]> git.saurik.com Git - apt.git/blobdiff - cmdline/apt-get.cc
provide a public interface for acquiring changelogs
[apt.git] / cmdline / apt-get.cc
index c1f78523c1cd050a9683468dc2201d5b9669ffab..184b51d23cbf1a2d74419fcbd5fc033cc1cdefc2 100644 (file)
@@ -86,6 +86,7 @@
 #include <algorithm>
 #include <fstream>
 #include <iostream>
+#include <sstream>
 #include <set>
 #include <string>
 #include <vector>
@@ -1409,196 +1410,175 @@ static bool DoBuildDep(CommandLine &CmdL)
    return true;
 }
                                                                        /*}}}*/
-// GetChangelogPath - return a path pointing to a changelog file or dir /*{{{*/
-// ---------------------------------------------------------------------
-/* This returns a "path" string for the changelog url construction.
- * Please note that its not complete, it either needs a "/changelog"
- * appended (for the packages.debian.org/changelogs site) or a
- * ".changelog" (for third party sites that store the changelog in the
- * pool/ next to the deb itself)
- * Example return: "pool/main/a/apt/apt_0.8.8ubuntu3" 
- */
-static string GetChangelogPath(CacheFile &Cache,
-                        pkgCache::VerIterator Ver)
-{
-   pkgRecords Recs(Cache);
-   pkgRecords::Parser &rec=Recs.Lookup(Ver.FileList());
-   string path = flNotFile(rec.FileName());
-#if APT_PKG_ABI >= 413
-   path.append(Ver.SourcePkgName());
-   path.append("_");
-   path.append(StripEpoch(Ver.SourceVerStr()));
-#else
-   string srcpkg = rec.SourcePkg().empty() ? Ver.ParentPkg().Name() : rec.SourcePkg();
-   string ver = Ver.VerStr();
-   // if there is a source version it always wins
-   if (rec.SourceVer() != "")
-      ver = rec.SourceVer();
-   path += srcpkg + "_" + StripEpoch(ver);
-#endif
-   return path;
-}
-                                                                       /*}}}*/
-// GuessThirdPartyChangelogUri - return url                            /*{{{*/
-// ---------------------------------------------------------------------
-/* Contruct a changelog file path for third party sites that do not use
- * packages.debian.org/changelogs
- * This simply uses the ArchiveURI() of the source pkg and looks for
- * a .changelog file there, Example for "mediabuntu":
- * apt-get changelog mplayer-doc:
- *  http://packages.medibuntu.org/pool/non-free/m/mplayer/mplayer_1.0~rc4~try1.dsfg1-1ubuntu1+medibuntu1.changelog
- */
-static bool GuessThirdPartyChangelogUri(CacheFile &Cache, 
-                                 pkgCache::VerIterator Ver,
-                                 string &out_uri)
-{
-   // get the binary deb server path
-   pkgCache::VerFileIterator Vf = Ver.FileList();
-   if (Vf.end() == true)
-      return false;
-   pkgCache::PkgFileIterator F = Vf.File();
-   pkgIndexFile *index;
-   pkgSourceList *SrcList = Cache.GetSourceList();
-   if(SrcList->FindIndex(F, index) == false)
-      return false;
-
-   // get archive uri for the binary deb
-   string path_without_dot_changelog = GetChangelogPath(Cache, Ver);
-   out_uri = index->ArchiveURI(path_without_dot_changelog + ".changelog");
-
-   // now strip away the filename and add srcpkg_srcver.changelog
-   return true;
-}
-                                                                       /*}}}*/
-// DownloadChangelog - Download the changelog                          /*{{{*/
-// ---------------------------------------------------------------------
-static bool DownloadChangelog(CacheFile &CacheFile, pkgAcquire &Fetcher, 
-                       pkgCache::VerIterator Ver, string targetfile)
-/* Download a changelog file for the given package version to
- * targetfile. This will first try the server from Apt::Changelogs::Server
- * (http://packages.debian.org/changelogs by default) and if that gives
- * a 404 tries to get it from the archive directly (see 
- * GuessThirdPartyChangelogUri for details how)
- */
-{
-   // make the server root configurable
-   string const server = _config->Find("Apt::Changelogs::Server",
-                          "http://packages.debian.org/changelogs");
-   string const path = GetChangelogPath(CacheFile, Ver);
-   string changelog_uri;
-   if (APT::String::Endswith(server, "/") == true)
-      strprintf(changelog_uri, "%s%s/changelog", server.c_str(), path.c_str());
-   else
-      strprintf(changelog_uri, "%s/%s/changelog", server.c_str(), path.c_str());
-   if (_config->FindB("APT::Get::Print-URIs", false) == true)
-   {
-      std::cout << '\'' << changelog_uri << '\'' << std::endl;
-      return true;
-   }
-   pkgCache::PkgIterator const Pkg = Ver.ParentPkg();
-
-   string descr;
-   strprintf(descr, _("Changelog for %s (%s)"), Pkg.Name(), changelog_uri.c_str());
-   // queue it
-   pkgAcquire::Item const * itm = new pkgAcqFile(&Fetcher, changelog_uri, "", 0, descr, Pkg.Name(), "ignored", targetfile);
-
-   // Disable drop-privs if "_apt" can not write to the target dir
-   CheckDropPrivsMustBeDisabled(Fetcher);
-
-   // try downloading it, if that fails, try third-party-changelogs location
-   // FIXME: Fetcher.Run() is "Continue" even if I get a 404?!?
-   Fetcher.Run();
-   if (itm->Status != pkgAcquire::Item::StatDone)
-   {
-      string third_party_uri;
-      if (GuessThirdPartyChangelogUri(CacheFile, Ver, third_party_uri))
-      {
-         strprintf(descr, _("Changelog for %s (%s)"), Pkg.Name(), third_party_uri.c_str());
-         itm = new pkgAcqFile(&Fetcher, third_party_uri, "", 0, descr, Pkg.Name(), "ignored", targetfile);
-         Fetcher.Run();
-      }
-   }
-
-   if (itm->Status == pkgAcquire::Item::StatDone)
-      return true;
-
-   // error
-   return _error->Error("changelog download failed");
-}
-                                                                       /*}}}*/
 // DoChangelog - Get changelog from the command line                   /*{{{*/
-// ---------------------------------------------------------------------
 static bool DoChangelog(CommandLine &CmdL)
 {
    CacheFile Cache;
    if (Cache.ReadOnlyOpen() == false)
       return false;
-   
+
    APT::CacheSetHelper helper;
    APT::VersionList verset = APT::VersionList::FromCommandLine(Cache,
                CmdL.FileList + 1, APT::CacheSetHelper::CANDIDATE, helper);
    if (verset.empty() == true)
       return false;
    pkgAcquire Fetcher;
+   AcqTextStatus Stat(std::cout, ScreenWidth,_config->FindI("quiet",0));
+   Fetcher.SetLog(&Stat);
+
+   bool const downOnly = _config->FindB("APT::Get::Download-Only", false);
+   bool const printOnly = _config->FindB("APT::Get::Print-URIs", false);
 
-   if (_config->FindB("APT::Get::Print-URIs", false) == true)
+   for (APT::VersionList::const_iterator Ver = verset.begin();
+        Ver != verset.end();
+        ++Ver)
    {
-      bool Success = true;
-      for (APT::VersionList::const_iterator Ver = verset.begin();
-          Ver != verset.end(); ++Ver)
-        Success &= DownloadChangelog(Cache, Fetcher, Ver, "");
-      return Success;
+      if (printOnly)
+        new pkgAcqChangelog(&Fetcher, Ver, "/dev/null");
+      else if (downOnly)
+        new pkgAcqChangelog(&Fetcher, Ver, ".");
+      else
+        new pkgAcqChangelog(&Fetcher, Ver);
    }
 
-   AcqTextStatus Stat(std::cout, ScreenWidth,_config->FindI("quiet",0));
-   Fetcher.SetLog(&Stat);
+   if (printOnly == false)
+   {
+      // Disable drop-privs if "_apt" can not write to the target dir
+      CheckDropPrivsMustBeDisabled(Fetcher);
+      if (_error->PendingError() == true)
+        return false;
 
-   bool const downOnly = _config->FindB("APT::Get::Download-Only", false);
+      bool Failed = false;
+      if (AcquireRun(Fetcher, 0, &Failed, NULL) == false || Failed == true)
+        return false;
+   }
 
-   char tmpname[100];
-   const char* tmpdir = NULL;
-   if (downOnly == false)
+   if (downOnly == false || printOnly == true)
    {
-      std::string systemTemp = GetTempDir();
-      snprintf(tmpname, sizeof(tmpname), "%s/apt-changelog-XXXXXX", 
-               systemTemp.c_str());
-      tmpdir = mkdtemp(tmpname);
-      if (tmpdir == NULL)
-        return _error->Errno("mkdtemp", "mkdtemp failed");
-
-      std::string const SandboxUser = _config->Find("APT::Sandbox::User");
-      if (getuid() == 0 && SandboxUser.empty() == false) // if we aren't root, we can't chown, so don't try it
+      bool Failed = false;
+      for (pkgAcquire::ItemIterator I = Fetcher.ItemsBegin(); I != Fetcher.ItemsEnd(); ++I)
       {
-        struct passwd const * const pw = getpwnam(SandboxUser.c_str());
-        struct group const * const gr = getgrnam("root");
-        if (pw != NULL && gr != NULL)
+        if (printOnly)
         {
-           // chown the tmp dir directory we use to the sandbox user
-           if(chown(tmpdir, pw->pw_uid, gr->gr_gid) != 0)
-              _error->WarningE("DoChangelog", "chown to %s:%s of directory %s failed", SandboxUser.c_str(), "root", tmpdir);
+           if ((*I)->ErrorText.empty() == false)
+           {
+              Failed = true;
+              _error->Error("%s", (*I)->ErrorText.c_str());
+           }
+           else
+              cout << '\'' << (*I)->DescURI() << "' " << flNotDir((*I)->DestFile)  << std::endl;
         }
+        else
+           DisplayFileInPager((*I)->DestFile);
       }
+      return Failed == false;
    }
 
-   for (APT::VersionList::const_iterator Ver = verset.begin(); 
-        Ver != verset.end(); 
-        ++Ver) 
+   return true;
+}
+                                                                       /*}}}*/
+// DoFiles - Lists all IndexTargets                                    /*{{{*/
+static std::string format_key(std::string key)
+{
+   // deb822 is case-insensitive, but the human eye prefers candy
+   std::transform(key.begin(), key.end(), key.begin(), ::tolower);
+   key[0] = ::toupper(key[0]);
+   size_t found = key.find("_uri");
+   if (found != std::string::npos)
+      key.replace(found, 4, "-URI");
+   while ((found = key.find('_')) != std::string::npos)
    {
-      string changelogfile;
-      if (downOnly == false)
-        changelogfile.append(tmpname).append("/changelog");
-      else
-        changelogfile.append(Ver.ParentPkg().Name()).append(".changelog");
-      if (DownloadChangelog(Cache, Fetcher, Ver, changelogfile) && downOnly == false)
+      key[found] = '-';
+      key[found + 1] = ::toupper(key[found + 1]);
+   }
+   return key;
+}
+static bool DoFiles(CommandLine &CmdL)
+{
+   pkgCacheFile CacheFile;
+   pkgSourceList *SrcList = CacheFile.GetSourceList();
+
+   if (SrcList == NULL)
+      return false;
+
+   std::string const Format = _config->Find("APT::Get::Files::Format");
+   bool const ReleaseInfo = _config->FindB("APT::Get::Files::ReleaseInfo", true);
+   bool Filtered = CmdL.FileSize() > 1;
+   for (pkgSourceList::const_iterator S = SrcList->begin(); S != SrcList->end(); ++S)
+   {
+      std::vector<IndexTarget> const targets = (*S)->GetIndexTargets();
+      std::map<std::string, string> AddOptions;
+      if (ReleaseInfo)
+      {
+        AddOptions.insert(std::make_pair("TRUSTED", ((*S)->IsTrusted() ? "yes" : "no")));
+        pkgCache &Cache = *CacheFile.GetPkgCache();
+        pkgCache::RlsFileIterator const RlsFile = (*S)->FindInCache(Cache, false);
+        if (RlsFile.end())
+           continue;
+#define APT_RELEASE(X,Y) if (RlsFile.Y() != NULL) AddOptions.insert(std::make_pair(X, RlsFile.Y()))
+        APT_RELEASE("CODENAME", Codename);
+        APT_RELEASE("SUITE", Archive);
+        APT_RELEASE("VERSION", Version);
+        APT_RELEASE("ORIGIN", Origin);
+        APT_RELEASE("LABEL", Label);
+#undef APT_RELEASE
+      }
+
+      for (std::vector<IndexTarget>::const_iterator T = targets.begin(); T != targets.end(); ++T)
       {
-         DisplayFileInPager(changelogfile);
-         // cleanup temp file
-        unlink(changelogfile.c_str());
+        std::string filename = T->Option(ReleaseInfo ? IndexTarget::EXISTING_FILENAME : IndexTarget::FILENAME);
+        if (filename.empty())
+           continue;
+
+        std::ostringstream stanza;
+        if (Filtered || Format.empty())
+        {
+           stanza << "MetaKey: " << T->MetaKey << "\n"
+              << "ShortDesc: " << T->ShortDesc << "\n"
+              << "Description: " << T->Description << "\n"
+              << "URI: " << T->URI << "\n"
+              << "Filename: " << filename << "\n"
+              << "Optional: " << (T->IsOptional ? "yes" : "no") << "\n";
+           for (std::map<std::string,std::string>::const_iterator O = AddOptions.begin(); O != AddOptions.end(); ++O)
+              stanza << format_key(O->first) << ": " << O->second << "\n";
+           for (std::map<std::string,std::string>::const_iterator O = T->Options.begin(); O != T->Options.end(); ++O)
+              stanza << format_key(O->first) << ": " << O->second << "\n";
+           stanza << "\n";
+
+           if (Filtered)
+           {
+              // that is a bit crude, but good enough for now
+              bool found = true;
+              std::string haystack = std::string("\n") + stanza.str() + "\n";
+              std::transform(haystack.begin(), haystack.end(), haystack.begin(), ::tolower);
+              size_t const filesize = CmdL.FileSize() - 1;
+              for (size_t i = 0; i != filesize; ++i)
+              {
+                 std::string needle = std::string("\n") + CmdL.FileList[i + 1] + "\n";
+                 std::transform(needle.begin(), needle.end(), needle.begin(), ::tolower);
+                 if (haystack.find(needle) != std::string::npos)
+                    continue;
+                 found = false;
+                 break;
+              }
+              if (found == false)
+                 continue;
+           }
+        }
+
+        if (Format.empty())
+           cout << stanza.str();
+        else
+        {
+           std::string out = SubstVar(Format, "$(FILENAME)", filename);
+           out = T->Format(out);
+           for (std::map<std::string,std::string>::const_iterator O = AddOptions.begin(); O != AddOptions.end(); ++O)
+              out = SubstVar(out, std::string("$(") + O->first + ")", O->second);
+           cout << out << std::endl;
+        }
       }
    }
-   // clenaup tmp dir
-   if (tmpdir != NULL)
-      rmdir(tmpdir);
+
    return true;
 }
                                                                        /*}}}*/
@@ -1716,6 +1696,7 @@ int main(int argc,const char *argv[])                                     /*{{{*/
                                   {"source",&DoSource},
                                    {"download",&DoDownload},
                                    {"changelog",&DoChangelog},
+                                  {"files",&DoFiles},
                                   {"moo",&DoMoo},
                                   {"help",&ShowHelp},
                                    {0,0}};