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// cmdline_search.cc
//
// Copyright 2004 Daniel Burrows
#include "cmdline_search.h"
#include "cmdline_common.h"
#include <aptitude.h>
#include <load_sortpolicy.h>
#include <pkg_columnizer.h>
#include <pkg_item.h>
#include <pkg_sortpolicy.h>
#include <generic/apt/apt.h>
#include <generic/apt/matchers.h>
#include <cwidget/config/column_definition.h>
#include <cwidget/generic/util/transcode.h>
#include <apt-pkg/error.h>
#include <apt-pkg/strutl.h>
#include <algorithm>
using namespace std;
namespace cw = cwidget;
using cwidget::util::transcode;
using namespace aptitude::matching;
using namespace cwidget::config;
class search_result_parameters : public column_parameters
{
pkg_match_result *r;
public:
search_result_parameters(pkg_match_result *_r)
:r(_r)
{
}
~search_result_parameters()
{
delete r;
}
int param_count()
{
return r->num_groups();
}
wstring get_param(int n)
{
return cw::util::transcode(r->group(n));
}
};
// compare...uses the candidate version of each package.
class compare
{
pkg_sortpolicy *s;
public:
compare(pkg_sortpolicy *_s):s(_s) {}
bool operator()(const pair<pkgCache::PkgIterator, pkg_match_result *> &a,
const pair<pkgCache::PkgIterator, pkg_match_result *> &b)
{
pkgCache::VerIterator av=(*apt_cache_file)[a.first].CandidateVerIter(*apt_cache_file);
pkgCache::VerIterator bv=(*apt_cache_file)[b.first].CandidateVerIter(*apt_cache_file);
return s->compare(a.first, av, b.first, bv)<0;
}
};
/** \brief operator== for match results. */
class result_equality
{
pkg_sortpolicy *s;
public:
result_equality(pkg_sortpolicy *_s):s(_s) {}
bool operator()(const pair<pkgCache::PkgIterator, pkg_match_result *> &a,
const pair<pkgCache::PkgIterator, pkg_match_result *> &b)
{
pkgCache::VerIterator av =
(*apt_cache_file)[a.first].CandidateVerIter(*apt_cache_file);
pkgCache::VerIterator bv =
(*apt_cache_file)[b.first].CandidateVerIter(*apt_cache_file);
return s->compare(a.first, av, b.first, bv) == 0;
}
};
// FIXME: apt-cache does lots of tricks to make this fast. Should I?
int cmdline_search(int argc, char *argv[], const char *status_fname,
string display_format, string width, string sort,
bool disable_columns)
{
int real_width=-1;
pkg_item::pkg_columnizer::setup_columns();
pkg_sortpolicy *s=parse_sortpolicy(sort);
if(!s)
{
_error->DumpErrors();
return -1;
}
_error->DumpErrors();
if(!width.empty())
{
unsigned long tmp=screen_width;
StrToNum(width.c_str(), tmp, width.size());
real_width=tmp;
}
wstring wdisplay_format;
if(!cw::util::transcode(display_format.c_str(), wdisplay_format))
{
_error->DumpErrors();
fprintf(stderr, _("iconv of %s failed.\n"), display_format.c_str());
return -1;
}
column_definition_list *columns =
parse_columns(wdisplay_format,
pkg_item::pkg_columnizer::parse_column_type,
pkg_item::pkg_columnizer::defaults);
if(!columns)
{
_error->DumpErrors();
return -1;
}
if(argc<=1)
{
fprintf(stderr, _("search: You must provide at least one search term\n"));
delete columns;
return -1;
}
OpProgress progress;
apt_init(&progress, true, status_fname);
if(_error->PendingError())
{
_error->DumpErrors();
delete columns;
return -1;
}
vector<pkg_matcher *> matchers;
for(int i=1; i<argc; ++i)
{
pkg_matcher *m=parse_pattern(argv[i]);
if(!m)
{
while(!matchers.empty())
{
delete matchers.back();
matchers.pop_back();
}
_error->DumpErrors();
delete columns;
return -1;
}
matchers.push_back(m);
}
vector<pair<pkgCache::PkgIterator, pkg_match_result *> > output;
for(pkgCache::PkgIterator pkg=(*apt_cache_file)->PkgBegin();
!pkg.end(); ++pkg)
{
// Ignore packages that exist only due to dependencies.
if(pkg.VersionList().end() && pkg.ProvidesList().end())
continue;
for(vector<pkg_matcher *>::iterator m=matchers.begin();
m!=matchers.end(); ++m)
{
pkg_match_result *r = get_match(*m, pkg,
*apt_cache_file,
*apt_package_records);
if(r != NULL)
output.push_back(pair<pkgCache::PkgIterator, pkg_match_result *>(pkg, r));
}
}
std::sort(output.begin(), output.end(), compare(s));
output.erase(std::unique(output.begin(), output.end(), result_equality(s)),
output.end());
for(vector<pair<pkgCache::PkgIterator, pkg_match_result *> >::iterator i=output.begin();
i!=output.end(); ++i)
{
column_parameters *p =
new search_result_parameters(i->second);
pkg_item::pkg_columnizer columnizer(i->first,
i->first.VersionList(),
*columns,
0);
if(disable_columns)
{
// Instantiate the format string without clipping or
// expanding columns.
//
// TODO: this should move into cwidget in the future, as a new
// mode of operation for layout_columns().
std::wstring output;
for(column_definition_list::iterator it = columns->begin();
it != columns->end();
++it)
{
if(it->type == column_definition::COLUMN_LITERAL)
output += it->arg;
else
{
eassert(it->type == column_definition::COLUMN_GENERATED ||
it->type == column_definition::COLUMN_PARAM);
if(it->type == column_definition::COLUMN_GENERATED)
{
cwidget::column_disposition disp = columnizer.setup_column(it->ival);
output += disp.text;
}
else
{
if(p->param_count() <= it->ival)
output += L"###";
else
output += p->get_param(it->ival);
}
}
}
printf("%ls\n", output.c_str());
}
else
printf("%ls\n",
columnizer.layout_columns(real_width==-1?screen_width:real_width,
*p).c_str());
// Note that this deletes the whole result, so we can't re-use
// the list.
delete p;
}
delete columns;
return 0;
}
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