try to detect sudo spawned root-shell in prefixing

[apt.git] / apt-private / private-cmndline.cc

diff --git a/apt-private/private-cmndline.cc b/apt-private/private-cmndline.cc
index 4e80314f1143bb74ebafd72ba3ad4aeafababb88..7e50b140156ce7b4e560278b3488a570ba89b793 100644 (file)
--- a/apt-private/private-cmndline.cc
+++ b/apt-private/private-cmndline.cc
@@ -7,14 +7,18 @@
 #include <apt-pkg/pkgsystem.h>
 #include <apt-pkg/init.h>
 #include <apt-pkg/error.h>
+#include <apt-pkg/strutl.h>
 
 #include <apt-private/private-cmndline.h>
+#include <apt-private/private-main.h>
 
-#include <vector>
 #include <stdarg.h>
 #include <string.h>
 #include <stdlib.h>
 
+#include <vector>
+#include <iomanip>
+
 #include <apti18n.h>
                                                                        /*}}}*/
 
@@ -153,8 +157,12 @@ static bool addArgumentsAPTInternalSolver(std::vector<CommandLine::Args> &, char
    return true;
 }
                                                                        /*}}}*/
-static bool addArgumentsAPTHelper(std::vector<CommandLine::Args> &, char const * const)/*{{{*/
+static bool addArgumentsAPTHelper(std::vector<CommandLine::Args> &Args, char const * const Cmd)/*{{{*/
 {
+   if (CmdMatches("cat-file"))
+   {
+      addArg('C', "compress", "Apt-Helper::Cat-File::Compress",CommandLine::HasArg);
+   }
    return true;
 }
                                                                        /*}}}*/
@@ -362,23 +370,58 @@ std::vector<CommandLine::Args> getCommandArgs(APT_CMD const Program, char const
                                                                        /*}}}*/
 #undef CmdMatches
 #undef addArg
-static bool ShowCommonHelp(APT_CMD const Binary, CommandLine &CmdL, aptDispatchWithHelp const * Cmds)/*{{{*/
+static void ShowHelpListCommands(std::vector<aptDispatchWithHelp> const &Cmds)/*{{{*/
 {
-   std::cout << PACKAGE << " " << PACKAGE_VERSION << " (" << COMMON_ARCH << ")" << std::endl;
-   if (_config->FindB("version") == true && Binary != APT_CMD::APT_GET)
-      return true;
-   return ShowHelp(CmdL, Cmds);
+   if (Cmds.empty() || Cmds[0].Match == nullptr)
+      return;
+   std::cout << std::endl << _("Most used commands:") << std::endl;
+   for (auto const &c: Cmds)
+   {
+      if (c.Help == nullptr)
+        continue;
+      std::cout << "  " << c.Match << " - " << c.Help << std::endl;
+   }
 }
                                                                        /*}}}*/
-void ShowHelpListCommands(aptDispatchWithHelp const * Cmds)            /*{{{*/
+static bool ShowCommonHelp(APT_CMD const Binary, CommandLine &CmdL, std::vector<aptDispatchWithHelp> const &Cmds,/*{{{*/
+      bool (*ShowHelp)(CommandLine &))
 {
-   std::cout << _("Commands:") << std::endl;
-   for (; Cmds->Handler != nullptr; ++Cmds)
+   std::cout << PACKAGE << " " << PACKAGE_VERSION << " (" << COMMON_ARCH << ")" << std::endl;
+   if (_config->FindB("version") == true && Binary != APT_CMD::APT_GET)
+      return true;
+   if (ShowHelp(CmdL) == false)
+      return false;
+   if (_config->FindB("version") == true || Binary == APT_CMD::APT_FTPARCHIVE)
+      return true;
+   ShowHelpListCommands(Cmds);
+   std::cout << std::endl;
+   char const * cmd = nullptr;
+   switch (Binary)
    {
-      if (Cmds->Help == nullptr)
-        continue;
-      std::cout << "  " << Cmds->Match << " - " << Cmds->Help << std::endl;
+      case APT_CMD::APT: cmd = "apt(8)"; break;
+      case APT_CMD::APT_CACHE: cmd = "apt-cache(8)"; break;
+      case APT_CMD::APT_CDROM: cmd = "apt-cdrom(8)"; break;
+      case APT_CMD::APT_CONFIG: cmd = "apt-config(8)"; break;
+      case APT_CMD::APT_EXTRACTTEMPLATES: cmd = "apt-extracttemplates(1)"; break;
+      case APT_CMD::APT_FTPARCHIVE: cmd = "apt-ftparchive(1)"; break;
+      case APT_CMD::APT_GET: cmd = "apt-get(8)"; break;
+      case APT_CMD::APT_HELPER: cmd = nullptr; break;
+      case APT_CMD::APT_INTERNAL_SOLVER: cmd = nullptr; break;
+      case APT_CMD::APT_MARK: cmd = "apt-mark(8)"; break;
+      case APT_CMD::APT_SORTPKG: cmd = "apt-sortpkgs(1)"; break;
    }
+   if (cmd != nullptr)
+      ioprintf(std::cout, _("See %s for more information about the available commands."), cmd);
+   std::cout << std::endl <<
+      _("Configuration options and syntax is detailed in apt.conf(5).\n"
+           "Information about how to configure sources can be found in sources.list(5).\n"
+           "Package and version choices can be expressed via apt_preferences(5).\n"
+           "Security details are available in apt-secure(8).\n");
+   if (Binary == APT_CMD::APT_GET || Binary == APT_CMD::APT)
+      std::cout << std::right << std::setw(70) << _("This APT has Super Cow Powers.") << std::endl;
+   else if (Binary == APT_CMD::APT_HELPER)
+      std::cout << std::right << std::setw(70) << _("This APT helper has Super Meep Powers.") << std::endl;
+   return true;
 }
                                                                        /*}}}*/
 static void BinarySpecificConfiguration(char const * const Binary)     /*{{{*/
@@ -397,6 +440,7 @@ static void BinarySpecificConfiguration(char const * const Binary)  /*{{{*/
       _config->CndSet("Binary::apt::APT::Cmd::Show-Update-Stats", true);
       _config->CndSet("Binary::apt::DPkg::Progress-Fancy", true);
       _config->CndSet("Binary::apt::Acquire::AllowInsecureRepositories", false);
+      _config->CndSet("Binary::apt::APT::Keep-Downloaded-Packages", false);
    }
 
    _config->Set("Binary", binary);
@@ -405,8 +449,10 @@ static void BinarySpecificConfiguration(char const * const Binary) /*{{{*/
 }
                                                                        /*}}}*/
 std::vector<CommandLine::Dispatch> ParseCommandLine(CommandLine &CmdL, APT_CMD const Binary,/*{{{*/
-      Configuration * const * const Cnf, pkgSystem ** const Sys, int const argc, const char *argv[])
+      Configuration * const * const Cnf, pkgSystem ** const Sys, int const argc, const char *argv[],
+      bool (*ShowHelp)(CommandLine &), std::vector<aptDispatchWithHelp> (*GetCommands)(void))
 {
+   InitLocale(Binary);
    if (Cnf != NULL && pkgInitConfig(**Cnf) == false)
    {
       _error->DumpErrors();
@@ -440,7 +486,7 @@ std::vector<CommandLine::Dispatch> ParseCommandLine(CommandLine &CmdL, APT_CMD c
        (Sys != NULL && pkgInitSystem(*_config, *Sys) == false))
    {
       if (_config->FindB("version") == true)
-        ShowCommonHelp(Binary, CmdL, CmdsWithHelp.data());
+        ShowCommonHelp(Binary, CmdL, CmdsWithHelp, ShowHelp);
 
       _error->DumpErrors();
       exit(100);
@@ -450,12 +496,12 @@ std::vector<CommandLine::Dispatch> ParseCommandLine(CommandLine &CmdL, APT_CMD c
    if (_config->FindB("help") == true || _config->FindB("version") == true ||
         (CmdL.FileSize() > 0 && strcmp(CmdL.FileList[0], "help") == 0))
    {
-      ShowCommonHelp(Binary, CmdL, CmdsWithHelp.data());
+      ShowCommonHelp(Binary, CmdL, CmdsWithHelp, ShowHelp);
       exit(0);
    }
    if (Cmds.empty() == false && CmdL.FileSize() == 0)
    {
-      ShowCommonHelp(Binary, CmdL, CmdsWithHelp.data());
+      ShowCommonHelp(Binary, CmdL, CmdsWithHelp, ShowHelp);
       exit(1);
    }
    return Cmds;