X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/82e369c4b93b5b81db7988ab377a3c5bd388268e..3b3028467ceccca0b73a8f53051c0fa4de313111:/cmdline/apt-internal-solver.cc

diff --git a/cmdline/apt-internal-solver.cc b/cmdline/apt-internal-solver.cc
index 53b38ea43..939061b93 100644
--- a/cmdline/apt-internal-solver.cc
+++ b/cmdline/apt-internal-solver.cc
@@ -20,9 +20,22 @@
 #include <apt-pkg/fileutl.h>
 #include <apt-pkg/pkgsystem.h>
 #include <apt-pkg/upgrade.h>
-
+#include <apt-pkg/configuration.h>
+#include <apt-pkg/depcache.h>
+#include <apt-pkg/pkgcache.h>
+#include <apt-pkg/cacheiterators.h>
+
+#include <apt-private/private-output.h>
+#include <apt-private/private-cmndline.h>
+
+#include <string.h>
+#include <iostream>
+#include <sstream>
+#include <list>
+#include <string>
 #include <unistd.h>
 #include <cstdio>
+#include <stdlib.h>
 
 #include <apti18n.h>
 									/*}}}*/
@@ -30,9 +43,8 @@
 // ShowHelp - Show a help screen					/*{{{*/
 // ---------------------------------------------------------------------
 /* */
-bool ShowHelp(CommandLine &CmdL) {
-	ioprintf(std::cout,_("%s %s for %s compiled on %s %s\n"),PACKAGE,PACKAGE_VERSION,
-		 COMMON_ARCH,__DATE__,__TIME__);
+static bool ShowHelp(CommandLine &) {
+	ioprintf(std::cout, "%s %s (%s)\n", PACKAGE, PACKAGE_VERSION, COMMON_ARCH);
 
 	std::cout <<
 		_("Usage: apt-internal-solver\n"
@@ -48,6 +60,12 @@ bool ShowHelp(CommandLine &CmdL) {
 	return true;
 }
 									/*}}}*/
+APT_NORETURN static void DIE(std::string const &message) {		/*{{{*/
+	std::cerr << "ERROR: " << message << std::endl;
+	_error->DumpErrors(std::cerr);
+	exit(EXIT_FAILURE);
+}
+									/*}}}*/
 int main(int argc,const char *argv[])					/*{{{*/
 {
 	CommandLine::Args Args[] = {
@@ -59,19 +77,11 @@ int main(int argc,const char *argv[])					/*{{{*/
 		{'o',"option",0,CommandLine::ArbItem},
 		{0,0,0,0}};
 
-	CommandLine CmdL(Args,_config);
-	if (pkgInitConfig(*_config) == false ||
-	    CmdL.Parse(argc,argv) == false) {
-		_error->DumpErrors();
-		return 2;
-	}
+        // we really don't need anything
+        DropPrivileges();
 
-	// See if the help should be shown
-	if (_config->FindB("help") == true ||
-	    _config->FindB("version") == true) {
-		ShowHelp(CmdL);
-		return 1;
-	}
+	CommandLine CmdL;
+	ParseCommandLine(CmdL, NULL, Args, &_config, NULL, argc, argv, ShowHelp);
 
 	if (CmdL.FileList[0] != 0 && strcmp(CmdL.FileList[0], "scenario") == 0)
 	{
@@ -107,34 +117,29 @@ int main(int argc,const char *argv[])					/*{{{*/
 
 	EDSP::WriteProgress(0, "Start up solver…", output);
 
-	if (pkgInitSystem(*_config,_system) == false) {
-		std::cerr << "System could not be initialized!" << std::endl;
-		return 1;
-	}
+	if (pkgInitSystem(*_config,_system) == false)
+		DIE("System could not be initialized!");
 
 	EDSP::WriteProgress(1, "Read request…", output);
 
 	if (WaitFd(input, false, 5) == false)
-		std::cerr << "WAIT timed out in the resolver" << std::endl;
+		DIE("WAIT timed out in the resolver");
 
 	std::list<std::string> install, remove;
 	bool upgrade, distUpgrade, autoRemove;
-	if (EDSP::ReadRequest(input, install, remove, upgrade, distUpgrade, autoRemove) == false) {
-		std::cerr << "Parsing the request failed!" << std::endl;
-		return 2;
-	}
+	if (EDSP::ReadRequest(input, install, remove, upgrade, distUpgrade, autoRemove) == false)
+		DIE("Parsing the request failed!");
 
 	EDSP::WriteProgress(5, "Read scenario…", output);
 
 	pkgCacheFile CacheFile;
-	CacheFile.Open(NULL, false);
+	if (CacheFile.Open(NULL, false) == false)
+		DIE("Failed to open CacheFile!");
 
 	EDSP::WriteProgress(50, "Apply request on scenario…", output);
 
-	if (EDSP::ApplyRequest(install, remove, CacheFile) == false) {
-		std::cerr << "Failed to apply request to depcache!" << std::endl;
-		return 3;
-	}
+	if (EDSP::ApplyRequest(install, remove, CacheFile) == false)
+		DIE("Failed to apply request to depcache!");
 
 	pkgProblemResolver Fix(CacheFile);
 	for (std::list<std::string>::const_iterator i = remove.begin();
@@ -158,27 +163,27 @@ int main(int argc,const char *argv[])					/*{{{*/
 
 	EDSP::WriteProgress(60, "Call problemresolver on current scenario…", output);
 
+	std::string failure;
 	if (upgrade == true) {
-		if (pkgAllUpgrade(CacheFile) == false) {
-			EDSP::WriteError("ERR_UNSOLVABLE_UPGRADE", "An upgrade error occured", output);
-			return 0;
-		}
+		if (APT::Upgrade::Upgrade(CacheFile, APT::Upgrade::FORBID_REMOVE_PACKAGES | APT::Upgrade::FORBID_INSTALL_NEW_PACKAGES) == false)
+			failure = "ERR_UNSOLVABLE_UPGRADE";
 	} else if (distUpgrade == true) {
-		if (pkgDistUpgrade(CacheFile) == false) {
-			EDSP::WriteError("ERR_UNSOLVABLE_DIST_UPGRADE", "An dist-upgrade error occured", output);
-			return 0;
-		}
-	} else if (Fix.Resolve() == false) {
-		EDSP::WriteError("ERR_UNSOLVABLE", "An error occured", output);
+		if (APT::Upgrade::Upgrade(CacheFile, APT::Upgrade::ALLOW_EVERYTHING) == false)
+			failure = "ERR_UNSOLVABLE_DIST_UPGRADE";
+	} else if (Fix.Resolve() == false)
+		failure = "ERR_UNSOLVABLE";
+
+	if (failure.empty() == false) {
+		std::ostringstream broken;
+		ShowBroken(broken, CacheFile, false);
+		EDSP::WriteError(failure.c_str(), broken.str(), output);
 		return 0;
 	}
 
 	EDSP::WriteProgress(95, "Write solution…", output);
 
-	if (EDSP::WriteSolution(CacheFile, output) == false) {
-		std::cerr << "Failed to output the solution!" << std::endl;
-		return 4;
-	}
+	if (EDSP::WriteSolution(CacheFile, output) == false)
+		DIE("Failed to output the solution!");
 
 	EDSP::WriteProgress(100, "Done", output);