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/*
Copyright 2024 Northern.tech AS
This file is part of CFEngine 3 - written and maintained by Northern.tech AS.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
To the extent this program is licensed as part of the Enterprise
versions of CFEngine, the applicable Commercial Open Source License
(COSL) may apply to this file if you as a licensee so wish it. See
included file COSL.txt.
*/
#ifndef GLOB_LIB_H
#define GLOB_LIB_H
#include <sequence.h>
#include <set.h>
/* Set by ./configure allowing us to avoid #include <config.h> here. */
@WITH_PCRE2_DEFINE@
#ifdef WITH_PCRE2
/**
* @brief Find files/directories matching shell pattern (glob).
*
* Patterns are UNIX shell style:
*
* '*' matches everything,
* '?' matches any single character,
* '[seq]' matches any character in seq,
* '[!seq]' matches any character not in seq,
* '{foo,bar}' matches foo or bar.
*
* Pattern is normalized if the operating system requires it. The double
* asterisk symbol does not match any subdirectories. The result is sorted in
* lexical order.
*
* @param pattern Glob pattern.
* @return Sorted sequence of matches.
*/
Seq *GlobFind(const char *pattern);
/**
* @brief Test whether string (filename) matches shell pattern (glob).
*
* Patterns are UNIX shell style:
*
* '*' matches everything,
* '?' matches any single character,
* '[seq]' matches any character in seq,
* '[!seq]' matches any character not in seq,
* '{foo,bar}' matches foo or bar.
*
* Pattern is normalized if the operating system requires it.
*
* We don't check if filename is valid, or if it is a file or if it exists.
* It's treated as just a string.
*
* Modeled after the python fnmatch module (see
* https://github.com/python/cpython/blob/3.8/Lib/fnmatch.py)
*
* @param pattern Glob pattern.
* @return True if filename matches shell pattern.
*/
bool GlobMatch(const char *pattern, const char *filename);
#endif // WITH_PCRE2
/**
* @brief Find files/directories matching shell pattern (glob).
*
* Patterns are UNIX shell style:
*
* '*' matches everything,
* '?' matches any single character,
* '[seq]' matches any character in seq,
* '[!seq]' matches any character not in seq,
* '{foo,bar}' matches foo or bar,
* '**' matches any subdirectory from zero up to six levels deep. A
* limit set by previous CFEngineers. TODO: remove limit in
* ticket CFE-4317.
*
* Pattern is normalized if the operating system requires it.
*
* @param pattern Glob pattern.
* @return Set of matches.
*/
StringSet *GlobFileList(const char *pattern);
#endif // GLOB_LIB_H
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