8b022a822c
Internally the code confuses the concept of "the user doesn't want a backup file" and "the user hasn't defined a type of backup file". Introduce a new "undefined" backup type to serve the purpose "none" previously did, and make "none" not generate backup files, as expected. http://mail-index.netbsd.org/tech-userlevel/2021/02/19/msg012901.html XXX pullup?
45 lines
1.2 KiB
C
45 lines
1.2 KiB
C
/*
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* $OpenBSD: backupfile.h,v 1.6 2003/07/28 18:35:36 otto Exp $
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* $DragonFly: src/usr.bin/patch/backupfile.h,v 1.3 2007/09/29 23:11:10 swildner Exp $
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* $NetBSD: backupfile.h,v 1.7 2021/02/19 17:46:53 nia Exp $
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*/
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/*
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* backupfile.h -- declarations for making Emacs style backup file names
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* Copyright (C) 1990 Free Software Foundation, Inc.
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*
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* This program is free software; you can redistribute it and/or modify it
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* without restriction.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE.
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*
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*/
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/* When to make backup files. */
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enum backup_type {
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undefined,
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/* Never make backups. */
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none,
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/* Make simple backups of every file. */
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simple,
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/*
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* Make numbered backups of files that already have numbered backups,
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* and simple backups of the others.
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*/
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numbered_existing,
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/* Make numbered backups of every file. */
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numbered
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};
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extern enum backup_type backup_type;
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extern const char *simple_backup_suffix;
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char *find_backup_file_name(const char *file);
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enum backup_type get_version(const char *version);
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