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file: Normalize GENERATE command input and output file paths

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Normalize absolute paths so that no extra components like `../` or
`...//...` appear that later confuse relative path computation.
In particular, we expect paths sent to AddCMakeDependFile and
AddCMakeOutputFile to be normalized.

Do this only for paths that are already absolute because
we can't handle relative paths yet (see #16786).

Fixes: #16892
This commit is contained in:
Brad King
2017-06-08 09:54:37 -04:00
parent cab94b7c4f
commit c41a7c7d90
1 changed files with 13 additions and 5 deletions
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18
Source/cmGeneratorExpressionEvaluationFile.cxx
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@@ -51,11 +51,15 @@ void cmGeneratorExpressionEvaluationFile::Generate(
}
}
const std::string outputFileName = this->OutputFileExpr->Evaluate(
std::string outputFileName = this->OutputFileExpr->Evaluate(
lg, config, false, CM_NULLPTR, CM_NULLPTR, CM_NULLPTR, lang);
const std::string outputContent = inputExpression->Evaluate(
lg, config, false, CM_NULLPTR, CM_NULLPTR, CM_NULLPTR, lang);
if (cmSystemTools::FileIsFullPath(outputFileName)) {
outputFileName = cmSystemTools::CollapseFullPath(outputFileName);
}
std::map<std::string, std::string>::iterator it =
outputFiles.find(outputFileName);
@@ -111,12 +115,16 @@ void cmGeneratorExpressionEvaluationFile::Generate(cmLocalGenerator* lg)
if (this->InputIsContent) {
inputContent = this->Input;
} else {
lg->GetMakefile()->AddCMakeDependFile(this->Input);
cmSystemTools::GetPermissions(this->Input.c_str(), perm);
cmsys::ifstream fin(this->Input.c_str());
std::string inputFileName = this->Input;
if (cmSystemTools::FileIsFullPath(inputFileName)) {
inputFileName = cmSystemTools::CollapseFullPath(inputFileName);
}
lg->GetMakefile()->AddCMakeDependFile(inputFileName);
cmSystemTools::GetPermissions(inputFileName.c_str(), perm);
cmsys::ifstream fin(inputFileName.c_str());
if (!fin) {
std::ostringstream e;
e << "Evaluation file \"" << this->Input << "\" cannot be read.";
e << "Evaluation file \"" << inputFileName << "\" cannot be read.";
lg->IssueMessage(cmake::FATAL_ERROR, e.str());
return;
}