]> git.saurik.com Git - apt.git/blobdiff - apt-pkg/acquire-item.cc
Simplified time calculations
[apt.git] / apt-pkg / acquire-item.cc
index 532d4e6f2f1c4eb4c62d790b4ccb090cbfc4fc2e..7e4ea5043a514fc63a66dd2758a868686aca38cd 100644 (file)
@@ -1,6 +1,6 @@
 // -*- mode: cpp; mode: fold -*-
 // Description                                                         /*{{{*/
-// $Id: acquire-item.cc,v 1.12 1998/11/13 07:08:48 jgg Exp $
+// $Id: acquire-item.cc,v 1.25 1999/02/27 22:29:11 jgg Exp $
 /* ######################################################################
 
    Acquire Item - Item to acquire
@@ -9,7 +9,7 @@
    cannot create an item that fetches two uri's to two files at the same 
    time. The pkgAcqIndex class creates a second class upon instantiation
    to fetch the other index files because of this.
-   
+
    ##################################################################### */
                                                                        /*}}}*/
 // Include Files                                                       /*{{{*/
@@ -19,7 +19,7 @@
 #include <apt-pkg/acquire-item.h>
 #include <apt-pkg/configuration.h>
 #include <apt-pkg/error.h>
-#include <strutl.h>
+#include <apt-pkg/strutl.h>
 
 #include <sys/stat.h>
 #include <unistd.h>
@@ -51,20 +51,32 @@ pkgAcquire::Item::~Item()
 // ---------------------------------------------------------------------
 /* We return to an idle state if there are still other queues that could
    fetch this object */
-void pkgAcquire::Item::Failed(string Message)
+void pkgAcquire::Item::Failed(string Message,pkgAcquire::MethodConfig *Cnf)
 {
    Status = StatIdle;
+   ErrorText = LookupTag(Message,"Message");
    if (QueueCounter <= 1)
    {
-      ErrorText = LookupTag(Message,"Message");
+      /* This indicates that the file is not available right now but might
+         be sometime later. If we do a retry cycle then this should be
+        retried [CDROMs] */
+      if (Cnf->LocalOnly == true &&
+         StringToBool(LookupTag(Message,"Transient-Failure"),false) == true)
+      {
+        Status = StatIdle;
+        Dequeue();
+        return;
+      }
+      
       Status = StatError;
-      Owner->Dequeue(this);
+      Dequeue();
    }   
 }
                                                                        /*}}}*/
 // Acquire::Item::Start - Item has begun to download                   /*{{{*/
 // ---------------------------------------------------------------------
-/* */
+/* Stash status and the file size. Note that setting Complete means 
+   sub-phases of the acquire process such as decompresion are operating */
 void pkgAcquire::Item::Start(string Message,unsigned long Size)
 {
    Status = StatFetching;
@@ -147,9 +159,9 @@ string pkgAcqIndex::Custom600Headers()
    
    struct stat Buf;
    if (stat(Final.c_str(),&Buf) != 0)
-      return string();
+      return "\nIndex-File: true";
    
-   return "\nLast-Modified: " + TimeRFC1123(Buf.st_mtime);
+   return "\nIndex-File: true\nLast-Modified: " + TimeRFC1123(Buf.st_mtime);
 }
                                                                        /*}}}*/
 // AcqIndex::Done - Finished a fetch                                   /*{{{*/
@@ -224,6 +236,14 @@ void pkgAcqIndex::Done(string Message,unsigned long Size,string MD5)
    Mode = "gzip";
 }
                                                                        /*}}}*/
+// AcqIndex::Describe - Describe the Item                              /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+string pkgAcqIndex::Describe()
+{
+   return Location->PackagesURI();
+}
+                                                                       /*}}}*/
 
 // AcqIndexRel::pkgAcqIndexRel - Constructor                           /*{{{*/
 // ---------------------------------------------------------------------
@@ -259,9 +279,9 @@ string pkgAcqIndexRel::Custom600Headers()
    
    struct stat Buf;
    if (stat(Final.c_str(),&Buf) != 0)
-      return string();
+      return "\nIndex-File: true";
    
-   return "\nLast-Modified: " + TimeRFC1123(Buf.st_mtime);
+   return "\nIndex-File: true\nLast-Modified: " + TimeRFC1123(Buf.st_mtime);
 }
                                                                        /*}}}*/
 // AcqIndexRel::Done - Item downloaded OK                              /*{{{*/
@@ -302,16 +322,65 @@ void pkgAcqIndexRel::Done(string Message,unsigned long Size,string MD5)
    Rename(DestFile,FinalFile);
 }
                                                                        /*}}}*/
+// AcqIndexRel::Describe - Describe the Item                           /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+string pkgAcqIndexRel::Describe()
+{
+   return Location->ReleaseURI();
+}
+                                                                       /*}}}*/
+// AcqIndexRel::Failed - Silence failure messages for missing rel files        /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+void pkgAcqIndexRel::Failed(string Message,pkgAcquire::MethodConfig *Cnf)
+{
+   // This is the retry counter
+   if (Cnf->LocalOnly == true || 
+       StringToBool(LookupTag(Message,"Transient-Failure"),false) == false)
+   {      
+      // Ignore this
+      Status = StatDone;
+      Complete = false;
+      Dequeue();
+      return;
+   }
+   
+   Item::Failed(Message,Cnf);
+}
+                                                                       /*}}}*/
 
 // AcqArchive::AcqArchive - Constructor                                        /*{{{*/
 // ---------------------------------------------------------------------
-/* */
+/* This just sets up the initial fetch environment and queues the first
+   possibilitiy */
 pkgAcqArchive::pkgAcqArchive(pkgAcquire *Owner,pkgSourceList *Sources,
-                            pkgRecords *Recs,pkgCache::VerIterator const &Version) :
-               Item(Owner), Version(Version), Sources(Sources), Recs(Recs)
+                            pkgRecords *Recs,pkgCache::VerIterator const &Version,
+                            string &StoreFilename) :
+               Item(Owner), Version(Version), Sources(Sources), Recs(Recs), 
+               StoreFilename(StoreFilename), Vf(Version.FileList())
 {
+   Retries = _config->FindI("Acquire::Retries",0);
+      
+   // Generate the final file name as: package_version_arch.deb
+   StoreFilename = QuoteString(Version.ParentPkg().Name(),"_:") + '_' +
+                   QuoteString(Version.VerStr(),"_:") + '_' +
+                   QuoteString(Version.Arch(),"_:.") + ".deb";
+   
    // Select a source
-   pkgCache::VerFileIterator Vf = Version.FileList();
+   if (QueueNext() == false && _error->PendingError() == false)
+      _error->Error("I wasn't able to locate file for the %s package. "
+                   "This might mean you need to manually fix this package.",
+                   Version.ParentPkg().Name());
+}
+                                                                       /*}}}*/
+// AcqArchive::QueueNext - Queue the next file source                  /*{{{*/
+// ---------------------------------------------------------------------
+/* This queues the next available file version for download. It checks if
+   the archive is already available in the cache and stashs the MD5 for
+   checking later. */
+bool pkgAcqArchive::QueueNext()
+{
    for (; Vf.end() == false; Vf++)
    {
       // Ignore not source sources
@@ -331,19 +400,16 @@ pkgAcqArchive::pkgAcqArchive(pkgAcquire *Owner,pkgSourceList *Sources,
       // Grab the text package record
       pkgRecords::Parser &Parse = Recs->Lookup(Vf);
       if (_error->PendingError() == true)
-        return;
+        return false;
       
       PkgFile = Parse.FileName();
       MD5 = Parse.MD5Hash();
       if (PkgFile.empty() == true)
-      {
-        _error->Error("Unable to locate a file name for package %s, "
-                      "perhaps the package files are corrupted.",
-                      Version.ParentPkg().Name());
-        return;
-      }
+        return _error->Error("The package index files are corrupted. No Filename: "
+                             "field for package %s."
+                             ,Version.ParentPkg().Name());
 
-      // See if we already have the file.
+      // See if we already have the file. (Legacy filenames)
       FileSize = Version->Size;
       string FinalFile = _config->FindDir("Dir::Cache::Archives") + flNotDir(PkgFile);
       struct stat Buf;
@@ -355,38 +421,55 @@ pkgAcqArchive::pkgAcqArchive(pkgAcquire *Owner,pkgSourceList *Sources,
            Complete = true;
            Local = true;
            Status = StatDone;
-           DestFile = FinalFile;
-           return;
+           StoreFilename = DestFile = FinalFile;
+           return true;
         }
         
         /* Hmm, we have a file and its size does not match, this shouldnt
            happen.. */
         unlink(FinalFile.c_str());
       }
-      
-      DestFile = _config->FindDir("Dir::Cache::Archives") + "partial/" + flNotDir(PkgFile);
-      
+
+      // Check it again using the new style output filenames
+      FinalFile = _config->FindDir("Dir::Cache::Archives") + flNotDir(StoreFilename);
+      if (stat(FinalFile.c_str(),&Buf) == 0)
+      {
+        // Make sure the size matches
+        if ((unsigned)Buf.st_size == Version->Size)
+        {
+           Complete = true;
+           Local = true;
+           Status = StatDone;
+           StoreFilename = DestFile = FinalFile;
+           return true;
+        }
+        
+        /* Hmm, we have a file and its size does not match, this shouldnt
+           happen.. */
+        unlink(FinalFile.c_str());
+      }
+
+      DestFile = _config->FindDir("Dir::Cache::Archives") + "partial/" + flNotDir(StoreFilename);
+
       // Create the item
       Desc.URI = Location->ArchiveURI(PkgFile);
       Desc.Description = Location->ArchiveInfo(Version);
       Desc.Owner = this;
       Desc.ShortDesc = Version.ParentPkg().Name();
       QueueURI(Desc);
-      
-      return;
+
+      Vf++;
+      return true;
    }
-   
-  _error->Error("I wasn't able to locate file for the %s package. "
-               "This probably means you need to rerun update.",
-               Version.ParentPkg().Name());
-}
+   return false;
+}   
                                                                        /*}}}*/
 // AcqArchive::Done - Finished fetching                                        /*{{{*/
 // ---------------------------------------------------------------------
 /* */
 void pkgAcqArchive::Done(string Message,unsigned long Size,string Md5Hash)
 {
-   Item::Done(Message,Size,MD5);
+   Item::Done(Message,Size,Md5Hash);
    
    // Check the size
    if (Size != Version->Size)
@@ -415,21 +498,53 @@ void pkgAcqArchive::Done(string Message,unsigned long Size,string Md5Hash)
    }
 
    Complete = true;
-   
-   // We have to copy it into place
+
+   // Reference filename
    if (FileName != DestFile)
    {
-      DestFile = FileName;
+      StoreFilename = DestFile = FileName;
       Local = true;
       return;
    }
    
    // Done, move it into position
    string FinalFile = _config->FindDir("Dir::Cache::Archives");
-   FinalFile += flNotDir(DestFile);
+   FinalFile += flNotDir(StoreFilename);
    Rename(DestFile,FinalFile);
    
-   DestFile = FinalFile;
+   StoreFilename = DestFile = FinalFile;
    Complete = true;
 }
                                                                        /*}}}*/
+// AcqArchive::Describe - Describe the Item                            /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+string pkgAcqArchive::Describe()
+{
+   return Desc.URI;
+}
+                                                                       /*}}}*/
+// AcqArchive::Failed - Failure handler                                        /*{{{*/
+// ---------------------------------------------------------------------
+/* Here we try other sources */
+void pkgAcqArchive::Failed(string Message,pkgAcquire::MethodConfig *Cnf)
+{
+   ErrorText = LookupTag(Message,"Message");
+   if (QueueNext() == false)
+   {
+      // This is the retry counter
+      if (Retries != 0 &&
+         Cnf->LocalOnly == false &&
+         StringToBool(LookupTag(Message,"Transient-Failure"),false) == true)
+      {
+        Retries--;
+        Vf = Version.FileList();
+        if (QueueNext() == true)
+           return;
+      }
+      
+      StoreFilename = string();
+      Item::Failed(Message,Cnf);
+   }
+}
+                                                                       /*}}}*/