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cmake: Improve error message when failing to update generation timestamp

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Include the underlying system error description.

Issue: #21571, #22086
This commit is contained in:
Brad King
2021-04-20 12:11:50 -04:00
parent 63ffe21036
commit 835896e985
1 changed files with 6 additions and 2 deletions
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8
Source/cmake.cxx
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@@ -3074,12 +3074,16 @@ static bool cmakeCheckStampFile(const std::string& stampName)
cmsys::ofstream stamp(stampTemp.c_str());
stamp << "# CMake generation timestamp file for this directory.\n";
}
if (cmSystemTools::RenameFile(stampTemp, stampName)) {
std::string err;
if (cmSystemTools::RenameFile(stampTemp, stampName,
cmSystemTools::Replace::Yes, &err) ==
cmSystemTools::RenameResult::Success) {
// CMake does not need to re-run because the stamp file is up-to-date.
return true;
}
cmSystemTools::RemoveFile(stampTemp);
cmSystemTools::Error("Cannot restore timestamp " + stampName);
cmSystemTools::Error(
cmStrCat("Cannot restore timestamp \"", stampName, "\": ", err));
return false;
}