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// file : bdep/utility.hxx -*- C++ -*-
// copyright : Copyright (c) 2014-2017 Code Synthesis Ltd
// license : MIT; see accompanying LICENSE file
#ifndef BDEP_UTILITY_HXX
#define BDEP_UTILITY_HXX
#include <memory> // make_shared()
#include <string> // to_string()
#include <utility> // move(), forward(), declval(), make_pair()
#include <cassert> // assert()
#include <iterator> // make_move_iterator()
#include <algorithm> // find(), find_if()
#include <libbutl/ft/lang.hxx>
#include <libbutl/utility.mxx> // casecmp(), reverse_iterate(), etc
#include <libbutl/filesystem.mxx>
#include <bdep/types.hxx>
#include <bdep/version.hxx>
#include <bdep/common-options.hxx>
namespace bdep
{
using std::move;
using std::forward;
using std::declval;
using std::make_pair;
using std::make_shared;
using std::make_move_iterator;
using std::to_string;
using std::find;
using std::find_if;
// <libbutl/utility.mxx>
//
using butl::ucase;
using butl::lcase;
using butl::casecmp;
using butl::trim;
using butl::next_word;
using butl::reverse_iterate;
using butl::exception_guard;
using butl::make_exception_guard;
// <libbutl/filesystem.mxx>
//
using butl::auto_rmfile;
using butl::auto_rmdir;
// Empty string and path.
//
extern const string empty_string;
extern const path empty_path;
extern const dir_path empty_dir_path;
// Widely-used paths.
//
extern const dir_path bdep_dir; // .bdep/
extern const path bdep_file; // .bdep/bdep.sqlite3
extern const path manifest_file; // manifest
extern const path packages_file; // packages.manifest
extern const path repositories_file; // repositories.manifest
extern const path configurations_file; // configurations.manifest
// Process path (argv[0]).
//
extern const char* argv0;
// Directory extracted from argv[0] (i.e., this process' recall directory)
// or empty if there is none. Can be used as a search fallback.
//
extern dir_path exec_dir;
// Filesystem.
//
bool
exists (const path&, bool ignore_error = false);
bool
exists (const dir_path&, bool ignore_error = false);
bool
empty (const dir_path&);
void
mk (const dir_path&);
void
mk_p (const dir_path&);
void
rm (const path&, uint16_t verbosity = 3);
// Run a process.
//
template <typename I, typename O, typename E, typename P, typename... A>
process
start (I&& in, O&& out, E&& err, const P& prog, A&&... args);
template <typename P, typename... A>
void
run (const P& prog, A&&... args);
// Run the bpkg process.
//
const char*
name_bpkg (const common_options&);
template <typename O, typename E, typename... A>
process
start_bpkg (const common_options&, O&& out, E&& err, A&&... args);
template <typename... A>
void
run_bpkg (const common_options&, A&&... args);
// Run the b process.
//
const char*
name_b (const common_options&);
template <typename O, typename E, typename... A>
process
start_b (const common_options&, O&& out, E&& err, A&&... args);
template <typename... A>
void
run_b (const common_options&, A&&... args);
// Manifest parsing and serialization.
//
// For parsing, if path is '-', then read from stdin.
//
template <typename T>
T
parse_manifest (const path&,
const char* what,
bool ignore_unknown = false);
template <typename T>
T
parse_manifest (istream&,
const string& name,
const char* what,
bool ignore_unknown = false);
template <typename T>
void
serialize_manifest (const T&, const path&, const char* what);
template <typename T>
void
serialize_manifest (const T&,
ostream&,
const string& name,
const char* what);
// CLI (sub)command parsing helper.
//
template <typename C>
C
parse_command (cli::scanner& scan, const char* what, const char* help);
template <typename C>
bool
parse_command (cli::scanner& scan, C&);
}
#include <bdep/utility.txx>
#endif // BDEP_UTILITY_HXX
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