mirror of https://github.com/tstack/lnav.git
130 lines
4.7 KiB
C++
130 lines
4.7 KiB
C++
/**
|
|
* Copyright (c) 2020, Timothy Stack
|
|
*
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* * Redistributions of source code must retain the above copyright notice, this
|
|
* list of conditions and the following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
* * Neither the name of Timothy Stack nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ''AS IS'' AND ANY
|
|
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
|
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
|
|
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
|
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
|
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
|
|
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
|
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include "unique_path.hh"
|
|
|
|
#include "config.h"
|
|
|
|
void
|
|
unique_path_generator::add_source(
|
|
const std::shared_ptr<unique_path_source>& path_source)
|
|
{
|
|
ghc::filesystem::path path = path_source->get_path();
|
|
|
|
path_source->set_unique_path(path.filename());
|
|
path_source->set_path_prefix(path.parent_path());
|
|
this->upg_unique_paths[path.filename()].push_back(path_source);
|
|
}
|
|
|
|
void
|
|
unique_path_generator::generate()
|
|
{
|
|
int loop_count = 0;
|
|
|
|
while (!this->upg_unique_paths.empty()) {
|
|
std::vector<std::shared_ptr<unique_path_source>> collisions;
|
|
|
|
for (const auto& pair : this->upg_unique_paths) {
|
|
if (pair.second.size() == 1) {
|
|
if (loop_count > 0) {
|
|
std::shared_ptr<unique_path_source> src = pair.second[0];
|
|
|
|
src->set_unique_path("[" + src->get_unique_path());
|
|
}
|
|
|
|
this->upg_max_len
|
|
= std::max(this->upg_max_len,
|
|
pair.second[0]->get_unique_path().size());
|
|
} else {
|
|
bool all_common = true;
|
|
|
|
do {
|
|
std::string common;
|
|
|
|
for (auto& src : pair.second) {
|
|
auto& path = src->get_path_prefix();
|
|
|
|
if (common.empty()) {
|
|
common = path.filename();
|
|
if (common.empty()) {
|
|
all_common = false;
|
|
}
|
|
} else if (common != path.filename()) {
|
|
all_common = false;
|
|
}
|
|
}
|
|
|
|
if (all_common) {
|
|
for (auto& src : pair.second) {
|
|
auto& path = src->get_path_prefix();
|
|
auto par = path.parent_path();
|
|
|
|
if (path.empty() || path == par) {
|
|
all_common = false;
|
|
} else {
|
|
src->set_path_prefix(path.parent_path());
|
|
}
|
|
}
|
|
}
|
|
} while (all_common);
|
|
|
|
collisions.insert(
|
|
collisions.end(), pair.second.begin(), pair.second.end());
|
|
}
|
|
}
|
|
|
|
this->upg_unique_paths.clear();
|
|
|
|
for (auto& src : collisions) {
|
|
const auto unique_path = src->get_unique_path();
|
|
auto& prefix = src->get_path_prefix();
|
|
|
|
if (loop_count == 0) {
|
|
src->set_unique_path(prefix.filename().string() + "]/"
|
|
+ unique_path);
|
|
} else {
|
|
src->set_unique_path(prefix.filename().string() + "/"
|
|
+ unique_path);
|
|
}
|
|
|
|
ghc::filesystem::path parent = prefix.parent_path();
|
|
|
|
src->set_path_prefix(parent);
|
|
|
|
if (parent.empty() || parent == prefix) {
|
|
src->set_unique_path("[" + src->get_unique_path());
|
|
} else {
|
|
this->upg_unique_paths[src->get_unique_path()].push_back(src);
|
|
}
|
|
}
|
|
|
|
loop_count += 1;
|
|
}
|
|
}
|