script: Add ability to insert copyright to *.sh

Author: hebasto

contrib/devtools/copyright_header.py

@@ -455,14 +455,14 @@ def get_header_lines(header, start_year, end_year):
 def get_cpp_header_lines_to_insert(start_year, end_year):
     return reversed(get_header_lines(CPP_HEADER, start_year, end_year))
 
-PYTHON_HEADER = '''
+SCRIPT_HEADER = '''
 # Copyright (c) %s The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 '''
 
-def get_python_header_lines_to_insert(start_year, end_year):
-    return reversed(get_header_lines(PYTHON_HEADER, start_year, end_year))
+def get_script_header_lines_to_insert(start_year, end_year):
+    return reversed(get_header_lines(SCRIPT_HEADER, start_year, end_year))
 
 ################################################################################
 # query git for year of last change
@@ -491,12 +491,12 @@ def file_has_hashbang(file_lines):
         return False
     return file_lines[0][:2] == '#!'
 
-def insert_python_header(filename, file_lines, start_year, end_year):
+def insert_script_header(filename, file_lines, start_year, end_year):
     if file_has_hashbang(file_lines):
         insert_idx = 1
     else:
         insert_idx = 0
-    header_lines = get_python_header_lines_to_insert(start_year, end_year)
+    header_lines = get_script_header_lines_to_insert(start_year, end_year)
     for line in header_lines:
         file_lines.insert(insert_idx, line)
     write_file_lines(filename, file_lines)
@@ -513,8 +513,8 @@ def exec_insert_header(filename, style):
         sys.exit('*** %s already has a copyright by The Bitcoin Core developers'
                  % (filename))
     start_year, end_year = get_git_change_year_range(filename)
-    if style == 'python':
-        insert_python_header(filename, file_lines, start_year, end_year)
+    if style in ['python', 'shell']:
+        insert_script_header(filename, file_lines, start_year, end_year)
     else:
         insert_cpp_header(filename, file_lines, start_year, end_year)
 
@@ -555,11 +555,13 @@ def insert_cmd(argv):
     if not os.path.isfile(filename):
         sys.exit("*** bad filename: %s" % filename)
     _, extension = os.path.splitext(filename)
-    if extension not in ['.h', '.cpp', '.cc', '.c', '.py']:
+    if extension not in ['.h', '.cpp', '.cc', '.c', '.py', '.sh']:
         sys.exit("*** cannot insert for file extension %s" % extension)
 
     if extension == '.py':
         style = 'python'
+    elif extension == '.sh':
+        style = 'shell'
     else:
         style = 'cpp'
     exec_insert_header(filename, style)