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1 | /* |
2 | * Copyright (c) 2001, Robert Collins. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License as published by | |
6 | * the Free Software Foundation; either version 2 of the License, or | |
7 | * (at your option) any later version. | |
8 | * | |
9 | * A copy of the GNU General Public License can be found at | |
10 | * http://www.gnu.org/ | |
11 | * | |
12 | * Written by Robert Collins <rbtcollins@hotmail.com> | |
13 | * | |
14 | */ | |
15 | ||
fa0c0d10 | 16 | /* This is a package version abstrct class, that should be able to |
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17 | * arbitrate acceess to cygwin binary packages, cygwin source package, |
18 | * and the rpm and deb equivalents of the same. | |
19 | */ | |
20 | ||
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21 | #ifndef _PACKAGE_VERSION_H_ |
22 | #define _PACKAGE_VERSION_H_ | |
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23 | |
24 | /* standard binary package metadata: | |
25 | * Name (ie mutt | |
26 | * Vendor Version (ie 2.5.1) | |
27 | * Package Version (ie 16) | |
28 | * Stability | |
29 | * Files | |
30 | */ | |
31 | ||
32 | /* For non installed files, this class can be populated via information about | |
33 | * what is available on the net, or by parsing a specific package file. | |
34 | * for installed packages, this class should represent what is currently installed, | |
35 | * - updated by what net metadata has about it. | |
36 | * i.e. the stability of this version will change simply because the net mirrors | |
37 | * now consider it old. | |
38 | */ | |
39 | ||
7b606ae5 | 40 | class CategoryList; |
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41 | |
42 | /*Required for parsing */ | |
bb849dbd | 43 | #include "package_source.h" |
3c054baf | 44 | #include "String++.h" |
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45 | #include "PackageSpecification.h" |
46 | #include <vector> | |
bb849dbd | 47 | |
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48 | typedef enum |
49 | { | |
50 | package_invalid, | |
51 | package_old, | |
52 | package_current, | |
53 | package_experimental | |
54 | } | |
55 | package_stability_t; | |
56 | ||
57 | typedef enum | |
58 | { | |
59 | package_notinstalled, | |
60 | package_installed | |
61 | } | |
62 | package_status_t; | |
63 | ||
64 | typedef enum | |
65 | { | |
66 | package_binary, | |
67 | package_source | |
68 | } | |
69 | package_type_t; | |
70 | ||
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71 | /* A wrapper class to be copied by value that |
72 | references the same package. | |
73 | Nothing is virtual, because the wrapper cannot be inherited. | |
74 | However, as all the methods are implemented in the referenced | |
75 | _packageversion, that class allows virtual overriding. | |
76 | */ | |
77 | ||
78 | class _packageversion; | |
79 | ||
80 | /* This class has pointer semantics | |
81 | Specifically: a=b does not alter the value of *a. | |
82 | */ | |
fa0c0d10 | 83 | class packageversion |
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84 | { |
85 | public: | |
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86 | packageversion (); /* creates an empty packageversion */ |
87 | packageversion (_packageversion *); /* used when creating an instance */ | |
88 | packageversion (packageversion const &); | |
89 | ~packageversion (); | |
90 | packageversion &operator= (packageversion const &); | |
91 | bool operator ! () const; /* true if the package is invalid. (i.e. | |
92 | uninitialised */ | |
93 | operator bool () const; /* returns ! !() */ | |
94 | bool operator == (packageversion const &) const; /* equality */ | |
95 | bool operator != (packageversion const &) const; | |
96 | bool operator < (packageversion const &) const; | |
97 | bool operator <= (packageversion const &) const; | |
98 | bool operator > (packageversion const &) const; | |
99 | bool operator >= (packageversion const &) const; | |
100 | ||
101 | String const Name () const; | |
102 | String const Vendor_version () const; | |
103 | String const Package_version () const; | |
104 | String const Canonical_version () const; | |
105 | void setCanonicalVersion (String const &); | |
106 | package_status_t Status () const; | |
107 | package_type_t Type () const; | |
108 | String const getfirstfile (); | |
109 | String const getnextfile (); | |
110 | String const SDesc () const; | |
111 | void set_sdesc (String const &); | |
112 | String const LDesc () const; | |
113 | void set_ldesc (String const &); | |
114 | packageversion sourcePackage (); | |
115 | PackageSpecification & sourcePackageSpecification (); | |
116 | void setSourcePackageSpecification (PackageSpecification const &); | |
117 | ||
118 | /* invariant: these never return NULL */ | |
119 | vector <vector <PackageSpecification *> *> *depends(), *predepends(), | |
b1ff53ed | 120 | *recommends(), *suggests(), *replaces(), *conflicts(), *provides(), *binaries(); |
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121 | |
122 | bool picked() const; /* true if this version is to be installed */ | |
123 | void pick(bool); /* trigger an install/reinsall */ | |
124 | /* a change - install/uninstall/reinstall/source install | |
125 | has been requested */ | |
126 | bool changeRequested () const; | |
127 | ||
128 | void uninstall (); | |
129 | /* invariant: never null */ | |
130 | packagesource *source(); /* where can we source the files from */ | |
131 | ||
132 | bool accessible () const; | |
133 | ||
134 | private: | |
135 | _packageversion *data; /* Invariant: * data is always valid */ | |
136 | }; | |
137 | ||
138 | class _packageversion | |
139 | { | |
140 | public: | |
141 | _packageversion(); | |
142 | virtual ~_packageversion(); | |
bb849dbd | 143 | /* for list inserts/mgmt. */ |
3c054baf | 144 | String key; |
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145 | /* name is needed here, because if we are querying a file, the data may be embedded in |
146 | the file */ | |
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147 | virtual String const Name () = 0; |
148 | virtual String const Vendor_version () = 0; | |
149 | virtual String const Package_version () = 0; | |
150 | virtual String const Canonical_version () = 0; | |
3c196821 | 151 | virtual void setCanonicalVersion (String const &) = 0; |
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152 | virtual package_status_t Status () = 0; |
153 | // virtual package_stability_t Stability () = 0; | |
154 | virtual package_type_t Type () = 0; | |
155 | /* TODO: we should probably return a metaclass - file name & path & size & type | |
156 | - ie doc/script/binary | |
157 | */ | |
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158 | virtual String const getfirstfile () = 0; |
159 | virtual String const getnextfile () = 0; | |
160 | virtual String const SDesc () = 0; | |
161 | virtual void set_sdesc (String const &) = 0; | |
162 | virtual String const LDesc () = 0; | |
163 | virtual void set_ldesc (String const &) = 0; | |
aa1e3b4d | 164 | /* only semantically meaningful for binary packages */ |
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165 | /* direct link to the source package for this binary */ |
166 | /* if multiple versions exist and the source doesn't discriminate | |
167 | then the most recent is used | |
168 | */ | |
169 | virtual packageversion sourcePackage (); | |
170 | virtual PackageSpecification & sourcePackageSpecification (); | |
171 | virtual void setSourcePackageSpecification (PackageSpecification const &); | |
aa1e3b4d | 172 | |
aa1e3b4d | 173 | vector <vector <PackageSpecification *> *> depends, predepends, recommends, |
b1ff53ed | 174 | suggests, replaces, conflicts, provides, binaries; |
aa1e3b4d | 175 | |
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176 | bool picked; /* non zero if this version is to be installed */ |
177 | /* This will also trigger reinstalled if it is set */ | |
178 | /* a change - install/uninstall/reinstall/source install | |
179 | has been requested */ | |
180 | bool changeRequested (); | |
bb849dbd | 181 | |
7939f6d1 | 182 | |
bb849dbd | 183 | virtual void uninstall () = 0; |
3c196821 | 184 | packagesource source; /* where can we source the files from */ |
fa0c0d10 | 185 | |
3c196821 | 186 | bool accessible () const; |
7939f6d1 | 187 | |
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188 | /* TODO: Implement me: |
189 | static package_meta * scan_package (io_stream *); | |
190 | */ | |
3c196821 | 191 | size_t references; |
aa1e3b4d | 192 | protected: |
3c196821 | 193 | /* only meaningful for binary packages */ |
aa1e3b4d | 194 | PackageSpecification _sourcePackage; |
3c196821 | 195 | packageversion sourceVersion; |
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196 | }; |
197 | ||
fa0c0d10 | 198 | #endif /* _PACKAGE_VERSION_H_ */ |