CMake/Source/cmAddSubDirectoryCommand.cxx
Artur Ryt 01b2d6ab74 Modernize: Use ranged for-loops when possible
Replaced most manual `const_iterator`-based loops and some
reverse-iterator loops with range loops.

Fixes: #18858
2019-02-07 22:39:05 +01:00

111 lines
3.4 KiB
C++

/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#include "cmAddSubDirectoryCommand.h"
#include <sstream>
#include <string.h>
#include "cmAlgorithms.h"
#include "cmMakefile.h"
#include "cmSystemTools.h"
class cmExecutionStatus;
// cmAddSubDirectoryCommand
bool cmAddSubDirectoryCommand::InitialPass(
std::vector<std::string> const& args, cmExecutionStatus&)
{
if (args.empty()) {
this->SetError("called with incorrect number of arguments");
return false;
}
// store the binpath
std::string const& srcArg = args.front();
std::string binArg;
bool excludeFromAll = false;
// process the rest of the arguments looking for optional args
for (std::string const& arg : cmMakeRange(args).advance(1)) {
if (arg == "EXCLUDE_FROM_ALL") {
excludeFromAll = true;
continue;
}
if (binArg.empty()) {
binArg = arg;
} else {
this->SetError("called with incorrect number of arguments");
return false;
}
}
// Compute the full path to the specified source directory.
// Interpret a relative path with respect to the current source directory.
std::string srcPath;
if (cmSystemTools::FileIsFullPath(srcArg)) {
srcPath = srcArg;
} else {
srcPath = this->Makefile->GetCurrentSourceDirectory();
srcPath += "/";
srcPath += srcArg;
}
if (!cmSystemTools::FileIsDirectory(srcPath)) {
std::string error = "given source \"";
error += srcArg;
error += "\" which is not an existing directory.";
this->SetError(error);
return false;
}
srcPath = cmSystemTools::CollapseFullPath(srcPath);
// Compute the full path to the binary directory.
std::string binPath;
if (binArg.empty()) {
// No binary directory was specified. If the source directory is
// not a subdirectory of the current directory then it is an
// error.
if (!cmSystemTools::IsSubDirectory(
srcPath, this->Makefile->GetCurrentSourceDirectory())) {
std::ostringstream e;
e << "not given a binary directory but the given source directory "
<< "\"" << srcPath << "\" is not a subdirectory of \""
<< this->Makefile->GetCurrentSourceDirectory() << "\". "
<< "When specifying an out-of-tree source a binary directory "
<< "must be explicitly specified.";
this->SetError(e.str());
return false;
}
// Remove the CurrentDirectory from the srcPath and replace it
// with the CurrentOutputDirectory.
const std::string& src = this->Makefile->GetCurrentSourceDirectory();
const std::string& bin = this->Makefile->GetCurrentBinaryDirectory();
size_t srcLen = src.length();
size_t binLen = bin.length();
if (srcLen > 0 && src.back() == '/') {
--srcLen;
}
if (binLen > 0 && bin.back() == '/') {
--binLen;
}
binPath = bin.substr(0, binLen) + srcPath.substr(srcLen);
} else {
// Use the binary directory specified.
// Interpret a relative path with respect to the current binary directory.
if (cmSystemTools::FileIsFullPath(binArg)) {
binPath = binArg;
} else {
binPath = this->Makefile->GetCurrentBinaryDirectory();
binPath += "/";
binPath += binArg;
}
}
binPath = cmSystemTools::CollapseFullPath(binPath);
// Add the subdirectory using the computed full paths.
this->Makefile->AddSubDirectory(srcPath, binPath, excludeFromAll, true);
return true;
}