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-rw-r--r--methods/copy.cc36
1 files changed, 29 insertions, 7 deletions
diff --git a/methods/copy.cc b/methods/copy.cc
index e81d0022b..5985b64fc 100644
--- a/methods/copy.cc
+++ b/methods/copy.cc
@@ -16,6 +16,7 @@
#include <apt-pkg/acquire-method.h>
#include <apt-pkg/error.h>
#include <apt-pkg/hashes.h>
+#include <apt-pkg/configuration.h>
#include <sys/stat.h>
#include <utime.h>
@@ -26,12 +27,28 @@
class CopyMethod : public pkgAcqMethod
{
virtual bool Fetch(FetchItem *Itm);
-
+ void CalculateHashes(FetchResult &Res);
+
public:
- CopyMethod() : pkgAcqMethod("1.0",SingleInstance) {};
+ CopyMethod() : pkgAcqMethod("1.0",SingleInstance|SendConfig) {};
};
+void CopyMethod::CalculateHashes(FetchResult &Res)
+{
+ // For gzip indexes we need to look inside the gzip for the hash
+ // We can not use the extension here as its not used in partial
+ // on a IMS hit
+ FileFd::OpenMode OpenMode = FileFd::ReadOnly;
+ if (_config->FindB("Acquire::GzipIndexes", false) == true)
+ OpenMode = FileFd::ReadOnlyGzip;
+
+ Hashes Hash;
+ FileFd Fd(Res.Filename, OpenMode);
+ Hash.AddFD(Fd);
+ Res.TakeHashes(Hash);
+}
+
// CopyMethod::Fetch - Fetch a file /*{{{*/
// ---------------------------------------------------------------------
/* */
@@ -52,7 +69,15 @@ bool CopyMethod::Fetch(FetchItem *Itm)
Res.LastModified = Buf.st_mtime;
Res.IMSHit = false;
URIStart(Res);
-
+
+ // when the files are identical, just compute the hashes
+ if(File == Itm->DestFile)
+ {
+ CalculateHashes(Res);
+ URIDone(Res);
+ return true;
+ }
+
// See if the file exists
FileFd From(File,FileFd::ReadOnly);
FileFd To(Itm->DestFile,FileFd::WriteAtomic);
@@ -83,10 +108,7 @@ bool CopyMethod::Fetch(FetchItem *Itm)
return _error->Errno("utime",_("Failed to set modification time"));
}
- Hashes Hash;
- FileFd Fd(Res.Filename, FileFd::ReadOnly);
- Hash.AddFD(Fd);
- Res.TakeHashes(Hash);
+ CalculateHashes(Res);
URIDone(Res);
return true;