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// Copyright 2011 Google Inc. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "stat_cache.h"
#include <stdio.h>
#include "edit_distance.h"
#include "graph.h"
FileStat* StatCache::GetFile(const std::string& path) {
Paths::iterator i = paths_.find(path.c_str());
if (i != paths_.end())
return i->second;
FileStat* file = new FileStat(path);
paths_[file->path_.c_str()] = file;
return file;
}
FileStat* StatCache::SpellcheckFile(const std::string& path) {
const bool kAllowReplacements = true;
const int kMaxValidEditDistance = 3;
int min_distance = kMaxValidEditDistance + 1;
FileStat* result = NULL;
for (Paths::iterator i = paths_.begin(); i != paths_.end(); ++i) {
int distance = EditDistance(
i->first, path, kAllowReplacements, kMaxValidEditDistance);
if (distance < min_distance && i->second->node_) {
min_distance = distance;
result = i->second;
}
}
return result;
}
void StatCache::Dump() {
for (Paths::iterator i = paths_.begin(); i != paths_.end(); ++i) {
FileStat* file = i->second;
printf("%s %s\n",
file->path_.c_str(),
file->status_known() ? (file->node_->dirty_ ? "dirty" : "clean")
: "unknown");
}
}
void StatCache::Invalidate() {
for (Paths::iterator i = paths_.begin(); i != paths_.end(); ++i) {
i->second->mtime_ = -1;
i->second->node_->dirty_ = false;
}
}
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