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authorMichael Vogt <mvo@debian.org>2015-06-23 12:17:35 +0100
committerMichael Vogt <mvo@debian.org>2015-06-23 12:17:35 +0100
commit245dde96193702f7f51389d3583dee547f8ba366 (patch)
tree6cf8c191641c760bcc6a6c08fb0ff65d27e0cffd /methods/file.cc
parent5530255b5f3ad7de2e23dfcb39ce325001126501 (diff)
parentc8a4ce6cbed57ae108dc955d4a850f9b129a0693 (diff)
Merge remote-tracking branch 'donkult/debian/experimental' into debian/experimental
Diffstat (limited to 'methods/file.cc')
-rw-r--r--methods/file.cc87
1 files changed, 60 insertions, 27 deletions
diff --git a/methods/file.cc b/methods/file.cc
index 12db62203..5c76ec122 100644
--- a/methods/file.cc
+++ b/methods/file.cc
@@ -16,6 +16,7 @@
#include <config.h>
#include <apt-pkg/acquire-method.h>
+#include <apt-pkg/aptconfiguration.h>
#include <apt-pkg/error.h>
#include <apt-pkg/hashes.h>
#include <apt-pkg/fileutl.h>
@@ -33,7 +34,7 @@ class FileMethod : public pkgAcqMethod
public:
- FileMethod() : pkgAcqMethod("1.0",SingleInstance | LocalOnly) {};
+ FileMethod() : pkgAcqMethod("1.0",SingleInstance | SendConfig | LocalOnly) {};
};
// FileMethod::Fetch - Fetch a file /*{{{*/
@@ -47,8 +48,27 @@ bool FileMethod::Fetch(FetchItem *Itm)
if (Get.Host.empty() == false)
return _error->Error(_("Invalid URI, local URIS must not start with //"));
- // See if the file exists
struct stat Buf;
+ // deal with destination files which might linger around
+ if (lstat(Itm->DestFile.c_str(), &Buf) == 0)
+ {
+ if ((Buf.st_mode & S_IFREG) != 0)
+ {
+ if (Itm->LastModified == Buf.st_mtime && Itm->LastModified != 0)
+ {
+ HashStringList const hsl = Itm->ExpectedHashes;
+ if (Itm->ExpectedHashes.VerifyFile(File))
+ {
+ Res.Filename = Itm->DestFile;
+ Res.IMSHit = true;
+ }
+ }
+ }
+ }
+ if (Res.IMSHit != true)
+ unlink(Itm->DestFile.c_str());
+
+ // See if the file exists
if (stat(File.c_str(),&Buf) == 0)
{
Res.Size = Buf.st_size;
@@ -56,37 +76,50 @@ bool FileMethod::Fetch(FetchItem *Itm)
Res.LastModified = Buf.st_mtime;
Res.IMSHit = false;
if (Itm->LastModified == Buf.st_mtime && Itm->LastModified != 0)
- Res.IMSHit = true;
+ {
+ unsigned long long const filesize = Itm->ExpectedHashes.FileSize();
+ if (filesize != 0 && filesize == Res.Size)
+ Res.IMSHit = true;
+ }
+
+ Hashes Hash(Itm->ExpectedHashes);
+ FileFd Fd(File, FileFd::ReadOnly);
+ Hash.AddFD(Fd);
+ Res.TakeHashes(Hash);
}
-
- // See if we can compute a file without a .gz exentsion
- std::string::size_type Pos = File.rfind(".gz");
- if (Pos + 3 == File.length())
+ if (Res.IMSHit == false)
+ URIStart(Res);
+
+ // See if the uncompressed file exists and reuse it
+ FetchResult AltRes;
+ AltRes.Filename.clear();
+ std::vector<std::string> extensions = APT::Configuration::getCompressorExtensions();
+ for (std::vector<std::string>::const_iterator ext = extensions.begin(); ext != extensions.end(); ++ext)
{
- File = std::string(File,0,Pos);
- if (stat(File.c_str(),&Buf) == 0)
+ if (APT::String::Endswith(File, *ext) == true)
{
- FetchResult AltRes;
- AltRes.Size = Buf.st_size;
- AltRes.Filename = File;
- AltRes.LastModified = Buf.st_mtime;
- AltRes.IMSHit = false;
- if (Itm->LastModified == Buf.st_mtime && Itm->LastModified != 0)
- AltRes.IMSHit = true;
-
- URIDone(Res,&AltRes);
- return true;
- }
+ std::string const unfile = File.substr(0, File.length() - ext->length() - 1);
+ if (stat(unfile.c_str(),&Buf) == 0)
+ {
+ AltRes.Size = Buf.st_size;
+ AltRes.Filename = unfile;
+ AltRes.LastModified = Buf.st_mtime;
+ AltRes.IMSHit = false;
+ if (Itm->LastModified == Buf.st_mtime && Itm->LastModified != 0)
+ AltRes.IMSHit = true;
+ break;
+ }
+ // no break here as we could have situations similar to '.gz' vs '.tar.gz' here
+ }
}
-
- if (Res.Filename.empty() == true)
+
+ if (AltRes.Filename.empty() == false)
+ URIDone(Res,&AltRes);
+ else if (Res.Filename.empty() == false)
+ URIDone(Res);
+ else
return _error->Error(_("File not found"));
- Hashes Hash;
- FileFd Fd(Res.Filename, FileFd::ReadOnly);
- Hash.AddFD(Fd);
- Res.TakeHashes(Hash);
- URIDone(Res);
return true;
}
/*}}}*/