]> git.saurik.com Git - apt.git/blame - apt-pkg/sourcelist.cc
rewrite the pseudo package reinstaller to be more intelligent
[apt.git] / apt-pkg / sourcelist.cc
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1// -*- mode: cpp; mode: fold -*-
2// Description /*{{{*/
34b53501 3// $Id: sourcelist.cc,v 1.3 2002/08/15 20:51:37 niemeyer Exp $
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4/* ######################################################################
5
6 List of Sources
7
8 ##################################################################### */
9 /*}}}*/
10// Include Files /*{{{*/
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11#include <apt-pkg/sourcelist.h>
12#include <apt-pkg/error.h>
13#include <apt-pkg/fileutl.h>
cdcc6d34 14#include <apt-pkg/strutl.h>
7db98ffc 15#include <apt-pkg/configuration.h>
6c139d6e 16
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17#include <apti18n.h>
18
90f057fd 19#include <fstream>
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20 /*}}}*/
21
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22using namespace std;
23
24// Global list of Items supported
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25static pkgSourceList::Type *ItmList[10];
26pkgSourceList::Type **pkgSourceList::Type::GlobalList = ItmList;
27unsigned long pkgSourceList::Type::GlobalListLen = 0;
28
29// Type::Type - Constructor /*{{{*/
30// ---------------------------------------------------------------------
31/* Link this to the global list of items*/
32pkgSourceList::Type::Type()
33{
34 ItmList[GlobalListLen] = this;
35 GlobalListLen++;
36}
37 /*}}}*/
38// Type::GetType - Get a specific meta for a given type /*{{{*/
39// ---------------------------------------------------------------------
40/* */
41pkgSourceList::Type *pkgSourceList::Type::GetType(const char *Type)
42{
43 for (unsigned I = 0; I != GlobalListLen; I++)
44 if (strcmp(GlobalList[I]->Name,Type) == 0)
45 return GlobalList[I];
46 return 0;
47}
48 /*}}}*/
49// Type::FixupURI - Normalize the URI and check it.. /*{{{*/
50// ---------------------------------------------------------------------
51/* */
52bool pkgSourceList::Type::FixupURI(string &URI) const
53{
54 if (URI.empty() == true)
55 return false;
56
57 if (URI.find(':') == string::npos)
58 return false;
59
60 URI = SubstVar(URI,"$(ARCH)",_config->Find("APT::Architecture"));
61
a7c835af 62 // Make sure that the URI is / postfixed
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63 if (URI[URI.size() - 1] != '/')
64 URI += '/';
65
66 return true;
67}
68 /*}}}*/
69// Type::ParseLine - Parse a single line /*{{{*/
70// ---------------------------------------------------------------------
71/* This is a generic one that is the 'usual' format for sources.list
72 Weird types may override this. */
7db98ffc 73bool pkgSourceList::Type::ParseLine(vector<metaIndex *> &List,
b2e465d6 74 const char *Buffer,
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75 unsigned long const &CurLine,
76 string const &File) const
b2e465d6 77{
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78 for (;Buffer != 0 && isspace(*Buffer); ++Buffer); // Skip whitespaces
79
80 // Parse option field if it exists
81 // e.g.: [ option1=value1 option2=value2 ]
82 map<string, string> Options;
83 if (Buffer != 0 && Buffer[0] == '[')
84 {
85 ++Buffer; // ignore the [
86 for (;Buffer != 0 && isspace(*Buffer); ++Buffer); // Skip whitespaces
87 while (*Buffer != ']')
88 {
89 // get one option, e.g. option1=value1
90 string option;
91 if (ParseQuoteWord(Buffer,option) == false)
92 return _error->Error(_("Malformed line %lu in source list %s ([option] unparseable)"),CurLine,File.c_str());
93
94 if (option.length() < 3)
95 return _error->Error(_("Malformed line %lu in source list %s ([option] too short)"),CurLine,File.c_str());
96
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97 // accept options even if the last has no space before the ]-end marker
98 if (option.at(option.length()-1) == ']')
99 {
100 for (; *Buffer != ']'; --Buffer);
101 option.resize(option.length()-1);
102 }
103
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104 size_t const needle = option.find('=');
105 if (needle == string::npos)
106 return _error->Error(_("Malformed line %lu in source list %s ([%s] is not an assignment)"),CurLine,File.c_str(), option.c_str());
107
108 string const key = string(option, 0, needle);
109 string const value = string(option, needle + 1, option.length());
110
111 if (key.empty() == true)
112 return _error->Error(_("Malformed line %lu in source list %s ([%s] has no key)"),CurLine,File.c_str(), option.c_str());
113
114 if (value.empty() == true)
115 return _error->Error(_("Malformed line %lu in source list %s ([%s] key %s has no value)"),CurLine,File.c_str(),option.c_str(),key.c_str());
116
117 Options[key] = value;
118 }
119 ++Buffer; // ignore the ]
120 for (;Buffer != 0 && isspace(*Buffer); ++Buffer); // Skip whitespaces
121 }
122
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123 string URI;
124 string Dist;
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125 string Section;
126
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127 if (ParseQuoteWord(Buffer,URI) == false)
128 return _error->Error(_("Malformed line %lu in source list %s (URI)"),CurLine,File.c_str());
129 if (ParseQuoteWord(Buffer,Dist) == false)
130 return _error->Error(_("Malformed line %lu in source list %s (dist)"),CurLine,File.c_str());
131
132 if (FixupURI(URI) == false)
133 return _error->Error(_("Malformed line %lu in source list %s (URI parse)"),CurLine,File.c_str());
134
135 // Check for an absolute dists specification.
136 if (Dist.empty() == false && Dist[Dist.size() - 1] == '/')
137 {
138 if (ParseQuoteWord(Buffer,Section) == true)
db0db9fe 139 return _error->Error(_("Malformed line %lu in source list %s (absolute dist)"),CurLine,File.c_str());
b2e465d6 140 Dist = SubstVar(Dist,"$(ARCH)",_config->Find("APT::Architecture"));
5dd4c8b8 141 return CreateItem(List, URI, Dist, Section, Options);
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142 }
143
144 // Grab the rest of the dists
145 if (ParseQuoteWord(Buffer,Section) == false)
146 return _error->Error(_("Malformed line %lu in source list %s (dist parse)"),CurLine,File.c_str());
147
148 do
149 {
5dd4c8b8 150 if (CreateItem(List, URI, Dist, Section, Options) == false)
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151 return false;
152 }
153 while (ParseQuoteWord(Buffer,Section) == true);
154
155 return true;
156}
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157 /*}}}*/
158
159// SourceList::pkgSourceList - Constructors /*{{{*/
160// ---------------------------------------------------------------------
161/* */
162pkgSourceList::pkgSourceList()
163{
164}
165
166pkgSourceList::pkgSourceList(string File)
167{
168 Read(File);
169}
170 /*}}}*/
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171// SourceList::~pkgSourceList - Destructor /*{{{*/
172// ---------------------------------------------------------------------
173/* */
174pkgSourceList::~pkgSourceList()
175{
176 for (const_iterator I = SrcList.begin(); I != SrcList.end(); I++)
177 delete *I;
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178}
179 /*}}}*/
a7c835af 180 /*}}}*/
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181// SourceList::ReadMainList - Read the main source list from etc /*{{{*/
182// ---------------------------------------------------------------------
183/* */
184bool pkgSourceList::ReadMainList()
185{
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186 // CNC:2003-03-03 - Multiple sources list support.
187 bool Res = true;
188#if 0
189 Res = ReadVendors();
190 if (Res == false)
191 return false;
192#endif
193
194 Reset();
195 // CNC:2003-11-28 - Entries in sources.list have priority over
196 // entries in sources.list.d.
197 string Main = _config->FindFile("Dir::Etc::sourcelist");
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198 string Parts = _config->FindDir("Dir::Etc::sourceparts");
199
34b53501 200 if (FileExists(Main) == true)
6009e60d 201 Res &= ReadAppend(Main);
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202 else if (FileExists(Parts) == false)
203 // Only warn if there are no sources.list.d.
6009e60d 204 _error->WarningE("FileExists",_("Unable to read %s"),Main.c_str());
34b53501 205
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206 if (FileExists(Parts) == true)
207 Res &= ReadSourceDir(Parts);
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208 else if (FileExists(Main) == false)
209 // Only warn if there is no sources.list file.
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210 _error->WarningE("FileExists",_("Unable to read %s"),Parts.c_str());
211
34b53501 212 return Res;
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213}
214 /*}}}*/
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215// CNC:2003-03-03 - Needed to preserve backwards compatibility.
216// SourceList::Reset - Clear the sourcelist contents /*{{{*/
217// ---------------------------------------------------------------------
218/* */
219void pkgSourceList::Reset()
220{
221 for (const_iterator I = SrcList.begin(); I != SrcList.end(); I++)
222 delete *I;
223 SrcList.erase(SrcList.begin(),SrcList.end());
224}
225 /*}}}*/
226// CNC:2003-03-03 - Function moved to ReadAppend() and Reset().
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227// SourceList::Read - Parse the sourcelist file /*{{{*/
228// ---------------------------------------------------------------------
229/* */
230bool pkgSourceList::Read(string File)
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231{
232 Reset();
233 return ReadAppend(File);
234}
235 /*}}}*/
236// SourceList::ReadAppend - Parse a sourcelist file /*{{{*/
237// ---------------------------------------------------------------------
238/* */
239bool pkgSourceList::ReadAppend(string File)
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240{
241 // Open the stream for reading
4d6f8bdf 242 ifstream F(File.c_str(),ios::in /*| ios::nocreate*/);
6c139d6e 243 if (!F != 0)
b2e465d6 244 return _error->Errno("ifstream::ifstream",_("Opening %s"),File.c_str());
6c139d6e 245
34b53501 246#if 0 // Now Reset() does this.
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247 for (const_iterator I = SrcList.begin(); I != SrcList.end(); I++)
248 delete *I;
a7c835af 249 SrcList.erase(SrcList.begin(),SrcList.end());
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250#endif
251 // CNC:2003-12-10 - 300 is too short.
252 char Buffer[1024];
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253
254 int CurLine = 0;
255 while (F.eof() == false)
256 {
257 F.getline(Buffer,sizeof(Buffer));
258 CurLine++;
259 _strtabexpand(Buffer,sizeof(Buffer));
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260 if (F.fail() && !F.eof())
261 return _error->Error(_("Line %u too long in source list %s."),
262 CurLine,File.c_str());
263
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264
265 char *I;
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266 // CNC:2003-02-20 - Do not break if '#' is inside [].
267 for (I = Buffer; *I != 0 && *I != '#'; I++)
268 if (*I == '[')
269 for (I++; *I != 0 && *I != ']'; I++);
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270 *I = 0;
271
272 const char *C = _strstrip(Buffer);
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273
274 // Comment or blank
b2e465d6 275 if (C[0] == '#' || C[0] == 0)
6c139d6e 276 continue;
b2e465d6 277
6c139d6e 278 // Grok it
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279 string LineType;
280 if (ParseQuoteWord(C,LineType) == false)
281 return _error->Error(_("Malformed line %u in source list %s (type)"),CurLine,File.c_str());
6c139d6e 282
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283 Type *Parse = Type::GetType(LineType.c_str());
284 if (Parse == 0)
39442e44 285 return _error->Error(_("Type '%s' is not known on line %u in source list %s"),LineType.c_str(),CurLine,File.c_str());
6c139d6e 286
5dd4c8b8 287 if (Parse->ParseLine(SrcList, C, CurLine, File) == false)
b2e465d6 288 return false;
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289 }
290 return true;
291}
292 /*}}}*/
b2e465d6 293// SourceList::FindIndex - Get the index associated with a file /*{{{*/
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294// ---------------------------------------------------------------------
295/* */
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296bool pkgSourceList::FindIndex(pkgCache::PkgFileIterator File,
297 pkgIndexFile *&Found) const
6c139d6e 298{
a7c835af 299 for (const_iterator I = SrcList.begin(); I != SrcList.end(); I++)
6c139d6e 300 {
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301 vector<pkgIndexFile *> *Indexes = (*I)->GetIndexFiles();
302 for (vector<pkgIndexFile *>::const_iterator J = Indexes->begin();
303 J != Indexes->end(); J++)
b2e465d6 304 {
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305 if ((*J)->FindInCache(*File.Cache()) == File)
306 {
307 Found = (*J);
308 return true;
309 }
b2e465d6 310 }
be8922fd 311 }
7db98ffc 312
b2e465d6 313 return false;
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314}
315 /*}}}*/
b2e465d6 316// SourceList::GetIndexes - Load the index files into the downloader /*{{{*/
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317// ---------------------------------------------------------------------
318/* */
7db98ffc 319bool pkgSourceList::GetIndexes(pkgAcquire *Owner, bool GetAll) const
6c139d6e 320{
a7c835af 321 for (const_iterator I = SrcList.begin(); I != SrcList.end(); I++)
7db98ffc 322 if ((*I)->GetIndexes(Owner,GetAll) == false)
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323 return false;
324 return true;
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325}
326 /*}}}*/
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327// CNC:2003-03-03 - By Anton V. Denisov <avd@altlinux.org>.
328// SourceList::ReadSourceDir - Read a directory with sources files
329// Based on ReadConfigDir() /*{{{*/
330// ---------------------------------------------------------------------
331/* */
332bool pkgSourceList::ReadSourceDir(string Dir)
333{
52643bec 334 vector<string> const List = GetListOfFilesInDir(Dir, "list", true);
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335
336 // Read the files
337 for (vector<string>::const_iterator I = List.begin(); I != List.end(); I++)
338 if (ReadAppend(*I) == false)
339 return false;
340 return true;
341
342}
343 /*}}}*/
344