:
                 lineNum += 1
                 if re.match(r'<{7}.*\n', line):
@@ -57,15 +57,15 @@
                     flag = 0
                 else:
                     continue
-            
+
 
     if len(pos):
         mark = 1
         print("\n" + filename + ": this file has conflicts in the following lines:\n")
         for conflict in pos:
             if len(conflict) == 2:
                 print("CONFLICTS: line " + str(conflict[0]) + " to line " + str(conflict[1]) + "\n")
-    
+
     pos = []
 
 if mark:

scripts/check-control-char.py

@@ -37,7 +37,7 @@ def check_control_char(filename):
     pos = []
     flag = 0
 
-    with open(filename,'r') as file:
+    with open(filename,'r', encoding='utf-8') as file:
         for line in file:
 
             lineNum += 1

scripts/check-file-encoding.py

@@ -35,7 +35,7 @@ def check_BOM(filename):
     BUFSIZE = 4096
     BOMLEN = len(codecs.BOM_UTF8)
 
-    with open(filename, "r+b") as fp:
+    with open(filename, "r+b", encoding='utf-8') as fp:
         chunk = fp.read(BUFSIZE)
         if chunk.startswith(codecs.BOM_UTF8):
             i = 0

scripts/check-manual-line-breaks.py

@@ -40,7 +40,7 @@ def check_manual_break(filename):
     lineNum = 0
     mark = 0
 
-    with open(filename,'r') as file:
+    with open(filename,'r', encoding='utf-8') as file:
         for line in file:
 
             lineNum += 1

scripts/check-tags.py

@@ -107,7 +107,7 @@ def filter_frontmatter(content):
         if len(collect) >= 2:
             filter_point = collect[1]
             content = content[filter_point:]
-            
+
     return content
 
 def filter_backticks(content, filename):
@@ -140,7 +140,7 @@ def filter_backticks(content, filename):
 for filename in sys.argv[1:]:
     # print("Checking " + filename + "......\n")
     if os.path.isfile(filename):
-        file = open(filename, "r" )
+        file = open(filename, "r", encoding='utf-8')
         content = file.read()
         file.close()