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/**
* Copyright (c) 2023, 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 "file_options.hh"
#include <fnmatch.h>
#include "base/lnav_log.hh"
#include "yajlpp/yajlpp.hh"
#include "yajlpp/yajlpp_def.hh"
namespace lnav {
static const typed_json_path_container<file_options> options_handlers = {
yajlpp::property_handler("default-zone")
.with_synopsis("<zone>")
.with_description("The default zone for log messages if the timestamp "
"does not include a zone.")
.with_example("America/Los_Angeles")
.for_field(&file_options::fo_default_zone),
};
static const typed_json_path_container<file_options_collection>
pattern_to_options_handlers = {
yajlpp::pattern_property_handler("(?<path>[^/]+)")
.with_description("Path or glob pattern")
.with_children(options_handlers)
.for_field(&file_options_collection::foc_pattern_to_options),
};
static const typed_json_path_container<file_options_collection>
collection_handlers = {
yajlpp::property_handler("paths")
.with_description("Mapping of file paths or glob patterns to the "
"associated options")
.with_children(pattern_to_options_handlers),
};
bool
file_options::operator==(const lnav::file_options& rhs) const
{
return this->fo_default_zone.pp_value == rhs.fo_default_zone.pp_value;
}
json_string
file_options::to_json_string() const
{
return options_handlers.to_json_string(*this);
}
Result<file_options_collection, std::vector<lnav::console::user_message>>
file_options_collection::from_json(intern_string_t src,
const string_fragment& frag)
{
return collection_handlers.parser_for(src).of(frag);
}
std::string
file_options_collection::to_json() const
{
return collection_handlers.formatter_for(*this)
.with_config(yajl_gen_beautify, true)
.to_string();
}
nonstd::optional<std::pair<std::string, file_options>>
file_options_collection::match(const std::string& path) const
{
auto iter = this->foc_pattern_to_options.find(path);
if (iter != this->foc_pattern_to_options.end()) {
return *iter;
}
for (const auto& pair : this->foc_pattern_to_options) {
auto rc = fnmatch(pair.first.c_str(), path.c_str(), FNM_PATHNAME);
if (rc == 0) {
return pair;
}
if (rc != FNM_NOMATCH) {
log_error("fnmatch('%s', '%s') failed -- %s",
pair.first.c_str(),
path.c_str(),
strerror(errno));
}
}
return nonstd::nullopt;
}
nonstd::optional<std::pair<std::string, file_options>>
file_options_hier::match(const ghc::filesystem::path& path) const
{
static const auto ROOT_PATH = ghc::filesystem::path("/");
auto lookup_path = path.parent_path();
while (true) {
const auto iter = this->foh_path_to_collection.find(lookup_path);
if (iter != this->foh_path_to_collection.end()) {
return iter->second.match(path.string());
}
auto next_lookup_path = lookup_path.parent_path();
if (lookup_path == next_lookup_path) {
if (lookup_path != ROOT_PATH) {
// remote paths won't end with root, so try that
next_lookup_path = ROOT_PATH;
} else {
break;
}
}
lookup_path = next_lookup_path;
}
return nonstd::nullopt;
}
} // namespace lnav
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