libzypp  13.10.6
DiskUsage.cc
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12 #include "zypp/DiskUsage.h"
13 #include <iostream>
14 
15 using namespace std;
16 
18 namespace zypp
19 {
20  std::ostream & operator<<( std::ostream & str, const DiskUsage::Entry & obj )
21  {
22  return str << obj.path << '\t' << obj._size << "; files " << obj._files;
23  }
24 
25  DiskUsage::Entry DiskUsage::extract( const std::string & dirname_r )
26  {
27  Entry ret( dirname_r );
28 
29  iterator fst = begin();
30  for ( ; fst != end() && !fst->isBelow( ret ); ++fst )
31  ; // seek 1st equal or below
32 
33  bool found = false;
34  if ( fst != end() ) {
35  iterator lst = fst;
36  found = true;
37  // return the first found, the value is sum of all subdirectories below
38  ret += *lst;
39  for ( ; lst != end() && lst->isBelow( ret ); ++lst ) {
40  }
41  // remove
42  _dirs.erase( fst, lst );
43  }
44 
45  // the dir entry has been found, update all parent entries
46  if (found)
47  {
48  std::string dname = dirname_r;
49  if (dname.size() > 1 && dname[0] != '/')
50  {
51  dname.insert(dname.begin(), '/');
52  }
53 
54  Entry tmp( dname );
55 
56  tmp._size = ret._size;
57  tmp._files = ret._files;
58  // subtract du from directories above
59  iterator fst = begin();
60  for ( ; fst != end(); ++fst )
61  {
62  // add slash if it's missing
63  std::string dd = fst->path;
64  if (dd.size() > 1 && dd[0] != '/')
65  {
66  dd.insert(dd.begin(), '/');
67  }
68 
69  // update the entry
70  if (tmp.isBelow(dd))
71  {
72  *fst -= tmp;
73  }
74  }
75  }
76 
77  return ret;
78  }
79 
80  std::ostream & operator<<( std::ostream & str, const DiskUsage & obj )
81  {
82  str << "Package Disk Usage {" << endl;
83  for ( DiskUsage::EntrySet::const_iterator it = obj._dirs.begin(); it != obj._dirs.end(); ++it ) {
84  str << " " << *it << endl;
85  }
86  return str << "}";
87  }
88 
89 
90 } // namespace zypp
EntrySet::iterator iterator
Definition: DiskUsage.h:129
bool isBelow(const Entry &rhs) const
Return true if this entry denotes a directory equal to or below rhs._dirname.
Definition: DiskUsage.h:60
Holds data about how much space will be needed per directory.
Definition: DiskUsage.h:27
std::ostream & operator<<(std::ostream &str, const ::_Dataiterator *obj)
Definition: LookupAttr.cc:799
EntrySet _dirs
Definition: DiskUsage.h:90
std::string path
Definition: DiskUsage.h:41