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// file : build/config/operation.cxx -*- C++ -*-
// copyright : Copyright (c) 2014-2015 Code Synthesis Tools CC
// license : MIT; see accompanying LICENSE file
#include <build/config/operation>
#include <fstream>
#include <build/scope>
#include <build/context>
#include <build/filesystem>
#include <build/diagnostics>
using namespace std;
namespace build
{
namespace config
{
static const path build_dir ("build");
static const path bootstrap_dir ("build/bootstrap");
static const path config_file ("build/config.build");
static const path src_root_file ("build/bootstrap/src-root.build");
// configure
//
static operation_id
configure_operation_pre (operation_id o)
{
// Don't translate default to update. In our case unspecified
// means configure everything.
//
return o;
}
static void
save_src_root (const path& out_root, const path& src_root)
{
path f (out_root / src_root_file);
if (verb >= 1)
text << "config::save_src_root " << f.string ();
else
text << "save " << f;
try
{
ofstream ofs (f.string ());
if (!ofs.is_open ())
fail << "unable to open " << f;
ofs.exceptions (ofstream::failbit | ofstream::badbit);
//@@ TODO: quote path
//
ofs << "# Created automatically by the config module." << endl
<< "#" << endl
<< "src_root = " << src_root.string () << '/' << endl;
}
catch (const ios_base::failure&)
{
fail << "failed to write to " << f;
}
}
static void
configure_execute (action a, const action_targets& ts)
{
tracer trace ("configure_execute");
for (void* v: ts)
{
target& t (*static_cast<target*> (v));
scope& s (scopes.find (t.dir));
const path& out_root (s["out_root"].as<const path&> ());
const path& src_root (s["src_root"].as<const path&> ());
// Make sure the directories exist.
//
if (out_root != src_root)
{
mkdir (out_root);
mkdir (out_root / build_dir);
}
mkdir (out_root / bootstrap_dir);
// We distinguish between a complete configure and operation-
// specific.
//
if (a.operation () == default_id)
{
level4 ([&]{trace << "completely configuring " << out_root;});
// Save src-root.build unless out_root is the same as src.
//
if (out_root != src_root)
save_src_root (out_root, src_root);
}
else
{
}
}
}
meta_operation_info configure {
"configure",
nullptr, // meta-operation pre
&configure_operation_pre,
&load, // normal load
&match, // normal match
&configure_execute,
nullptr, // operation post
nullptr // meta-operation post
};
// disfigure
//
static operation_id
disfigure_operation_pre (operation_id o)
{
// Don't translate default to update. In our case unspecified
// means disfigure everything.
//
return o;
}
static void
disfigure_load (const path& bf,
scope&,
const path&,
const path&,
const location&)
{
tracer trace ("disfigure_load");
level5 ([&]{trace << "skipping " << bf;});
}
static void
disfigure_match (action a,
scope& root,
const target_key& tk,
const location& l,
action_targets& ts)
{
tracer trace ("disfigure_match");
level5 ([&]{trace << "collecting " << root.path ();});
ts.push_back (&root);
}
static void
disfigure_execute (action a, const action_targets& ts)
{
tracer trace ("disfigure_execute");
for (void* v: ts)
{
scope& root (*static_cast<scope*> (v));
const path& out_root (root.path ());
const path& src_root (root.src_path ());
// We distinguish between a complete disfigure and operation-
// specific.
//
if (a.operation () == default_id)
{
level4 ([&]{trace << "completely disfiguring " << out_root;});
rmfile (out_root / config_file);
rmfile (out_root / src_root_file);
// Clean up the directories.
//
rmdir (out_root / bootstrap_dir);
if (out_root != src_root)
{
rmdir (out_root / build_dir);
if (rmdir (out_root) == rmdir_status::not_empty)
warn << "directory " << out_root.string () << " is "
<< (out_root == work
? "current working directory"
: "not empty") << ", not removing";
}
}
else
{
}
}
}
static void
disfigure_meta_operation_post ()
{
tracer trace ("disfigure_meta_operation_post");
// Reset the dependency state since anything that could have been
// loaded earlier using a previous configuration is now invalid.
//
level5 ([&]{trace << "resetting dependency state";});
reset ();
}
meta_operation_info disfigure {
"disfigure",
nullptr, // meta-operation pre
&disfigure_operation_pre,
&disfigure_load,
&disfigure_match,
&disfigure_execute,
nullptr, // operation post
&disfigure_meta_operation_post
};
}
}
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