show globalerrors before asking for confirmation

Errors cause a kind of automatic no already, but warnings and notices
are only displayed at the end of the apt execution even through they
could effect the choice of saying yes/no to questions: E.g. if a
configuration (file) was ignored you wanted to have an effect or if an
external solver you used generated warnings suggesting that the solution
might be valid, but bogus non-the-less and similar things.

Note that this only moves those messages up to the question if the
answer is interactive – not if e.g. -y is used or no question is asked at
all so this has an effect only on interactive usage of apt(-get), not
script who might be parsing apt output.

apt-private/private-download.cc

@@ -66,8 +66,7 @@ bool AuthPrompt(std::vector<std::string> const &UntrustedList, bool const Prompt
    if (_config->FindI("quiet",0) < 2
        && _config->FindB("APT::Get::Assume-Yes",false) == false)
    {
-      c2out << _("Install these packages without verification?") << std::flush;
-      if (!YnPrompt(false))
+      if (!YnPrompt(_("Install these packages without verification?"), false))
          return _error->Error(_("Some packages could not be authenticated"));
 
       return true;

apt-private/private-install.cc

@@ -234,12 +234,12 @@ bool InstallPackages(CacheFile &Cache,bool ShwKept,bool Ask, bool Safety)
       // TRANSLATOR: This string needs to be typed by the user as a confirmation, so be
       //             careful with hard to type or special characters (like non-breaking spaces)
       const char *Prompt = _("Yes, do as I say!");
-      ioprintf(c2out,
+      std::string question;
+      strprintf(question,
 	       _("You are about to do something potentially harmful.\n"
 		 "To continue type in the phrase '%s'\n"
 		 " ?] "),Prompt);
-      c2out << std::flush;
-      if (AnalPrompt(Prompt) == false)
+      if (AnalPrompt(question, Prompt) == false)
       {
 	 c2out << _("Abort.") << std::endl;
 	 exit(1);
@@ -256,8 +256,7 @@ bool InstallPackages(CacheFile &Cache,bool ShwKept,bool Ask, bool Safety)
 	 if (_config->FindI("quiet",0) < 2 &&
 	     _config->FindB("APT::Get::Assume-Yes",false) == false)
 	 {
-            c2out << _("Do you want to continue?") << std::flush;
- 	    if (YnPrompt() == false)
+ 	    if (YnPrompt(_("Do you want to continue?")) == false)
 	    {
 	       c2out << _("Abort.") << std::endl;
 	       exit(1);

apt-private/private-output.cc

@@ -650,8 +650,21 @@ void Stats(ostream &out,pkgDepCache &Dep)
 // YnPrompt - Yes No Prompt.						/*{{{*/
 // ---------------------------------------------------------------------
 /* Returns true on a Yes.*/
-bool YnPrompt(bool Default)
+bool YnPrompt(char const * const Question, bool Default)
 {
+   auto const AssumeYes = _config->FindB("APT::Get::Assume-Yes",false);
+   auto const AssumeNo = _config->FindB("APT::Get::Assume-No",false);
+   // if we ask interactively, show warnings/notices before the question
+   if (AssumeYes == false && AssumeNo == false)
+   {
+      if (_config->FindI("quiet",0) > 0)
+	 _error->DumpErrors(c2out);
+      else
+	 _error->DumpErrors(c2out, GlobalError::DEBUG);
+   }
+
+   c2out << Question << std::flush;
+
    /* nl_langinfo does not support LANGUAGE setting, so we unset it here
       to have the help-message (hopefully) match the expected characters */
    char * language = getenv("LANGUAGE");
@@ -679,13 +692,13 @@ bool YnPrompt(bool Default)
       free(language);
    }
 
-   if (_config->FindB("APT::Get::Assume-Yes",false) == true)
+   if (AssumeYes)
    {
       // TRANSLATOR: "Yes" answer printed for a yes/no question if --assume-yes is set
       c1out << _("Y") << std::endl;
       return true;
    }
-   else if (_config->FindB("APT::Get::Assume-No",false) == true)
+   else if (AssumeNo)
    {
       // TRANSLATOR: "No" answer printed for a yes/no question if --assume-no is set
       c1out << _("N") << std::endl;
@@ -722,8 +735,14 @@ bool YnPrompt(bool Default)
 // AnalPrompt - Annoying Yes No Prompt.					/*{{{*/
 // ---------------------------------------------------------------------
 /* Returns true on a Yes.*/
-bool AnalPrompt(const char *Text)
+bool AnalPrompt(std::string const &Question, const char *Text)
 {
+   if (_config->FindI("quiet",0) > 0)
+      _error->DumpErrors(c2out);
+   else
+      _error->DumpErrors(c2out, GlobalError::DEBUG);
+   c2out << Question << std::flush;
+
    char Buf[1024];
    std::cin.getline(Buf,sizeof(Buf));
    if (strcmp(Buf,Text) == 0)

apt-private/private-output.h

@@ -101,8 +101,8 @@ bool ShowEssential(std::ostream &out,CacheFile &Cache);
 void Stats(std::ostream &out, pkgDepCache &Dep);
 
 // prompting
-bool YnPrompt(bool Default=true);
-bool AnalPrompt(const char *Text);
+bool YnPrompt(char const * const Question, bool Default=true);
+bool AnalPrompt(std::string const &Question, const char *Text);
 
 std::string PrettyFullName(pkgCache::PkgIterator const &Pkg);
 std::string CandidateVersion(pkgCacheFile * const Cache, pkgCache::PkgIterator const &Pkg);

apt-private/private-sources.cc

@@ -30,7 +30,6 @@ bool EditSources(CommandLine &CmdL)
 {
    bool res;
    pkgSourceList sl;
-   std::string outs;
 
    std::string sourceslist;
    if (CmdL.FileList[1] != NULL)
@@ -48,28 +47,25 @@ bool EditSources(CommandLine &CmdL)
    int lockfd = GetLock(sourceslist);
    if (lockfd < 0)
       return false;
-      
+
    do {
       EditFileInSensibleEditor(sourceslist);
       _error->PushToStack();
       res = sl.Read(sourceslist);
       if (!res) {
-         _error->DumpErrors(std::cerr, GlobalError::DEBUG, false);
-         strprintf(outs, _("Failed to parse %s. Edit again? "),
-                   sourceslist.c_str());
-         std::cout << outs;
+	 std::string outs;
+	 strprintf(outs, _("Failed to parse %s. Edit again? "), sourceslist.c_str());
          // FIXME: should we add a "restore previous" option here?
-         res = !YnPrompt(true);
+         res = !YnPrompt(outs.c_str(), true);
       }
       _error->RevertToStack();
    } while (res == false);
    close(lockfd);
 
    if (FileExists(sourceslist) && !before.VerifyFile(sourceslist)) {
-      strprintf(
-         outs, _("Your '%s' file changed, please run 'apt-get update'."),
+      ioprintf(
+         std::cout, _("Your '%s' file changed, please run 'apt-get update'."),
          sourceslist.c_str());
-      std::cout << outs << std::endl;
    }
 
    return true;

test/integration/test-bug-604401-files-are-directories

@@ -17,7 +17,7 @@ rmdir rootdir/etc/apt/apt.conf
 msgtest "Good link instead of a file as apt.conf ignored"
 echo 'Test::APT::Link "good";' > rootdir/etc/apt/good-link.conf
 ln -s rootdir/etc/apt/good-link.conf rootdir/etc/apt/apt.conf
-test -n "$(aptconfig shell TestLink 'Test::APT::Link')" && msgfail || msgpass
+testempty aptconfig shell TestLink 'Test::APT::Link'
 rm rootdir/etc/apt/apt.conf
 
 msgtest "Broken link instead of a file as apt.conf ignored"
@@ -36,12 +36,12 @@ rmdir rootdir/etc/apt/sources.list
 msgtest "Good link instead of a file as sources.list ignored"
 echo 'deb file:///tmp/debian sid main' > rootdir/etc/apt/good-link.list
 ln -s rootdir/etc/apt/good-link.list rootdir/etc/apt/sources.list
-test -n "$(aptget update --print-uris)" && msgfail || msgpass
+testempty aptget update --print-uris
 rm rootdir/etc/apt/sources.list
 
 msgtest "Broken link instead of a file as sources.list ignored"
 ln -s /tmp/doesnt-exist rootdir/etc/apt/sources.list
-test -n "$(aptget update --print-uris)" && msgfail || msgpass
+testempty aptget update --print-uris
 rm rootdir/etc/apt/sources.list
 
 
@@ -57,7 +57,8 @@ echo 'Package: apt
 Pin: release a=now
 Pin-Value: 1000' > rootdir/etc/apt/good-link.pref
 ln -s rootdir/etc/apt/good-link.pref rootdir/etc/apt/preferences
-test -n "$(aptcache policy | grep '1000 ')" && msgfail || msgpass
+testsuccess aptcache policy
+testfailure grep '1000 ' rootdir/tmp/testsucess.output
 rm rootdir/etc/apt/preferences
 
 msgtest "Broken link instead of a file as preferences ignored"