cmGetFilenameComponentCommand.cxx
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#include "cmGetFilenameComponentCommand.h"
#include "cmExecutionStatus.h"
#include "cmMakefile.h"
#include "cmProperty.h"
#include "cmStateTypes.h"
#include "cmStringAlgorithms.h"
#include "cmSystemTools.h"
// cmGetFilenameComponentCommand
bool cmGetFilenameComponentCommand(std::vector<std::string> const& args,
cmExecutionStatus& status)
{
if (args.size() < 3) {
status.SetError("called with incorrect number of arguments");
cmSystemTools::SetFatalErrorOccured();
return false;
}
// Check and see if the value has been stored in the cache
// already, if so use that value
if (args.size() >= 4 && args.back() == "CACHE") {
cmProp cacheValue = status.GetMakefile().GetDefinition(args.front());
if (cacheValue && !cmIsNOTFOUND(*cacheValue)) {
return true;
}
}
std::string result;
std::string filename = args[1];
if (filename.find("[HKEY") != std::string::npos) {
// Check the registry as the target application would view it.
cmSystemTools::KeyWOW64 view = cmSystemTools::KeyWOW64_32;
cmSystemTools::KeyWOW64 other_view = cmSystemTools::KeyWOW64_64;
if (status.GetMakefile().PlatformIs64Bit()) {
view = cmSystemTools::KeyWOW64_64;
other_view = cmSystemTools::KeyWOW64_32;
}
cmSystemTools::ExpandRegistryValues(filename, view);
if (filename.find("/registry") != std::string::npos) {
std::string other = args[1];
cmSystemTools::ExpandRegistryValues(other, other_view);
if (other.find("/registry") == std::string::npos) {
filename = other;
}
}
}
std::string storeArgs;
std::string programArgs;
if (args[2] == "DIRECTORY" || args[2] == "PATH") {
result = cmSystemTools::GetFilenamePath(filename);
} else if (args[2] == "NAME") {
result = cmSystemTools::GetFilenameName(filename);
} else if (args[2] == "PROGRAM") {
for (unsigned int i = 2; i < args.size(); ++i) {
if (args[i] == "PROGRAM_ARGS") {
i++;
if (i < args.size()) {
storeArgs = args[i];
}
}
}
// First assume the path to the program was specified with no
// arguments and with no quoting or escaping for spaces.
// Only bother doing this if there is non-whitespace.
if (!cmTrimWhitespace(filename).empty()) {
result = cmSystemTools::FindProgram(filename);
}
// If that failed then assume a command-line string was given
// and split the program part from the rest of the arguments.
if (result.empty()) {
std::string program;
if (cmSystemTools::SplitProgramFromArgs(filename, program,
programArgs)) {
if (cmSystemTools::FileExists(program)) {
result = program;
} else {
result = cmSystemTools::FindProgram(program);
}
}
if (result.empty()) {
programArgs.clear();
}
}
} else if (args[2] == "EXT") {
result = cmSystemTools::GetFilenameExtension(filename);
} else if (args[2] == "NAME_WE") {
result = cmSystemTools::GetFilenameWithoutExtension(filename);
} else if (args[2] == "LAST_EXT") {
result = cmSystemTools::GetFilenameLastExtension(filename);
} else if (args[2] == "NAME_WLE") {
result = cmSystemTools::GetFilenameWithoutLastExtension(filename);
} else if (args[2] == "ABSOLUTE" || args[2] == "REALPATH") {
// If the path given is relative, evaluate it relative to the
// current source directory unless the user passes a different
// base directory.
std::string baseDir = status.GetMakefile().GetCurrentSourceDirectory();
for (unsigned int i = 3; i < args.size(); ++i) {
if (args[i] == "BASE_DIR") {
++i;
if (i < args.size()) {
baseDir = args[i];
}
}
}
// Collapse the path to its simplest form.
result = cmSystemTools::CollapseFullPath(filename, baseDir);
if (args[2] == "REALPATH") {
// Resolve symlinks if possible
result = cmSystemTools::GetRealPath(result);
}
} else {
std::string err = "unknown component " + args[2];
status.SetError(err);
cmSystemTools::SetFatalErrorOccured();
return false;
}
if (args.size() >= 4 && args.back() == "CACHE") {
if (!programArgs.empty() && !storeArgs.empty()) {
status.GetMakefile().AddCacheDefinition(
storeArgs, programArgs, "",
args[2] == "PATH" ? cmStateEnums::FILEPATH : cmStateEnums::STRING);
}
status.GetMakefile().AddCacheDefinition(
args.front(), result, "",
args[2] == "PATH" ? cmStateEnums::FILEPATH : cmStateEnums::STRING);
} else {
if (!programArgs.empty() && !storeArgs.empty()) {
status.GetMakefile().AddDefinition(storeArgs, programArgs);
}
status.GetMakefile().AddDefinition(args.front(), result);
}
return true;
}