blob: 1a8e8262f70f866d0e397b8c4b5c194d0cb70da3 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
/* ######################################################################
Provide access methods to various configuration settings,
setup defaults and returns validate settings.
##################################################################### */
/*}}}*/
// Include Files /*{{{*/
#include <apt-pkg/fileutl.h>
#include <apt-pkg/aptconfiguration.h>
#include <apt-pkg/configuration.h>
#include <vector>
#include <string>
/*}}}*/
namespace APT {
// getCompressionTypes - Return Vector of usbale compressiontypes /*{{{*/
// ---------------------------------------------------------------------
/* return a vector of compression types in the prefered order. */
std::vector<std::string>
const Configuration::getCompressionTypes(bool const &Cached) {
static std::vector<std::string> types;
if (types.empty() == false) {
if (Cached == true)
return types;
else
types.clear();
}
// Set default application paths to check for optional compression types
_config->CndSet("Dir::Bin::lzma", "/usr/bin/lzma");
_config->CndSet("Dir::Bin::bzip2", "/bin/bzip2");
::Configuration::Item const *Opts = _config->Tree("Acquire::CompressionTypes");
if (Opts != 0)
Opts = Opts->Child;
// at first, move over the options to setup at least the default options
bool foundLzma=false, foundBzip2=false, foundGzip=false;
for (; Opts != 0; Opts = Opts->Next) {
if (Opts->Value == "lzma")
foundLzma = true;
else if (Opts->Value == "bz2")
foundBzip2 = true;
else if (Opts->Value == "gz")
foundGzip = true;
}
// setup the defaults now
if (!foundBzip2)
_config->Set("Acquire::CompressionTypes::bz2","bzip2");
if (!foundLzma)
_config->Set("Acquire::CompressionTypes::lzma","lzma");
if (!foundGzip)
_config->Set("Acquire::CompressionTypes::gz","gzip");
// move again over the option tree to finially calculate our result
::Configuration::Item const *Types = _config->Tree("Acquire::CompressionTypes");
if (Types != 0)
Types = Types->Child;
for (; Types != 0; Types = Types->Next) {
string const appsetting = string("Dir::Bin::").append(Types->Value);
// ignore compression types we have no app ready to use
if (appsetting.empty() == false && _config->Exists(appsetting) == true) {
std::string const app = _config->FindFile(appsetting.c_str(), "");
if (app.empty() == false && FileExists(app) == false)
continue;
}
types.push_back(Types->Tag);
}
return types;
}
/*}}}*/
}
|
