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8a9d765739
Make sure that Package can be initialized several time.s Make sure that Package is not used before being initialized. git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@35080 a592a061-630c-0410-9148-cb99ea01b6c8
711 lines
20 KiB
C++
711 lines
20 KiB
C++
// -*- C++ -*-
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/**
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* \file package.cpp
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author Angus Leeming
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*
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* Full author contact details are available in file CREDITS.
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*/
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#include <config.h>
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#include "support/Package.h"
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#include "support/debug.h"
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#include "support/environment.h"
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#include "support/ExceptionMessage.h"
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#include "support/filetools.h"
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#include "support/gettext.h"
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#include "support/lassert.h"
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#include "support/lstrings.h"
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#include "support/os.h"
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#if defined (USE_WINDOWS_PACKAGING)
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# include "support/os_win32.h"
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#endif
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#include <list>
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#if !defined (USE_WINDOWS_PACKAGING) && \
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!defined (USE_MACOSX_PACKAGING) && \
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!defined (USE_POSIX_PACKAGING)
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#error USE_FOO_PACKAGING must be defined for FOO = WINDOWS, MACOSX or POSIX.
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#endif
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#if defined (USE_MACOSX_PACKAGING)
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# include <CoreServices/CoreServices.h> // FSFindFolder, FSRefMakePath
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#endif
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using namespace std;
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namespace lyx {
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namespace support {
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namespace {
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Package package_;
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bool initialised_ = false;
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} // namespace anon
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void init_package(string const & command_line_arg0,
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string const & command_line_system_support_dir,
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string const & command_line_user_support_dir,
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exe_build_dir_to_top_build_dir top_build_dir_location)
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{
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package_ = Package(command_line_arg0,
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command_line_system_support_dir,
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command_line_user_support_dir,
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top_build_dir_location);
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initialised_ = true;
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}
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Package const & package()
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{
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LASSERT(initialised_, /**/);
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return package_;
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}
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namespace {
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FileName const abs_path_from_binary_name(string const & exe);
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void buildDirs(FileName const & abs_binary,
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exe_build_dir_to_top_build_dir top_build_dir_location,
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FileName &, FileName &);
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FileName const get_document_dir(FileName const & home_dir);
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FileName const get_home_dir();
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FileName const get_locale_dir(FileName const & system_support_dir);
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FileName const get_system_support_dir(FileName const & abs_binary,
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string const & command_line_system_support_dir);
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FileName const get_default_user_support_dir(FileName const & home_dir);
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bool userSupportDir(FileName const & default_user_support_dir,
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string const & command_line_user_support_dir, FileName & result);
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string const & with_version_suffix();
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} // namespace anon
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Package::Package(string const & command_line_arg0,
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string const & command_line_system_support_dir,
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string const & command_line_user_support_dir,
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exe_build_dir_to_top_build_dir top_build_dir_location)
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: explicit_user_support_dir_(false)
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{
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home_dir_ = get_home_dir();
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// Specification of temp_dir_ may be reset by LyXRC,
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// but the default is fixed for a given OS.
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system_temp_dir_ = FileName::tempPath();
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temp_dir_ = system_temp_dir_;
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document_dir_ = get_document_dir(home_dir_);
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FileName const abs_binary = abs_path_from_binary_name(command_line_arg0);
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binary_dir_ = FileName(onlyPath(abs_binary.absFileName()));
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// Is LyX being run in-place from the build tree?
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buildDirs(abs_binary, top_build_dir_location,
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build_support_dir_, system_support_dir_);
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if (build_support_dir_.empty())
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system_support_dir_ =
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get_system_support_dir(abs_binary,
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command_line_system_support_dir);
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locale_dir_ = get_locale_dir(system_support_dir_);
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FileName const default_user_support_dir =
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get_default_user_support_dir(home_dir_);
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explicit_user_support_dir_ = userSupportDir(default_user_support_dir,
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command_line_user_support_dir, user_support_dir_);
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FileName const configure_script(addName(system_support().absFileName(), "configure.py"));
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configure_command_ = os::python() + ' ' +
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quoteName(configure_script.toFilesystemEncoding(), quote_python) +
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with_version_suffix();
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LYXERR(Debug::INIT, "<package>\n"
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<< "\tbinary_dir " << binary_dir().absFileName() << '\n'
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<< "\tsystem_support " << system_support().absFileName() << '\n'
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<< "\tbuild_support " << build_support().absFileName() << '\n'
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<< "\tuser_support " << user_support().absFileName() << '\n'
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<< "\tlocale_dir " << locale_dir().absFileName() << '\n'
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<< "\tdocument_dir " << document_dir().absFileName() << '\n'
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<< "\ttemp_dir " << temp_dir().absFileName() << '\n'
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<< "\thome_dir " << home_dir().absFileName() << '\n'
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<< "</package>\n");
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}
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void Package::set_temp_dir(FileName const & temp_dir) const
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{
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if (temp_dir.empty())
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temp_dir_ = system_temp_dir_;
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else
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temp_dir_ = temp_dir;
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}
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namespace {
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// These next functions contain the stuff that is substituted at
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// configuration-time.
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FileName const hardcoded_localedir()
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{
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// FIXME UNICODE
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// The build system needs to make sure that this is in utf8 encoding.
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return FileName(LYX_ABS_INSTALLED_LOCALEDIR);
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}
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FileName const hardcoded_system_support_dir()
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{
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// FIXME UNICODE
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// The build system needs to make sure that this is in utf8 encoding.
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return FileName(LYX_ABS_INSTALLED_DATADIR);
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}
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string const & with_version_suffix()
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{
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static string const program_suffix = PROGRAM_SUFFIX;
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static string const with_version_suffix =
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" --with-version-suffix=" PROGRAM_SUFFIX;
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return program_suffix.empty() ? program_suffix : with_version_suffix;
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}
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} // namespace anon
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FileName const & Package::top_srcdir()
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{
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// FIXME UNICODE
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// The build system needs to make sure that this is in utf8 encoding.
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static FileName const dir(LYX_ABS_TOP_SRCDIR);
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return dir;
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}
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namespace {
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bool check_command_line_dir(string const & dir,
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string const & file,
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string const & command_line_switch);
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FileName const extract_env_var_dir(string const & env_var);
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bool check_env_var_dir(FileName const & dir,
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string const & env_var);
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bool check_env_var_dir(FileName const & dir,
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string const & file,
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string const & env_var);
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string const relative_locale_dir();
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string const relative_system_support_dir();
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/**
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* Convert \p name to internal path and strip a trailing slash, since it
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* comes from user input (commandline or environment).
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* \p name is encoded in utf8.
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*/
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string const fix_dir_name(string const & name)
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{
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return rtrim(os::internal_path(name), "/");
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}
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FileName buildSupportDir(string const & binary_dir,
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exe_build_dir_to_top_build_dir top_build_dir_location)
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{
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string indirection;
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switch (top_build_dir_location) {
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case top_build_dir_is_one_level_up:
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indirection = "../lib";
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break;
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case top_build_dir_is_two_levels_up:
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indirection = "../../lib";
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break;
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}
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return FileName(addPath(binary_dir, indirection));
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}
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void buildDirs(FileName const & abs_binary,
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exe_build_dir_to_top_build_dir top_build_dir_location,
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FileName & build_support_dir, FileName & system_support_dir)
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{
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string const check_text = "Checking whether LyX is run in place...";
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// We're looking for "Makefile" in a directory
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// binary_dir/../lib
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// We're also looking for "chkconfig.ltx" in a directory
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// top_srcdir()/lib
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// If both are found, then we're running LyX in-place.
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// Note that the name of the lyx binary may be a symbolic link.
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// If that is the case, then we follow the links too.
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FileName binary = abs_binary;
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while (true) {
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// Try and find "lyxrc.defaults".
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string binary_dir = onlyPath(binary.absFileName());
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build_support_dir = buildSupportDir(binary_dir, top_build_dir_location);
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if (!fileSearch(build_support_dir.absFileName(), "Makefile").empty()) {
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// Try and find "chkconfig.ltx".
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system_support_dir =
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FileName(addPath(Package::top_srcdir().absFileName(), "lib"));
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if (!fileSearch(system_support_dir.absFileName(), "chkconfig.ltx").empty()) {
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LYXERR(Debug::INIT, check_text << " yes");
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return;
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}
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}
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// Check whether binary is a symbolic link.
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// If so, resolve it and repeat the exercise.
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if (!binary.isSymLink())
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break;
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FileName link;
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if (readLink(binary, link)) {
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binary = link;
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} else {
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// Unable to resolve the link.
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break;
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}
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}
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LYXERR(Debug::INIT, check_text << " no");
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system_support_dir = FileName();
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build_support_dir = FileName();
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}
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// Specification of document_dir_ may be reset by LyXRC,
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// but the default is fixed for a given OS.
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FileName const get_document_dir(FileName const & home_dir)
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{
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#if defined (USE_WINDOWS_PACKAGING)
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(void)home_dir; // Silence warning about unused variable.
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os::GetFolderPath win32_folder_path;
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return FileName(win32_folder_path(os::GetFolderPath::PERSONAL));
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#else // Posix-like.
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return home_dir;
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#endif
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}
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// The specification of home_dir_ is fixed for a given OS.
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// A typical example on Windows: "C:/Documents and Settings/USERNAME"
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// and on a Posix-like machine: "/home/USERNAME".
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FileName const get_home_dir()
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{
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#if defined (USE_WINDOWS_PACKAGING)
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string const home_dir = getEnv("USERPROFILE");
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#else // Posix-like.
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string const home_dir = getEnv("HOME");
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#endif
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return FileName(fix_dir_name(home_dir));
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}
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// Several sources are probed to ascertain the locale directory.
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// The only requirement is that the result is indeed a directory.
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FileName const get_locale_dir(FileName const & system_support_dir)
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{
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// 1. Use the "LYX_LOCALEDIR" environment variable.
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FileName const path_env = extract_env_var_dir("LYX_LOCALEDIR");
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if (!path_env.empty() && check_env_var_dir(path_env, "LYX_LOCALEDIR"))
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return path_env;
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// 2. Search for system_support_dir / <relative locale dir>
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// The <relative locale dir> is OS-dependent. (On Unix, it will
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// be "../locale/".)
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FileName path(addPath(system_support_dir.absFileName(),
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relative_locale_dir()));
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if (path.exists() && path.isDirectory())
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return path;
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// 3. Fall back to the hard-coded LOCALEDIR.
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path = hardcoded_localedir();
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if (path.exists() && path.isDirectory())
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return path;
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return FileName();
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}
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// Extracts the absolute path from the foo of "-sysdir foo" or "-userdir foo"
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FileName const abs_path_from_command_line(string const & command_line)
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{
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if (command_line.empty())
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return FileName();
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string const str_path = fix_dir_name(command_line);
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return makeAbsPath(str_path);
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}
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// Does the grunt work for abs_path_from_binary_name()
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FileName const get_binary_path(string const & exe)
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{
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#if defined (USE_WINDOWS_PACKAGING)
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// The executable may have been invoked either with or
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// without the .exe extension.
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// Ensure that it is present.
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string const as_internal_path = os::internal_path(exe);
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string const exe_path = suffixIs(as_internal_path, ".exe") ?
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as_internal_path : as_internal_path + ".exe";
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#else
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string const exe_path = os::internal_path(exe);
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#endif
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if (FileName::isAbsolute(exe_path))
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return FileName(exe_path);
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// Two possibilities present themselves.
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// 1. The binary is relative to the CWD.
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FileName const abs_exe_path = makeAbsPath(exe_path);
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if (abs_exe_path.exists())
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return abs_exe_path;
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// 2. exe must be the name of the binary only and it
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// can be found on the PATH.
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string const exe_name = onlyFileName(exe_path);
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if (exe_name != exe_path)
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return FileName();
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vector<string> const path = getEnvPath("PATH");
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vector<string>::const_iterator it = path.begin();
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vector<string>::const_iterator const end = path.end();
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for (; it != end; ++it) {
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// This will do nothing if *it is already absolute.
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string const exe_dir = makeAbsPath(*it).absFileName();
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FileName const exe_path(addName(exe_dir, exe_name));
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if (exe_path.exists())
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return exe_path;
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}
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// Didn't find anything.
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return FileName();
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}
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// Extracts the absolute path to the binary name received as argv[0].
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FileName const abs_path_from_binary_name(string const & exe)
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{
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FileName const abs_binary = get_binary_path(exe);
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if (abs_binary.empty()) {
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// FIXME UNICODE
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throw ExceptionMessage(ErrorException,
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_("LyX binary not found"),
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bformat(_("Unable to determine the path to the LyX binary from the command line %1$s"),
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from_utf8(exe)));
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}
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return abs_binary;
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}
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// A plethora of directories is searched to ascertain the system
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// lyxdir which is defined as the first directory to contain
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// "chkconfig.ltx".
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FileName const
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get_system_support_dir(FileName const & abs_binary,
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string const & command_line_system_support_dir)
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{
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string const chkconfig_ltx = "chkconfig.ltx";
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// searched_dirs is used for diagnostic purposes only in the case
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// that "chkconfig.ltx" is not found.
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list<FileName> searched_dirs;
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// 1. Use the -sysdir command line parameter.
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FileName path = abs_path_from_command_line(command_line_system_support_dir);
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if (!path.empty()) {
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searched_dirs.push_back(path);
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if (check_command_line_dir(path.absFileName(), chkconfig_ltx, "-sysdir"))
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return path;
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}
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// 2. Use the "LYX_DIR_${major}${minor}x" environment variable.
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path = extract_env_var_dir(LYX_DIR_VER);
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if (!path.empty()) {
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searched_dirs.push_back(path);
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if (check_env_var_dir(path, chkconfig_ltx, LYX_DIR_VER))
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return path;
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}
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// 3. Search relative to the lyx binary.
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// We're looking for "chkconfig.ltx" in a directory
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// OnlyPath(abs_binary) / <relative dir> / PACKAGE /
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// PACKAGE is hardcoded in config.h. Eg "lyx" or "lyx-1.3.6cvs".
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// <relative dir> is OS-dependent; on Unix, it will be "../share/".
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string const relative_lyxdir = relative_system_support_dir();
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// One subtlety to be aware of. The name of the lyx binary may be
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// a symbolic link. If that is the case, then we follow the links too.
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FileName binary = abs_binary;
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while (true) {
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// Try and find "chkconfig.ltx".
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string const binary_dir = onlyPath(binary.absFileName());
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FileName const lyxdir(addPath(binary_dir, relative_lyxdir));
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searched_dirs.push_back(lyxdir);
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if (!fileSearch(lyxdir.absFileName(), chkconfig_ltx).empty()) {
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// Success! "chkconfig.ltx" has been found.
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return lyxdir;
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}
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// Check whether binary is a symbolic link.
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// If so, resolve it and repeat the exercise.
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if (!binary.isSymLink())
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break;
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FileName link;
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if (readLink(binary, link)) {
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binary = link;
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} else {
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// Unable to resolve the link.
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break;
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}
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}
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// 4. Repeat the exercise on the directory itself.
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FileName binary_dir(onlyPath(abs_binary.absFileName()));
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while (true) {
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// This time test whether the directory is a symbolic link
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// *before* looking for "chkconfig.ltx".
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// (We've looked relative to the original already.)
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if (!binary.isSymLink())
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break;
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FileName link;
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if (readLink(binary_dir, link)) {
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binary_dir = link;
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} else {
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// Unable to resolve the link.
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break;
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}
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// Try and find "chkconfig.ltx".
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FileName const lyxdir(addPath(binary_dir.absFileName(),
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relative_lyxdir));
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searched_dirs.push_back(lyxdir);
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if (!fileSearch(lyxdir.absFileName(), chkconfig_ltx).empty()) {
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// Success! "chkconfig.ltx" has been found.
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return lyxdir;
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}
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}
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// 5. In desparation, try the hard-coded system support dir.
|
|
path = hardcoded_system_support_dir();
|
|
if (!fileSearch(path.absFileName(), chkconfig_ltx).empty())
|
|
return path;
|
|
|
|
// Everything has failed :-(
|
|
// So inform the user and exit.
|
|
string searched_dirs_str;
|
|
typedef list<FileName>::const_iterator iterator;
|
|
iterator const begin = searched_dirs.begin();
|
|
iterator const end = searched_dirs.end();
|
|
for (iterator it = begin; it != end; ++it) {
|
|
if (it != begin)
|
|
searched_dirs_str += "\n\t";
|
|
searched_dirs_str += it->absFileName();
|
|
}
|
|
|
|
// FIXME UNICODE
|
|
throw ExceptionMessage(ErrorException, _("No system directory"),
|
|
bformat(_("Unable to determine the system directory "
|
|
"having searched\n"
|
|
"\t%1$s\n"
|
|
"Use the '-sysdir' command line parameter or "
|
|
"set the environment variable\n%2$s "
|
|
"to the LyX system directory containing the "
|
|
"file `chkconfig.ltx'."),
|
|
from_utf8(searched_dirs_str), from_ascii(LYX_DIR_VER)));
|
|
|
|
// Keep the compiler happy.
|
|
return FileName();
|
|
}
|
|
|
|
|
|
// Returns the absolute path to the user lyxdir, together with a flag
|
|
// indicating whether this directory was specified explicitly (as -userdir
|
|
// or through an environment variable) or whether it was deduced.
|
|
bool userSupportDir(FileName const & default_user_support_dir,
|
|
string const & command_line_user_support_dir, FileName & result)
|
|
{
|
|
// 1. Use the -userdir command line parameter.
|
|
result = abs_path_from_command_line(command_line_user_support_dir);
|
|
if (!result.empty())
|
|
return true;
|
|
|
|
// 2. Use the LYX_USERDIR_${major}${minor}x environment variable.
|
|
result = extract_env_var_dir(LYX_USERDIR_VER);
|
|
if (!result.empty())
|
|
return true;
|
|
|
|
// 3. Use the OS-dependent default_user_support_dir
|
|
result = default_user_support_dir;
|
|
return false;
|
|
}
|
|
|
|
|
|
// $HOME/.lyx on POSIX but on Win32 it will be something like
|
|
// "C:/Documents and Settings/USERNAME/Application Data/LyX"
|
|
FileName const get_default_user_support_dir(FileName const & home_dir)
|
|
{
|
|
#if defined (USE_WINDOWS_PACKAGING)
|
|
(void)home_dir; // Silence warning about unused variable.
|
|
|
|
os::GetFolderPath win32_folder_path;
|
|
return FileName(addPath(win32_folder_path(os::GetFolderPath::APPDATA), PACKAGE));
|
|
|
|
#elif defined (USE_MACOSX_PACKAGING)
|
|
(void)home_dir; // Silence warning about unused variable.
|
|
|
|
FSRef fsref;
|
|
OSErr const error_code =
|
|
FSFindFolder(kUserDomain, kApplicationSupportFolderType,
|
|
kDontCreateFolder, &fsref);
|
|
if (error_code != 0)
|
|
return FileName();
|
|
|
|
// FSRefMakePath returns the result in utf8
|
|
char store[PATH_MAX + 1];
|
|
OSStatus const status_code =
|
|
FSRefMakePath(&fsref,
|
|
reinterpret_cast<UInt8*>(store), PATH_MAX);
|
|
if (status_code != 0)
|
|
return FileName();
|
|
|
|
return FileName(addPath(reinterpret_cast<char const *>(store), PACKAGE));
|
|
|
|
#else // USE_POSIX_PACKAGING
|
|
return FileName(addPath(home_dir.absFileName(), string(".") + PACKAGE));
|
|
#endif
|
|
}
|
|
|
|
|
|
// Check that directory @c dir contains @c file.
|
|
// Else emit an error message about an invalid @c command_line_switch.
|
|
bool check_command_line_dir(string const & dir,
|
|
string const & file,
|
|
string const & command_line_switch)
|
|
{
|
|
FileName const abs_path = fileSearch(dir, file);
|
|
if (abs_path.empty()) {
|
|
// FIXME UNICODE
|
|
throw ExceptionMessage(ErrorException, _("File not found"), bformat(
|
|
_("Invalid %1$s switch.\nDirectory %2$s does not contain %3$s."),
|
|
from_utf8(command_line_switch), from_utf8(dir),
|
|
from_utf8(file)));
|
|
}
|
|
|
|
return !abs_path.empty();
|
|
}
|
|
|
|
|
|
// The environment variable @c env_var expands to a (single) file path.
|
|
FileName const extract_env_var_dir(string const & env_var)
|
|
{
|
|
string const dir = fix_dir_name(getEnv(env_var));
|
|
return dir.empty() ? FileName() : makeAbsPath(dir);
|
|
}
|
|
|
|
|
|
// Check that directory @c dir contains @c file.
|
|
// Else emit a warning about an invalid @c env_var.
|
|
bool check_env_var_dir(FileName const & dir,
|
|
string const & file,
|
|
string const & env_var)
|
|
{
|
|
FileName const abs_path = fileSearch(dir.absFileName(), file);
|
|
if (abs_path.empty()) {
|
|
// FIXME UNICODE
|
|
throw ExceptionMessage(WarningException, _("File not found"), bformat(
|
|
_("Invalid %1$s environment variable.\n"
|
|
"Directory %2$s does not contain %3$s."),
|
|
from_utf8(env_var), from_utf8(dir.absFileName()),
|
|
from_utf8(file)));
|
|
}
|
|
|
|
return !abs_path.empty();
|
|
}
|
|
|
|
|
|
// Check that directory @c dir is indeed a directory.
|
|
// Else emit a warning about an invalid @c env_var.
|
|
bool check_env_var_dir(FileName const & dir,
|
|
string const & env_var)
|
|
{
|
|
bool const success = dir.exists() && dir.isDirectory();
|
|
|
|
if (!success) {
|
|
// Put this string on a single line so that the gettext
|
|
// search mechanism in po/Makefile.in.in will register
|
|
// Package.cpp.in as a file containing strings that need
|
|
// translation.
|
|
// FIXME UNICODE
|
|
docstring const fmt =
|
|
_("Invalid %1$s environment variable.\n%2$s is not a directory.");
|
|
|
|
throw ExceptionMessage(WarningException, _("Directory not found"), bformat(
|
|
fmt, from_utf8(env_var), from_utf8(dir.absFileName())));
|
|
}
|
|
|
|
return success;
|
|
}
|
|
|
|
|
|
// The locale directory relative to the LyX system directory.
|
|
string const relative_locale_dir()
|
|
{
|
|
#if defined (USE_WINDOWS_PACKAGING) || defined (USE_MACOSX_PACKAGING)
|
|
return "locale/";
|
|
#else
|
|
return "../locale/";
|
|
#endif
|
|
}
|
|
|
|
|
|
// The system lyxdir is relative to the directory containing the LyX binary.
|
|
string const relative_system_support_dir()
|
|
{
|
|
string result;
|
|
|
|
#if defined (USE_WINDOWS_PACKAGING) || defined (USE_MACOSX_PACKAGING)
|
|
result = "../Resources/";
|
|
#else // Posix-like.
|
|
result = addPath("../share/", PACKAGE);
|
|
#endif
|
|
|
|
return result;
|
|
}
|
|
|
|
} // namespace anon
|
|
|
|
} // namespace support
|
|
} // namespace lyx
|