qapi: Generate up-to-date copyright notice

Each generator carries a copyright notice for the generator itself,
and another one for the files it generates.  Only the former have been
updated along the way, the latter have not, and are all out of date.

Fix by copying the generator's copyright notice to the generated files
instead.  Note that the fix doesn't copy the "Authors:" part; the
generated files' outdated Authors list goes away without replacement.
Signed-off-by: NMarkus Armbruster <armbru@redhat.com>
Reviewed-by: NEric Blake <eblake@redhat.com>
Reviewed-by: NMarc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20180211093607.27351-4-armbru@redhat.com>
Reviewed-by: NMichael Roth <mdroth@linux.vnet.ibm.com>
[eblake: Flatten each 'blurb' to one line]
Signed-off-by: NEric Blake <eblake@redhat.com>

scripts/qapi-commands.py

-#
-# QAPI command marshaller generator
-#
-# Copyright IBM, Corp. 2011
-# Copyright (C) 2014-2016 Red Hat, Inc.
-#
-# Authors:
-#  Anthony Liguori <aliguori@us.ibm.com>
-#  Michael Roth    <mdroth@linux.vnet.ibm.com>
-#  Markus Armbruster <armbru@redhat.com>
-#
-# This work is licensed under the terms of the GNU GPL, version 2.
-# See the COPYING file in the top-level directory.
+"""
+QAPI command marshaller generator
+
+Copyright IBM, Corp. 2011
+Copyright (C) 2014-2018 Red Hat, Inc.
+
+Authors:
+ Anthony Liguori <aliguori@us.ibm.com>
+ Michael Roth <mdroth@linux.vnet.ibm.com>
+ Markus Armbruster <armbru@redhat.com>
+
+This work is licensed under the terms of the GNU GPL, version 2.
+See the COPYING file in the top-level directory.
+"""
 
 from qapi import *
 
@@ -255,18 +256,11 @@ class QAPISchemaGenCommandVisitor(QAPISchemaVisitor):
 
 (input_file, output_dir, do_c, do_h, prefix, opts) = parse_command_line()
 
-blurb = '''
- * Schema-defined QAPI/QMP commands
- *
- * Copyright IBM, Corp. 2011
- *
- * Authors:
- *  Anthony Liguori   <aliguori@us.ibm.com>
-'''
+blurb = ' * Schema-defined QAPI/QMP commands'
 
 (fdef, fdecl) = open_output(output_dir, do_c, do_h, prefix,
                             'qmp-marshal.c', 'qmp-commands.h',
-                            blurb)
+                            blurb, __doc__)
 
 fdef.write(mcgen('''
 

scripts/qapi-event.py

-#
-# QAPI event generator
-#
-# Copyright (c) 2014 Wenchao Xia
-# Copyright (c) 2015-2016 Red Hat Inc.
-#
-# Authors:
-#  Wenchao Xia <wenchaoqemu@gmail.com>
-#  Markus Armbruster <armbru@redhat.com>
-#
-# This work is licensed under the terms of the GNU GPL, version 2.
-# See the COPYING file in the top-level directory.
+"""
+QAPI event generator
+
+Copyright (c) 2014 Wenchao Xia
+Copyright (c) 2015-2018 Red Hat Inc.
+
+Authors:
+ Wenchao Xia <wenchaoqemu@gmail.com>
+ Markus Armbruster <armbru@redhat.com>
+
+This work is licensed under the terms of the GNU GPL, version 2.
+See the COPYING file in the top-level directory.
+"""
 
 from qapi import *
 
@@ -171,18 +172,11 @@ class QAPISchemaGenEventVisitor(QAPISchemaVisitor):
 
 (input_file, output_dir, do_c, do_h, prefix, dummy) = parse_command_line()
 
-blurb = '''
- * Schema-defined QAPI/QMP events
- *
- * Copyright (c) 2014 Wenchao Xia
- *
- * Authors:
- *  Wenchao Xia   <wenchaoqemu@gmail.com>
-'''
+blurb = ' * Schema-defined QAPI/QMP events'
 
 (fdef, fdecl) = open_output(output_dir, do_c, do_h, prefix,
                             'qapi-event.c', 'qapi-event.h',
-                            blurb)
+                            blurb, __doc__)
 
 fdef.write(mcgen('''
 #include "qemu/osdep.h"

scripts/qapi-introspect.py

-#
-# QAPI introspection generator
-#
-# Copyright (C) 2015-2016 Red Hat, Inc.
-#
-# Authors:
-#  Markus Armbruster <armbru@redhat.com>
-#
-# This work is licensed under the terms of the GNU GPL, version 2.
-# See the COPYING file in the top-level directory.
+"""
+QAPI introspection generator
+
+Copyright (C) 2015-2018 Red Hat, Inc.
+
+Authors:
+ Markus Armbruster <armbru@redhat.com>
+
+This work is licensed under the terms of the GNU GPL, version 2.
+See the COPYING file in the top-level directory.
+"""
 
 from qapi import *
 
@@ -176,15 +177,11 @@ for o, a in opts:
     if o in ('-u', '--unmask-non-abi-names'):
         opt_unmask = True
 
-blurb = '''
- * QAPI/QMP schema introspection
- *
- * Copyright (C) 2015 Red Hat, Inc.
-'''
+blurb = ' * QAPI/QMP schema introspection'
 
 (fdef, fdecl) = open_output(output_dir, do_c, do_h, prefix,
                             'qmp-introspect.c', 'qmp-introspect.h',
-                            blurb)
+                            blurb, __doc__)
 
 fdef.write(mcgen('''
 #include "qemu/osdep.h"

scripts/qapi-types.py

-#
-# QAPI types generator
-#
-# Copyright IBM, Corp. 2011
-# Copyright (c) 2013-2016 Red Hat Inc.
-#
-# Authors:
-#  Anthony Liguori <aliguori@us.ibm.com>
-#  Markus Armbruster <armbru@redhat.com>
-#
-# This work is licensed under the terms of the GNU GPL, version 2.
+"""
+QAPI types generator
+
+Copyright IBM, Corp. 2011
+Copyright (c) 2013-2018 Red Hat Inc.
+
+Authors:
+ Anthony Liguori <aliguori@us.ibm.com>
+ Michael Roth <mdroth@linux.vnet.ibm.com>
+ Markus Armbruster <armbru@redhat.com>
+
+This work is licensed under the terms of the GNU GPL, version 2.
 # See the COPYING file in the top-level directory.
+"""
 
 from qapi import *
 
@@ -250,19 +252,11 @@ for o, a in opts:
     if o in ('-b', '--builtins'):
         do_builtins = True
 
-blurb = '''
- * Schema-defined QAPI types
- *
- * Copyright IBM, Corp. 2011
- *
- * Authors:
- *  Anthony Liguori   <aliguori@us.ibm.com>
- *  Michael Roth      <mdroth@linux.vnet.ibm.com>
-'''
+blurb = ' * Schema-defined QAPI types'
 
 (fdef, fdecl) = open_output(output_dir, do_c, do_h, prefix,
                             'qapi-types.c', 'qapi-types.h',
-                            blurb)
+                            blurb, __doc__)
 
 fdef.write(mcgen('''
 #include "qemu/osdep.h"

scripts/qapi-visit.py

-#
-# QAPI visitor generator
-#
-# Copyright IBM, Corp. 2011
-# Copyright (C) 2014-2016 Red Hat, Inc.
-#
-# Authors:
-#  Anthony Liguori <aliguori@us.ibm.com>
-#  Michael Roth    <mdroth@linux.vnet.ibm.com>
-#  Markus Armbruster <armbru@redhat.com>
-#
-# This work is licensed under the terms of the GNU GPL, version 2.
-# See the COPYING file in the top-level directory.
+"""
+QAPI visitor generator
+
+Copyright IBM, Corp. 2011
+Copyright (C) 2014-2018 Red Hat, Inc.
+
+Authors:
+ Anthony Liguori <aliguori@us.ibm.com>
+ Michael Roth    <mdroth@linux.vnet.ibm.com>
+ Markus Armbruster <armbru@redhat.com>
+
+This work is licensed under the terms of the GNU GPL, version 2.
+See the COPYING file in the top-level directory.
+"""
 
 from qapi import *
 
@@ -334,18 +335,11 @@ for o, a in opts:
     if o in ('-b', '--builtins'):
         do_builtins = True
 
-blurb = '''
- * Schema-defined QAPI visitors
- *
- * Copyright IBM, Corp. 2011
- *
- * Authors:
- *  Anthony Liguori   <aliguori@us.ibm.com>
-'''
+blurb = ' * Schema-defined QAPI visitors'
 
 (fdef, fdecl) = open_output(output_dir, do_c, do_h, prefix,
                             'qapi-visit.c', 'qapi-visit.h',
-                            blurb)
+                            blurb, __doc__)
 
 fdef.write(mcgen('''
 #include "qemu/osdep.h"

scripts/qapi.py

@@ -1985,21 +1985,24 @@ def parse_command_line(extra_options='', extra_long_options=[]):
 #
 
 
-def open_output(output_dir, do_c, do_h, prefix, c_file, h_file, blurb):
+def open_output(output_dir, do_c, do_h, prefix, c_file, h_file, blurb, doc):
     guard = guardname(prefix + h_file)
     c_file = output_dir + prefix + c_file
     h_file = output_dir + prefix + h_file
+    copyright = '\n * '.join(re.findall(r'^Copyright .*', doc, re.MULTILINE))
     comment = mcgen('''/* AUTOMATICALLY GENERATED, DO NOT MODIFY */
 
 /*
 %(blurb)s
+ *
+ * %(copyright)s
  *
  * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
  * See the COPYING.LIB file in the top-level directory.
  */
 
 ''',
-                    blurb=blurb.strip('\n'))
+                    blurb=blurb, copyright=copyright)
 
     if output_dir:
         try: