]>
Commit | Line | Data |
---|---|---|
1 | // -*- mode: cpp; mode: fold -*- | |
2 | // Description /*{{{*/ | |
3 | // $Id: apt-cache.cc,v 1.33 1999/04/12 04:21:20 jgg Exp $ | |
4 | /* ###################################################################### | |
5 | ||
6 | apt-cache - Manages the cache files | |
7 | ||
8 | apt-cache provides some functions fo manipulating the cache files. | |
9 | It uses the command line interface common to all the APT tools. The | |
10 | only really usefull function right now is dumpavail which is used | |
11 | by the dselect method. Everything else is ment as a debug aide. | |
12 | ||
13 | Returns 100 on failure, 0 on success. | |
14 | ||
15 | ##################################################################### */ | |
16 | /*}}}*/ | |
17 | // Include Files /*{{{*/ | |
18 | #include <apt-pkg/error.h> | |
19 | #include <apt-pkg/pkgcachegen.h> | |
20 | #include <apt-pkg/deblistparser.h> | |
21 | #include <apt-pkg/init.h> | |
22 | #include <apt-pkg/progress.h> | |
23 | #include <apt-pkg/sourcelist.h> | |
24 | #include <apt-pkg/cmndline.h> | |
25 | #include <apt-pkg/strutl.h> | |
26 | #include <apt-pkg/pkgrecords.h> | |
27 | #include <config.h> | |
28 | ||
29 | #include <iostream.h> | |
30 | #include <unistd.h> | |
31 | #include <errno.h> | |
32 | #include <regex.h> | |
33 | /*}}}*/ | |
34 | ||
35 | pkgCache *GCache = 0; | |
36 | ||
37 | // UnMet - Show unmet dependencies /*{{{*/ | |
38 | // --------------------------------------------------------------------- | |
39 | /* */ | |
40 | bool UnMet(CommandLine &CmdL) | |
41 | { | |
42 | pkgCache &Cache = *GCache; | |
43 | bool Important = _config->FindB("APT::Cache::Important",false); | |
44 | ||
45 | for (pkgCache::PkgIterator P = Cache.PkgBegin(); P.end() == false; P++) | |
46 | { | |
47 | for (pkgCache::VerIterator V = P.VersionList(); V.end() == false; V++) | |
48 | { | |
49 | bool Header = false; | |
50 | for (pkgCache::DepIterator D = V.DependsList(); D.end() == false;) | |
51 | { | |
52 | // Collect or groups | |
53 | pkgCache::DepIterator Start; | |
54 | pkgCache::DepIterator End; | |
55 | D.GlobOr(Start,End); | |
56 | ||
57 | /* cout << "s: Check " << Start.TargetPkg().Name() << ',' << | |
58 | End.TargetPkg().Name() << endl;*/ | |
59 | ||
60 | // Skip conflicts and replaces | |
61 | if (End->Type != pkgCache::Dep::PreDepends && | |
62 | End->Type != pkgCache::Dep::Depends && | |
63 | End->Type != pkgCache::Dep::Suggests && | |
64 | End->Type != pkgCache::Dep::Recommends) | |
65 | continue; | |
66 | ||
67 | // Important deps only | |
68 | if (Important == true) | |
69 | if (End->Type != pkgCache::Dep::PreDepends && | |
70 | End->Type != pkgCache::Dep::Depends) | |
71 | continue; | |
72 | ||
73 | // Verify the or group | |
74 | bool OK = false; | |
75 | pkgCache::DepIterator RealStart = Start; | |
76 | do | |
77 | { | |
78 | // See if this dep is Ok | |
79 | pkgCache::Version **VList = Start.AllTargets(); | |
80 | if (*VList != 0) | |
81 | { | |
82 | OK = true; | |
83 | delete [] VList; | |
84 | break; | |
85 | } | |
86 | delete [] VList; | |
87 | ||
88 | if (Start == End) | |
89 | break; | |
90 | Start++; | |
91 | } | |
92 | while (1); | |
93 | ||
94 | // The group is OK | |
95 | if (OK == true) | |
96 | continue; | |
97 | ||
98 | // Oops, it failed.. | |
99 | if (Header == false) | |
100 | cout << "Package " << P.Name() << " version " << | |
101 | V.VerStr() << " has an unmet dep:" << endl; | |
102 | Header = true; | |
103 | ||
104 | // Print out the dep type | |
105 | cout << " " << End.DepType() << ": "; | |
106 | ||
107 | // Show the group | |
108 | Start = RealStart; | |
109 | do | |
110 | { | |
111 | cout << Start.TargetPkg().Name(); | |
112 | if (Start.TargetVer() != 0) | |
113 | cout << " (" << Start.CompType() << " " << Start.TargetVer() << | |
114 | ")"; | |
115 | if (Start == End) | |
116 | break; | |
117 | cout << " | "; | |
118 | Start++; | |
119 | } | |
120 | while (1); | |
121 | ||
122 | cout << endl; | |
123 | } | |
124 | } | |
125 | } | |
126 | return true; | |
127 | } | |
128 | /*}}}*/ | |
129 | // DumpPackage - Show a dump of a package record /*{{{*/ | |
130 | // --------------------------------------------------------------------- | |
131 | /* */ | |
132 | bool DumpPackage(CommandLine &CmdL) | |
133 | { | |
134 | pkgCache &Cache = *GCache; | |
135 | for (const char **I = CmdL.FileList + 1; *I != 0; I++) | |
136 | { | |
137 | pkgCache::PkgIterator Pkg = Cache.FindPkg(*I); | |
138 | if (Pkg.end() == true) | |
139 | { | |
140 | _error->Warning("Unable to locate package %s",*I); | |
141 | continue; | |
142 | } | |
143 | ||
144 | cout << "Package: " << Pkg.Name() << endl; | |
145 | cout << "Versions: "; | |
146 | for (pkgCache::VerIterator Cur = Pkg.VersionList(); Cur.end() != true; Cur++) | |
147 | { | |
148 | cout << Cur.VerStr(); | |
149 | for (pkgCache::VerFileIterator Vf = Cur.FileList(); Vf.end() == false; Vf++) | |
150 | cout << "(" << Vf.File().FileName() << ")"; | |
151 | cout << ','; | |
152 | } | |
153 | ||
154 | cout << endl; | |
155 | ||
156 | cout << "Reverse Depends: " << endl; | |
157 | for (pkgCache::DepIterator D = Pkg.RevDependsList(); D.end() != true; D++) | |
158 | cout << " " << D.ParentPkg().Name() << ',' << D.TargetPkg().Name() << endl; | |
159 | ||
160 | cout << "Dependencies: " << endl; | |
161 | for (pkgCache::VerIterator Cur = Pkg.VersionList(); Cur.end() != true; Cur++) | |
162 | { | |
163 | cout << Cur.VerStr() << " - "; | |
164 | for (pkgCache::DepIterator Dep = Cur.DependsList(); Dep.end() != true; Dep++) | |
165 | cout << Dep.TargetPkg().Name() << " (" << (int)Dep->CompareOp << " " << Dep.TargetVer() << ") "; | |
166 | cout << endl; | |
167 | } | |
168 | ||
169 | cout << "Provides: " << endl; | |
170 | for (pkgCache::VerIterator Cur = Pkg.VersionList(); Cur.end() != true; Cur++) | |
171 | { | |
172 | cout << Cur.VerStr() << " - "; | |
173 | for (pkgCache::PrvIterator Prv = Cur.ProvidesList(); Prv.end() != true; Prv++) | |
174 | cout << Prv.ParentPkg().Name() << " "; | |
175 | cout << endl; | |
176 | } | |
177 | cout << "Reverse Provides: " << endl; | |
178 | for (pkgCache::PrvIterator Prv = Pkg.ProvidesList(); Prv.end() != true; Prv++) | |
179 | cout << Prv.OwnerPkg().Name() << " " << Prv.OwnerVer().VerStr(); | |
180 | cout << endl; | |
181 | ||
182 | } | |
183 | ||
184 | return true; | |
185 | } | |
186 | /*}}}*/ | |
187 | // Stats - Dump some nice statistics /*{{{*/ | |
188 | // --------------------------------------------------------------------- | |
189 | /* */ | |
190 | bool Stats(CommandLine &Cmd) | |
191 | { | |
192 | pkgCache &Cache = *GCache; | |
193 | cout << "Total Package Names : " << Cache.Head().PackageCount << " (" << | |
194 | SizeToStr(Cache.Head().PackageCount*Cache.Head().PackageSz) << ')' << endl; | |
195 | pkgCache::PkgIterator I = Cache.PkgBegin(); | |
196 | ||
197 | int Normal = 0; | |
198 | int Virtual = 0; | |
199 | int NVirt = 0; | |
200 | int DVirt = 0; | |
201 | int Missing = 0; | |
202 | for (;I.end() != true; I++) | |
203 | { | |
204 | if (I->VersionList != 0 && I->ProvidesList == 0) | |
205 | { | |
206 | Normal++; | |
207 | continue; | |
208 | } | |
209 | ||
210 | if (I->VersionList != 0 && I->ProvidesList != 0) | |
211 | { | |
212 | NVirt++; | |
213 | continue; | |
214 | } | |
215 | ||
216 | if (I->VersionList == 0 && I->ProvidesList != 0) | |
217 | { | |
218 | // Only 1 provides | |
219 | if (I.ProvidesList()->NextProvides == 0) | |
220 | { | |
221 | DVirt++; | |
222 | } | |
223 | else | |
224 | Virtual++; | |
225 | continue; | |
226 | } | |
227 | if (I->VersionList == 0 && I->ProvidesList == 0) | |
228 | { | |
229 | Missing++; | |
230 | continue; | |
231 | } | |
232 | } | |
233 | cout << " Normal Packages: " << Normal << endl; | |
234 | cout << " Pure Virtual Packages: " << Virtual << endl; | |
235 | cout << " Single Virtual Packages: " << DVirt << endl; | |
236 | cout << " Mixed Virtual Packages: " << NVirt << endl; | |
237 | cout << " Missing: " << Missing << endl; | |
238 | ||
239 | cout << "Total Distinct Versions: " << Cache.Head().VersionCount << " (" << | |
240 | SizeToStr(Cache.Head().VersionCount*Cache.Head().VersionSz) << ')' << endl; | |
241 | cout << "Total Dependencies: " << Cache.Head().DependsCount << " (" << | |
242 | SizeToStr(Cache.Head().DependsCount*Cache.Head().DependencySz) << ')' << endl; | |
243 | ||
244 | cout << "Total Ver/File relations: " << Cache.Head().VerFileCount << " (" << | |
245 | SizeToStr(Cache.Head().VerFileCount*Cache.Head().VerFileSz) << ')' << endl; | |
246 | cout << "Total Provides Mappings: " << Cache.Head().ProvidesCount << " (" << | |
247 | SizeToStr(Cache.Head().ProvidesCount*Cache.Head().ProvidesSz) << ')' << endl; | |
248 | ||
249 | // String list stats | |
250 | unsigned long Size = 0; | |
251 | unsigned long Count = 0; | |
252 | for (pkgCache::StringItem *I = Cache.StringItemP + Cache.Head().StringList; | |
253 | I!= Cache.StringItemP; I = Cache.StringItemP + I->NextItem) | |
254 | { | |
255 | Count++; | |
256 | Size += strlen(Cache.StrP + I->String); | |
257 | } | |
258 | cout << "Total Globbed Strings: " << Count << " (" << SizeToStr(Size) << ')' << endl; | |
259 | ||
260 | unsigned long Slack = 0; | |
261 | for (int I = 0; I != 7; I++) | |
262 | Slack += Cache.Head().Pools[I].ItemSize*Cache.Head().Pools[I].Count; | |
263 | cout << "Total Slack space: " << SizeToStr(Slack) << endl; | |
264 | ||
265 | unsigned long Total = 0; | |
266 | Total = Slack + Size + Cache.Head().DependsCount*Cache.Head().DependencySz + | |
267 | Cache.Head().VersionCount*Cache.Head().VersionSz + | |
268 | Cache.Head().PackageCount*Cache.Head().PackageSz + | |
269 | Cache.Head().VerFileCount*Cache.Head().VerFileSz + | |
270 | Cache.Head().ProvidesCount*Cache.Head().ProvidesSz; | |
271 | cout << "Total Space Accounted for: " << SizeToStr(Total) << endl; | |
272 | ||
273 | return true; | |
274 | } | |
275 | /*}}}*/ | |
276 | // Check - Check some things about the cache /*{{{*/ | |
277 | // --------------------------------------------------------------------- | |
278 | /* Debug aide mostly */ | |
279 | bool Check(CommandLine &Cmd) | |
280 | { | |
281 | pkgCache &Cache = *GCache; | |
282 | pkgCache::PkgIterator Pkg = Cache.PkgBegin(); | |
283 | for (;Pkg.end() != true; Pkg++) | |
284 | { | |
285 | if (Pkg.Section() == 0 && Pkg->VersionList != 0) | |
286 | cout << "Bad section " << Pkg.Name() << endl; | |
287 | ||
288 | for (pkgCache::VerIterator Cur = Pkg.VersionList(); | |
289 | Cur.end() != true; Cur++) | |
290 | { | |
291 | if (Cur->Priority < 1 || Cur->Priority > 5) | |
292 | cout << "Bad prio " << Pkg.Name() << ',' << Cur.VerStr() << " == " << (int)Cur->Priority << endl; | |
293 | } | |
294 | } | |
295 | return true; | |
296 | } | |
297 | /*}}}*/ | |
298 | // Dump - show everything /*{{{*/ | |
299 | // --------------------------------------------------------------------- | |
300 | /* */ | |
301 | bool Dump(CommandLine &Cmd) | |
302 | { | |
303 | pkgCache &Cache = *GCache; | |
304 | for (pkgCache::PkgIterator P = Cache.PkgBegin(); P.end() == false; P++) | |
305 | { | |
306 | cout << "Package: " << P.Name() << endl; | |
307 | for (pkgCache::VerIterator V = P.VersionList(); V.end() == false; V++) | |
308 | { | |
309 | cout << " Version: " << V.VerStr() << endl; | |
310 | cout << " File: " << V.FileList().File().FileName() << endl; | |
311 | for (pkgCache::DepIterator D = V.DependsList(); D.end() == false; D++) | |
312 | cout << " Depends: " << D.TargetPkg().Name() << ' ' << D.TargetVer() << endl; | |
313 | } | |
314 | } | |
315 | ||
316 | for (pkgCache::PkgFileIterator F(Cache); F.end() == false; F++) | |
317 | { | |
318 | cout << "File: " << F.FileName() << endl; | |
319 | cout << " Size: " << F->Size << endl; | |
320 | cout << " ID: " << F->ID << endl; | |
321 | cout << " Flags: " << F->Flags << endl; | |
322 | cout << " Time: " << TimeRFC1123(F->mtime) << endl; | |
323 | cout << " Archive: " << F.Archive() << endl; | |
324 | cout << " Component: " << F.Component() << endl; | |
325 | cout << " Version: " << F.Version() << endl; | |
326 | cout << " Origin: " << F.Origin() << endl; | |
327 | cout << " Label: " << F.Label() << endl; | |
328 | cout << " Architecture: " << F.Architecture() << endl; | |
329 | } | |
330 | ||
331 | return true; | |
332 | } | |
333 | /*}}}*/ | |
334 | // DumpAvail - Print out the available list /*{{{*/ | |
335 | // --------------------------------------------------------------------- | |
336 | /* This is needed to make dpkg --merge happy */ | |
337 | bool DumpAvail(CommandLine &Cmd) | |
338 | { | |
339 | pkgCache &Cache = *GCache; | |
340 | unsigned char *Buffer = new unsigned char[Cache.HeaderP->MaxVerFileSize]; | |
341 | ||
342 | for (pkgCache::PkgFileIterator I = Cache.FileBegin(); I.end() == false; I++) | |
343 | { | |
344 | if ((I->Flags & pkgCache::Flag::NotSource) != 0) | |
345 | continue; | |
346 | ||
347 | if (I.IsOk() == false) | |
348 | { | |
349 | delete [] Buffer; | |
350 | return _error->Error("Package file %s is out of sync.",I.FileName()); | |
351 | } | |
352 | ||
353 | FileFd PkgF(I.FileName(),FileFd::ReadOnly); | |
354 | if (_error->PendingError() == true) | |
355 | { | |
356 | delete [] Buffer; | |
357 | return false; | |
358 | } | |
359 | ||
360 | /* Write all of the records from this package file, we search the entire | |
361 | structure to find them */ | |
362 | for (pkgCache::PkgIterator P = Cache.PkgBegin(); P.end() == false; P++) | |
363 | { | |
364 | // Find the proper version to use. We should probably use the DepCache. | |
365 | pkgCache::VerIterator V = Cache.GetCandidateVer(P,false); | |
366 | ||
367 | if (V.end() == true || V.FileList().File() != I) | |
368 | continue; | |
369 | ||
370 | // Read the record and then write it out again. | |
371 | if (PkgF.Seek(V.FileList()->Offset) == false || | |
372 | PkgF.Read(Buffer,V.FileList()->Size) == false || | |
373 | write(STDOUT_FILENO,Buffer,V.FileList()->Size) != V.FileList()->Size) | |
374 | { | |
375 | delete [] Buffer; | |
376 | return false; | |
377 | } | |
378 | } | |
379 | } | |
380 | ||
381 | return true; | |
382 | } | |
383 | /*}}}*/ | |
384 | // DoAdd - Perform an adding operation /*{{{*/ | |
385 | // --------------------------------------------------------------------- | |
386 | /* */ | |
387 | bool DoAdd(CommandLine &CmdL) | |
388 | { | |
389 | // Make sure there is at least one argument | |
390 | if (CmdL.FileSize() <= 1) | |
391 | return _error->Error("You must give at least one file name"); | |
392 | ||
393 | // Open the cache | |
394 | FileFd CacheF(_config->FindFile("Dir::Cache::pkgcache"),FileFd::WriteAny); | |
395 | if (_error->PendingError() == true) | |
396 | return false; | |
397 | ||
398 | DynamicMMap Map(CacheF,MMap::Public); | |
399 | if (_error->PendingError() == true) | |
400 | return false; | |
401 | ||
402 | OpTextProgress Progress(*_config); | |
403 | pkgCacheGenerator Gen(Map,Progress); | |
404 | if (_error->PendingError() == true) | |
405 | return false; | |
406 | ||
407 | unsigned long Length = CmdL.FileSize() - 1; | |
408 | for (const char **I = CmdL.FileList + 1; *I != 0; I++) | |
409 | { | |
410 | Progress.OverallProgress(I - CmdL.FileList,Length,1,"Generating cache"); | |
411 | Progress.SubProgress(Length); | |
412 | ||
413 | // Do the merge | |
414 | FileFd TagF(*I,FileFd::ReadOnly); | |
415 | debListParser Parser(TagF); | |
416 | if (_error->PendingError() == true) | |
417 | return _error->Error("Problem opening %s",*I); | |
418 | ||
419 | if (Gen.SelectFile(*I) == false) | |
420 | return _error->Error("Problem with SelectFile"); | |
421 | ||
422 | if (Gen.MergeList(Parser) == false) | |
423 | return _error->Error("Problem with MergeList"); | |
424 | } | |
425 | ||
426 | Progress.Done(); | |
427 | GCache = &Gen.GetCache(); | |
428 | Stats(CmdL); | |
429 | ||
430 | return true; | |
431 | } | |
432 | /*}}}*/ | |
433 | // DisplayRecord - Displays the complete record for the package /*{{{*/ | |
434 | // --------------------------------------------------------------------- | |
435 | /* This displays the package record from the proper package index file. | |
436 | It is not used by DumpAvail for performance reasons. */ | |
437 | bool DisplayRecord(pkgCache::VerIterator V) | |
438 | { | |
439 | // Find an appropriate file | |
440 | pkgCache::VerFileIterator Vf = V.FileList(); | |
441 | for (; Vf.end() == false; Vf++) | |
442 | if ((Vf.File()->Flags & pkgCache::Flag::NotSource) == 0) | |
443 | break; | |
444 | if (Vf.end() == true) | |
445 | Vf = V.FileList(); | |
446 | ||
447 | // Check and load the package list file | |
448 | pkgCache::PkgFileIterator I = Vf.File(); | |
449 | if (I.IsOk() == false) | |
450 | return _error->Error("Package file %s is out of sync.",I.FileName()); | |
451 | ||
452 | FileFd PkgF(I.FileName(),FileFd::ReadOnly); | |
453 | if (_error->PendingError() == true) | |
454 | return false; | |
455 | ||
456 | // Read the record and then write it out again. | |
457 | unsigned char *Buffer = new unsigned char[GCache->HeaderP->MaxVerFileSize]; | |
458 | if (PkgF.Seek(V.FileList()->Offset) == false || | |
459 | PkgF.Read(Buffer,V.FileList()->Size) == false || | |
460 | write(STDOUT_FILENO,Buffer,V.FileList()->Size) != V.FileList()->Size) | |
461 | { | |
462 | delete [] Buffer; | |
463 | return false; | |
464 | } | |
465 | ||
466 | delete [] Buffer; | |
467 | ||
468 | return true; | |
469 | } | |
470 | /*}}}*/ | |
471 | // Search - Perform a search /*{{{*/ | |
472 | // --------------------------------------------------------------------- | |
473 | /* This searches the package names and pacakge descriptions for a pattern */ | |
474 | bool Search(CommandLine &CmdL) | |
475 | { | |
476 | pkgCache &Cache = *GCache; | |
477 | bool ShowFull = _config->FindB("APT::Cache::ShowFull",false); | |
478 | bool NamesOnly = _config->FindB("APT::Cache::NamesOnly",false); | |
479 | ||
480 | // Make sure there is at least one argument | |
481 | if (CmdL.FileSize() != 2) | |
482 | return _error->Error("You must give exactly one pattern"); | |
483 | ||
484 | // Compile the regex pattern | |
485 | regex_t Pattern; | |
486 | if (regcomp(&Pattern,CmdL.FileList[1],REG_EXTENDED | REG_ICASE | | |
487 | REG_NOSUB) != 0) | |
488 | return _error->Error("Regex compilation error"); | |
489 | ||
490 | // Create the text record parser | |
491 | pkgRecords Recs(Cache); | |
492 | if (_error->PendingError() == true) | |
493 | return false; | |
494 | ||
495 | // Search package names | |
496 | pkgCache::PkgIterator I = Cache.PkgBegin(); | |
497 | for (;I.end() != true; I++) | |
498 | { | |
499 | // We search against the install version as that makes the most sense.. | |
500 | pkgCache::VerIterator V = Cache.GetCandidateVer(I); | |
501 | if (V.end() == true) | |
502 | continue; | |
503 | ||
504 | pkgRecords::Parser &P = Recs.Lookup(V.FileList()); | |
505 | ||
506 | if (regexec(&Pattern,I.Name(),0,0,0) == 0 || | |
507 | (NamesOnly == false && | |
508 | regexec(&Pattern,P.LongDesc().c_str(),0,0,0) == 0)) | |
509 | { | |
510 | if (ShowFull == true) | |
511 | DisplayRecord(V); | |
512 | else | |
513 | cout << I.Name() << " - " << P.ShortDesc() << endl; | |
514 | } | |
515 | } | |
516 | ||
517 | regfree(&Pattern); | |
518 | return true; | |
519 | } | |
520 | /*}}}*/ | |
521 | // ShowPackage - Dump the package record to the screen /*{{{*/ | |
522 | // --------------------------------------------------------------------- | |
523 | /* */ | |
524 | bool ShowPackage(CommandLine &CmdL) | |
525 | { | |
526 | pkgCache &Cache = *GCache; | |
527 | for (const char **I = CmdL.FileList + 1; *I != 0; I++) | |
528 | { | |
529 | pkgCache::PkgIterator Pkg = Cache.FindPkg(*I); | |
530 | if (Pkg.end() == true) | |
531 | { | |
532 | _error->Warning("Unable to locate package %s",*I); | |
533 | continue; | |
534 | } | |
535 | ||
536 | // Find the proper version to use. We should probably use the DepCache. | |
537 | pkgCache::VerIterator V = Cache.GetCandidateVer(Pkg); | |
538 | if (V.end() == true || V.FileList().end() == true) | |
539 | continue; | |
540 | if (DisplayRecord(V) == false) | |
541 | return false; | |
542 | } | |
543 | return true; | |
544 | } | |
545 | /*}}}*/ | |
546 | // GenCaches - Call the main cache generator /*{{{*/ | |
547 | // --------------------------------------------------------------------- | |
548 | /* */ | |
549 | bool GenCaches(CommandLine &Cmd) | |
550 | { | |
551 | OpTextProgress Progress(*_config); | |
552 | ||
553 | pkgSourceList List; | |
554 | List.ReadMainList(); | |
555 | return pkgMakeStatusCache(List,Progress); | |
556 | } | |
557 | /*}}}*/ | |
558 | // ShowHelp - Show a help screen /*{{{*/ | |
559 | // --------------------------------------------------------------------- | |
560 | /* */ | |
561 | bool ShowHelp(CommandLine &Cmd) | |
562 | { | |
563 | cout << PACKAGE << ' ' << VERSION << " for " << ARCHITECTURE << | |
564 | " compiled on " << __DATE__ << " " << __TIME__ << endl; | |
565 | if (_config->FindB("version") == true) | |
566 | return 100; | |
567 | ||
568 | cout << "Usage: apt-cache [options] command" << endl; | |
569 | cout << " apt-cache [options] add file1 [file1 ...]" << endl; | |
570 | cout << " apt-cache [options] showpkg pkg1 [pkg2 ...]" << endl; | |
571 | cout << endl; | |
572 | cout << "apt-cache is a low-level tool used to manipulate APT's binary" << endl; | |
573 | cout << "cache files stored in " << _config->FindFile("Dir::Cache") << endl; | |
574 | cout << "It is not ment for ordinary use only as a debug aide." << endl; | |
575 | cout << endl; | |
576 | cout << "Commands:" << endl; | |
577 | cout << " add - Add an package file to the source cache" << endl; | |
578 | cout << " gencaches - Build both the package and source cache" << endl; | |
579 | cout << " showpkg - Show some general information for a single package" << endl; | |
580 | cout << " stats - Show some basic statistics" << endl; | |
581 | cout << " dump - Show the entire file in a terse form" << endl; | |
582 | cout << " dumpavail - Print an available file to stdout" << endl; | |
583 | cout << " unmet - Show unmet dependencies" << endl; | |
584 | cout << " check - Check the cache a bit" << endl; | |
585 | cout << " search - Search the package list for a regex pattern" << endl; | |
586 | cout << " show - Show a readable record for the package" << endl; | |
587 | cout << endl; | |
588 | cout << "Options:" << endl; | |
589 | cout << " -h This help text." << endl; | |
590 | cout << " -p=? The package cache. [" << _config->FindFile("Dir::Cache::pkgcache") << ']' << endl; | |
591 | cout << " -s=? The source cache. [" << _config->FindFile("Dir::Cache::srcpkgcache") << ']' << endl; | |
592 | cout << " -q Disable progress indicator." << endl; | |
593 | cout << " -i Show only important deps for the unmet command." << endl; | |
594 | cout << " -c=? Read this configuration file" << endl; | |
595 | cout << " -o=? Set an arbitary configuration option, eg -o dir::cache=/tmp" << endl; | |
596 | cout << "See the apt-cache(8) and apt.conf(5) manual pages for more information." << endl; | |
597 | return 100; | |
598 | } | |
599 | /*}}}*/ | |
600 | // CacheInitialize - Initialize things for apt-cache /*{{{*/ | |
601 | // --------------------------------------------------------------------- | |
602 | /* */ | |
603 | void CacheInitialize() | |
604 | { | |
605 | _config->Set("quiet",0); | |
606 | _config->Set("help",false); | |
607 | } | |
608 | /*}}}*/ | |
609 | ||
610 | int main(int argc,const char *argv[]) | |
611 | { | |
612 | CommandLine::Args Args[] = { | |
613 | {'h',"help","help",0}, | |
614 | {'v',"version","version",0}, | |
615 | {'p',"pkg-cache","Dir::Cache::pkgcache",CommandLine::HasArg}, | |
616 | {'s',"src-cache","Dir::Cache::srcpkgcache",CommandLine::HasArg}, | |
617 | {'q',"quiet","quiet",CommandLine::IntLevel}, | |
618 | {'i',"important","APT::Cache::Important",0}, | |
619 | {'f',"full","APT::Cache::ShowFull",0}, | |
620 | {0,"names-only","APT::Cache::NamesOnly",0}, | |
621 | {'c',"config-file",0,CommandLine::ConfigFile}, | |
622 | {'o',"option",0,CommandLine::ArbItem}, | |
623 | {0,0,0,0}}; | |
624 | CommandLine::Dispatch CmdsA[] = {{"help",&ShowHelp}, | |
625 | {"add",&DoAdd}, | |
626 | {"gencaches",&GenCaches}, | |
627 | {0,0}}; | |
628 | CommandLine::Dispatch CmdsB[] = {{"showpkg",&DumpPackage}, | |
629 | {"stats",&Stats}, | |
630 | {"dump",&Dump}, | |
631 | {"dumpavail",&DumpAvail}, | |
632 | {"unmet",&UnMet}, | |
633 | {"check",&Check}, | |
634 | {"search",&Search}, | |
635 | {"show",&ShowPackage}, | |
636 | {0,0}}; | |
637 | ||
638 | CacheInitialize(); | |
639 | ||
640 | // Parse the command line and initialize the package library | |
641 | CommandLine CmdL(Args,_config); | |
642 | if (pkgInitialize(*_config) == false || | |
643 | CmdL.Parse(argc,argv) == false) | |
644 | { | |
645 | _error->DumpErrors(); | |
646 | return 100; | |
647 | } | |
648 | ||
649 | // See if the help should be shown | |
650 | if (_config->FindB("help") == true || | |
651 | CmdL.FileSize() == 0) | |
652 | return ShowHelp(CmdL); | |
653 | ||
654 | // Deal with stdout not being a tty | |
655 | if (ttyname(STDOUT_FILENO) == 0 && _config->FindI("quiet",0) < 1) | |
656 | _config->Set("quiet","1"); | |
657 | ||
658 | if (CmdL.DispatchArg(CmdsA,false) == false && _error->PendingError() == false) | |
659 | { | |
660 | // Open the cache file | |
661 | FileFd CacheF(_config->FindFile("Dir::Cache::pkgcache"),FileFd::ReadOnly); | |
662 | MMap Map(CacheF,MMap::Public | MMap::ReadOnly); | |
663 | if (_error->PendingError() == false) | |
664 | { | |
665 | pkgCache Cache(Map); | |
666 | GCache = &Cache; | |
667 | if (_error->PendingError() == false) | |
668 | CmdL.DispatchArg(CmdsB); | |
669 | } | |
670 | } | |
671 | ||
672 | // Print any errors or warnings found during parsing | |
673 | if (_error->empty() == false) | |
674 | { | |
675 | bool Errors = _error->PendingError(); | |
676 | _error->DumpErrors(); | |
677 | return Errors == true?100:0; | |
678 | } | |
679 | ||
680 | return 0; | |
681 | } |