Module: Debian::AptPkg::PkgCache

Defined in:
ext/apt_pkg/pkgcache.cpp

Class Method Summary collapse

Class Method Details

.depends_count ⇒ Integer?

The total number of dependencies stored in the cache. Raise ‘Debian::AptPkg::InitError` when config, system, cache is not configured.

Debian::AptPkg::PkgCache.depends_count # => 551983

Returns:

  • (Integer, nil) 


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# File 'ext/apt_pkg/pkgcache.cpp', line 247

static VALUE
depends_count(VALUE self)
{
  if (!config_system_initialized()) {
    rb_raise(e_mDebianAptPkgInitError, "System not initialized");
  }
  pkgCacheFile CacheFile;
  pkgCache *Cache = CacheFile.GetPkgCache();
  if (Cache == NULL) {
    return Qnil;
  }
  return INT2FIX(Cache->HeaderP->DependsCount);
}

.gen_caches ⇒ Boolean

Call the main cache generator. Raise ‘Debian::AptPkg::InitError` when config, system, cache is not configured.

Debian::AptPkg::PkgCache.gen_caches # => false

Returns:

  • (Boolean) 


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# File 'ext/apt_pkg/pkgcache.cpp', line 28

static VALUE
gen_caches(VALUE self)
{
  if (!config_system_initialized()) {
    rb_raise(e_mDebianAptPkgInitError, "System not initialized");
  }
  pkgCacheFile CacheFile;
  int res = CacheFile.BuildCaches(NULL, true);
  return INT2BOOL(res);
}

.group_count ⇒ Integer?

The number of groups in the cache. Raise ‘Debian::AptPkg::InitError` when config, system, cache is not configured.

Debian::AptPkg::PkgCache.group_count # => 16730

Returns:

  • (Integer, nil) 


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# File 'ext/apt_pkg/pkgcache.cpp', line 343

static VALUE
group_count(VALUE self)
{
  if (!config_system_initialized()) {
    rb_raise(e_mDebianAptPkgInitError, "System not initialized");
  }
  pkgCacheFile CacheFile;
  pkgCache *Cache = CacheFile.GetPkgCache();
  if (Cache == NULL) {
    return Qnil;
  }
  return INT2FIX(Cache->HeaderP->GroupCount);
}

.is_multi_arch ⇒ Boolean

An attribute determining whether the cache supports multi-arch. Raise ‘Debian::AptPkg::InitError` when config, system, cache is not configured.

Debian::AptPkg::PkgCache.is_multi_arch # => false

Returns:

  • (Boolean) 


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# File 'ext/apt_pkg/pkgcache.cpp', line 76

static VALUE
is_multi_arch(VALUE self)
{
  if (!config_system_initialized()) {
    rb_raise(e_mDebianAptPkgInitError, "System not initialized");
  }
  pkgCacheFile CacheFile;
  pkgCache *Cache = CacheFile.GetPkgCache();
  if (Cache == NULL) {
    return Qnil;
  }
  int res = Cache->MultiArchCache();
  return INT2BOOL(res);
}

.package_count ⇒ Integer?

The total number of packages available in the cache. Raise ‘Debian::AptPkg::InitError` when config, system, cache is not configured.

Debian::AptPkg::PkgCache.package_count # => 69511

Returns:

  • (Integer, nil) 


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# File 'ext/apt_pkg/pkgcache.cpp', line 199

static VALUE
package_count(VALUE self)
{
  if (!config_system_initialized()) {
    rb_raise(e_mDebianAptPkgInitError, "System not initialized");
  }
  pkgCacheFile CacheFile;
  pkgCache *Cache = CacheFile.GetPkgCache();
  if (Cache == NULL) {
    return Qnil;
  }
  return INT2FIX(Cache->HeaderP->PackageCount);
}

.package_file_count ⇒ Integer?

The total number of packages files available. Raise ‘Debian::AptPkg::InitError` when config, system, cache is not configured.

Debian::AptPkg::PkgCache.package_file_count # => 17

Returns:

  • (Integer, nil) 


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# File 'ext/apt_pkg/pkgcache.cpp', line 271

static VALUE
package_file_count(VALUE self)
{
  if (!config_system_initialized()) {
    rb_raise(e_mDebianAptPkgInitError, "System not initialized");
  }
  pkgCacheFile CacheFile;
  pkgCache *Cache = CacheFile.GetPkgCache();
  if (Cache == NULL) {
    return Qnil;
  }
  return INT2FIX(Cache->HeaderP->PackageFileCount);
}

.packages ⇒ Array?

A list of Debian::AptPkg::Package objects stored in the cache Raise ‘Debian::AptPkg::InitError` when config, system, cache is not configured.

Debian::AptPkg::PkgCache.packages

Returns:

  • (Array, nil) 


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# File 'ext/apt_pkg/pkgcache.cpp', line 101

static VALUE
packages(int argc, VALUE *argv, VALUE self)
{
  if (!config_system_initialized()) {
    rb_raise(e_mDebianAptPkgInitError, "System not initialized");
  }
  VALUE result = rb_ary_new();
  pkgCacheFile CacheFile;
  if (CacheFile.GetPkgCache() == 0) {
    return Qnil;
  }
  for (pkgCache::PkgIterator Pkg = CacheFile.GetPkgCache()->PkgBegin(); not Pkg.end(); ++Pkg) {
    VALUE current_version;
    if (Pkg->CurrentVer == 0) {
      current_version = Qnil;
    } else {
      current_version = rb_struct_new(rb_cVersion,
          rb_str_new2(Pkg.CurrentVer().ParentPkg().Name()),
          rb_str_new2(Pkg.CurrentVer().VerStr()),
          rb_str_new2(Pkg.CurrentVer().Section()),
          rb_str_new2(Pkg.CurrentVer().Arch()),
          INT2FIX(Pkg.CurrentVer()->Size),
          INT2FIX(Pkg.CurrentVer()->InstalledSize),
          INT2FIX(Pkg.CurrentVer()->Hash),
          INT2FIX(Pkg.CurrentVer()->ID),
          INT2FIX(Pkg.CurrentVer()->Priority)
          );
    }
    VALUE rb_cPackage_args[7];
    rb_cPackage_args[0] = INT2FIX(Pkg->ID);
    rb_cPackage_args[1] = rb_str_new2(Pkg.Name());
    rb_cPackage_args[2] = rb_str_new2(Pkg.FullName().c_str());
    rb_cPackage_args[3] = rb_str_new2(Pkg.Arch());
    rb_cPackage_args[4] = INT2BOOL((Pkg->Flags & pkgCache::Flag::Essential) != 0);
    rb_cPackage_args[5] = INT2BOOL((Pkg->Flags & pkgCache::Flag::Important) != 0);
    rb_cPackage_args[6] = current_version;
    rb_ary_push(result, rb_class_new_instance(7,
          rb_cPackage_args,
          rb_cPackage
          ));
  }
  return result;
}

.pkg_names ⇒ Array?

Deprecated and will removed in 0.6.0 List the names of all packages in the system. Raise ‘Debian::AptPkg::InitError` when config, system, cache is not configured.

Debian::AptPkg::PkgCache.pkg_names('gcolor2') # => ["gcolor2"]

Returns:

  • (Array, nil) 


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# File 'ext/apt_pkg/pkgcache.cpp', line 156

static VALUE
pkg_names(int argc, VALUE *argv, VALUE self)
{
  rb_warn("Debian::AptPkg::PkgCache.pkg_names is deprecated; " \
          "use Debian::AptPkg::PkgCache.packages instead");
  if (!config_system_initialized()) {
    rb_raise(e_mDebianAptPkgInitError, "System not initialized");
  }
  if (argc > 1 || argc == 0) {
    rb_raise(rb_eArgError, "You must give at least one search argument");
  }
  VALUE name;
  rb_scan_args(argc, argv, "01", &name);
  if (NIL_P(name) || RSTRING_LEN(name) < 1) {
    rb_raise(rb_eArgError, "You must give at least one search pattern");
  }
  VALUE result = rb_ary_new();

  pkgCacheFile CacheFile;
  if (CacheFile.GetPkgCache() == 0) {
    return Qnil;
  }
  pkgCache::GrpIterator I = CacheFile.GetPkgCache()->GrpBegin();

  const char *pkgname = StringValuePtr(name);
  for (; I.end() != true; ++I) {
    if (strncmp(I.Name(), pkgname, strlen(pkgname)) == 0) {
      rb_ary_push(result, rb_str_new2(I.Name()));
    }
  }
  return result;
}

.provides_count ⇒ Integer?

The number of provided packages. Raise ‘Debian::AptPkg::InitError` when config, system, cache is not configured.

Debian::AptPkg::PkgCache.provides_count # => 69511

Returns:

  • (Integer, nil) 


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# File 'ext/apt_pkg/pkgcache.cpp', line 319

static VALUE
provides_count(VALUE self)
{
  if (!config_system_initialized()) {
    rb_raise(e_mDebianAptPkgInitError, "System not initialized");
  }
  pkgCacheFile CacheFile;
  pkgCache *Cache = CacheFile.GetPkgCache();
  if (Cache == NULL) {
    return Qnil;
  }
  return INT2FIX(Cache->HeaderP->ProvidesCount);
}

.update ⇒ Boolean

Update the index files used by the cache. Raise ‘Debian::AptPkg::InitError` when config, system, cache is not configured.

Debian::AptPkg::PkgCache.update # => false

Returns:

  • (Boolean) 


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# File 'ext/apt_pkg/pkgcache.cpp', line 49

static VALUE
update(VALUE self)
{
  if (!config_system_initialized()) {
    rb_raise(e_mDebianAptPkgInitError, "System not initialized");
  }
  pkgCacheFile CacheFile;
  // Get the source list
  if (CacheFile.BuildSourceList() == false) {
    return Qnil;
  }
  pkgAcquireStatus *Stat(NULL);
  pkgSourceList *List = CacheFile.GetSourceList();
  int res = ListUpdate(*Stat, *List);
  return INT2BOOL(res);
}

.ver_file_count ⇒ Integer?

The total number of version and package file relations stored in the cache. Raise ‘Debian::AptPkg::InitError` when config, system, cache is not configured.

Debian::AptPkg::PkgCache.ver_file_count # => 11274

Returns:

  • (Integer, nil) 


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# File 'ext/apt_pkg/pkgcache.cpp', line 295

static VALUE
ver_file_count(VALUE self)
{
  if (!config_system_initialized()) {
    rb_raise(e_mDebianAptPkgInitError, "System not initialized");
  }
  pkgCacheFile CacheFile;
  pkgCache *Cache = CacheFile.GetPkgCache();
  if (Cache == NULL) {
    return Qnil;
  }
  return INT2FIX(Cache->HeaderP->VerFileCount);
}

.version_count ⇒ Integer?

The total number of package versions available in the cache. Raise ‘Debian::AptPkg::InitError` when config, system, cache is not configured.

Debian::AptPkg::PkgCache.version_count # => 84630

Returns:

  • (Integer, nil) 


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# File 'ext/apt_pkg/pkgcache.cpp', line 223

static VALUE
version_count(VALUE self)
{
  if (!config_system_initialized()) {
    rb_raise(e_mDebianAptPkgInitError, "System not initialized");
  }
  pkgCacheFile CacheFile;
  pkgCache *Cache = CacheFile.GetPkgCache();
  if (Cache == NULL) {
    return Qnil;
  }
  return INT2FIX(Cache->HeaderP->VersionCount);
}