alexpete
116 lines
3.8 KiB
C++
116 lines
3.8 KiB
C++
/*
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* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
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* its licensors.
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*
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* For complete copyright and license terms please see the LICENSE at the root of this
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* distribution (the "License"). All use of this software is governed by the License,
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* or, if provided, by the license below or the license accompanying this file. Do not
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* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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*
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*/
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// Original file Copyright Crytek GMBH or its affiliates, used under license.
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// Declaration of the class that can be used to search for the entries
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// in a zip dir cache
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#pragma once
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#include <AzCore/std/string/fixed_string.h>
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#include <AzFramework/Archive/ZipDirTree.h>
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namespace AZ::IO::ZipDir
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{
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class FileEntryTree;
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// create this structure and loop:
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// FindData fd (pZip);
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// for (fd.FindFirst("*.cgf"); fd.GetFileEntry(); fd.FindNext())
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// {} // inside the loop, use GetFileEntry() and GetFileName() to get the file entry and name records
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class FindData
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{
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public:
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FindData(FileEntryTree* pRoot)
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: m_pRoot(pRoot)
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{
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}
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// returns the directory to which the current object belongs
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FileEntryTree* GetParentDir() {return m_pDirHeader; }
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protected:
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// initializes everything until the point where the file must be searched for
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// after this call returns successfully (with true returned), the m_szWildcard
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// contains the file name/wildcard and m_pDirHeader contains the directory where
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// the file (s) are to be found
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bool PreFind(AZStd::string_view szWildcard);
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// matches the file wildcard in the m_szWildcard to the given file/dir name
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// this takes into account the fact that xxx. is the alias name for xxx
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bool MatchWildcard(AZStd::string_view szName);
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// the directory inside which the current object (file or directory) is being searched
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FileEntryTree* m_pDirHeader{};
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FileEntryTree* m_pRoot{}; // the root of the zip file in which to search
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// the actual wildcard being used in the current scan - the file name wildcard only!
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AZStd::fixed_string<AZ_MAX_PATH_LEN> m_szWildcard;
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};
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class FindFile
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: public FindData
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{
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public:
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FindFile(CachePtr pCache)
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: FindData(pCache->GetRoot())
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{
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}
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FindFile(FileEntryTree* pRoot)
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: FindData(pRoot)
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{
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}
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// if bExactFile is passed, only the file is searched, and besides with the exact name as passed (no wildcards)
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bool FindFirst(AZStd::string_view szWildcard);
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FileEntry* FindExact(AZStd::string_view szPath);
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// goes on to the next file entry
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bool FindNext();
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FileEntry* GetFileEntry();
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AZStd::string_view GetFileName();
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protected:
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bool SkipNonMatchingFiles();
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FileEntryTree::FileMap::iterator m_itFile; // the current file iterator inside the parent directory
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};
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class FindDir
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: public FindData
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{
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public:
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FindDir(CachePtr pCache)
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: FindData(pCache->GetRoot())
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{
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}
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FindDir(FileEntryTree* pRoot)
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: FindData(pRoot)
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{
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}
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// if bExactFile is passed, only the file is searched, and besides with the exact name as passed (no wildcards)
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bool FindFirst(AZStd::string_view szWildcard);
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FileEntryTree* FindExact(AZStd::string_view szPath);
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// goes on to the next file entry
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bool FindNext();
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FileEntryTree* GetDirEntry();
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AZStd::string_view GetDirName();
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protected:
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bool SkipNonMatchingDirs();
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FileEntryTree::SubdirMap::iterator m_itDir; // the current sub-directory iterator
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};
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}
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