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file: Add READ_SYMLINK sub-command

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This commit is contained in:
Kyle Edwards
2018-12-05 15:27:08 -05:00
parent 81bea69bd1
commit 98a39be6cf
12 changed files with 93 additions and 0 deletions
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Source/cmFileCommand.cxx
+30
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@@ -180,6 +180,9 @@ bool cmFileCommand::InitialPass(std::vector<std::string> const& args,
if (subCommand == "SIZE") {
return this->HandleSizeCommand(args);
}
if (subCommand == "READ_SYMLINK") {
return this->HandleReadSymlinkCommand(args);
}
std::string e = "does not recognize sub-command " + subCommand;
this->SetError(e);
@@ -3638,3 +3641,30 @@ bool cmFileCommand::HandleSizeCommand(std::vector<std::string> const& args)
return true;
}
bool cmFileCommand::HandleReadSymlinkCommand(
std::vector<std::string> const& args)
{
if (args.size() != 3) {
std::ostringstream e;
e << args[0] << " requires a file name and output variable";
this->SetError(e.str());
return false;
}
const std::string& filename = args[1];
const std::string& outputVariable = args[2];
std::string result;
if (!cmSystemTools::ReadSymlink(filename, result)) {
std::ostringstream e;
e << "READ_SYMLINK requested of path that is not a symlink:\n "
<< filename;
this->SetError(e.str());
return false;
}
this->Makefile->AddDefinition(outputVariable, result.c_str());
return true;
}