[ABI] merged the libudev-dlopen branch, this allows to pass

"apt-udev-auto" to Acquire::Cdrom::mount and the cdrom method will  
dynamically find/mount the cdrom device (if libhal is available)

2 files changed, 105 insertions, 26 deletions

diff --git a/methods/cdrom.cc b/methods/cdrom.cc
index 601bc11c9..9802eb46c 100644
--- a/methods/cdrom.cc
+++ b/methods/cdrom.cc
@@ -9,6 +9,7 @@
 									/*}}}*/
 // Include Files							/*{{{*/
 #include <apt-pkg/acquire-method.h>
+#include <apt-pkg/cdrom.h>
 #include <apt-pkg/cdromutl.h>
 #include <apt-pkg/error.h>
 #include <apt-pkg/configuration.h>
@@ -17,6 +18,7 @@
 
 #include <sys/stat.h>
 #include <unistd.h>
+#include <dlfcn.h>
 
 #include <iostream>
 #include <apti18n.h>
@@ -27,15 +29,20 @@ using namespace std;
 class CDROMMethod : public pkgAcqMethod
 {
    bool DatabaseLoaded;
+   bool Debug;
+
    ::Configuration Database;
    string CurrentID;
    string CDROM;
    bool MountedByApt;
-   
+   pkgUdevCdromDevices UdevCdroms;
+ 
+   bool IsCorrectCD(URI want, string MountPath);
+   bool AutoDetectAndMount(URI);
    virtual bool Fetch(FetchItem *Itm);
    string GetID(string Name);
    virtual void Exit();
-   
+      
    public:
    
    CDROMMethod();
@@ -50,14 +57,15 @@ CDROMMethod::CDROMMethod() : pkgAcqMethod("1.0",SingleInstance | LocalOnly |
                                           DatabaseLoaded(false), 
                                           MountedByApt(false)
 {
+   UdevCdroms.Dlopen();
 };
 									/*}}}*/
 // CDROMMethod::Exit - Unmount the disc if necessary			/*{{{*/
 // ---------------------------------------------------------------------
 /* */
 void CDROMMethod::Exit()
-{
-   if (MountedByApt == true)
+{ 
+  if (MountedByApt == true)
       UnmountCdrom(CDROM);
 }
 									/*}}}*/
@@ -81,16 +89,94 @@ string CDROMMethod::GetID(string Name)
    return string();
 }
 									/*}}}*/
+// CDROMMethod::AutoDetectAndMount                                      /*{{{*/
+// ---------------------------------------------------------------------
+/* Modifies class varaiable CDROM to the mountpoint */
+bool CDROMMethod::AutoDetectAndMount(URI Get)
+{
+   vector<struct CdromDevice> v = UdevCdroms.Scan();
+
+   // first check if its mounted somewhere already
+   for (unsigned int i=0; i < v.size(); i++)
+   {
+      if (v[i].Mounted)
+      {
+	 if (Debug)
+	    clog << "Checking mounted cdrom device " << v[i].DeviceName << endl;
+	 if (IsCorrectCD(Get, v[i].MountPath))
+	 {
+	    CDROM = v[i].MountPath;
+	    return true;
+	 }
+      }
+   }
+
+   // we are not supposed to mount, exit
+   if (_config->FindB("APT::CDROM::NoMount",false) == true)
+      return false;
+
+   // check if we have the mount point
+   if (!FileExists("/media/apt"))
+      mkdir("/media/apt", 0755);
+
+   // now try mounting
+   for (unsigned int i=0; i < v.size(); i++)
+   {
+      if (!v[i].Mounted)
+      {
+	 if(MountCdrom("/media/apt", v[i].DeviceName)) 
+	 {
+	    if (IsCorrectCD(Get, "/media/apt"))
+	    {
+	       MountedByApt = true;
+	       CDROM = "/media/apt";
+	       return true;
+	    } else {
+	       UnmountCdrom("/media/apt");
+	    }
+	 }
+      }
+   }
+
+   return false;
+}
+									/*}}}*/
+// CDROMMethod::IsCorrectCD                                             /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool CDROMMethod::IsCorrectCD(URI want, string MountPath)
+{
+   string NewID;
+
+   for (unsigned int Version = 2; Version != 0; Version--)
+   {
+      if (IdentCdrom(MountPath,NewID,Version) == false)
+	 return false;
+      
+      if (Debug)
+	 clog << "ID " << Version << " " << NewID << endl;
+      
+      // A hit
+      if (Database.Find("CD::" + NewID) == want.Host)
+	 return true;
+   }
+   
+   return false;
+}
+									/*}}}*/
 // CDROMMethod::Fetch - Fetch a file					/*{{{*/
 // ---------------------------------------------------------------------
 /* */
 bool CDROMMethod::Fetch(FetchItem *Itm)
 {
+   FetchResult Res;
+
    URI Get = Itm->Uri;
    string File = Get.Path;
-   FetchResult Res;
+   Debug = _config->FindB("Debug::Acquire::cdrom", false);
 
-   bool Debug = _config->FindB("Debug::Acquire::cdrom",false);
+   if (Debug)
+      clog << "CDROMMethod::Fetch " << Itm->Uri << endl;
 
    /* All IMS queries are returned as a hit, CDROMs are readonly so 
       time stamps never change */
@@ -126,38 +212,31 @@ bool CDROMMethod::Fetch(FetchItem *Itm)
    }
 
    // We already have a CD inserted, but it is the wrong one
-   if (CurrentID.empty() == false && Database.Find("CD::" + CurrentID) != Get.Host)
+   if (CurrentID.empty() == false && 
+       CurrentID != "FAIL" &&
+       Database.Find("CD::" + CurrentID) != Get.Host)
    {
       Fail(_("Wrong CD-ROM"),true);
       return true;
    }
-   
+
    CDROM = _config->FindDir("Acquire::cdrom::mount","/cdrom/");
+   if (Debug)
+      clog << "Looking for CDROM at " << CDROM << endl;
+
    if (CDROM[0] == '.')
       CDROM= SafeGetCWD() + '/' + CDROM;
    string NewID;
+
    while (CurrentID.empty() == true)
    {
-      bool Hit = false;
+      if (CDROM == "apt-udev-auto/") 
+	 AutoDetectAndMount(Get);
+
       if(!IsMounted(CDROM))
 	 MountedByApt = MountCdrom(CDROM);
-      for (unsigned int Version = 2; Version != 0; Version--)
-      {
-	 if (IdentCdrom(CDROM,NewID,Version) == false)
-	    return false;
-	 
-	 if (Debug == true)
-	    clog << "ID " << Version << " " << NewID << endl;
       
-	 // A hit
-	 if (Database.Find("CD::" + NewID) == Get.Host)
-	 {
-	    Hit = true;
-	    break;
-	 }	 
-      }
-
-      if (Hit == true)
+      if (IsCorrectCD(Get, CDROM))
 	 break;
 	 
       // I suppose this should prompt somehow?
diff --git a/methods/makefile b/methods/makefile
index 589f9fa1c..134166ba3 100644
--- a/methods/makefile
+++ b/methods/makefile
@@ -40,7 +40,7 @@ include $(PROGRAM_H)
 
 # The cdrom method
 PROGRAM=cdrom
-SLIBS = -lapt-pkg $(INTLLIBS)
+SLIBS = -lapt-pkg -ldl $(INTLLIBS)
 LIB_MAKES = apt-pkg/makefile
 SOURCE = cdrom.cc
 include $(PROGRAM_H)