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// file : build/context.cxx -*- C++ -*-
// copyright : Copyright (c) 2014-2015 Code Synthesis Ltd
// license : MIT; see accompanying LICENSE file
#include <build/context>
#include <ostream>
#include <sstream>
#include <cassert>
#include <system_error>
#include <build/scope>
#include <build/target>
#include <build/rule>
#include <build/diagnostics>
using namespace std;
using namespace butl;
namespace build
{
dir_path work;
dir_path home;
string_pool path_pool;
string_pool extension_pool;
string_pool project_name_pool;
const meta_operation_info* current_mif;
const operation_info* current_inner_oif;
const operation_info* current_outer_oif;
execution_mode current_mode;
uint64_t dependency_count;
void
reset ()
{
path_pool.clear ();
extension_pool.clear ();
project_name_pool.clear ();
targets.clear ();
scopes.clear ();
var_pool.clear ();
// Reset meta/operation tables. Note that the order should match
// the id constants in <build/operation>.
//
meta_operation_table.clear ();
meta_operation_table.insert ("perform");
meta_operation_table.insert ("configure");
meta_operation_table.insert ("disfigure");
meta_operation_table.insert ("dist");
operation_table.clear ();
operation_table.insert ("default");
operation_table.insert ("update");
operation_table.insert ("clean");
operation_table.insert ("test");
operation_table.insert ("install");
// Enter builtin variables.
//
{
auto& v (var_pool);
v.find ("work", dir_path_type);
v.find ("home", dir_path_type);
v.find ("src_root", dir_path_type);
v.find ("out_root", dir_path_type);
v.find ("src_base", dir_path_type);
v.find ("out_base", dir_path_type);
v.find ("project", string_type);
v.find ("amalgamation", dir_path_type);
// Shouldn't be typed since the value requires pre-processing.
//
v.find ("subprojects", nullptr, '=');
v.find ("extension", string_type);
}
// Create global scope. For Win32 this is not a "real" root path.
// On POSIX, however, this is a real path. See the comment in
// <build/path-map> for details.
//
global_scope = scopes.insert (
dir_path ("/"), nullptr, true, false)->second;
global_scope->assign ("work") = work;
global_scope->assign ("home") = home;
// Register builtin target types.
//
{
target_type_map& t (global_scope->target_types);
t.insert<file> ();
t.insert<alias> ();
t.insert<dir> ();
t.insert<fsdir> ();
t.insert<doc> ();
t.insert<man> ();
t.insert<man1> ();
}
// Register builtin rules.
//
{
rule_map& r (global_scope->rules);
r.insert<alias> (perform_id, 0, "alias", alias_rule::instance);
r.insert<fsdir> (perform_update_id, "fsdir", fsdir_rule::instance);
r.insert<fsdir> (perform_clean_id, "fsdir", fsdir_rule::instance);
r.insert<file> (perform_update_id, "file", file_rule::instance);
r.insert<file> (perform_clean_id, "file", file_rule::instance);
}
}
fs_status<mkdir_status>
mkdir (const dir_path& d)
{
// We don't want to print the command if the directory already
// exists. This makes the below code a bit ugly.
//
mkdir_status ms;
try
{
ms = try_mkdir (d);
}
catch (const system_error& e)
{
if (verb)
text << "mkdir " << d;
fail << "unable to create directory " << d << ": " << e.what ();
}
if (ms == mkdir_status::success)
{
if (verb)
text << "mkdir " << d;
}
return ms;
}
fs_status<mkdir_status>
mkdir_p (const dir_path& d)
{
// We don't want to print the command if the directory already
// exists. This makes the below code a bit ugly.
//
mkdir_status ms;
try
{
ms = try_mkdir_p (d);
}
catch (const system_error& e)
{
if (verb)
text << "mkdir -p " << d;
fail << "unable to create directory " << d << ": " << e.what ();
}
if (ms == mkdir_status::success)
{
if (verb)
text << "mkdir -p " << d;
}
return ms;
}
fs_status<butl::rmdir_status>
rmdir_r (const dir_path& d)
{
using namespace butl;
if (work.sub (d)) // Don't try to remove working directory.
return rmdir_status::not_empty;
if (!dir_exists (d))
return rmdir_status::not_exist;
if (verb)
text << "rmdir -r " << d;
try
{
butl::rmdir_r (d);
}
catch (const std::system_error& e)
{
fail << "unable to remove directory " << d << ": " << e.what ();
}
return rmdir_status::success;
}
dir_path
src_out (const dir_path& out, scope& s)
{
scope& rs (*s.root_scope ());
return src_out (out, rs.out_path (), rs.src_path ());
}
dir_path
out_src (const dir_path& src, scope& s)
{
scope& rs (*s.root_scope ());
return out_src (src, rs.out_path (), rs.src_path ());
}
dir_path
src_out (const dir_path& o,
const dir_path& out_root, const dir_path& src_root)
{
assert (o.sub (out_root));
return src_root / o.leaf (out_root);
}
dir_path
out_src (const dir_path& s,
const dir_path& out_root, const dir_path& src_root)
{
assert (s.sub (src_root));
return out_root / s.leaf (src_root);
}
// relative()
//
const dir_path* relative_base = &work;
string
diag_relative (const path& p)
{
const path& b (*relative_base);
if (p.absolute ())
{
if (p == b)
return ".";
#ifndef _WIN32
if (p == home)
return "~";
#endif
path rb (relative (p));
#ifndef _WIN32
if (rb.relative ())
{
// See if the original path with the ~/ shortcut is better
// that the relative to base.
//
if (p.sub (home))
{
path rh (p.leaf (home));
if (rb.string ().size () > rh.string ().size () + 2) // 2 for '~/'
return "~/" + rh.string ();
}
}
else if (rb.sub (home))
return "~/" + rb.leaf (home).string ();
#endif
return rb.string ();
}
return p.string ();
}
string
diag_relative (const dir_path& d, bool cur)
{
string r (diag_relative (static_cast<const path&> (d)));
// Translate "." to empty.
//
if (!cur && d.absolute () && r == ".")
r.clear ();
// Add trailing '/'.
//
if (!r.empty () && !dir_path::traits::is_separator (r.back ()))
r += '/';
return r;
}
// diag_do(), etc.
//
string
diag_do (const action&, const target& t)
{
const meta_operation_info& m (*current_mif);
const operation_info& io (*current_inner_oif);
const operation_info* oo (current_outer_oif);
ostringstream os;
// perform(update(x)) -> "update x"
// configure(update(x)) -> "configure updating x"
//
if (m.name_do.empty ())
os << io.name_do << ' ';
else
{
os << m.name_do << ' ';
if (!io.name_doing.empty ())
os << io.name_doing << ' ';
}
if (oo != nullptr)
os << "(for " << oo->name << ") ";
os << t;
return os.str ();
}
string
diag_doing (const action&, const target& t)
{
const meta_operation_info& m (*current_mif);
const operation_info& io (*current_inner_oif);
const operation_info* oo (current_outer_oif);
ostringstream os;
// perform(update(x)) -> "updating x"
// configure(update(x)) -> "configuring updating x"
//
if (!m.name_doing.empty ())
os << m.name_doing << ' ';
if (!io.name_doing.empty ())
os << io.name_doing << ' ';
if (oo != nullptr)
os << "(for " << oo->name << ") ";
os << t;
return os.str ();
}
string
diag_done (const action&, const target& t)
{
const meta_operation_info& m (*current_mif);
const operation_info& io (*current_inner_oif);
const operation_info* oo (current_outer_oif);
ostringstream os;
// perform(update(x)) -> "x is up to date"
// configure(update(x)) -> "updating x is configured"
//
if (m.name_done.empty ())
{
os << t;
if (!io.name_done.empty ())
os << " " << io.name_done;
if (oo != nullptr)
os << "(for " << oo->name << ") ";
}
else
{
if (!io.name_doing.empty ())
os << io.name_doing << ' ';
if (oo != nullptr)
os << "(for " << oo->name << ") ";
os << t << " " << m.name_done;
}
return os.str ();
}
}
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