147 lines
4.9 KiB
C++
147 lines
4.9 KiB
C++
#include "hook_manager.hh"
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#include "buffer_utils.hh"
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#include "clock.hh"
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#include "command_manager.hh"
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#include "context.hh"
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#include "display_buffer.hh"
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#include "face_registry.hh"
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#include "option.hh"
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#include "ranges.hh"
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#include "regex.hh"
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namespace Kakoune
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{
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struct HookManager::Hook
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{
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String group;
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Regex filter;
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String commands;
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};
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HookManager::HookManager() : m_parent(nullptr) {}
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HookManager::HookManager(HookManager& parent) : SafeCountable{}, m_parent(&parent) {}
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HookManager::~HookManager() = default;
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void HookManager::add_hook(StringView hook_name, String group, Regex filter, String commands)
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{
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auto& hooks = m_hooks[hook_name];
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hooks.emplace_back(new Hook{std::move(group), std::move(filter), std::move(commands)});
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}
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void HookManager::remove_hooks(StringView group)
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{
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if (group.empty())
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throw runtime_error("invalid id");
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for (auto& list : m_hooks)
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{
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auto it = std::remove_if(list.value.begin(), list.value.end(),
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[&](const std::unique_ptr<Hook>& h)
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{ return h->group == group; });
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if (not m_running_hooks.empty()) // we are running some hooks, defer deletion
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m_hooks_trash.insert(m_hooks_trash.end(), std::make_move_iterator(it),
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std::make_move_iterator(list.value.end()));
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list.value.erase(it, list.value.end());
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}
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}
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CandidateList HookManager::complete_hook_group(StringView prefix, ByteCount pos_in_token)
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{
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CandidateList res;
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for (auto& list : m_hooks)
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{
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auto container = list.value | transform([](const std::unique_ptr<Hook>& h) -> const String& { return h->group; });
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for (auto& c : complete(prefix, pos_in_token, container))
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{
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if (!contains(res, c))
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res.push_back(c);
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}
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}
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return res;
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}
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void HookManager::run_hook(StringView hook_name, StringView param, Context& context) const
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{
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if (context.hooks_disabled())
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return;
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if (m_parent)
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m_parent->run_hook(hook_name, param, context);
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auto hook_list = m_hooks.find(hook_name);
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if (hook_list == m_hooks.end())
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return;
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if (contains(m_running_hooks, std::make_pair(hook_name, param)))
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{
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auto error = format("recursive call of hook {}/{}, not executing", hook_name, param);
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write_to_debug_buffer(error);
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return;
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}
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m_running_hooks.emplace_back(hook_name, param);
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auto pop_running_hook = on_scope_end([this]{
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m_running_hooks.pop_back();
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if (m_running_hooks.empty())
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m_hooks_trash.clear();
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});
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const DebugFlags debug_flags = context.options()["debug"].get<DebugFlags>();
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const bool profile = debug_flags & DebugFlags::Profile;
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auto start_time = profile ? Clock::now() : TimePoint{};
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auto& disabled_hooks = context.options()["disabled_hooks"].get<Regex>();
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struct ToRun { Hook* hook; MatchResults<const char*> captures; };
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Vector<ToRun> hooks_to_run; // The m_hooks_trash vector ensure hooks wont die during this method
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for (auto& hook : hook_list->value)
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{
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MatchResults<const char*> captures;
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if ((hook->group.empty() or disabled_hooks.empty() or
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not regex_match(hook->group.begin(), hook->group.end(), disabled_hooks))
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and regex_match(param.begin(), param.end(), captures, hook->filter))
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hooks_to_run.push_back({ hook.get(), std::move(captures) });
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}
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bool hook_error = false;
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for (auto& to_run : hooks_to_run)
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{
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try
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{
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if (debug_flags & DebugFlags::Hooks)
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write_to_debug_buffer(format("hook {}({})/{}", hook_name, param, to_run.hook->group));
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ScopedSetBool disable_history{context.history_disabled()};
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EnvVarMap env_vars{ {"hook_param", param.str()} };
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for (size_t i = 0; i < to_run.captures.size(); ++i)
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env_vars.insert({format("hook_param_capture_{}", i),
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{to_run.captures[i].first, to_run.captures[i].second}});
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CommandManager::instance().execute(to_run.hook->commands, context,
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{ {}, std::move(env_vars) });
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}
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catch (runtime_error& err)
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{
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hook_error = true;
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write_to_debug_buffer(format("error running hook {}({})/{}: {}",
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hook_name, param, to_run.hook->group, err.what()));
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}
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}
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if (hook_error)
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context.print_status({
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format("Error running hooks for '{}' '{}', see *debug* buffer",
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hook_name, param), get_face("Error") });
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if (profile)
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{
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auto end_time = Clock::now();
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auto full = std::chrono::duration_cast<std::chrono::microseconds>(end_time - start_time);
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write_to_debug_buffer(format("hook '{}({})' took {} us", hook_name, param, (size_t)full.count()));
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}
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}
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}
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