mirror of
https://github.com/bolero-MURAKAMI/Sprout.git
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431 lines
13 KiB
C++
431 lines
13 KiB
C++
/*=============================================================================
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Copyright (c) 2011-2016 Bolero MURAKAMI
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https://github.com/bolero-MURAKAMI/Sprout
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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=============================================================================*/
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#include <cstdlib>
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#include <iostream>
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#include <sstream>
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#include <fstream>
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#include <string>
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#include <vector>
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#include <utility>
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#include <iterator>
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#include <algorithm>
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#include <boost/wave.hpp>
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#include <boost/wave/preprocessing_hooks.hpp>
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#include <boost/wave/cpplexer/cpp_lex_token.hpp>
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#include <boost/wave/cpplexer/cpp_lex_iterator.hpp>
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#include <boost/graph/adjacency_list.hpp>
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#include <boost/graph/depth_first_search.hpp>
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#include <boost/graph/graphviz.hpp>
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#include <boost/filesystem.hpp>
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#include <boost/range.hpp>
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#include <boost/algorithm/string.hpp>
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#include "../sprig/algorithm/string.hpp"
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#include "../sprig/graph/depth_first_search.hpp"
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class include_graph_hooks
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: public boost::wave::context_policies::default_preprocessing_hooks
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{
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private:
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typedef boost::wave::context_policies::default_preprocessing_hooks base_type;
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public:
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// node of graph
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struct node_type {
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boost::filesystem::path absolute;
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boost::filesystem::path filename;
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bool has_include_guard;
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public:
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node_type(boost::filesystem::path const& absolute, boost::filesystem::path const& filename)
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: absolute(absolute), filename(filename), has_include_guard(false)
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{}
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operator boost::filesystem::path const&() const {
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return filename;
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}
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operator std::string() const {
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return filename.generic_string();
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}
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friend bool operator==(node_type const& lhs, node_type const& rhs) {
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return lhs.absolute == rhs.absolute;
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}
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friend bool operator==(node_type const& lhs, boost::filesystem::path const& rhs) {
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return lhs.absolute == rhs;
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}
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friend bool operator==(boost::filesystem::path const& lhs, node_type const& rhs) {
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return lhs == rhs.absolute;
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}
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friend bool operator!=(node_type const& lhs, node_type const& rhs) {
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return !(lhs == rhs);
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}
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friend bool operator!=(node_type const& lhs, boost::filesystem::path const& rhs) {
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return !(lhs == rhs);
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}
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friend bool operator!=(boost::filesystem::path const& lhs, node_type const& rhs) {
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return !(lhs == rhs);
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}
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template<typename Elem, typename Traits>
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friend std::basic_ostream<Elem, Traits>& operator<<(std::basic_ostream<Elem, Traits>& lhs, node_type const& rhs) {
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return lhs << rhs.filename.generic_string();
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}
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};
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typedef std::pair<int, int> edge_type;
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typedef boost::adjacency_list<
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boost::vecS,
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boost::vecS,
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boost::bidirectionalS,
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boost::no_property
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> graph_type;
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private:
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std::vector<node_type> node_list_;
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std::vector<edge_type> edge_list_;
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std::vector<int> current_list_;
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int current_;
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public:
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explicit include_graph_hooks(boost::filesystem::path const& start)
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: node_list_{node_type{boost::filesystem::absolute(start), start.filename()}}
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, edge_list_{}
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, current_list_{0}
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, current_(0)
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{}
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std::vector<node_type> const&
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nodes() const {
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return node_list_;
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}
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std::vector<edge_type> const&
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edges() const {
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return edge_list_;
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}
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// make graph
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template<typename Graph>
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Graph make_graph() const {
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return Graph(edge_list_.begin(), edge_list_.end(), node_list_.size());
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}
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graph_type make_graph() const {
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return make_graph<graph_type>();
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}
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// output graphviz
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void write_graphviz(std::ostream& out) const {
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boost::write_graphviz(
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out,
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make_graph<graph_type>(),
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boost::make_label_writer(&node_list_[0])
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);
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}
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// collect no include guard files
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template<typename OutputIterator>
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void collect_no_include_guard_files(OutputIterator result) const {
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std::copy_if(
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node_list_.begin() + 1, node_list_.end(), result,
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[](node_type const& e) { return !e.has_include_guard; }
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);
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}
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// collect circulated includes
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template<typename OutputIterator>
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void collect_circulated_includes(OutputIterator result) const {
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boost::depth_first_search(
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make_graph<graph_type>(),
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boost::visitor(sprig::make_back_edge_recorder(result))
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);
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}
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// collect isolated files
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template<typename OutputIterator>
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void collect_isolated_files(OutputIterator result, boost::filesystem::path const& path) const {
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typedef boost::filesystem::recursive_directory_iterator iterator;
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for (auto it = iterator(path), last = iterator(); it != last; ++it) {
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if (!boost::filesystem::is_directory(*it)) {
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boost::filesystem::path abspath(boost::filesystem::absolute(*it));
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auto found = std::find(node_list_.begin(), node_list_.end(), abspath);
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if (found == node_list_.end()) { // add result if not include
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*result++ = abspath.generic_string();
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}
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}
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}
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}
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public:
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// hook the locate include file process
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template<typename Context>
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bool locate_include_file(
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Context& ctx,
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std::string& file_path,
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bool is_system,
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char const* current_name,
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std::string& dir_path,
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std::string& native_name
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)
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{
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std::string filename = is_system ? ('<' + file_path + '>') : ('\"' + file_path + '\"');
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if (!base_type::locate_include_file(ctx, file_path, is_system, current_name, dir_path, native_name)) {
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return false;
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}
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dir_path = filename; // overwrite the include directive text
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return true;
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}
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// hook the opened include file process
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template<typename Context>
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void opened_include_file(
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Context const& /*ctx*/,
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std::string const& relname,
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std::string const& absname,
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bool /*is_system_include*/
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)
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{
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boost::filesystem::path abspath(boost::filesystem::absolute(absname));
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auto found = std::find(node_list_.begin(), node_list_.end(), abspath);
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auto to = std::distance(node_list_.begin(), found);
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if (found == node_list_.end()) { // add node if first include
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node_list_.emplace_back(abspath, relname);
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}
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edge_list_.emplace_back(current_list_.back(), to);
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current_list_.push_back(to); // update current
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current_ = to;
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}
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// hook the returning from include file process
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template<typename Context>
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void returning_from_include_file(Context const& /*ctx*/) {
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current_ = current_list_.back();
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current_list_.pop_back(); // revert current
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}
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// hook the detected include guard process
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template<typename Context>
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void detected_include_guard(
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Context const& /*ctx*/,
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std::string const& /*filename*/,
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std::string const& /*include_guard*/
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)
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{
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node_list_.at(current_).has_include_guard = true;
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}
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template<typename Context, typename Token>
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void detected_pragma_once(
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Context const& /*ctx*/,
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Token const& /*pragma_token*/,
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std::string const& /*filename*/
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)
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{
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node_list_.at(current_).has_include_guard = true;
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}
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};
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// collect sysinclude paths
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template<typename OutputIterator>
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void collect_sysinclude_paths(OutputIterator result, std::string const& command = "g++") {
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{
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std::ofstream ofs("_collect_sysinclude_paths.cpp");
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}
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std::system((command + " -v -E _collect_sysinclude_paths.cpp 1> /dev/null 2> _collect_sysinclude_paths").c_str());
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{
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std::ifstream ifs("_collect_sysinclude_paths");
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std::string text(
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std::istreambuf_iterator<char>(ifs.rdbuf()),
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std::istreambuf_iterator<char>()
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);
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auto rng = boost::make_iterator_range(text);
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rng = sprig::find_skip(rng, boost::algorithm::first_finder("#include <...>")); // skip to begin of the include path
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rng = sprig::find_skip(rng, boost::algorithm::first_finder("\n"));
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while (boost::algorithm::starts_with(rng, " ")) {
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auto found = sprig::find_between(
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rng,
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boost::algorithm::token_finder(boost::algorithm::is_space(), boost::algorithm::token_compress_on),
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boost::algorithm::first_finder("\n")
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);
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*result++ = std::string(boost::begin(found), boost::end(found));
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rng = boost::make_iterator_range(boost::end(found), boost::end(rng));
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rng = sprig::find_skip(rng, boost::algorithm::first_finder("\n"));
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}
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}
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}
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int main(int argc, const char* argv[]) {
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std::string src;
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std::string command;
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std::string text;
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if (argc >= 2) {
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src = argv[1];
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// read text from file
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std::ifstream ifs(argv[1]);
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text = std::string(
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std::istreambuf_iterator<char>(ifs.rdbuf()),
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std::istreambuf_iterator<char>()
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);
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}
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if (argc >= 3) {
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command = argv[2];
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}
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try {
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// prepare preprocessor
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typedef boost::wave::context<
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std::string::iterator,
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boost::wave::cpplexer::lex_iterator<boost::wave::cpplexer::lex_token<> >,
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boost::wave::iteration_context_policies::load_file_to_string,
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::include_graph_hooks
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> context_type;
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context_type ctx(text.begin(), text.end(), src.c_str(), ::include_graph_hooks(src));
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// set language
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ctx.set_language(
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boost::wave::language_support(
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boost::wave::support_cpp11
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| boost::wave::support_option_include_guard_detection // include guard detection
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)
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);
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// set include paths
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if (!command.empty()) {
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std::cout
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<< "collect command :\n"
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<< command << "\n"
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;
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}
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{
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std::vector<std::string> list;
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if (command.empty()) {
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::collect_sysinclude_paths(std::back_inserter(list));
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} else {
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::collect_sysinclude_paths(std::back_inserter(list), command);
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}
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std::cout
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<< "sysinclude paths :\n"
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;
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for (auto&& e : list) {
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std::cout
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<< " " << e << "\n"
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;
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ctx.add_sysinclude_path(e.c_str());
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}
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std::cout
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<< std::flush
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;
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}
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if (!src.empty()) {
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// run preprocessor
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for (auto&& e : ctx) {
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//std::cout << e.get_value();
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}
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}
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for ( ; ;) {
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std::cout
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<< "> "
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<< std::flush
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;
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std::string line;
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std::getline(std::cin, line);
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if (line.empty()) {
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break;
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}
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std::vector<std::string> tokens;
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boost::algorithm::split(tokens, line, boost::algorithm::is_space());
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if (tokens.at(0) == "find") {
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// find include paths
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if (tokens.size() < 2) {
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std::cout
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<< "missing parameter.\n"
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<< std::flush
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;
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continue;
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}
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std::cout
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<< "find <" << tokens.at(1) << "> :\n"
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;
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std::string filepath(tokens.at(1));
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std::string dirpath;
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if (!ctx.find_include_file(filepath, dirpath, true, 0)) {
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std::cout
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<< " not found\n"
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<< std::flush
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;
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continue;
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}
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std::cout
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<< " " << filepath << "\n"
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<< std::flush
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;
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} else if (tokens.at(0) == "graph") {
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// output graph
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std::cout
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<< "graph output > out.graph.dot\n"
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;
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std::ofstream ofs("out.graph.dot");
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ctx.get_hooks().write_graphviz(ofs);
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std::cout
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<< std::flush
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;
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} else if (tokens.at(0) == "noguard") {
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// output no include guarde files
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std::vector<::include_graph_hooks::node_type> list;
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ctx.get_hooks().collect_no_include_guard_files(std::back_inserter(list));
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std::cout
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<< "no include guarde files (" << list.size() << ") :\n"
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;
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for (auto const& e : list) {
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std::cout
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<< " " << e << "\n"
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;
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}
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std::cout
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<< std::flush
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;
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} else if (tokens.at(0) == "circulated") {
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// output circulated includes
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std::vector<typename boost::graph_traits<::include_graph_hooks::graph_type>::edge_descriptor> list;
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ctx.get_hooks().collect_circulated_includes(std::back_inserter(list));
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auto g = ctx.get_hooks().make_graph();
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std::cout
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<< "circulated includes (" << list.size() << ") :\n"
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;
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for (auto const& e : list) {
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std::cout
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<< " " << boost::source(e, g) << "[" << ctx.get_hooks().nodes()[boost::source(e, g)] << "]\n"
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<< " -> " << boost::target(e, g) << "[" << ctx.get_hooks().nodes()[boost::target(e, g)] << "]\n"
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;
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}
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std::cout
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<< std::flush
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;
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} else if (tokens.at(0) == "isolated") {
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// output Sprout isolated files
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std::cout
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<< "isolated files output > out.isolated.txt\n"
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;
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std::ofstream ofs("out.isolated.txt");
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// get Sprout system include path
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std::string filepath("sprout/config.hpp");
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std::string dirpath;
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if (!ctx.find_include_file(filepath, dirpath, true, 0)) {
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std::cerr
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<< "#error sprout not found\n"
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<< std::flush
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;
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continue;
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}
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dirpath = boost::filesystem::path(filepath).parent_path().generic_string();
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// output list
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std::vector<std::string> list;
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ctx.get_hooks().collect_isolated_files(std::back_inserter(list), dirpath);
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std::sort(list.begin(), list.end());
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std::copy(list.begin(), list.end(), std::ostream_iterator<std::string>(ofs, "\n"));
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std::cout
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<< std::flush
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;
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} else {
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std::cout
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<< "invalid command\n"
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<< std::flush
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;
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}
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}
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} catch (boost::wave::cpp_exception& e) {
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// eorror handling
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std::cerr
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<< "#error " << e.file_name() << "(" << e.line_no() << "):" << e.description() << "\n"
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<< std::flush
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;
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}
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}
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