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// file : bbot/machine-manifest.cxx -*- C++ -*-
// copyright : Copyright (c) 2014-2017 Code Synthesis Ltd
// license : TBC; see accompanying LICENSE file
#include <bbot/machine-manifest>
#include <butl/manifest-parser>
#include <butl/manifest-serializer>
using namespace butl;
namespace bbot
{
using parser = manifest_parser;
using parsing = manifest_parsing;
using serializer = manifest_serializer;
using serialization = manifest_serialization;
using name_value = manifest_name_value;
// machine_type
//
string
to_string (machine_type t)
{
switch (t)
{
case machine_type::kvm: return "kvm";
case machine_type::nspawn: return "nspawn";
}
assert (false);
return string ();
}
machine_type
to_machine_type (const string& t)
{
if (t == "kvm") return machine_type::kvm;
else if (t == "nspawn") return machine_type::nspawn;
else throw invalid_argument ("invalid machine type '" + t + "'");
}
// machine_manifest
//
machine_manifest::
machine_manifest (parser& p, bool iu)
: machine_manifest (p, p.next (), iu)
{
// Make sure this is the end.
//
name_value nv (p.next ());
if (!nv.empty ())
throw parsing (p.name (), nv.name_line, nv.name_column,
"single machine manifest expected");
}
machine_manifest::
machine_manifest (parser& p, name_value nv, bool iu)
{
auto bad_name = [&p, &nv] (const string& d)
{
throw parsing (p.name (), nv.name_line, nv.name_column, d);
};
auto bad_value = [&p, &nv] (const string& d)
{
throw parsing (p.name (), nv.value_line, nv.value_column, d);
};
// Make sure this is the start and we support the version.
//
if (!nv.name.empty ())
bad_name ("start of machine manifest expected");
if (nv.value != "1")
bad_value ("unsupported format version");
optional<machine_type> type;
for (nv = p.next (); !nv.empty (); nv = p.next ())
{
string& n (nv.name);
string& v (nv.value);
if (n == "id")
{
if (!id.empty ())
bad_name ("machine id redefinition");
if (v.empty ())
bad_value ("empty machine id");
id = move (v);
}
else if (n == "name")
{
if (!name.empty ())
bad_name ("machine name redefinition");
if (v.empty ())
bad_value ("empty machine name");
name = move (v);
}
else if (n == "summary")
{
if (!summary.empty ())
bad_name ("machine summary redefinition");
if (v.empty ())
bad_value ("empty machine summary");
summary = move (v);
}
else if (n == "type")
{
if (type)
bad_name ("machine type redefinition");
try
{
type = to_machine_type (v);
}
catch (const invalid_argument&)
{
bad_value ("invalid machine type");
}
}
else if (n == "mac")
{
if (mac)
bad_name ("machine mac redefinition");
mac = move (v);
}
else if (!iu)
bad_name ("unknown name '" + n + "' in machine manifest");
}
// Verify all non-optional values were specified.
//
if (id.empty ())
bad_value ("no machine id specified");
if (name.empty ())
bad_value ("no machine name specified");
if (summary.empty ())
bad_value ("no machine summary specified");
if (!type)
bad_value ("no machine type specified");
this->type = *type;
}
void machine_manifest::
serialize (serializer& s) const
{
// @@ Should we check that all non-optional values are specified and all
// values are valid?
//
s.next ("", "1"); // Start of manifest.
s.next ("id", id);
s.next ("name", name);
s.next ("summary", summary);
s.next ("type", to_string (type));
if (mac)
s.next ("mac", *mac);
s.next ("", ""); // End of manifest.
}
}
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