X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/3fc8f6852335ef8d50f40882769d9df6728dd73d..af7a92c35accda98b667ff41f62ea500fca95a7c:/cmdline/apt-extracttemplates.cc diff --git a/cmdline/apt-extracttemplates.cc b/cmdline/apt-extracttemplates.cc index b7af03005..07bc0c25d 100644 --- a/cmdline/apt-extracttemplates.cc +++ b/cmdline/apt-extracttemplates.cc @@ -1,142 +1,392 @@ -#include -#include -#include -#include -#define _GNU_SOURCE -#include -#include -#include +// -*- mode: cpp; mode: fold -*- +// Description /*{{{*/ +// $Id: apt-extracttemplates.cc,v 1.15 2003/07/26 00:00:11 mdz Exp $ +/* ###################################################################### + + APT Extract Templates - Program to extract debconf config and template + files + This is a simple program to extract config and template information + from Debian packages. It can be used to speed up the preconfiguration + process for debconf-enabled packages + + ##################################################################### */ + /*}}}*/ +// Include Files /*{{{*/ #include -#if APT_PKG_MAJOR >= 3 -#define APT_COMPATIBILITY 986 -#include -#endif +#include #include #include #include #include #include #include -#include "debfile.h" +#include +#include +#include +#include +#include +#include +#include -#define TMPDIR "/var/lib/debconf/" -#define STR(x) (x ? x : "") -//#define TMPDIR "tmp/" +#include +#include +#include +#include +#include -void help(void) -{ - fprintf(stderr, "apt-extracttemplates deb [deb]\n"); - exit(0); -} +#include +#include +#include +#include "apt-extracttemplates.h" + /*}}}*/ -char *writefile(const char *prefix, const char *data) -{ - char fn[512]; - static int i; - snprintf(fn, sizeof(fn), "%s%s.%u%d", TMPDIR, prefix, getpid(), i++); +using namespace std; - if (data == NULL) data = ""; +#define TMPDIR "/tmp" - ofstream ofs(fn); - if (!ofs) return NULL; - ofs << data; - ofs.close(); - return strdup(fn); -} +pkgCache *DebFile::Cache = 0; -void writeconfig(const DebFile &file) +// DebFile::DebFile - Construct the DebFile object /*{{{*/ +// --------------------------------------------------------------------- +/* */ +DebFile::DebFile(const char *debfile) + : File(debfile, FileFd::ReadOnly), Control(0), DepOp(0), + PreDepOp(0), Config(0), Template(0), Which(None) +{ +} + /*}}}*/ +// DebFile::~DebFile - Destruct the DebFile object /*{{{*/ +// --------------------------------------------------------------------- +/* */ +DebFile::~DebFile() { - char *templatefile = writefile("template", file.Template); - char *configscript = writefile("config", file.Config); + delete [] Control; + delete [] Config; + delete [] Template; +} + /*}}}*/ +// DebFile::GetInstalledVer - Find out the installed version of a pkg /*{{{*/ +// --------------------------------------------------------------------- +/* */ +string DebFile::GetInstalledVer(const string &package) +{ + pkgCache::PkgIterator Pkg = Cache->FindPkg(package); + if (Pkg.end() == false) + { + pkgCache::VerIterator V = Pkg.CurrentVer(); + if (V.end() == false) + { + return V.VerStr(); + } + } - if (templatefile == 0 || configscript == 0) + return string(); +} + /*}}}*/ +// DebFile::Go - Start extracting a debian package /*{{{*/ +// --------------------------------------------------------------------- +/* */ +bool DebFile::Go() +{ + ARArchive AR(File); + if (_error->PendingError() == true) + return false; + + const ARArchive::Member *Member = AR.FindMember("control.tar.gz"); + if (Member == 0) + return _error->Error(_("%s not a valid DEB package."),File.Name().c_str()); + + if (File.Seek(Member->Start) == false) + return false; + ExtractTar Tar(File, Member->Size,"gzip"); + return Tar.Go(*this); +} + /*}}}*/ +// DebFile::DoItem examine element in package and mark /*{{{*/ +// --------------------------------------------------------------------- +/* */ +bool DebFile::DoItem(Item &I, int &Fd) +{ + if (strcmp(I.Name, "control") == 0) { - fprintf(stderr, "Cannot write config script or templates\n"); - return; + delete [] Control; + Control = new char[I.Size+1]; + Control[I.Size] = 0; + Which = IsControl; + ControlLen = I.Size; + // make it call the Process method below. this is so evil + Fd = -2; + } + else if (strcmp(I.Name, "config") == 0) + { + delete [] Config; + Config = new char[I.Size+1]; + Config[I.Size] = 0; + Which = IsConfig; + Fd = -2; + } + else if (strcmp(I.Name, "templates") == 0) + { + delete [] Template; + Template = new char[I.Size+1]; + Template[I.Size] = 0; + Which = IsTemplate; + Fd = -2; + } + else + { + // Ignore it + Fd = -1; } - printf("%s %s %s %s\n", - STR(file.Package), // Package - STR(file.Version), // Version - templatefile, // Template - configscript // Config - ); + return true; } - -void init(MMap *&Map, pkgCache *&Cache) + /*}}}*/ +// DebFile::Process examine element in package and copy /*{{{*/ +// --------------------------------------------------------------------- +/* */ +bool DebFile::Process(Item &I, const unsigned char *data, + unsigned long size, unsigned long pos) { - // Initialize the apt cache - if (pkgInitConfig(*_config) == false || pkgInitSystem(*_config, _system) == false) + switch (Which) { - fprintf(stderr, "Cannot initialize apt cache\n"); - return; + case IsControl: + memcpy(Control + pos, data, size); + break; + case IsConfig: + memcpy(Config + pos, data, size); + break; + case IsTemplate: + memcpy(Template + pos, data, size); + break; + default: /* throw it away */ ; } - pkgSourceList List; - List.ReadMainList(); - OpProgress Prog; - pkgMakeStatusCache(List,Prog,&Map,true); - Cache = new pkgCache(Map); + return true; } - -int main(int argc, char **argv, char **env) + /*}}}*/ +// DebFile::ParseInfo - Parse control file for dependency info /*{{{*/ +// --------------------------------------------------------------------- +/* */ +bool DebFile::ParseInfo() { - int idx = 0; - char **debs = 0; - int numdebs = 0; - MMap *Map = 0; - const char *debconfver = NULL; + if (Control == NULL) return false; + + pkgTagSection Section; + Section.Scan(Control, ControlLen); - init(Map, DebFile::Cache); - if (Map == 0 || DebFile::Cache == 0) + Package = Section.FindS("Package"); + Version = GetInstalledVer(Package); + + const char *Start, *Stop; + if (Section.Find("Depends", Start, Stop) == true) { - fprintf(stderr, "Cannot initialize APT cache\n"); - return 1; + while (1) + { + string P, V; + unsigned int Op; + Start = debListParser::ParseDepends(Start, Stop, P, V, Op); + if (Start == 0) return false; + if (P == "debconf") + { + DepVer = V; + DepOp = Op; + break; + } + if (Start == Stop) break; + } } - - debconfver = DebFile::GetInstalledVer("debconf"); - if (debconfver == NULL) + if (Section.Find("Pre-Depends", Start, Stop) == true) { - fprintf(stderr, "Cannot get debconf version. Is debconf installed?\n"); - return 1; + while (1) + { + string P, V; + unsigned int Op; + Start = debListParser::ParseDepends(Start, Stop, P, V, Op); + if (Start == 0) return false; + if (P == "debconf") + { + PreDepVer = V; + PreDepOp = Op; + break; + } + if (Start == Stop) break; + } } + + return true; +} + /*}}}*/ +// ShowHelp - show a short help text /*{{{*/ +// --------------------------------------------------------------------- +/* */ +int ShowHelp(void) +{ + ioprintf(cout,_("%s %s for %s compiled on %s %s\n"),PACKAGE,VERSION, + COMMON_ARCH,__DATE__,__TIME__); - numdebs = argc - 1; - debs = new char *[numdebs]; - memcpy(debs, &argv[1], sizeof(char *) * numdebs); + if (_config->FindB("version") == true) + return 0; - if (numdebs < 1) + cout << + _("Usage: apt-extracttemplates file1 [file2 ...]\n" + "\n" + "apt-extracttemplates is a tool to extract config and template info\n" + "from debian packages\n" + "\n" + "Options:\n" + " -h This help text\n" + " -t Set the temp dir\n" + " -c=? Read this configuration file\n" + " -o=? Set an arbitrary configuration option, eg -o dir::cache=/tmp\n"); + return 0; +} + /*}}}*/ +// WriteFile - write the contents of the passed string to a file /*{{{*/ +// --------------------------------------------------------------------- +/* */ +string WriteFile(const char *package, const char *prefix, const char *data) +{ + char fn[512]; + static int i; + const char *tempdir = NULL; + + tempdir = getenv("TMPDIR"); + if (tempdir == NULL) + tempdir = TMPDIR; + + snprintf(fn, sizeof(fn), "%s/%s.%s.%u%d", + _config->Find("APT::ExtractTemplates::TempDir", tempdir).c_str(), + package, prefix, getpid(), i++); + FileFd f; + if (data == NULL) + data = ""; + + if (!f.Open(fn, FileFd::WriteTemp, 0600)) { - fprintf(stderr, "apt-extracttemplates foo.deb [...]\n"); - return 0; + _error->Errno("ofstream::ofstream",_("Unable to write to %s"),fn); + return string(); } - for (idx = 0; idx < numdebs; idx++) + f.Write(data, strlen(data)); + f.Close(); + return fn; +} + /*}}}*/ +// WriteConfig - write out the config data from a debian package file /*{{{*/ +// --------------------------------------------------------------------- +/* */ +void WriteConfig(const DebFile &file) +{ + string templatefile = WriteFile(file.Package.c_str(), "template", file.Template); + string configscript = WriteFile(file.Package.c_str(), "config", file.Config); + + if (templatefile.empty() == true || configscript.empty() == true) + return; + cout << file.Package << " " << file.Version << " " + << templatefile << " " << configscript << endl; +} + /*}}}*/ +// InitCache - initialize the package cache /*{{{*/ +// --------------------------------------------------------------------- +/* */ +bool Go(CommandLine &CmdL) +{ + // Initialize the apt cache + MMap *Map = 0; + pkgSourceList List; + List.ReadMainList(); + pkgCacheGenerator::MakeStatusCache(List,NULL,&Map,true); + if (Map == 0) + return false; + DebFile::Cache = new pkgCache(Map); + if (_error->PendingError() == true) + return false; + + // Find out what version of debconf is currently installed + string debconfver = DebFile::GetInstalledVer("debconf"); + if (debconfver.empty() == true) + return _error->Error( _("Cannot get debconf version. Is debconf installed?")); + + // Process each package passsed in + for (unsigned int I = 0; I != CmdL.FileSize(); I++) { - DebFile file(debs[idx]); - if (file.Go() == false) + // Will pick up the errors later.. + DebFile file(CmdL.FileList[I]); + if (file.Go() == false) { - fprintf(stderr, "Cannot read %s\n", debs[idx]); + _error->Error("Prior errors apply to %s",CmdL.FileList[I]); continue; } + + // Does the package have templates? if (file.Template != 0 && file.ParseInfo() == true) { - if (file.DepVer != 0 && *file.DepVer != 0 && - pkgCheckDep(file.DepVer, - debconfver, file.DepOp) == false) + // Check to make sure debconf dependencies are + // satisfied + // cout << "Check " << file.DepVer << ',' << debconfver << endl; + if (file.DepVer != "" && + DebFile::Cache->VS->CheckDep(debconfver.c_str(), + file.DepOp,file.DepVer.c_str() + ) == false) continue; - if (file.PreDepVer != 0 && *file.PreDepVer != 0 && - pkgCheckDep(file.PreDepVer, - debconfver, file.PreDepOp) == false) + if (file.PreDepVer != "" && + DebFile::Cache->VS->CheckDep(debconfver.c_str(), + file.PreDepOp,file.PreDepVer.c_str() + ) == false) continue; - writeconfig(file); + WriteConfig(file); } } delete Map; delete DebFile::Cache; + + return !_error->PendingError(); +} + /*}}}*/ +int main(int argc, const char **argv) /*{{{*/ +{ + CommandLine::Args Args[] = { + {'h',"help","help",0}, + {'v',"version","version",0}, + {'t',"tempdir","APT::ExtractTemplates::TempDir",CommandLine::HasArg}, + {'c',"config-file",0,CommandLine::ConfigFile}, + {'o',"option",0,CommandLine::ArbItem}, + {0,0,0,0}}; + + // Set up gettext support + setlocale(LC_ALL,""); + textdomain(PACKAGE); + + // Parse the command line and initialize the package library + CommandLine CmdL(Args,_config); + if (pkgInitConfig(*_config) == false || + CmdL.Parse(argc,argv) == false || + pkgInitSystem(*_config,_system) == false) + { + _error->DumpErrors(); + return 100; + } + + // See if the help should be shown + if (_config->FindB("help") == true || + CmdL.FileSize() == 0) + return ShowHelp(); + + Go(CmdL); + // Print any errors or warnings found during operation + if (_error->empty() == false) + { + // This goes to stderr.. + bool Errors = _error->PendingError(); + _error->DumpErrors(); + return Errors == true?100:0; + } + return 0; } + /*}}}*/