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
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
|
// Include Files /*{{{*/
#include <config.h>
#include <apt-pkg/algorithms.h>
#include <apt-pkg/configuration.h>
#include <apt-pkg/depcache.h>
#include <apt-pkg/edsp.h>
#include <apt-pkg/error.h>
#include <apt-pkg/pkgcache.h>
#include <apt-pkg/progress.h>
#include <apt-pkg/upgrade.h>
#include <string>
#include <apti18n.h>
/*}}}*/
// DistUpgrade - Distribution upgrade /*{{{*/
// ---------------------------------------------------------------------
/* This autoinstalls every package and then force installs every
pre-existing package. This creates the initial set of conditions which
most likely contain problems because too many things were installed.
The problem resolver is used to resolve the problems.
*/
static bool pkgDistUpgrade(pkgDepCache &Cache, OpProgress * const Progress)
{
std::string const solver = _config->Find("APT::Solver", "internal");
auto const ret = EDSP::ResolveExternal(solver.c_str(), Cache, EDSP::Request::UPGRADE_ALL, Progress);
if (solver != "internal")
return ret;
if (Progress != NULL)
Progress->OverallProgress(0, 100, 1, _("Calculating upgrade"));
pkgDepCache::ActionGroup group(Cache);
/* Upgrade all installed packages first without autoinst to help the resolver
in versioned or-groups to upgrade the old solver instead of installing
a new one (if the old solver is not the first one [anymore]) */
for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I)
if (I->CurrentVer != 0)
Cache.MarkInstall(I, false, 0, false);
if (Progress != NULL)
Progress->Progress(10);
/* Auto upgrade all installed packages, this provides the basis
for the installation */
for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I)
if (I->CurrentVer != 0)
Cache.MarkInstall(I, true, 0, false);
if (Progress != NULL)
Progress->Progress(50);
/* Now, install each essential package which is not installed
(and not provided by another package in the same name group) */
std::string essential = _config->Find("pkgCacheGen::Essential", "all");
if (essential == "all")
{
for (pkgCache::GrpIterator G = Cache.GrpBegin(); G.end() == false; ++G)
{
bool isEssential = false;
bool instEssential = false;
for (pkgCache::PkgIterator P = G.PackageList(); P.end() == false; P = G.NextPkg(P))
{
if ((P->Flags & pkgCache::Flag::Essential) != pkgCache::Flag::Essential)
continue;
isEssential = true;
if (Cache[P].Install() == true)
{
instEssential = true;
break;
}
}
if (isEssential == false || instEssential == true)
continue;
pkgCache::PkgIterator P = G.FindPreferredPkg();
Cache.MarkInstall(P, true, 0, false);
}
}
else if (essential != "none")
for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I)
if ((I->Flags & pkgCache::Flag::Essential) == pkgCache::Flag::Essential)
Cache.MarkInstall(I, true, 0, false);
if (Progress != NULL)
Progress->Progress(55);
/* We do it again over all previously installed packages to force
conflict resolution on them all. */
for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I)
if (I->CurrentVer != 0)
Cache.MarkInstall(I, false, 0, false);
if (Progress != NULL)
Progress->Progress(65);
pkgProblemResolver Fix(&Cache);
if (Progress != NULL)
Progress->Progress(95);
// Hold back held packages.
if (_config->FindB("APT::Ignore-Hold",false) == false)
{
for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I)
{
if (I->SelectedState == pkgCache::State::Hold)
{
Fix.Protect(I);
Cache.MarkKeep(I, false, false);
}
}
}
bool const success = Fix.ResolveInternal(false);
if (Progress != NULL)
Progress->Done();
return success;
}
bool pkgDistUpgrade(pkgDepCache &Cache)
{
return pkgDistUpgrade(Cache, NULL);
}
/*}}}*/
// AllUpgradeNoNewPackages - Upgrade but no removals or new pkgs /*{{{*/
static bool pkgAllUpgradeNoNewPackages(pkgDepCache &Cache, OpProgress * const Progress)
{
std::string const solver = _config->Find("APT::Solver", "internal");
constexpr auto flags = EDSP::Request::UPGRADE_ALL | EDSP::Request::FORBID_NEW_INSTALL | EDSP::Request::FORBID_REMOVE;
auto const ret = EDSP::ResolveExternal(solver.c_str(), Cache, flags, Progress);
if (solver != "internal")
return ret;
if (Progress != NULL)
Progress->OverallProgress(0, 100, 1, _("Calculating upgrade"));
pkgDepCache::ActionGroup group(Cache);
pkgProblemResolver Fix(&Cache);
// Upgrade all installed packages
for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I)
{
if (Cache[I].Install() == true)
Fix.Protect(I);
if (_config->FindB("APT::Ignore-Hold",false) == false)
if (I->SelectedState == pkgCache::State::Hold)
continue;
if (I->CurrentVer != 0 && Cache[I].InstallVer != 0)
Cache.MarkInstall(I, false, 0, false);
}
if (Progress != NULL)
Progress->Progress(50);
// resolve remaining issues via keep
bool const success = Fix.ResolveByKeepInternal();
if (Progress != NULL)
Progress->Done();
return success;
}
/*}}}*/
// AllUpgradeWithNewInstalls - Upgrade + install new packages as needed /*{{{*/
// ---------------------------------------------------------------------
/* Right now the system must be consistent before this can be called.
* Upgrade as much as possible without deleting anything (useful for
* stable systems)
*/
static bool pkgAllUpgradeWithNewPackages(pkgDepCache &Cache, OpProgress * const Progress)
{
std::string const solver = _config->Find("APT::Solver", "internal");
constexpr auto flags = EDSP::Request::UPGRADE_ALL | EDSP::Request::FORBID_REMOVE;
auto const ret = EDSP::ResolveExternal(solver.c_str(), Cache, flags, Progress);
if (solver != "internal")
return ret;
if (Progress != NULL)
Progress->OverallProgress(0, 100, 1, _("Calculating upgrade"));
pkgDepCache::ActionGroup group(Cache);
pkgProblemResolver Fix(&Cache);
// provide the initial set of stuff we want to upgrade by marking
// all upgradable packages for upgrade
for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I)
{
if (I->CurrentVer != 0 && Cache[I].InstallVer != 0)
{
if (_config->FindB("APT::Ignore-Hold",false) == false)
if (I->SelectedState == pkgCache::State::Hold)
continue;
Cache.MarkInstall(I, false, 0, false);
}
}
if (Progress != NULL)
Progress->Progress(10);
// then let auto-install loose
for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I)
if (Cache[I].Install())
Cache.MarkInstall(I, true, 0, false);
if (Progress != NULL)
Progress->Progress(50);
// ... but it may remove stuff, we need to clean up afterwards again
for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I)
if (Cache[I].Delete() == true)
Cache.MarkKeep(I, false, false);
if (Progress != NULL)
Progress->Progress(60);
// resolve remaining issues via keep
bool const success = Fix.ResolveByKeepInternal();
if (Progress != NULL)
Progress->Done();
return success;
}
/*}}}*/
// AllUpgrade - Upgrade as many packages as possible /*{{{*/
// ---------------------------------------------------------------------
/* Right now the system must be consistent before this can be called.
It also will not change packages marked for install, it only tries
to install packages not marked for install */
static bool pkgAllUpgrade(pkgDepCache &Cache, OpProgress * const Progress)
{
return pkgAllUpgradeNoNewPackages(Cache, Progress);
}
bool pkgAllUpgrade(pkgDepCache &Cache)
{
return pkgAllUpgrade(Cache, NULL);
}
/*}}}*/
// MinimizeUpgrade - Minimizes the set of packages to be upgraded /*{{{*/
// ---------------------------------------------------------------------
/* This simply goes over the entire set of packages and tries to keep
each package marked for upgrade. If a conflict is generated then
the package is restored. */
bool pkgMinimizeUpgrade(pkgDepCache &Cache)
{
pkgDepCache::ActionGroup group(Cache);
if (Cache.BrokenCount() != 0)
return false;
// We loop for 10 tries to get the minimal set size.
bool Change = false;
unsigned int Count = 0;
do
{
Change = false;
for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I)
{
// Not interesting
if (Cache[I].Upgrade() == false || Cache[I].NewInstall() == true)
continue;
// Keep it and see if that is OK
Cache.MarkKeep(I, false, false);
if (Cache.BrokenCount() != 0)
Cache.MarkInstall(I, false, 0, false);
else
{
// If keep didn't actually do anything then there was no change..
if (Cache[I].Upgrade() == false)
Change = true;
}
}
++Count;
}
while (Change == true && Count < 10);
if (Cache.BrokenCount() != 0)
return _error->Error("Internal Error in pkgMinimizeUpgrade");
return true;
}
/*}}}*/
// APT::Upgrade::Upgrade - Upgrade using a specific strategy /*{{{*/
bool APT::Upgrade::Upgrade(pkgDepCache &Cache, int mode, OpProgress * const Progress)
{
APT_IGNORE_DEPRECATED_PUSH
if (mode == ALLOW_EVERYTHING)
return pkgDistUpgrade(Cache, Progress);
else if ((mode & ~FORBID_REMOVE_PACKAGES) == 0)
return pkgAllUpgradeWithNewPackages(Cache, Progress);
else if ((mode & ~(FORBID_REMOVE_PACKAGES|FORBID_INSTALL_NEW_PACKAGES)) == 0)
return pkgAllUpgradeNoNewPackages(Cache, Progress);
else
_error->Error("pkgAllUpgrade called with unsupported mode %i", mode);
APT_IGNORE_DEPRECATED_POP
return false;
}
/*}}}*/
|
