summaryrefslogtreecommitdiffstats
path: root/apt-pkg/edsp/edspsystem.cc
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-13 09:59:37 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-13 09:59:37 +0000
commit76e2632459410dec81337edb6a9fee33c9a660f3 (patch)
treea73345df208eede4a4daad340515c9328f34625c /apt-pkg/edsp/edspsystem.cc
parentInitial commit. (diff)
downloadapt-76e2632459410dec81337edb6a9fee33c9a660f3.tar.xz
apt-76e2632459410dec81337edb6a9fee33c9a660f3.zip
Adding upstream version 2.7.12.upstream/2.7.12
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'apt-pkg/edsp/edspsystem.cc')
-rw-r--r--apt-pkg/edsp/edspsystem.cc166
1 files changed, 166 insertions, 0 deletions
diff --git a/apt-pkg/edsp/edspsystem.cc b/apt-pkg/edsp/edspsystem.cc
new file mode 100644
index 0000000..b12b20d
--- /dev/null
+++ b/apt-pkg/edsp/edspsystem.cc
@@ -0,0 +1,166 @@
+// -*- mode: cpp; mode: fold -*-
+// Description /*{{{*/
+/* ######################################################################
+
+ This system provides the abstraction to use the scenario file as the
+ only source of package information to be able to feed the created file
+ back to APT for its own consumption (eat your own dogfood).
+
+ ##################################################################### */
+ /*}}}*/
+// Include Files /*{{{*/
+#include <config.h>
+
+#include <apt-pkg/configuration.h>
+#include <apt-pkg/debversion.h>
+#include <apt-pkg/edspindexfile.h>
+#include <apt-pkg/edspsystem.h>
+#include <apt-pkg/fileutl.h>
+#include <apt-pkg/pkgcache.h>
+
+#include <cstddef>
+#include <cstdlib>
+#include <unistd.h>
+
+#include <string>
+#include <vector>
+
+ /*}}}*/
+
+// System::System - Constructor /*{{{*/
+edspLikeSystem::edspLikeSystem(char const * const Label) : pkgSystem(Label, &debVS)
+{
+}
+edspSystem::edspSystem() : edspLikeSystem("Debian APT solver interface")
+{
+}
+eippSystem::eippSystem() : edspLikeSystem("Debian APT planner interface")
+{
+}
+ /*}}}*/
+// System::Lock - Get the lock /*{{{*/
+bool edspLikeSystem::Lock(OpProgress *)
+{
+ return true;
+}
+ /*}}}*/
+// System::UnLock - Drop a lock /*{{{*/
+bool edspLikeSystem::UnLock(bool /*NoErrors*/)
+{
+ return true;
+}
+ /*}}}*/
+// System::CreatePM - Create the underlying package manager /*{{{*/
+// ---------------------------------------------------------------------
+/* we can't use edsp input as input for real installations - just a
+ simulation can work, but everything else will fail bigtime */
+pkgPackageManager *edspLikeSystem::CreatePM(pkgDepCache * /*Cache*/) const
+{
+ return nullptr;
+}
+ /*}}}*/
+// System::Initialize - Setup the configuration space.. /*{{{*/
+bool edspLikeSystem::Initialize(Configuration &Cnf)
+{
+ Cnf.Set("Dir::Log", "/dev/null");
+ // state is included completely in the input files
+ Cnf.Set("Dir::Etc::preferences", "/dev/null");
+ Cnf.Set("Dir::Etc::preferencesparts", "/dev/null");
+ Cnf.Set("Dir::State::status","/dev/null");
+ Cnf.Set("Dir::State::extended_states","/dev/null");
+ Cnf.Set("Dir::State::lists","/dev/null");
+ // do not store an mmap cache
+ Cnf.Set("Dir::Cache::pkgcache", "");
+ Cnf.Set("Dir::Cache::srcpkgcache", "");
+ // the protocols only propose actions, not do them
+ Cnf.Set("Debug::NoLocking", "true");
+ Cnf.Set("APT::Get::Simulate", "true");
+
+ StatusFile.reset(nullptr);
+ return true;
+}
+bool edspSystem::Initialize(Configuration &Cnf)
+{
+ if (edspLikeSystem::Initialize(Cnf) == false)
+ return false;
+ std::string const tmp = GetTempDir();
+ char tmpname[300];
+ snprintf(tmpname, sizeof(tmpname), "%s/apt-edsp-solver-XXXXXX", tmp.c_str());
+ if (nullptr == mkdtemp(tmpname))
+ return false;
+ tempDir = tmpname;
+ tempStatesFile = flCombine(tempDir, "extended_states");
+ Cnf.Set("Dir::State::extended_states", tempStatesFile);
+ tempPrefsFile = flCombine(tempDir, "apt_preferences");
+ Cnf.Set("Dir::Etc::preferences", tempPrefsFile);
+ return true;
+}
+ /*}}}*/
+// System::ArchiveSupported - Is a file format supported /*{{{*/
+bool edspLikeSystem::ArchiveSupported(const char * /*Type*/)
+{
+ return false;
+}
+ /*}}}*/
+// System::Score - Never use the EDSP system automatically /*{{{*/
+signed edspLikeSystem::Score(Configuration const &)
+{
+ return -1000;
+}
+ /*}}}*/
+// System::FindIndex - Get an index file for status files /*{{{*/
+bool edspLikeSystem::FindIndex(pkgCache::PkgFileIterator File,
+ pkgIndexFile *&Found) const
+{
+ if (StatusFile == 0)
+ return false;
+ if (StatusFile->FindInCache(*File.Cache()) == File)
+ {
+ Found = StatusFile.get();
+ return true;
+ }
+
+ return false;
+}
+ /*}}}*/
+bool edspSystem::AddStatusFiles(std::vector<pkgIndexFile *> &List) /*{{{*/
+{
+ if (StatusFile == nullptr)
+ {
+ if (_config->Find("edsp::scenario", "") == "/nonexistent/stdin")
+ StatusFile.reset(new edspIndex("/nonexistent/stdin"));
+ else
+ StatusFile.reset(new edspIndex(_config->FindFile("edsp::scenario")));
+ }
+ List.push_back(StatusFile.get());
+ return true;
+}
+ /*}}}*/
+bool eippSystem::AddStatusFiles(std::vector<pkgIndexFile *> &List) /*{{{*/
+{
+ if (StatusFile == nullptr)
+ {
+ if (_config->Find("eipp::scenario", "") == "/nonexistent/stdin")
+ StatusFile.reset(new eippIndex("/nonexistent/stdin"));
+ else
+ StatusFile.reset(new eippIndex(_config->FindFile("eipp::scenario")));
+ }
+ List.push_back(StatusFile.get());
+ return true;
+}
+ /*}}}*/
+
+edspLikeSystem::~edspLikeSystem() {}
+edspSystem::~edspSystem()
+{
+ if (tempDir.empty())
+ return;
+
+ RemoveFile("~edspSystem", tempStatesFile);
+ RemoveFile("~edspSystem", tempPrefsFile);
+ rmdir(tempDir.c_str());
+}
+eippSystem::~eippSystem() {}
+
+APT_HIDDEN edspSystem edspSys;
+APT_HIDDEN eippSystem eippSys;