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// file : bpkg/fetch.cxx -*- C++ -*-
// copyright : Copyright (c) 2014-2015 Code Synthesis Ltd
// license : MIT; see accompanying LICENSE file
#include <bpkg/fetch>
#include <fstream>
#include <butl/process>
#include <butl/fdstream>
#include <butl/filesystem>
#include <bpkg/manifest-parser>
#include <bpkg/diagnostics>
using namespace std;
using namespace butl;
namespace bpkg
{
template <typename M>
static M
fetch_file (const path& f)
{
if (!exists (f))
fail << "file " << f << " does not exist";
try
{
ifstream ifs;
ifs.exceptions (ofstream::badbit | ofstream::failbit);
ifs.open (f.string ());
manifest_parser mp (ifs, f.string ());
return M (mp);
}
catch (const manifest_parsing& e)
{
error (e.name, e.line, e.column) << e.description;
}
catch (const ifstream::failure&)
{
error << "unable to read from " << f;
}
throw failed ();
}
static const path repositories ("repositories");
repository_manifests
fetch_repositories (const dir_path& d)
{
return fetch_file<repository_manifests> (d / repositories);
}
repository_manifests
fetch_repositories (const repository_location& rl)
{
assert (/*rl.remote () ||*/ rl.absolute ());
return rl.remote ()
? repository_manifests ()
: fetch_file<repository_manifests> (rl.path () / repositories);
}
static const path packages ("packages");
package_manifests
fetch_packages (const dir_path& d)
{
return fetch_file<package_manifests> (d / packages);
}
package_manifests
fetch_packages (const repository_location& rl)
{
assert (/*rl.remote () ||*/ rl.absolute ());
return rl.remote ()
? package_manifests ()
: fetch_file<package_manifests> (rl.path () / packages);
}
}
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