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// file : build/cli/module.cxx -*- C++ -*-
// copyright : Copyright (c) 2014-2015 Code Synthesis Ltd
// license : MIT; see accompanying LICENSE file
#include <build/cli/module>
#include <butl/process>
#include <butl/fdstream>
#include <build/scope>
#include <build/target>
#include <build/variable>
#include <build/diagnostics>
#include <build/cxx/target>
#include <build/cxx/module>
#include <build/config/utility>
#include <build/cli/target>
#include <build/cli/rule>
using namespace std;
using namespace butl;
namespace build
{
namespace cli
{
static compile compile_;
void
init (scope& root, scope& base, const location& l)
{
//@@ TODO: avoid multiple inits (generally, for modules).
//
tracer trace ("cli::init");
//@@ Should it be this way?
//
if (&root != &base)
fail (l) << "cli module must be initialized in project root scope";
// Initialize the cxx module. We need its targets types (?xx{}).
//
cxx::init (root, base, l);
const dir_path& out_root (root.path ());
level4 ([&]{trace << "for " << out_root;});
// Register our target types.
//
target_types.insert (cli::static_type);
target_types.insert (cli_cxx::static_type);
// Register our rules.
//
rules[default_id][typeid (cli_cxx)].emplace ("cli.compile", compile_);
rules[update_id][typeid (cli_cxx)].emplace ("cli.compile", compile_);
rules[clean_id][typeid (cli_cxx)].emplace ("cli.compile", compile_);
rules[default_id][typeid (cxx::cxx)].emplace ("cli.compile", compile_);
rules[update_id][typeid (cxx::cxx)].emplace ("cli.compile", compile_);
rules[clean_id][typeid (cxx::cxx)].emplace ("cli.compile", compile_);
rules[default_id][typeid (cxx::hxx)].emplace ("cli.compile", compile_);
rules[update_id][typeid (cxx::hxx)].emplace ("cli.compile", compile_);
rules[clean_id][typeid (cxx::hxx)].emplace ("cli.compile", compile_);
rules[default_id][typeid (cxx::ixx)].emplace ("cli.compile", compile_);
rules[update_id][typeid (cxx::ixx)].emplace ("cli.compile", compile_);
rules[clean_id][typeid (cxx::ixx)].emplace ("cli.compile", compile_);
// Configure.
//
// config.cli
//
{
auto r (config::required (root, "config.cli", "cli"));
// If we actually set a new value, test it by trying to execute.
//
if (r.second)
{
const string& cli (r.first);
const char* args[] = {cli.c_str (), "--version", nullptr};
if (verb)
print_process (args);
else
text << "test " << cli;
string ver;
try
{
process pr (args, false, false, true);
ifdstream is (pr.in_ofd);
for (bool first (true); !is.eof (); )
{
string l;
getline (is, l);
if (first)
{
// The version is the last word on the first line.
//
auto p (l.rfind (' '));
if (p != string::npos)
ver = string (l, p + 1);
first = false;
}
}
if (!pr.wait ())
throw failed ();
if (ver.empty ())
fail << "unexpected output from " << cli;
}
catch (const process_error& e)
{
error << "unable to execute " << cli << ": " << e.what ();
if (e.child ())
exit (1);
throw failed ();
}
if (verb)
text << cli << " " << ver;
}
}
// config.cli.options
//
// This one is optional. We also merge it into the corresponding
// cli.* variables.
//
if (auto* v = config::optional<list_value> (root, "config.cli.options"))
root.append ("cli.options") += *v;
}
}
}
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