From 0d29b9d4368284782862c7b507c47002b79ddb27 Mon Sep 17 00:00:00 2001
From: Michael Vogt <mvo@ubuntu.com>
Date: Sat, 26 Apr 2014 00:00:51 +0200
Subject: WIP local deb install

---
 apt-pkg/deb/debindexfile.cc | 105 +++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 104 insertions(+), 1 deletion(-)

(limited to 'apt-pkg/deb/debindexfile.cc')

diff --git a/apt-pkg/deb/debindexfile.cc b/apt-pkg/deb/debindexfile.cc
index eee758b7a..f9864c67b 100644
--- a/apt-pkg/deb/debindexfile.cc
+++ b/apt-pkg/deb/debindexfile.cc
@@ -30,6 +30,7 @@
 #include <apt-pkg/pkgcachegen.h>
 #include <apt-pkg/pkgrecords.h>
 #include <apt-pkg/srcrecords.h>
+#include <apt-pkg/sptr.h>
 
 #include <stdio.h>
 #include <iostream>
@@ -667,6 +668,95 @@ APT_CONST bool debStatusIndex::Exists() const
 }
 									/*}}}*/
 
+// debDebPkgFile - Single .deb file                           		/*{{{*/
+// ---------------------------------------------------------------------
+debDebPkgFileIndex::debDebPkgFileIndex(std::string DebFile)
+   : pkgIndexFile(true), DebFile(DebFile)
+{
+   // FIXME: we need to os.normpath(DebFile) here, this is a lame workaround
+   DebFileFullPath = SafeGetCWD() + DebFile;
+}
+
+std::string debDebPkgFileIndex::ArchiveURI(std::string /*File*/) const
+{
+   return "file:" + DebFileFullPath;
+}
+
+bool debDebPkgFileIndex::Exists() const
+{
+   return FileExists(DebFile);
+}
+bool debDebPkgFileIndex::Merge(pkgCacheGenerator& Gen, OpProgress* Prog) const
+{
+   if(Prog)
+      Prog->SubProgress(0, "Reading deb file");
+
+   // get the control data out of the deb file vid dpkg -I
+   // ... can I haz libdpkg?
+   string cmd;
+   // FIXME: shell injection
+   strprintf(cmd, "dpkg -I %s control", DebFile.c_str());
+   FILE *p = popen(cmd.c_str(), "r");
+   if (p == NULL)
+      return _error->Error("popen failed");
+   // FIXME: static buffer
+   char buf[8*1024];
+   size_t n = fread(buf, 1, sizeof(buf)-1, p);
+   if (n == 0)
+      return _error->Errno("popen", "Failed to read dpkg pipe");
+   pclose(p);
+
+   // now write the control data to a tempfile
+   SPtr<FileFd> DebControl = GetTempFile("deb-file-" + DebFile);
+   if(DebControl == NULL)
+      return false;
+   DebControl->Write(buf, n);
+   // append size of the file
+   FileFd Fd(DebFile, FileFd::ReadOnly);
+   string Size;
+   strprintf(Size, "Size: %llu\n", Fd.Size());
+   DebControl->Write(Size.c_str(), Size.size());
+   // and rewind for the listparser
+   DebControl->Seek(0);
+
+   // and give it to the list parser
+   debDebFileParser Parser(DebControl, DebFile);
+   if(Gen.SelectFile(DebFile, "local", *this) == false)
+      return _error->Error("Problem with SelectFile %s", DebFile.c_str());
+
+   pkgCache::PkgFileIterator File = Gen.GetCurFile();
+   File->Size = DebControl->Size();
+   File->mtime = DebControl->ModificationTime();
+   
+   if (Gen.MergeList(Parser) == false)
+      return _error->Error("Problem with MergeLister for %s", DebFile.c_str());
+
+   return true;
+}
+pkgCache::PkgFileIterator debDebPkgFileIndex::FindInCache(pkgCache &Cache) const
+{
+   // FIXME: we could simply always return pkgCache::PkgFileIterator(Cache);
+   //        to indicate its never in the cache which will force a Merge()
+   pkgCache::PkgFileIterator File = Cache.FileBegin();
+   for (; File.end() == false; ++File)
+   {
+       if (File.FileName() == NULL || DebFile != File.FileName())
+	 continue;
+
+       return File;
+   }
+   
+   return File;
+}
+unsigned long debDebPkgFileIndex::Size() const
+{
+   struct stat buf;
+   if(stat(DebFile.c_str(), &buf) != 0)
+      return 0;
+   return buf.st_size;
+}
+									/*}}}*/
+
 // Index File types for Debian						/*{{{*/
 class debIFTypeSrc : public pkgIndexFile::Type
 {
@@ -699,10 +789,20 @@ class debIFTypeStatus : public pkgIndexFile::Type
    };
    debIFTypeStatus() {Label = "Debian dpkg status file";};
 };
+class debIFTypeDebPkgFile : public pkgIndexFile::Type
+{
+   public:
+   virtual pkgRecords::Parser *CreatePkgParser(pkgCache::PkgFileIterator File) const 
+   {
+      return new debDebFileRecordParser(File.FileName(),*File.Cache());
+   };
+   debIFTypeDebPkgFile() {Label = "deb Package file";};
+};
 static debIFTypeSrc _apt_Src;
 static debIFTypePkg _apt_Pkg;
 static debIFTypeTrans _apt_Trans;
 static debIFTypeStatus _apt_Status;
+static debIFTypeDebPkgFile _apt_DebPkgFile;
 
 const pkgIndexFile::Type *debSourcesIndex::GetType() const
 {
@@ -720,5 +820,8 @@ const pkgIndexFile::Type *debStatusIndex::GetType() const
 {
    return &_apt_Status;
 }
-
+const pkgIndexFile::Type *debDebPkgFileIndex::GetType() const
+{
+   return &_apt_DebPkgFile;
+}
 									/*}}}*/
-- 
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