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// file : bpkg/system-package-manager.cxx -*- C++ -*-
// license : MIT; see accompanying LICENSE file
#include <bpkg/system-package-manager.hxx>
#include <libbutl/semantic-version.hxx>
#include <bpkg/package.hxx>
#include <bpkg/package-odb.hxx>
#include <bpkg/database.hxx>
#include <bpkg/diagnostics.hxx>
#include <bpkg/system-package-manager-debian.hxx>
using namespace std;
using namespace butl;
namespace bpkg
{
system_package_manager::
~system_package_manager ()
{
// vtable
}
unique_ptr<system_package_manager>
make_system_package_manager (const target_triplet& host,
const string& name)
{
unique_ptr<system_package_manager> r;
if (optional<os_release> osr = host_os_release (host))
{
if (host.class_ == "linux")
{
if (osr->name_id == "debian" ||
osr->name_id == "ubuntu" ||
find_if (osr->like_ids.begin (), osr->like_ids.end (),
[] (const string& n)
{
return n == "debian" || n == "ubuntu";
}) != osr->like_ids.end ())
{
// @@ TODO: verify name if specified.
// @@ TMP
//
//r.reset (new system_package_manager_debian (move (*osr)));
}
}
}
if (r == nullptr)
{
if (!name.empty ())
fail << "unsupported package manager '" << name << "' for host "
<< host;
}
return r;
}
strings system_package_manager::
system_package_names (const available_packages& aps,
const string& name_id,
const string& version_id,
const string& like_id)
{
assert (!aps.empty ());
// Parse the version id if it is not empty and leave it "0" otherwise.
//
semantic_version vid;
if (!version_id.empty ())
try
{
vid = semantic_version (version_id, semantic_version::allow_omit_minor);
}
catch (const invalid_argument& e)
{
fail << "invalid version '" << version_id << "' for " << name_id
<< " operating system: " << e;
}
// Return those <name>[_<version>]-name distribution values of the
// specified available packages whose <name> component matches the
// specified distribution name and the <version> component (assumed as "0"
// if not present) is less or equal the specified distribution version.
// Suppress duplicate entries with the same name (so that distribution
// values of the later available package versions are preferred) or value.
//
using values = vector<reference_wrapper<const distribution_name_value>>;
auto name_values = [&aps] (const string& n, const semantic_version& v)
{
values r;
for (const auto& a: aps)
{
const shared_ptr<available_package>& ap (a.first);
for (const distribution_name_value& nv: ap->distribution_values)
{
if (optional<string> d = nv.distribution ("-name"))
{
string dn (move (*d)); // <name>[_<version>]
size_t p (dn.rfind ('_')); // Version-separating underscore.
// If '_' separator is present, then make sure that the right-hand
// part looks like a version (not empty and only contains digits
// and dots).
//
if (p != string::npos)
{
if (p != dn.size () - 1)
{
for (size_t i (p); i != dn.size (); ++i)
{
if (!digit (dn[i]) && dn[i] != '.')
{
p = string::npos;
break;
}
}
}
else
p = string::npos;
}
// Parse the distribution version if present and leave it "0"
// otherwise.
//
semantic_version dv;
if (p != string::npos)
try
{
dv = semantic_version (dn,
p + 1,
semantic_version::allow_omit_minor);
}
catch (const invalid_argument& e)
{
fail << "invalid distribution version in value " << nv.name
<< " for package " << ap->id.name << ' ' << ap->version
<< a.second.database () << " in repository "
<< a.second.load ()->location << ": " << e;
}
dn.resize (p);
if (dn == n &&
dv <= v &&
find_if (r.begin (), r.end (),
[&nv] (const distribution_name_value& v)
{return v.name == nv.name || v.value == nv.value;}) ==
r.end ())
{
r.push_back (nv);
}
}
}
}
return r;
};
// Collect the <distribution>-name values that match the name id and refer
// to the version which is less or equal than the version id.
//
values vs (name_values (name_id, vid));
// If the resulting list is empty and the like id is specified, then
// re-collect but now using the like id and "0" version id instead.
//
if (vs.empty () && !like_id.empty ())
vs = name_values (like_id, semantic_version (0, 0, 0));
// Return the values of the collected name/values list.
//
strings r;
r.reserve (vs.size ());
transform (vs.begin (), vs.end (),
back_inserter (r),
[] (const distribution_name_value& v) {return v.value;});
return r;
}
}
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