deal with --version more centrally

[apt.git] / cmdline / apt-extracttemplates.cc

diff --git a/cmdline/apt-extracttemplates.cc b/cmdline/apt-extracttemplates.cc
index ecba44adeee4efe6392198e34c49e31da244aee8..b63f2ff1610f092c2dc2ab39a782c4e044a4e49b 100644 (file)
--- a/cmdline/apt-extracttemplates.cc
+++ b/cmdline/apt-extracttemplates.cc
@@ -1,6 +1,6 @@
 // -*- mode: cpp; mode: fold -*-
 // Description                                                         /*{{{*/
 // -*- mode: cpp; mode: fold -*-
 // Description                                                         /*{{{*/

-// $Id: apt-extracttemplates.cc,v 1.2 2001/02/25 04:53:59 tausq Exp $
+// $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
 /* ######################################################################
    
    APT Extract Templates - Program to extract debconf config and template


@@ -13,38 +13,41 @@
    ##################################################################### */
                                                                        /*}}}*/
 // Include Files                                                       /*{{{*/
    ##################################################################### */
                                                                        /*}}}*/
 // Include Files                                                       /*{{{*/

+#include<config.h>
+

 #include <apt-pkg/init.h>
 #include <apt-pkg/init.h>

-#if APT_PKG_MAJOR >= 3
-#define APT_COMPATIBILITY 986
-#include <apt-pkg/debversion.h>
-#endif
+#include <apt-pkg/cmndline.h>

 #include <apt-pkg/pkgcache.h>
 #include <apt-pkg/pkgcache.h>

+#include <apt-pkg/cacheiterators.h>

 #include <apt-pkg/configuration.h>
 #include <apt-pkg/configuration.h>

-#include <apt-pkg/progress.h>

 #include <apt-pkg/sourcelist.h>
 #include <apt-pkg/pkgcachegen.h>
 #include <apt-pkg/version.h>
 #include <apt-pkg/tagfile.h>
 #include <apt-pkg/sourcelist.h>
 #include <apt-pkg/pkgcachegen.h>
 #include <apt-pkg/version.h>
 #include <apt-pkg/tagfile.h>

-#include <apt-pkg/extracttar.h>
-#include <apt-pkg/arfile.h>
+#include <apt-pkg/debfile.h>

 #include <apt-pkg/deblistparser.h>
 #include <apt-pkg/error.h>
 #include <apt-pkg/strutl.h>
 #include <apt-pkg/deblistparser.h>
 #include <apt-pkg/error.h>
 #include <apt-pkg/strutl.h>

-       
+#include <apt-pkg/fileutl.h>
+#include <apt-pkg/pkgsystem.h>
+#include <apt-pkg/dirstream.h>
+#include <apt-pkg/mmap.h>
+
+#include <apt-private/private-cmndline.h>
+#include <apt-private/private-main.h>
+
+#include <iostream>

 #include <stdio.h>
 #include <string.h>
 #include <stdio.h>
 #include <string.h>

-#include <stdlib.h>

 #include <unistd.h>
 #include <unistd.h>

-#define _GNU_SOURCE
-#include <getopt.h>
-#include <wait.h>
-#include <fstream.h>
+#include <stdlib.h>

 
 

-#include <config.h>
-#include <apti18n.h>

 #include "apt-extracttemplates.h"
 
 #include "apt-extracttemplates.h"
 

-#define TMPDIR         "/var/lib/debconf/"
+#include <apti18n.h>
+                                                                       /*}}}*/
+
+using namespace std;

 
 pkgCache *DebFile::Cache = 0;
 
 
 pkgCache *DebFile::Cache = 0;
 


@@ -52,8 +55,8 @@ pkgCache *DebFile::Cache = 0;
 // ---------------------------------------------------------------------
 /* */
 DebFile::DebFile(const char *debfile)
 // ---------------------------------------------------------------------
 /* */
 DebFile::DebFile(const char *debfile)

-       : File(debfile, FileFd::ReadOnly), Control(0), DepOp(0), PreDepOp(0), 
-         Config(0), Template(0), Which(None)
+       : File(debfile, FileFd::ReadOnly), Control(NULL), ControlLen(0),
+         DepOp(0), PreDepOp(0), Config(0), Template(0), Which(None)

 {
 }
                                                                        /*}}}*/
 {
 }
                                                                        /*}}}*/


@@ -70,21 +73,19 @@ DebFile::~DebFile()
 // DebFile::GetInstalledVer - Find out the installed version of a pkg  /*{{{*/
 // ---------------------------------------------------------------------
 /* */
 // DebFile::GetInstalledVer - Find out the installed version of a pkg  /*{{{*/
 // ---------------------------------------------------------------------
 /* */

-char *DebFile::GetInstalledVer(const string &package)
+string DebFile::GetInstalledVer(const string &package)

 {
 {

-       char *ver = 0;
-

        pkgCache::PkgIterator Pkg = Cache->FindPkg(package);
        if (Pkg.end() == false) 
        {
                pkgCache::VerIterator V = Pkg.CurrentVer();
        pkgCache::PkgIterator Pkg = Cache->FindPkg(package);
        if (Pkg.end() == false) 
        {
                pkgCache::VerIterator V = Pkg.CurrentVer();

-               if (V.end() == false) 
+               if (V.end() == false)

                {
                {

-                       ver = strdup(V.VerStr());
+                       return V.VerStr();

                }
        }
 
                }
        }
 

-       return ver;
+       return string();

 }
                                                                        /*}}}*/
 // DebFile::Go - Start extracting a debian package                     /*{{{*/
 }
                                                                        /*}}}*/
 // DebFile::Go - Start extracting a debian package                     /*{{{*/


@@ -92,21 +93,9 @@ char *DebFile::GetInstalledVer(const string &package)
 /* */
 bool DebFile::Go()
 {
 /* */
 bool DebFile::Go()
 {

-       ARArchive AR(File);
-       const ARArchive::Member *Member = AR.FindMember("control.tar.gz");
-       if (Member == 0)
-       {
-               fprintf(stderr, _("This is not a valid DEB package.\n"));
-               return false;
-       }
-       
-       if (File.Seek(Member->Start) == false)
-       {
-               return false;
-       }
+       debDebFile Deb(File);

 
 

-       ExtractTar Tar(File, Member->Size);
-       return Tar.Go(*this);
+       return Deb.ExtractTarMember(*this, "control.tar");

 }
                                                                        /*}}}*/
 // DebFile::DoItem examine element in package and mark                 /*{{{*/
 }
                                                                        /*}}}*/
 // DebFile::DoItem examine element in package and mark                 /*{{{*/


@@ -117,10 +106,12 @@ bool DebFile::DoItem(Item &I, int &Fd)
        if (strcmp(I.Name, "control") == 0)
        {
                delete [] Control;
        if (strcmp(I.Name, "control") == 0)
        {
                delete [] Control;

-               Control = new char[I.Size+1];
-               Control[I.Size] = 0;
+               Control = new char[I.Size+3];
+               Control[I.Size] = '\n';
+               Control[I.Size + 1] = '\n';
+               Control[I.Size + 2] = '\0';

                Which = IsControl;
                Which = IsControl;

-               ControlLen = I.Size;
+               ControlLen = I.Size + 3;

                // make it call the Process method below. this is so evil
                Fd = -2;
        }
                // make it call the Process method below. this is so evil
                Fd = -2;
        }


@@ -142,6 +133,7 @@ bool DebFile::DoItem(Item &I, int &Fd)
        } 
        else 
        {
        } 
        else 
        {

+               // Ignore it

                Fd = -1;
        }
        return true;
                Fd = -1;
        }
        return true;


@@ -150,8 +142,8 @@ bool DebFile::DoItem(Item &I, int &Fd)
 // DebFile::Process examine element in package and copy                        /*{{{*/
 // ---------------------------------------------------------------------
 /* */
 // DebFile::Process examine element in package and copy                        /*{{{*/
 // ---------------------------------------------------------------------
 /* */

-bool DebFile::Process(Item &I, const unsigned char *data, 
-               unsigned long size, unsigned long pos)
+bool DebFile::Process(Item &/*I*/, const unsigned char *data,
+               unsigned long long size, unsigned long long pos)

 {
        switch (Which)
        {
 {
        switch (Which)
        {


@@ -175,8 +167,10 @@ bool DebFile::Process(Item &I, const unsigned char *data,
 bool DebFile::ParseInfo()
 {
        if (Control == NULL) return false;
 bool DebFile::ParseInfo()
 {
        if (Control == NULL) return false;

+

        pkgTagSection Section;
        pkgTagSection Section;

-       Section.Scan(Control, ControlLen);
+       if (Section.Scan(Control, ControlLen) == false)
+               return false;

 
        Package = Section.FindS("Package");
        Version = GetInstalledVer(Package);
 
        Package = Section.FindS("Package");
        Version = GetInstalledVer(Package);


@@ -221,127 +215,113 @@ bool DebFile::ParseInfo()
        return true;
 }
                                                                        /*}}}*/
        return true;
 }
                                                                        /*}}}*/

-// ShowHelp - show a short help text                                   /*{{{*/
-// ---------------------------------------------------------------------
-/* */
-void ShowHelp(void)
+bool ShowHelp(CommandLine &, aptDispatchWithHelp const *)              /*{{{*/

 {
 {

-       ioprintf(cout,_("%s %s for %s %s compiled on %s %s\n"),PACKAGE,VERSION,
-           COMMON_OS,COMMON_CPU,__DATE__,__TIME__);
-
-       fprintf(stderr, 
+       cout <<

                _("Usage: apt-extracttemplates file1 [file2 ...]\n"
                "\n"
                "apt-extracttemplates is a tool to extract config and template info\n"
                _("Usage: apt-extracttemplates file1 [file2 ...]\n"
                "\n"
                "apt-extracttemplates is a tool to extract config and template info\n"

-               "from debian packages\n"));
-       exit(0);
+               "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 true;

 }
                                                                        /*}}}*/
 // WriteFile - write the contents of the passed string to a file       /*{{{*/
 // ---------------------------------------------------------------------
 /* */
 }
                                                                        /*}}}*/
 // WriteFile - write the contents of the passed string to a file       /*{{{*/
 // ---------------------------------------------------------------------
 /* */

-char *WriteFile(const char *prefix, const char *data)
+static string WriteFile(const char *package, const char *prefix, const char *data)

 {
        char fn[512];
 {
        char fn[512];

-       static int i;
-       snprintf(fn, sizeof(fn), "%s%s.%u%d", TMPDIR, prefix, getpid(), i++);

 
 

-       ofstream ofs(fn);
-       if (!ofs) return NULL;
-       ofs << (data ? data : "");
-       ofs.close();
-       return strdup(fn);
+        std::string tempdir = GetTempDir();
+       snprintf(fn, sizeof(fn), "%s/%s.%s.XXXXXX",
+                 _config->Find("APT::ExtractTemplates::TempDir", 
+                               tempdir.c_str()).c_str(),
+                 package, prefix);
+       FileFd f;
+       if (data == NULL)
+               data = "";
+        int fd = mkstemp(fn);
+        if (fd < 0) {
+               _error->Errno("ofstream::ofstream",_("Unable to mkstemp %s"),fn);
+                return string();
+        }
+       if (!f.OpenDescriptor(fd, FileFd::WriteOnly, FileFd::None, true))
+       {
+               _error->Errno("ofstream::ofstream",_("Unable to write to %s"),fn);
+               return string();
+       }
+       f.Write(data, strlen(data));
+       f.Close();
+       return fn;

 }
                                                                        /*}}}*/
 // WriteConfig - write out the config data from a debian package file  /*{{{*/
 // ---------------------------------------------------------------------
 /* */
 }
                                                                        /*}}}*/
 // WriteConfig - write out the config data from a debian package file  /*{{{*/
 // ---------------------------------------------------------------------
 /* */

-void WriteConfig(const DebFile &file)
+static void WriteConfig(const DebFile &file)

 {
 {

-       char *templatefile = WriteFile("template", file.Template);
-       char *configscript = WriteFile("config", file.Config);
+       string templatefile = WriteFile(file.Package.c_str(), "template", file.Template);
+       string configscript = WriteFile(file.Package.c_str(), "config", file.Config);

 
 

-       if (templatefile == 0 || configscript == 0)
-       {
-               fprintf(stderr, _("Cannot write config script or templates\n"));
+       if (templatefile.empty() == true || configscript.empty() == true)

                return;
                return;

-       }

        cout << file.Package << " " << file.Version << " " 
             << templatefile << " " << configscript << endl;
        cout << file.Package << " " << file.Version << " " 
             << templatefile << " " << configscript << endl;

-
-       free(templatefile);
-       free(configscript);

 }
                                                                        /*}}}*/
 // InitCache - initialize the package cache                            /*{{{*/
 // ---------------------------------------------------------------------
 /* */
 }
                                                                        /*}}}*/
 // InitCache - initialize the package cache                            /*{{{*/
 // ---------------------------------------------------------------------
 /* */

-int InitCache(MMap *&Map, pkgCache *&Cache)
-{
+static bool Go(CommandLine &CmdL)
+{      

        // Initialize the apt cache
        // Initialize the apt cache

-       if (pkgInitConfig(*_config) == false || pkgInitSystem(*_config, _system) == false)
-       {
-               _error->DumpErrors();
-               return -1;
-       }
+       MMap *Map = 0;

        pkgSourceList List;
        List.ReadMainList();
        pkgSourceList List;
        List.ReadMainList();

-       OpProgress Prog;
-       pkgMakeStatusCache(List,Prog,&Map,true);
-       Cache = new pkgCache(Map);
-       return 0;
-}
-                                                                       /*}}}*/
-
-int main(int argc, char **argv, char **env)
-{
-       int idx = 0;
-       char **debs = 0;
-       int numdebs = 0;
-       MMap *Map = 0;
-       const char *debconfver = NULL;
-
-       // Initialize the package cache
-       if (InitCache(Map, DebFile::Cache) < 0 || Map == 0 || DebFile::Cache == 0)
-       {
-               fprintf(stderr, _("Cannot initialize APT cache\n"));
-               return 100;
-       }
+       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
 
        // Find out what version of debconf is currently installed

-       if ((debconfver = DebFile::GetInstalledVer("debconf")) == NULL)
-       {
-               fprintf(stderr, _("Cannot get debconf version. Is debconf installed?\n"));
-               return 1;
-       }
+       string debconfver = DebFile::GetInstalledVer("debconf");
+       if (debconfver.empty() == true)
+               return _error->Error( _("Cannot get debconf version. Is debconf installed?"));

 
        // Process each package passsed in
 
        // Process each package passsed in

-       numdebs = argc - 1;
-       debs = new char *[numdebs];
-       memcpy(debs, &argv[1], sizeof(char *) * numdebs);
-
-       if (numdebs < 1) ShowHelp();
-
-       for (idx = 0; idx < numdebs; idx++)
+       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;
                }
                        continue;
                }

+

                // Does the package have templates?
                if (file.Template != 0 && file.ParseInfo() == true)
                {
                        // Check to make sure debconf dependencies are
                        // satisfied
                // Does the package have templates?
                if (file.Template != 0 && file.ParseInfo() == true)
                {
                        // Check to make sure debconf dependencies are
                        // satisfied

+                       // cout << "Check " << file.DepVer << ',' << debconfver << endl;

                        if (file.DepVer != "" &&
                        if (file.DepVer != "" &&

-                           pkgCheckDep(file.DepVer.c_str(), 
-                                       debconfver, file.DepOp) == false) 
+                           DebFile::Cache->VS->CheckDep(debconfver.c_str(),
+                                       file.DepOp,file.DepVer.c_str()
+                                                        ) == false)

                                continue;
                        if (file.PreDepVer != "" &&
                                continue;
                        if (file.PreDepVer != "" &&

-                           pkgCheckDep(file.PreDepVer.c_str(), 
-                                       debconfver, file.PreDepOp) == false) 
+                           DebFile::Cache->VS->CheckDep(debconfver.c_str(),
+                                       file.PreDepOp,file.PreDepVer.c_str()
+                                                        ) == false) 

                                continue;
 
                        WriteConfig(file);
                                continue;
 
                        WriteConfig(file);


@@ -351,6 +331,26 @@ int main(int argc, char **argv, char **env)
 
        delete Map;
        delete DebFile::Cache;
 
        delete Map;
        delete DebFile::Cache;

+       
+       return !_error->PendingError();
+}
+                                                                       /*}}}*/
+std::vector<aptDispatchWithHelp> GetCommands()                         /*{{{*/
+{
+   return {
+       {nullptr, nullptr, nullptr}
+   };
+}
+                                                                       /*}}}*/
+int main(int argc, const char **argv)                                  /*{{{*/
+{
+       InitLocale();

 
 

-       return 0;
+       CommandLine CmdL;
+       auto const Cmds = ParseCommandLine(CmdL, APT_CMD::APT_EXTRACTTEMPLATES, &_config, &_system, argc, argv);
+
+       Go(CmdL);
+
+       return DispatchCommandLine(CmdL, {});

 }
 }

+                                                                       /*}}}*/