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017bd21202
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@10201 a592a061-630c-0410-9148-cb99ea01b6c8
411 lines
10 KiB
C
411 lines
10 KiB
C
/*
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* \file lyx_configure.C
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* This file is part of LyX, the document processor.
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* http://www.lyx.org/
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* Licence details can be found in the file COPYING or copy at
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* http://www.lyx.org/about/license.php3
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* \author Angus Leeming
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* Full author contact details are available in file CREDITS or copy at
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* http://www.lyx.org/about/credits.php
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*
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* Define four functions that can be called from the NSIS installer:
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*
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* set_path_prefix [ configure_file, path_prefix ]
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* create_bat_files [ bin_dir, lang ]
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* run_configure [ configure_file, path_prefix ]
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* set_env [ var_name, var_value ]
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*
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* The quantities in [ ... ] are the variables that the functions exxpect
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* to find on the stack. They push "-1" onto the stack on failure and "0"
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* onto the stack on success.
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*
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* Compile the code with
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*
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* g++ -I/c/Program\ Files/NSIS/Contrib -Wall -shared \
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* lyx_configure.C -o lyx_configure.dll
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*
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* Move resulting .dll to /c/Program\ Files/NSIS/Plugins
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*/
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#include <cstdio>
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#include <cstdlib>
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#include <fstream>
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#include <iostream>
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#include <list>
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#include <sstream>
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#include <string>
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#include <windows.h>
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#include "ExDLL/exdll.h"
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namespace {
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std::string const subst(std::string const & a,
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std::string const & oldstr,
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std::string const & newstr)
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{
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std::string lstr = a;
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std::string::size_type i = 0;
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std::string::size_type const olen = oldstr.length();
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while ((i = lstr.find(oldstr, i)) != std::string::npos) {
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lstr.replace(i, olen, newstr);
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i += newstr.length();
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}
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return lstr;
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}
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std::string const basename(std::string const & path)
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{
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std::string::size_type const final_slash = path.find_last_of('\\');
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return (final_slash == std::string::npos) ?
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path :
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path.substr(final_slash+1);
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}
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std::string const dirname(std::string const & path)
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{
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std::string::size_type const final_slash = path.find_last_of('\\');
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return (final_slash == std::string::npos) ?
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std::string() :
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path.substr(0, final_slash);
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}
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std::string const pop_from_stack()
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{
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char data[10*MAX_PATH];
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popstring(data);
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return data;
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}
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void push_to_stack(int data)
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{
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std::ostringstream os;
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os << data;
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pushstring(os.str().c_str());
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}
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std::list<std::string> const tokenize(std::string data,
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char const separator)
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{
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std::list<std::string> result;
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while (true) {
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std::string::size_type const end = data.find(separator);
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if (end == std::string::npos) {
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result.push_back(data);
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break;
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}
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result.push_back(data.substr(0, end));
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data = data.substr(end+1);
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}
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return result;
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}
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void remove_duplicates(std::list<std::string> & data)
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{
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typedef std::list<std::string>::iterator iterator;
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for (iterator it = data.begin(); it != data.end(); ++it) {
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iterator next = it;
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++next;
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if (next == data.end())
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break;
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iterator end = std::remove(next, data.end(), *it);
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data.erase(end, data.end());
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}
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}
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std::string concatenate(std::list<std::string> const & data,
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char const separator)
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{
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typedef std::list<std::string>::const_iterator iterator;
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iterator it = data.begin();
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iterator const end = data.end();
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if (it == end)
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return std::string();
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std::ostringstream result;
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result << *it;
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++it;
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for (; it != end; ++it) {
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result << separator << *it;
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}
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return result.str();
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}
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std::string const sanitize_path(std::string const & in)
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{
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// Replace multiple, adjacent directory separators.
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std::string out = subst(in, "\\\\", "\\");
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std::list<std::string> out_list = tokenize(out, ';');
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remove_duplicates(out_list);
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return concatenate(out_list, ';');
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}
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bool replace_path_prefix(std::string & data,
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std::string::size_type prefix_pos,
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std::string const & path_prefix)
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{
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std::string::size_type start_prefix =
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data.find_first_of('"', prefix_pos);
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if (start_prefix == std::string::npos)
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return false;
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start_prefix += 1;
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std::string::size_type end_line =
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data.find_first_of('\n', prefix_pos);
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if (end_line == std::string::npos)
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return false;
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std::string::size_type end_prefix =
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data.find_last_of('"', end_line);
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if (end_prefix == std::string::npos || end_prefix == start_prefix)
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return false;
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std::string::size_type const count = end_prefix - start_prefix;
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std::string const old_prefix = data.substr(start_prefix, count);
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std::string const prefix =
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subst(sanitize_path(path_prefix + ';' + old_prefix), "\\", "\\\\");
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data.erase(start_prefix, count);
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data.insert(start_prefix, prefix);
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return true;
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}
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bool insert_path_prefix(std::string & data,
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std::string::size_type xfonts_pos,
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std::string const & path_prefix)
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{
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std::string::size_type const xfonts_start =
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data.find_last_of('\n', xfonts_pos);
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if (xfonts_start == std::string::npos)
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return false;
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std::string const prefix = subst(sanitize_path(path_prefix), "\\", "\\\\");
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std::ostringstream ss;
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ss << data.substr(0, xfonts_start)
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<< "\n"
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"cat >>$outfile <<EOF\n"
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"\n"
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"\\\\path_prefix \"" << prefix << "\"\n"
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"EOF\n"
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<< data.substr(xfonts_start);
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data = ss.str();
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return true;
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}
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// Inserts code into "configure" to output "path_prefix" to lyxrc.defaults.
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// \returns 0 on success, -1 on failure
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int set_path_prefix(std::string const & configure_file,
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std::string const & path_prefix)
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{
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std::ifstream ifs(configure_file.c_str());
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if (!ifs)
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return -1;
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std::istreambuf_iterator<char> const begin_ifs(ifs);
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std::istreambuf_iterator<char> const end_ifs;
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std::string configure_data(begin_ifs, end_ifs);
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ifs.close();
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// Does configure already contain a "path_prefix" entry
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// or should we insert one?
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std::string::size_type const prefix_pos =
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configure_data.find("path_prefix");
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if (prefix_pos != std::string::npos) {
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if (!replace_path_prefix(configure_data, prefix_pos, path_prefix))
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return -1;
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} else {
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std::string::size_type const xfonts_pos =
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configure_data.find("X FONTS");
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if (xfonts_pos == std::string::npos)
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return -1;
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if (!insert_path_prefix(configure_data, xfonts_pos, path_prefix))
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return -1;
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}
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std::ofstream ofs(configure_file.c_str());
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if (!ofs)
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return -1;
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ofs << configure_data;
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return 0;
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}
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bool write_bat(std::ostream & os, std::string const & quoted_exe)
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{
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os << "if \"%~1\" == \"~1\" goto win95\n"
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<< quoted_exe << " %*\n"
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<< "goto end\n"
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<< ":win95\n"
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<< quoted_exe << " %1 %2 %3 %4 %5 %6 %7 %8 %9\n"
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<< ":end\n";
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return os;
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}
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// Creates the files lyx.bat and reLyX.bat in the LyX\bin folder.
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// \returns 0 on success, -1 on failure
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int create_bat_files(std::string const & bin_dir, std::string const & lang)
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{
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std::string const lyx_bat_file = bin_dir + "\\lyx.bat";
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std::ofstream lyx_bat(lyx_bat_file.c_str());
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if (!lyx_bat)
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return -1;
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lyx_bat << "@echo off\n"
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<< "if \"%LANG%\"==\"\" SET LANG=" << lang << "\n";
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std::string const lyx_exe_file = bin_dir + "\\lyx.exe";
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if (!write_bat(lyx_bat, "start \"LyX\" \"" + lyx_exe_file + "\""))
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return -1;
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std::string const relyx_bat_file = bin_dir + "\\reLyX.bat";
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std::ofstream relyx_bat(relyx_bat_file.c_str());
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if (!relyx_bat)
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return -1;
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std::string relyx_file = bin_dir + "\\reLyX";
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std::string relyx = "perl.exe \"" + relyx_file + "\"";
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if (!write_bat(relyx_bat, "perl.exe \"" + relyx_file + "\""))
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return -1;
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return 0;
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}
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// Runs "sh configure" to generate things like lyxrc.defaults.
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// \returns 0 on success, -1 on failure
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int run_configure(std::string const & abs_configure_file,
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std::string const & path_prefix)
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{
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std::string const configure_dir = dirname(abs_configure_file);
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std::string const configure_file = basename(abs_configure_file);
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if (configure_dir.empty())
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return -1;
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if (SetCurrentDirectory(configure_dir.c_str()) == 0)
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return -1;
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char path_orig[10*MAX_PATH];
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if (GetEnvironmentVariable("PATH", path_orig, 10*MAX_PATH) == 0)
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return -1;
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std::string const path = path_prefix + ';' + path_orig;
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if (SetEnvironmentVariable("PATH", path.c_str()) == 0)
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return -1;
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// Even "start /WAIT /B sh.exe configure" returns
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// before the script is done, so just invoke "sh" directly.
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std::string const command = std::string("sh.exe ") + configure_file;
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if (system(command.c_str()) != 0)
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return -1;
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return 0;
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}
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} // namespace anon
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//===========================================//
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// //
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// Below is the public interface to the .dll //
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// //
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//===========================================//
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BOOL WINAPI DllMain(HANDLE hInst,
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ULONG ul_reason_for_call,
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LPVOID lpReserved)
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{
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return TRUE;
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}
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// Inserts code into "configure" to output "path_prefix" to lyxrc.defaults.
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extern "C"
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void __declspec(dllexport) set_path_prefix(HWND hwndParent,
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int string_size,
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char * variables,
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stack_t ** stacktop)
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{
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EXDLL_INIT();
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std::string const configure_file = pop_from_stack();
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std::string const path_prefix = pop_from_stack();
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int const result = set_path_prefix(configure_file, path_prefix);
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push_to_stack(result);
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}
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// Creates the files lyx.bat and reLyX.bat in the LyX\bin folder.
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extern "C"
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void __declspec(dllexport) create_bat_files(HWND hwndParent,
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int string_size,
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char * variables,
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stack_t ** stacktop)
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{
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EXDLL_INIT();
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std::string const bin_dir = pop_from_stack();
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std::string const lang = pop_from_stack();
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int const result = create_bat_files(bin_dir, lang);
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push_to_stack(result);
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}
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// Runs "sh configure" to generate things like lyxrc.defaults.
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extern "C"
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void __declspec(dllexport) run_configure(HWND hwndParent,
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int string_size,
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char * variables,
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stack_t ** stacktop)
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{
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EXDLL_INIT();
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std::string const configure_file = pop_from_stack();
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std::string const path_prefix = pop_from_stack();
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int const result = run_configure(configure_file, path_prefix);
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push_to_stack(result);
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}
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// Set an environment variable
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extern "C"
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void __declspec(dllexport) set_env(HWND hwndParent,
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int string_size,
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char * variables,
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stack_t ** stacktop)
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{
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EXDLL_INIT();
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std::string const var_name = pop_from_stack();
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std::string const var_value = pop_from_stack();
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// Function returns a nonzero value on success.
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int const result =
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SetEnvironmentVariableA(var_name.c_str(), var_value.c_str()) ?
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0 : -1;
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push_to_stack(result);
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}
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