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/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#include "cmGccDepfileReader.h"
#include <type_traits>
#include <utility>
#include <vector>
#include <cm/optional>
#include "cmGccDepfileLexerHelper.h"
#include "cmStringAlgorithms.h"
#include "cmSystemTools.h"
cm::optional<cmGccDepfileContent> cmReadGccDepfile(const char* filePath,
const std::string& prefix)
{
cmGccDepfileLexerHelper helper;
if (!helper.readFile(filePath)) {
return cm::nullopt;
}
auto deps = cm::make_optional(std::move(helper).extractContent());
for (auto& dep : *deps) {
for (auto& rule : dep.rules) {
if (!prefix.empty() && !cmSystemTools::FileIsFullPath(rule)) {
rule = cmStrCat(prefix, '/', rule);
}
if (cmSystemTools::FileIsFullPath(rule)) {
rule = cmSystemTools::CollapseFullPath(rule);
}
cmSystemTools::ConvertToLongPath(rule);
}
for (auto& path : dep.paths) {
if (!prefix.empty() && !cmSystemTools::FileIsFullPath(path)) {
path = cmStrCat(prefix, '/', path);
}
if (cmSystemTools::FileIsFullPath(path)) {
path = cmSystemTools::CollapseFullPath(path);
}
cmSystemTools::ConvertToLongPath(path);
}
}
return deps;
}
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