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cleanup the hash iteration. unfortunately there is no 1:1 mapping from Hashes::Suppor...
[apt.git] / methods / copy.cc
1 // -*- mode: cpp; mode: fold -*-
2 // Description /*{{{*/
3 // $Id: copy.cc,v 1.7.2.1 2004/01/16 18:58:50 mdz Exp $
4 /* ######################################################################
5
6 Copy URI - This method takes a uri like a file: uri and copies it
7 to the destination file.
8
9 ##################################################################### */
10 /*}}}*/
11 // Include Files /*{{{*/
12 #include <config.h>
13
14 #include <apt-pkg/fileutl.h>
15 #include <apt-pkg/strutl.h>
16 #include <apt-pkg/acquire-method.h>
17 #include <apt-pkg/error.h>
18 #include <apt-pkg/hashes.h>
19
20 #include <sys/stat.h>
21 #include <utime.h>
22 #include <unistd.h>
23 #include <apti18n.h>
24 /*}}}*/
25
26 class CopyMethod : public pkgAcqMethod
27 {
28 virtual bool Fetch(FetchItem *Itm);
29
30 public:
31
32 CopyMethod() : pkgAcqMethod("1.0",SingleInstance) {};
33 };
34
35 // CopyMethod::Fetch - Fetch a file /*{{{*/
36 // ---------------------------------------------------------------------
37 /* */
38 bool CopyMethod::Fetch(FetchItem *Itm)
39 {
40 URI Get = Itm->Uri;
41 std::string File = Get.Path;
42
43 // Stat the file and send a start message
44 struct stat Buf;
45 if (stat(File.c_str(),&Buf) != 0)
46 return _error->Errno("stat",_("Failed to stat"));
47
48 // Forumulate a result and send a start message
49 FetchResult Res;
50 Res.Size = Buf.st_size;
51 Res.Filename = Itm->DestFile;
52 Res.LastModified = Buf.st_mtime;
53 Res.IMSHit = false;
54 URIStart(Res);
55
56 // See if the file exists
57 FileFd From(File,FileFd::ReadOnly);
58 FileFd To(Itm->DestFile,FileFd::WriteAtomic);
59 To.EraseOnFailure();
60 if (_error->PendingError() == true)
61 {
62 To.OpFail();
63 return false;
64 }
65
66 // Copy the file
67 if (CopyFile(From,To) == false)
68 {
69 To.OpFail();
70 return false;
71 }
72
73 From.Close();
74 To.Close();
75
76 // Transfer the modification times
77 struct utimbuf TimeBuf;
78 TimeBuf.actime = Buf.st_atime;
79 TimeBuf.modtime = Buf.st_mtime;
80 if (utime(Itm->DestFile.c_str(),&TimeBuf) != 0)
81 {
82 To.OpFail();
83 return _error->Errno("utime",_("Failed to set modification time"));
84 }
85
86 Hashes Hash;
87 FileFd Fd(Res.Filename, FileFd::ReadOnly);
88 Hash.AddFD(Fd);
89 Res.TakeHashes(Hash);
90
91 URIDone(Res);
92 return true;
93 }
94 /*}}}*/
95
96 int main()
97 {
98 setlocale(LC_ALL, "");
99
100 CopyMethod Mth;
101 return Mth.Run();
102 }