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6a6efdcaed
Even though Makefile generators pass source files and include directories by absolute path to the compiler, the compiler may generate depfile paths relative to the current working directory. For example, `ccache` with `CCACHE_BASEDIR` may transform paths this way. When reading a depfile, convert relative dependencies to absolute paths before placing them in `compiler_depend.make`, which is later evaluated in the top-level build directory. Fixes: #22364
49 lines
1.4 KiB
C++
49 lines
1.4 KiB
C++
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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file Copyright.txt or https://cmake.org/licensing for details. */
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#include "cmGccDepfileReader.h"
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#include <type_traits>
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#include <utility>
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#include <vector>
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#include <cm/optional>
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#include "cmGccDepfileLexerHelper.h"
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#include "cmStringAlgorithms.h"
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#include "cmSystemTools.h"
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cm::optional<cmGccDepfileContent> cmReadGccDepfile(
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const char* filePath, const std::string& prefix,
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GccDepfilePrependPaths prependPaths)
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{
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cmGccDepfileLexerHelper helper;
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if (!helper.readFile(filePath)) {
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return cm::nullopt;
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}
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auto deps = cm::make_optional(std::move(helper).extractContent());
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for (auto& dep : *deps) {
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for (auto& rule : dep.rules) {
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if (prependPaths == GccDepfilePrependPaths::All && !prefix.empty() &&
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!cmSystemTools::FileIsFullPath(rule)) {
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rule = cmStrCat(prefix, '/', rule);
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}
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if (cmSystemTools::FileIsFullPath(rule)) {
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rule = cmSystemTools::CollapseFullPath(rule);
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}
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cmSystemTools::ConvertToLongPath(rule);
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}
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for (auto& path : dep.paths) {
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if (!prefix.empty() && !cmSystemTools::FileIsFullPath(path)) {
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path = cmStrCat(prefix, '/', path);
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}
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if (cmSystemTools::FileIsFullPath(path)) {
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path = cmSystemTools::CollapseFullPath(path);
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}
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cmSystemTools::ConvertToLongPath(path);
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}
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}
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return deps;
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}
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