summaryrefslogtreecommitdiffstats
path: root/src/core/file_sys/vfs_layered.cpp
blob: bfee017256d47fcf4dcd92cad0ca653f4d4a25f6 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
// Copyright 2018 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.

#include <algorithm>
#include <utility>
#include "core/file_sys/vfs_layered.h"

namespace FileSys {

LayeredVfsDirectory::LayeredVfsDirectory(std::vector<VirtualDir> dirs, std::string name)
    : dirs(std::move(dirs)), name(std::move(name)) {}

LayeredVfsDirectory::~LayeredVfsDirectory() = default;

VirtualDir LayeredVfsDirectory::MakeLayeredDirectory(std::vector<VirtualDir> dirs,
                                                     std::string name) {
    if (dirs.empty())
        return nullptr;
    if (dirs.size() == 1)
        return dirs[0];

    return std::shared_ptr<VfsDirectory>(new LayeredVfsDirectory(std::move(dirs), std::move(name)));
}

std::shared_ptr<VfsFile> LayeredVfsDirectory::GetFileRelative(std::string_view path) const {
    for (const auto& layer : dirs) {
        const auto file = layer->GetFileRelative(path);
        if (file != nullptr)
            return file;
    }

    return nullptr;
}

std::shared_ptr<VfsDirectory> LayeredVfsDirectory::GetDirectoryRelative(
    std::string_view path) const {
    std::vector<VirtualDir> out;
    for (const auto& layer : dirs) {
        auto dir = layer->GetDirectoryRelative(path);
        if (dir != nullptr)
            out.push_back(std::move(dir));
    }

    return MakeLayeredDirectory(std::move(out));
}

std::shared_ptr<VfsFile> LayeredVfsDirectory::GetFile(std::string_view name) const {
    return GetFileRelative(name);
}

std::shared_ptr<VfsDirectory> LayeredVfsDirectory::GetSubdirectory(std::string_view name) const {
    return GetDirectoryRelative(name);
}

std::string LayeredVfsDirectory::GetFullPath() const {
    return dirs[0]->GetFullPath();
}

std::vector<std::shared_ptr<VfsFile>> LayeredVfsDirectory::GetFiles() const {
    std::vector<VirtualFile> out;
    for (const auto& layer : dirs) {
        for (const auto& file : layer->GetFiles()) {
            if (std::find_if(out.begin(), out.end(), [&file](const VirtualFile& comp) {
                    return comp->GetName() == file->GetName();
                }) == out.end()) {
                out.push_back(file);
            }
        }
    }

    return out;
}

std::vector<std::shared_ptr<VfsDirectory>> LayeredVfsDirectory::GetSubdirectories() const {
    std::vector<std::string> names;
    for (const auto& layer : dirs) {
        for (const auto& sd : layer->GetSubdirectories()) {
            if (std::find(names.begin(), names.end(), sd->GetName()) == names.end())
                names.push_back(sd->GetName());
        }
    }

    std::vector<VirtualDir> out;
    out.reserve(names.size());
    for (const auto& subdir : names)
        out.push_back(GetSubdirectory(subdir));

    return out;
}

bool LayeredVfsDirectory::IsWritable() const {
    return false;
}

bool LayeredVfsDirectory::IsReadable() const {
    return true;
}

std::string LayeredVfsDirectory::GetName() const {
    return name.empty() ? dirs[0]->GetName() : name;
}

std::shared_ptr<VfsDirectory> LayeredVfsDirectory::GetParentDirectory() const {
    return dirs[0]->GetParentDirectory();
}

std::shared_ptr<VfsDirectory> LayeredVfsDirectory::CreateSubdirectory(std::string_view name) {
    return nullptr;
}

std::shared_ptr<VfsFile> LayeredVfsDirectory::CreateFile(std::string_view name) {
    return nullptr;
}

bool LayeredVfsDirectory::DeleteSubdirectory(std::string_view name) {
    return false;
}

bool LayeredVfsDirectory::DeleteFile(std::string_view name) {
    return false;
}

bool LayeredVfsDirectory::Rename(std::string_view name_) {
    name = name_;
    return true;
}

bool LayeredVfsDirectory::ReplaceFileWithSubdirectory(VirtualFile file, VirtualDir dir) {
    return false;
}
} // namespace FileSys