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cmake/Source/cmFindPackageCommand.cxx

2318 lines
71 KiB

/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#include "cmFindPackageCommand.h"
#include "cmSystemTools.h"
#include "cmsys/Directory.hxx"
#include "cmsys/FStream.hxx"
#include "cmsys/Glob.hxx"
#include "cmsys/RegularExpression.hxx"
#include "cmsys/String.h"
#include <algorithm>
#include <assert.h>
#include <deque>
#include <functional>
#include <iterator>
#include <memory> // IWYU pragma: keep
#include <sstream>
#include <stdio.h>
#include <string.h>
#include <utility>
#include "cmAlgorithms.h"
#include "cmMakefile.h"
#include "cmMessageType.h"
#include "cmPolicies.h"
#include "cmRange.h"
#include "cmSearchPath.h"
#include "cmState.h"
#include "cmStateTypes.h"
#include "cmVersion.h"
#if defined(__HAIKU__)
# include <FindDirectory.h>
# include <StorageDefs.h>
#endif
class cmExecutionStatus;
class cmFileList;
cmFindPackageCommand::PathLabel cmFindPackageCommand::PathLabel::UserRegistry(
"PACKAGE_REGISTRY");
cmFindPackageCommand::PathLabel cmFindPackageCommand::PathLabel::Builds(
"BUILDS");
cmFindPackageCommand::PathLabel
cmFindPackageCommand::PathLabel::SystemRegistry("SYSTEM_PACKAGE_REGISTRY");
struct StrverscmpGreater
{
bool operator()(const std::string& lhs, const std::string& rhs) const
{
return cmSystemTools::strverscmp(lhs, rhs) > 0;
}
};
struct StrverscmpLesser
{
bool operator()(const std::string& lhs, const std::string& rhs) const
{
return cmSystemTools::strverscmp(lhs, rhs) < 0;
}
};
void cmFindPackageCommand::Sort(std::vector<std::string>::iterator begin,
std::vector<std::string>::iterator end,
SortOrderType order, SortDirectionType dir)
{
if (order == Name_order) {
if (dir == Dec) {
std::sort(begin, end, std::greater<std::string>());
} else {
std::sort(begin, end);
}
} else if (order == Natural)
// natural order uses letters and numbers (contiguous numbers digit are
// compared such that e.g. 000 00 < 01 < 010 < 09 < 0 < 1 < 9 < 10
{
if (dir == Dec) {
std::sort(begin, end, StrverscmpGreater());
} else {
std::sort(begin, end, StrverscmpLesser());
}
}
// else do not sort
}
cmFindPackageCommand::cmFindPackageCommand()
{
this->CMakePathName = "PACKAGE";
this->Quiet = false;
this->Required = false;
this->NoUserRegistry = false;
this->NoSystemRegistry = false;
this->UseConfigFiles = true;
this->UseFindModules = true;
this->DebugMode = false;
this->UseLib32Paths = false;
this->UseLib64Paths = false;
this->UseLibx32Paths = false;
this->UseRealPath = false;
this->PolicyScope = true;
this->VersionMajor = 0;
this->VersionMinor = 0;
this->VersionPatch = 0;
this->VersionTweak = 0;
this->VersionCount = 0;
this->VersionExact = false;
this->VersionFoundMajor = 0;
this->VersionFoundMinor = 0;
this->VersionFoundPatch = 0;
this->VersionFoundTweak = 0;
this->VersionFoundCount = 0;
this->RequiredCMakeVersion = 0;
this->SortOrder = None;
this->SortDirection = Asc;
this->AppendSearchPathGroups();
this->DeprecatedFindModules["Qt"] = cmPolicies::CMP0084;
}
void cmFindPackageCommand::AppendSearchPathGroups()
{
std::vector<cmFindCommon::PathLabel>* labels;
// Update the All group with new paths
labels = &this->PathGroupLabelMap[PathGroup::All];
labels->insert(
std::find(labels->begin(), labels->end(), PathLabel::CMakeSystem),
PathLabel::UserRegistry);
labels->insert(
std::find(labels->begin(), labels->end(), PathLabel::CMakeSystem),
PathLabel::Builds);
labels->insert(std::find(labels->begin(), labels->end(), PathLabel::Guess),
PathLabel::SystemRegistry);
// Create the new path objects
this->LabeledPaths.insert(
std::make_pair(PathLabel::UserRegistry, cmSearchPath(this)));
this->LabeledPaths.insert(
std::make_pair(PathLabel::Builds, cmSearchPath(this)));
this->LabeledPaths.insert(
std::make_pair(PathLabel::SystemRegistry, cmSearchPath(this)));
}
bool cmFindPackageCommand::InitialPass(std::vector<std::string> const& args,
cmExecutionStatus&)
{
if (args.empty()) {
this->SetError("called with incorrect number of arguments");
return false;
}
// Lookup required version of CMake.
if (const char* rv =
this->Makefile->GetDefinition("CMAKE_MINIMUM_REQUIRED_VERSION")) {
unsigned int v[3] = { 0, 0, 0 };
sscanf(rv, "%u.%u.%u", &v[0], &v[1], &v[2]);
this->RequiredCMakeVersion = CMake_VERSION_ENCODE(v[0], v[1], v[2]);
}
// Check for debug mode.
this->DebugMode = this->Makefile->IsOn("CMAKE_FIND_DEBUG_MODE");
// Lookup target architecture, if any.
if (const char* arch =
this->Makefile->GetDefinition("CMAKE_LIBRARY_ARCHITECTURE")) {
this->LibraryArchitecture = arch;
}
// Lookup whether lib32 paths should be used.
if (this->Makefile->PlatformIs32Bit() &&
this->Makefile->GetState()->GetGlobalPropertyAsBool(
"FIND_LIBRARY_USE_LIB32_PATHS")) {
this->UseLib32Paths = true;
}
// Lookup whether lib64 paths should be used.
if (this->Makefile->PlatformIs64Bit() &&
this->Makefile->GetState()->GetGlobalPropertyAsBool(
"FIND_LIBRARY_USE_LIB64_PATHS")) {
this->UseLib64Paths = true;
}
// Lookup whether libx32 paths should be used.
if (this->Makefile->PlatformIsx32() &&
this->Makefile->GetState()->GetGlobalPropertyAsBool(
"FIND_LIBRARY_USE_LIBX32_PATHS")) {
this->UseLibx32Paths = true;
}
// Check if User Package Registry should be disabled
if (this->Makefile->IsOn("CMAKE_FIND_PACKAGE_NO_PACKAGE_REGISTRY")) {
this->NoUserRegistry = true;
}
// Check if System Package Registry should be disabled
if (this->Makefile->IsOn("CMAKE_FIND_PACKAGE_NO_SYSTEM_PACKAGE_REGISTRY")) {
this->NoSystemRegistry = true;
}
// Check whether we should resolve symlinks when finding packages
if (this->Makefile->IsOn("CMAKE_FIND_PACKAGE_RESOLVE_SYMLINKS")) {
this->UseRealPath = true;
}
// Check if Sorting should be enabled
if (const char* so =
this->Makefile->GetDefinition("CMAKE_FIND_PACKAGE_SORT_ORDER")) {
if (strcmp(so, "NAME") == 0) {
this->SortOrder = Name_order;
} else if (strcmp(so, "NATURAL") == 0) {
this->SortOrder = Natural;
} else {
this->SortOrder = None;
}
}
if (const char* sd =
this->Makefile->GetDefinition("CMAKE_FIND_PACKAGE_SORT_DIRECTION")) {
this->SortDirection = strcmp(sd, "ASC") == 0 ? Asc : Dec;
}
// Find the current root path mode.
this->SelectDefaultRootPathMode();
// Find the current bundle/framework search policy.
this->SelectDefaultMacMode();
// Record options.
this->Name = args[0];
std::string components;
const char* components_sep = "";
std::set<std::string> requiredComponents;
std::set<std::string> optionalComponents;
// Always search directly in a generated path.
this->SearchPathSuffixes.emplace_back();
// Parse the arguments.
enum Doing
{
DoingNone,
DoingComponents,
DoingOptionalComponents,
DoingNames,
DoingPaths,
DoingPathSuffixes,
DoingConfigs,
DoingHints
};
Doing doing = DoingNone;
cmsys::RegularExpression version("^[0-9.]+$");
bool haveVersion = false;
std::set<unsigned int> configArgs;
std::set<unsigned int> moduleArgs;
for (unsigned int i = 1; i < args.size(); ++i) {
if (args[i] == "QUIET") {
this->Quiet = true;
doing = DoingNone;
} else if (args[i] == "EXACT") {
this->VersionExact = true;
doing = DoingNone;
} else if (args[i] == "MODULE") {
moduleArgs.insert(i);
doing = DoingNone;
} else if (args[i] == "CONFIG") {
configArgs.insert(i);
doing = DoingNone;
} else if (args[i] == "NO_MODULE") {
configArgs.insert(i);
doing = DoingNone;
} else if (args[i] == "REQUIRED") {
this->Required = true;
doing = DoingComponents;
} else if (args[i] == "COMPONENTS") {
doing = DoingComponents;
} else if (args[i] == "OPTIONAL_COMPONENTS") {
doing = DoingOptionalComponents;
} else if (args[i] == "NAMES") {
configArgs.insert(i);
doing = DoingNames;
} else if (args[i] == "PATHS") {
configArgs.insert(i);
doing = DoingPaths;
} else if (args[i] == "HINTS") {
configArgs.insert(i);
doing = DoingHints;
} else if (args[i] == "PATH_SUFFIXES") {
configArgs.insert(i);
doing = DoingPathSuffixes;
} else if (args[i] == "CONFIGS") {
configArgs.insert(i);
doing = DoingConfigs;
} else if (args[i] == "NO_POLICY_SCOPE") {
this->PolicyScope = false;
doing = DoingNone;
} else if (args[i] == "NO_CMAKE_PACKAGE_REGISTRY") {
this->NoUserRegistry = true;
configArgs.insert(i);
doing = DoingNone;
} else if (args[i] == "NO_CMAKE_SYSTEM_PACKAGE_REGISTRY") {
this->NoSystemRegistry = true;
configArgs.insert(i);
doing = DoingNone;
} else if (args[i] == "NO_CMAKE_BUILDS_PATH") {
// Ignore legacy option.
configArgs.insert(i);
doing = DoingNone;
} else if (this->CheckCommonArgument(args[i])) {
configArgs.insert(i);
doing = DoingNone;
} else if ((doing == DoingComponents) ||
(doing == DoingOptionalComponents)) {
// Set a variable telling the find script whether this component
// is required.
const char* isRequired = "1";
if (doing == DoingOptionalComponents) {
isRequired = "0";
optionalComponents.insert(args[i]);
} else {
requiredComponents.insert(args[i]);
}
std::string req_var = this->Name + "_FIND_REQUIRED_" + args[i];
this->AddFindDefinition(req_var, isRequired);
// Append to the list of required components.
components += components_sep;
components += args[i];
components_sep = ";";
} else if (doing == DoingNames) {
this->Names.push_back(args[i]);
} else if (doing == DoingPaths) {
this->UserGuessArgs.push_back(args[i]);
} else if (doing == DoingHints) {
this->UserHintsArgs.push_back(args[i]);
} else if (doing == DoingPathSuffixes) {
this->AddPathSuffix(args[i]);
} else if (doing == DoingConfigs) {
if (args[i].find_first_of(":/\\") != std::string::npos ||
cmSystemTools::GetFilenameLastExtension(args[i]) != ".cmake") {
std::ostringstream e;
e << "given CONFIGS option followed by invalid file name \"" << args[i]
<< "\". The names given must be file names without "
<< "a path and with a \".cmake\" extension.";
this->SetError(e.str());
return false;
}
this->Configs.push_back(args[i]);
} else if (!haveVersion && version.find(args[i])) {
haveVersion = true;
this->Version = args[i];
} else {
std::ostringstream e;
e << "called with invalid argument \"" << args[i] << "\"";
this->SetError(e.str());
return false;
}
}
std::vector<std::string> doubledComponents;
std::set_intersection(requiredComponents.begin(), requiredComponents.end(),
optionalComponents.begin(), optionalComponents.end(),
std::back_inserter(doubledComponents));
if (!doubledComponents.empty()) {
std::ostringstream e;
e << "called with components that are both required and optional:\n";
e << cmWrap(" ", doubledComponents, "", "\n") << "\n";
this->SetError(e.str());
return false;
}
// Maybe choose one mode exclusively.
this->UseFindModules = configArgs.empty();
this->UseConfigFiles = moduleArgs.empty();
if (!this->UseFindModules && !this->UseConfigFiles) {
std::ostringstream e;
e << "given options exclusive to Module mode:\n";
for (unsigned int si : moduleArgs) {
e << " " << args[si] << "\n";
}
e << "and options exclusive to Config mode:\n";
for (unsigned int si : configArgs) {
e << " " << args[si] << "\n";
}
e << "The options are incompatible.";
this->SetError(e.str());
return false;
}
// Ignore EXACT with no version.
if (this->Version.empty() && this->VersionExact) {
this->VersionExact = false;
this->Makefile->IssueMessage(
MessageType::AUTHOR_WARNING,
"Ignoring EXACT since no version is requested.");
}
if (this->Version.empty() || components.empty()) {
// Check whether we are recursing inside "Find<name>.cmake" within
// another find_package(<name>) call.
std::string mod = this->Name;
mod += "_FIND_MODULE";
if (this->Makefile->IsOn(mod)) {
if (this->Version.empty()) {
// Get version information from the outer call if necessary.
// Requested version string.
std::string ver = this->Name;
ver += "_FIND_VERSION";
this->Version = this->Makefile->GetSafeDefinition(ver);
// Whether an exact version is required.
std::string exact = this->Name;
exact += "_FIND_VERSION_EXACT";
this->VersionExact = this->Makefile->IsOn(exact);
}
if (components.empty()) {
std::string components_var = this->Name + "_FIND_COMPONENTS";
components = this->Makefile->GetSafeDefinition(components_var);
}
}
}
if (!this->Version.empty()) {
// Try to parse the version number and store the results that were
// successfully parsed.
unsigned int parsed_major;
unsigned int parsed_minor;
unsigned int parsed_patch;
unsigned int parsed_tweak;
this->VersionCount =
sscanf(this->Version.c_str(), "%u.%u.%u.%u", &parsed_major,
&parsed_minor, &parsed_patch, &parsed_tweak);
switch (this->VersionCount) {
case 4:
this->VersionTweak = parsed_tweak;
CM_FALLTHROUGH;
case 3:
this->VersionPatch = parsed_patch;
CM_FALLTHROUGH;
case 2:
this->VersionMinor = parsed_minor;
CM_FALLTHROUGH;
case 1:
this->VersionMajor = parsed_major;
CM_FALLTHROUGH;
default:
break;
}
}
std::string disableFindPackageVar = "CMAKE_DISABLE_FIND_PACKAGE_";
disableFindPackageVar += this->Name;
if (this->Makefile->IsOn(disableFindPackageVar)) {
if (this->Required) {
std::ostringstream e;
e << "for module " << this->Name << " called with REQUIRED, but "
<< disableFindPackageVar
<< " is enabled. A REQUIRED package cannot be disabled.";
this->SetError(e.str());
return false;
}
return true;
}
{
// Allocate a PACKAGE_ROOT_PATH for the current find_package call.
this->Makefile->FindPackageRootPathStack.emplace_back();
std::vector<std::string>& rootPaths =
this->Makefile->FindPackageRootPathStack.back();
// Add root paths from <PackageName>_ROOT CMake and environment variables,
// subject to CMP0074.
switch (this->Makefile->GetPolicyStatus(cmPolicies::CMP0074)) {
case cmPolicies::WARN:
this->Makefile->MaybeWarnCMP0074(this->Name);
CM_FALLTHROUGH;
case cmPolicies::OLD:
// OLD behavior is to ignore the <pkg>_ROOT variables.
break;
case cmPolicies::REQUIRED_IF_USED:
case cmPolicies::REQUIRED_ALWAYS:
this->Makefile->IssueMessage(
MessageType::FATAL_ERROR,
cmPolicies::GetRequiredPolicyError(cmPolicies::CMP0074));
break;
case cmPolicies::NEW: {
// NEW behavior is to honor the <pkg>_ROOT variables.
std::string const rootVar = this->Name + "_ROOT";
if (const char* pkgRoot = this->Makefile->GetDefinition(rootVar)) {
cmSystemTools::ExpandListArgument(pkgRoot, rootPaths, false);
}
cmSystemTools::GetPath(rootPaths, rootVar.c_str());
} break;
}
}
this->SetModuleVariables(components);
// See if there is a Find<PackageName>.cmake module.
bool loadedPackage = false;
if (this->Makefile->IsOn("CMAKE_FIND_PACKAGE_PREFER_CONFIG")) {
if (this->UseConfigFiles && this->FindPackageUsingConfigMode()) {
loadedPackage = true;
} else {
if (this->FindPackageUsingModuleMode()) {
loadedPackage = true;
} else {
// The package was not loaded. Report errors.
if (HandlePackageMode(HandlePackageModeType::Module)) {
loadedPackage = true;
}
}
}
} else {
if (this->UseFindModules && this->FindPackageUsingModuleMode()) {
loadedPackage = true;
} else {
// Handle CMAKE_FIND_PACKAGE_WARN_NO_MODULE (warn when CONFIG mode is
// implicitly assumed)
if (this->UseFindModules && this->UseConfigFiles &&
this->Makefile->IsOn("CMAKE_FIND_PACKAGE_WARN_NO_MODULE")) {
std::ostringstream aw;
if (this->RequiredCMakeVersion >= CMake_VERSION_ENCODE(2, 8, 8)) {
aw << "find_package called without either MODULE or CONFIG option "
"and "
"no Find"
<< this->Name
<< ".cmake module is in CMAKE_MODULE_PATH. "
"Add MODULE to exclusively request Module mode and fail if "
"Find"
<< this->Name
<< ".cmake is missing. "
"Add CONFIG to exclusively request Config mode and search for "
"a "
"package configuration file provided by "
<< this->Name << " (" << this->Name << "Config.cmake or "
<< cmSystemTools::LowerCase(this->Name) << "-config.cmake). ";
} else {
aw << "find_package called without NO_MODULE option and no "
"Find"
<< this->Name
<< ".cmake module is in CMAKE_MODULE_PATH. "
"Add NO_MODULE to exclusively request Config mode and search "
"for a "
"package configuration file provided by "
<< this->Name << " (" << this->Name << "Config.cmake or "
<< cmSystemTools::LowerCase(this->Name)
<< "-config.cmake). "
"Otherwise make Find"
<< this->Name
<< ".cmake available in "
"CMAKE_MODULE_PATH.";
}
aw << "\n"
"(Variable CMAKE_FIND_PACKAGE_WARN_NO_MODULE enabled this "
"warning.)";
this->Makefile->IssueMessage(MessageType::AUTHOR_WARNING, aw.str());
}
if (this->FindPackageUsingConfigMode()) {
loadedPackage = true;
}
}
}
this->AppendSuccessInformation();
return loadedPackage;
}
bool cmFindPackageCommand::FindPackageUsingModuleMode()
{
bool foundModule = false;
if (!this->FindModule(foundModule)) {
return false;
}
return foundModule;
}
bool cmFindPackageCommand::FindPackageUsingConfigMode()
{
this->Variable = this->Name;
this->Variable += "_DIR";
// Add the default name.
if (this->Names.empty()) {
this->Names.push_back(this->Name);
}
// Add the default configs.
if (this->Configs.empty()) {
for (std::string const& n : this->Names) {
std::string config = n;
config += "Config.cmake";
this->Configs.push_back(config);
config = cmSystemTools::LowerCase(n);
config += "-config.cmake";
this->Configs.push_back(std::move(config));
}
}
// get igonored paths from vars and reroot them.
std::vector<std::string> ignored;
this->GetIgnoredPaths(ignored);
this->RerootPaths(ignored);
// Construct a set of ignored paths
this->IgnoredPaths.clear();
this->IgnoredPaths.insert(ignored.begin(), ignored.end());
// Find and load the package.
return this->HandlePackageMode(HandlePackageModeType::Config);
}
void cmFindPackageCommand::SetModuleVariables(const std::string& components)
{
this->AddFindDefinition("CMAKE_FIND_PACKAGE_NAME", this->Name.c_str());
// Store the list of components.
std::string components_var = this->Name + "_FIND_COMPONENTS";
this->AddFindDefinition(components_var, components.c_str());
if (this->Quiet) {
// Tell the module that is about to be read that it should find
// quietly.
std::string quietly = this->Name;
quietly += "_FIND_QUIETLY";
this->AddFindDefinition(quietly, "1");
}
if (this->Required) {
// Tell the module that is about to be read that it should report
// a fatal error if the package is not found.
std::string req = this->Name;
req += "_FIND_REQUIRED";
this->AddFindDefinition(req, "1");
}
if (!this->Version.empty()) {
// Tell the module that is about to be read what version of the
// package has been requested.
std::string ver = this->Name;
ver += "_FIND_VERSION";
this->AddFindDefinition(ver, this->Version.c_str());
char buf[64];
sprintf(buf, "%u", this->VersionMajor);
this->AddFindDefinition(ver + "_MAJOR", buf);
sprintf(buf, "%u", this->VersionMinor);
this->AddFindDefinition(ver + "_MINOR", buf);
sprintf(buf, "%u", this->VersionPatch);
this->AddFindDefinition(ver + "_PATCH", buf);
sprintf(buf, "%u", this->VersionTweak);
this->AddFindDefinition(ver + "_TWEAK", buf);
sprintf(buf, "%u", this->VersionCount);
this->AddFindDefinition(ver + "_COUNT", buf);
// Tell the module whether an exact version has been requested.
std::string exact = this->Name;
exact += "_FIND_VERSION_EXACT";
this->AddFindDefinition(exact, this->VersionExact ? "1" : "0");
}
}
void cmFindPackageCommand::AddFindDefinition(const std::string& var,
const char* val)
{
if (const char* old = this->Makefile->GetDefinition(var)) {
this->OriginalDefs[var].exists = true;
this->OriginalDefs[var].value = old;
} else {
this->OriginalDefs[var].exists = false;
}
this->Makefile->AddDefinition(var, val);
}
void cmFindPackageCommand::RestoreFindDefinitions()
{
for (auto const& i : this->OriginalDefs) {
OriginalDef const& od = i.second;
if (od.exists) {
this->Makefile->AddDefinition(i.first, od.value.c_str());
} else {
this->Makefile->RemoveDefinition(i.first);
}
}
}
bool cmFindPackageCommand::FindModule(bool& found)
{
std::string module = "Find";
module += this->Name;
module += ".cmake";
bool system = false;
std::string mfile = this->Makefile->GetModulesFile(module, system);
if (!mfile.empty()) {
if (system) {
auto it = this->DeprecatedFindModules.find(this->Name);
if (it != this->DeprecatedFindModules.end()) {
cmPolicies::PolicyStatus status =
this->Makefile->GetPolicyStatus(it->second);
switch (status) {
case cmPolicies::WARN: {
std::ostringstream e;
e << cmPolicies::GetPolicyWarning(it->second) << "\n";
this->Makefile->IssueMessage(MessageType::AUTHOR_WARNING, e.str());
CM_FALLTHROUGH;
}
case cmPolicies::OLD:
break;
case cmPolicies::REQUIRED_IF_USED:
case cmPolicies::REQUIRED_ALWAYS:
case cmPolicies::NEW:
return true;
}
}
}
// Load the module we found, and set "<name>_FIND_MODULE" to true
// while inside it.
found = true;
std::string var = this->Name;
var += "_FIND_MODULE";
this->Makefile->AddDefinition(var, "1");
bool result = this->ReadListFile(mfile, DoPolicyScope);
this->Makefile->RemoveDefinition(var);
return result;
}
return true;
}
bool cmFindPackageCommand::HandlePackageMode(
HandlePackageModeType handlePackageModeType)
{
this->ConsideredConfigs.clear();
// Support old capitalization behavior.
std::string upperDir = cmSystemTools::UpperCase(this->Name);
std::string upperFound = cmSystemTools::UpperCase(this->Name);
upperDir += "_DIR";
upperFound += "_FOUND";
// Try to find the config file.
const char* def = this->Makefile->GetDefinition(this->Variable);
// Try to load the config file if the directory is known
bool fileFound = false;
if (this->UseConfigFiles) {
if (!cmSystemTools::IsOff(def)) {
// Get the directory from the variable value.
std::string dir = def;
cmSystemTools::ConvertToUnixSlashes(dir);
// Treat relative paths with respect to the current source dir.
if (!cmSystemTools::FileIsFullPath(dir)) {
dir = "/" + dir;
dir = this->Makefile->GetCurrentSourceDirectory() + dir;
}
// The file location was cached. Look for the correct file.
std::string file;
if (this->FindConfigFile(dir, file)) {
this->FileFound = file;
fileFound = true;
}
def = this->Makefile->GetDefinition(this->Variable);
}
// Search for the config file if it is not already found.
if (cmSystemTools::IsOff(def) || !fileFound) {
fileFound = this->FindConfig();
}
// Sanity check.
if (fileFound && this->FileFound.empty()) {
this->Makefile->IssueMessage(
MessageType::INTERNAL_ERROR,
"fileFound is true but FileFound is empty!");
fileFound = false;
}
}
std::string foundVar = this->Name;
foundVar += "_FOUND";
std::string notFoundMessageVar = this->Name;
notFoundMessageVar += "_NOT_FOUND_MESSAGE";
std::string notFoundMessage;
// If the directory for the config file was found, try to read the file.
bool result = true;
bool found = false;
bool configFileSetFOUNDFalse = false;
if (fileFound) {
if (this->Makefile->IsDefinitionSet(foundVar) &&
!this->Makefile->IsOn(foundVar)) {
// by removing Foo_FOUND here if it is FALSE, we don't really change
// the situation for the Config file which is about to be included,
// but we make it possible to detect later on whether the Config file
// has set Foo_FOUND to FALSE itself:
this->Makefile->RemoveDefinition(foundVar);
}
this->Makefile->RemoveDefinition(notFoundMessageVar);
// Set the version variables before loading the config file.
// It may override them.
this->StoreVersionFound();
// Parse the configuration file.
if (this->ReadListFile(this->FileFound, DoPolicyScope)) {
// The package has been found.
found = true;
// Check whether the Config file has set Foo_FOUND to FALSE:
if (this->Makefile->IsDefinitionSet(foundVar) &&
!this->Makefile->IsOn(foundVar)) {
// we get here if the Config file has set Foo_FOUND actively to FALSE
found = false;
configFileSetFOUNDFalse = true;
notFoundMessage =
this->Makefile->GetSafeDefinition(notFoundMessageVar);
}
} else {
// The configuration file is invalid.
result = false;
}
}
if (this->UseFindModules && !found &&
handlePackageModeType == HandlePackageModeType::Config &&
this->Makefile->IsOn("CMAKE_FIND_PACKAGE_PREFER_CONFIG")) {
// Config mode failed. Allow Module case.
result = false;
}
// package not found
if (result && !found) {
// warn if package required or neither quiet nor in config mode
if (this->Required ||
!(this->Quiet ||
(this->UseConfigFiles && !this->UseFindModules &&
this->ConsideredConfigs.empty()))) {
// The variable is not set.
std::ostringstream e;
std::ostringstream aw;
if (configFileSetFOUNDFalse) {
/* clang-format off */
e << "Found package configuration file:\n"
" " << this->FileFound << "\n"
"but it set " << foundVar << " to FALSE so package \"" <<
this->Name << "\" is considered to be NOT FOUND.";
/* clang-format on */
if (!notFoundMessage.empty()) {
e << " Reason given by package: \n" << notFoundMessage << "\n";
}
}
// If there are files in ConsideredConfigs, it means that FooConfig.cmake
// have been found, but they didn't have appropriate versions.
else if (!this->ConsideredConfigs.empty()) {
std::vector<ConfigFileInfo>::const_iterator duplicate_end =
cmRemoveDuplicates(this->ConsideredConfigs);
e << "Could not find a configuration file for package \"" << this->Name
<< "\" that "
<< (this->VersionExact ? "exactly matches" : "is compatible with")
<< " requested version \"" << this->Version << "\".\n"
<< "The following configuration files were considered but not "
"accepted:\n";
for (ConfigFileInfo const& info :
cmMakeRange(this->ConsideredConfigs.cbegin(), duplicate_end)) {
e << " " << info.filename << ", version: " << info.version << "\n";
}
} else {
std::string requestedVersionString;
if (!this->Version.empty()) {
requestedVersionString = " (requested version ";
requestedVersionString += this->Version;
requestedVersionString += ")";
}
if (this->UseConfigFiles) {
if (this->UseFindModules) {
e << "By not providing \"Find" << this->Name
<< ".cmake\" in "
"CMAKE_MODULE_PATH this project has asked CMake to find a "
"package configuration file provided by \""
<< this->Name
<< "\", "
"but CMake did not find one.\n";
}
if (this->Configs.size() == 1) {
e << "Could not find a package configuration file named \""
<< this->Configs[0] << "\" provided by package \"" << this->Name
<< "\"" << requestedVersionString << ".\n";
} else {
e << "Could not find a package configuration file provided by \""
<< this->Name << "\"" << requestedVersionString
<< " with any of the following names:\n"
<< cmWrap(" ", this->Configs, "", "\n") << "\n";
}
e << "Add the installation prefix of \"" << this->Name
<< "\" to "
"CMAKE_PREFIX_PATH or set \""
<< this->Variable
<< "\" to a "
"directory containing one of the above files. "
"If \""
<< this->Name
<< "\" provides a separate development "
"package or SDK, be sure it has been installed.";
} else // if(!this->UseFindModules && !this->UseConfigFiles)
{
e << "No \"Find" << this->Name << ".cmake\" found in "
<< "CMAKE_MODULE_PATH.";
aw
<< "Find" << this->Name
<< ".cmake must either be part of this "
"project itself, in this case adjust CMAKE_MODULE_PATH so that "
"it points to the correct location inside its source tree.\n"
"Or it must be installed by a package which has already been "
"found via find_package(). In this case make sure that "
"package has indeed been found and adjust CMAKE_MODULE_PATH to "
"contain the location where that package has installed "
"Find"
<< this->Name
<< ".cmake. This must be a location "
"provided by that package. This error in general means that "
"the buildsystem of this project is relying on a Find-module "
"without ensuring that it is actually available.\n";
}
}
this->Makefile->IssueMessage(this->Required ? MessageType::FATAL_ERROR
: MessageType::WARNING,
e.str());
if (this->Required) {
cmSystemTools::SetFatalErrorOccured();
}
if (!aw.str().empty()) {
this->Makefile->IssueMessage(MessageType::AUTHOR_WARNING, aw.str());
}
}
// output result if in config mode but not in quiet mode
else if (!this->Quiet) {
std::ostringstream aw;
aw << "Could NOT find " << this->Name << " (missing: " << this->Name
<< "_DIR)";
this->Makefile->DisplayStatus(aw.str(), -1);
}
}
// Set a variable marking whether the package was found.
this->Makefile->AddDefinition(foundVar, found ? "1" : "0");
// Set a variable naming the configuration file that was found.
std::string fileVar = this->Name;
fileVar += "_CONFIG";
if (found) {
this->Makefile->AddDefinition(fileVar, this->FileFound.c_str());
} else {
this->Makefile->RemoveDefinition(fileVar);
}
std::string consideredConfigsVar = this->Name;
consideredConfigsVar += "_CONSIDERED_CONFIGS";
std::string consideredVersionsVar = this->Name;
consideredVersionsVar += "_CONSIDERED_VERSIONS";
std::string consideredConfigFiles;
std::string consideredVersions;
const char* sep = "";
for (ConfigFileInfo const& i : this->ConsideredConfigs) {
consideredConfigFiles += sep;
consideredVersions += sep;
consideredConfigFiles += i.filename;
consideredVersions += i.version;
sep = ";";
}
this->Makefile->AddDefinition(consideredConfigsVar,
consideredConfigFiles.c_str());
this->Makefile->AddDefinition(consideredVersionsVar,
consideredVersions.c_str());
return result;
}
bool cmFindPackageCommand::FindConfig()
{
// Compute the set of search prefixes.
this->ComputePrefixes();
// Look for the project's configuration file.
bool found = false;
// Search for frameworks.
if (!found && (this->SearchFrameworkFirst || this->SearchFrameworkOnly)) {
found = this->FindFrameworkConfig();
}
// Search for apps.
if (!found && (this->SearchAppBundleFirst || this->SearchAppBundleOnly)) {
found = this->FindAppBundleConfig();
}
// Search prefixes.
if (!found && !(this->SearchFrameworkOnly || this->SearchAppBundleOnly)) {
found = this->FindPrefixedConfig();
}
// Search for frameworks.
if (!found && this->SearchFrameworkLast) {
found = this->FindFrameworkConfig();
}
// Search for apps.
if (!found && this->SearchAppBundleLast) {
found = this->FindAppBundleConfig();
}
// Store the entry in the cache so it can be set by the user.
std::string init;
if (found) {
init = cmSystemTools::GetFilenamePath(this->FileFound);
} else {
init = this->Variable + "-NOTFOUND";
}
std::string help =
"The directory containing a CMake configuration file for ";
help += this->Name;
help += ".";
// We force the value since we do not get here if it was already set.
this->Makefile->AddCacheDefinition(this->Variable, init.c_str(),
help.c_str(), cmStateEnums::PATH, true);
return found;
}
bool cmFindPackageCommand::FindPrefixedConfig()
{
std::vector<std::string> const& prefixes = this->SearchPaths;
for (std::string const& p : prefixes) {
if (this->SearchPrefix(p)) {
return true;
}
}
return false;
}
bool cmFindPackageCommand::FindFrameworkConfig()
{
std::vector<std::string> const& prefixes = this->SearchPaths;
for (std::string const& p : prefixes) {
if (this->SearchFrameworkPrefix(p)) {
return true;
}
}
return false;
}
bool cmFindPackageCommand::FindAppBundleConfig()
{
std::vector<std::string> const& prefixes = this->SearchPaths;
for (std::string const& p : prefixes) {
if (this->SearchAppBundlePrefix(p)) {
return true;
}
}
return false;
}
bool cmFindPackageCommand::ReadListFile(const std::string& f,
PolicyScopeRule psr)
{
const bool noPolicyScope = !this->PolicyScope || psr == NoPolicyScope;
if (this->Makefile->ReadDependentFile(f, noPolicyScope)) {
return true;
}
std::string e = "Error reading CMake code from \"";
e += f;
e += "\".";
this->SetError(e);
return false;
}
void cmFindPackageCommand::AppendToFoundProperty(bool found)
{
std::vector<std::string> foundContents;
const char* foundProp =
this->Makefile->GetState()->GetGlobalProperty("PACKAGES_FOUND");
if (foundProp && *foundProp) {
std::string tmp = foundProp;
cmSystemTools::ExpandListArgument(tmp, foundContents, false);
std::vector<std::string>::iterator nameIt =
std::find(foundContents.begin(), foundContents.end(), this->Name);
if (nameIt != foundContents.end()) {
foundContents.erase(nameIt);
}
}
std::vector<std::string> notFoundContents;
const char* notFoundProp =
this->Makefile->GetState()->GetGlobalProperty("PACKAGES_NOT_FOUND");
if (notFoundProp && *notFoundProp) {
std::string tmp = notFoundProp;
cmSystemTools::ExpandListArgument(tmp, notFoundContents, false);
std::vector<std::string>::iterator nameIt =
std::find(notFoundContents.begin(), notFoundContents.end(), this->Name);
if (nameIt != notFoundContents.end()) {
notFoundContents.erase(nameIt);
}
}
if (found) {
foundContents.push_back(this->Name);
} else {
notFoundContents.push_back(this->Name);
}
std::string tmp = cmJoin(foundContents, ";");
this->Makefile->GetState()->SetGlobalProperty("PACKAGES_FOUND", tmp.c_str());
tmp = cmJoin(notFoundContents, ";");
this->Makefile->GetState()->SetGlobalProperty("PACKAGES_NOT_FOUND",
tmp.c_str());
}
void cmFindPackageCommand::AppendSuccessInformation()
{
{
std::string transitivePropName = "_CMAKE_";
transitivePropName += this->Name + "_TRANSITIVE_DEPENDENCY";
this->Makefile->GetState()->SetGlobalProperty(transitivePropName, "False");
}
std::string found = this->Name;
found += "_FOUND";
std::string upperFound = cmSystemTools::UpperCase(found);
const char* upperResult = this->Makefile->GetDefinition(upperFound);
const char* result = this->Makefile->GetDefinition(found);
bool packageFound =
((cmSystemTools::IsOn(result)) || (cmSystemTools::IsOn(upperResult)));
this->AppendToFoundProperty(packageFound);
// Record whether the find was quiet or not, so this can be used
// e.g. in FeatureSummary.cmake
std::string quietInfoPropName = "_CMAKE_";
quietInfoPropName += this->Name;
quietInfoPropName += "_QUIET";
this->Makefile->GetState()->SetGlobalProperty(
quietInfoPropName, this->Quiet ? "TRUE" : "FALSE");
// set a global property to record the required version of this package
std::string versionInfoPropName = "_CMAKE_";
versionInfoPropName += this->Name;
versionInfoPropName += "_REQUIRED_VERSION";
std::string versionInfo;
if (!this->Version.empty()) {
versionInfo = this->VersionExact ? "==" : ">=";
versionInfo += " ";
versionInfo += this->Version;
}
this->Makefile->GetState()->SetGlobalProperty(versionInfoPropName,
versionInfo.c_str());
if (this->Required) {
std::string requiredInfoPropName = "_CMAKE_";
requiredInfoPropName += this->Name;
requiredInfoPropName += "_TYPE";
this->Makefile->GetState()->SetGlobalProperty(requiredInfoPropName,
"REQUIRED");
}
// Restore original state of "_FIND_" variables we set.
this->RestoreFindDefinitions();
// Pop the package stack
this->Makefile->FindPackageRootPathStack.pop_back();
}
void cmFindPackageCommand::ComputePrefixes()
{
if (!this->NoDefaultPath) {
if (!this->NoPackageRootPath) {
this->FillPrefixesPackageRoot();
}
if (!this->NoCMakePath) {
this->FillPrefixesCMakeVariable();
}
if (!this->NoCMakeEnvironmentPath) {
this->FillPrefixesCMakeEnvironment();
}
}
this->FillPrefixesUserHints();
if (!this->NoDefaultPath) {
if (!this->NoSystemEnvironmentPath) {
this->FillPrefixesSystemEnvironment();
}
if (!this->NoUserRegistry) {
this->FillPrefixesUserRegistry();
}
if (!this->NoCMakeSystemPath) {
this->FillPrefixesCMakeSystemVariable();
}
if (!this->NoSystemRegistry) {
this->FillPrefixesSystemRegistry();
}
}
this->FillPrefixesUserGuess();
this->ComputeFinalPaths();
}
void cmFindPackageCommand::FillPrefixesPackageRoot()
{
cmSearchPath& paths = this->LabeledPaths[PathLabel::PackageRoot];
// Add the PACKAGE_ROOT_PATH from each enclosing find_package call.
for (std::deque<std::vector<std::string>>::const_reverse_iterator pkgPaths =
this->Makefile->FindPackageRootPathStack.rbegin();
pkgPaths != this->Makefile->FindPackageRootPathStack.rend();
++pkgPaths) {
for (std::string const& path : *pkgPaths) {
paths.AddPath(path);
}
}
}
void cmFindPackageCommand::FillPrefixesCMakeEnvironment()
{
cmSearchPath& paths = this->LabeledPaths[PathLabel::CMakeEnvironment];
// Check the environment variable with the same name as the cache
// entry.
paths.AddEnvPath(this->Variable);
// And now the general CMake environment variables
paths.AddEnvPath("CMAKE_PREFIX_PATH");
paths.AddEnvPath("CMAKE_FRAMEWORK_PATH");
paths.AddEnvPath("CMAKE_APPBUNDLE_PATH");
}
void cmFindPackageCommand::FillPrefixesCMakeVariable()
{
cmSearchPath& paths = this->LabeledPaths[PathLabel::CMake];
paths.AddCMakePath("CMAKE_PREFIX_PATH");
paths.AddCMakePath("CMAKE_FRAMEWORK_PATH");
paths.AddCMakePath("CMAKE_APPBUNDLE_PATH");
}
void cmFindPackageCommand::FillPrefixesSystemEnvironment()
{
cmSearchPath& paths = this->LabeledPaths[PathLabel::SystemEnvironment];
// Use the system search path to generate prefixes.
// Relative paths are interpreted with respect to the current
// working directory.
std::vector<std::string> tmp;
cmSystemTools::GetPath(tmp);
for (std::string const& i : tmp) {
// If the path is a PREFIX/bin case then add its parent instead.
if ((cmHasLiteralSuffix(i, "/bin")) || (cmHasLiteralSuffix(i, "/sbin"))) {
paths.AddPath(cmSystemTools::GetFilenamePath(i));
} else {
paths.AddPath(i);
}
}
}
void cmFindPackageCommand::FillPrefixesUserRegistry()
{
#if defined(_WIN32) && !defined(__CYGWIN__)
this->LoadPackageRegistryWinUser();
#elif defined(__HAIKU__)
char dir[B_PATH_NAME_LENGTH];
if (find_directory(B_USER_SETTINGS_DIRECTORY, -1, false, dir, sizeof(dir)) ==
B_OK) {
std::string fname = dir;
fname += "/cmake/packages/";
fname += Name;
this->LoadPackageRegistryDir(fname,
this->LabeledPaths[PathLabel::UserRegistry]);
}
#else
std::string dir;
if (cmSystemTools::GetEnv("HOME", dir)) {
dir += "/.cmake/packages/";
dir += this->Name;
this->LoadPackageRegistryDir(dir,
this->LabeledPaths[PathLabel::UserRegistry]);
}
#endif
}
void cmFindPackageCommand::FillPrefixesSystemRegistry()
{
if (this->NoSystemRegistry || this->NoDefaultPath) {
return;
}
#if defined(_WIN32) && !defined(__CYGWIN__)
this->LoadPackageRegistryWinSystem();
#endif
}
#if defined(_WIN32) && !defined(__CYGWIN__)
# include <windows.h>
// http://msdn.microsoft.com/en-us/library/aa384253%28v=vs.85%29.aspx
# if !defined(KEY_WOW64_32KEY)
# define KEY_WOW64_32KEY 0x0200
# endif
# if !defined(KEY_WOW64_64KEY)
# define KEY_WOW64_64KEY 0x0100
# endif
void cmFindPackageCommand::LoadPackageRegistryWinUser()
{
// HKEY_CURRENT_USER\\Software shares 32-bit and 64-bit views.
this->LoadPackageRegistryWin(true, 0,
this->LabeledPaths[PathLabel::UserRegistry]);
}
void cmFindPackageCommand::LoadPackageRegistryWinSystem()
{
cmSearchPath& paths = this->LabeledPaths[PathLabel::SystemRegistry];
// HKEY_LOCAL_MACHINE\\SOFTWARE has separate 32-bit and 64-bit views.
// Prefer the target platform view first.
if (this->Makefile->PlatformIs64Bit()) {
this->LoadPackageRegistryWin(false, KEY_WOW64_64KEY, paths);
this->LoadPackageRegistryWin(false, KEY_WOW64_32KEY, paths);
} else {
this->LoadPackageRegistryWin(false, KEY_WOW64_32KEY, paths);
this->LoadPackageRegistryWin(false, KEY_WOW64_64KEY, paths);
}
}
void cmFindPackageCommand::LoadPackageRegistryWin(bool user, unsigned int view,
cmSearchPath& outPaths)
{
std::wstring key = L"Software\\Kitware\\CMake\\Packages\\";
key += cmsys::Encoding::ToWide(this->Name);
std::set<std::wstring> bad;
HKEY hKey;
if (RegOpenKeyExW(user ? HKEY_CURRENT_USER : HKEY_LOCAL_MACHINE, key.c_str(),
0, KEY_QUERY_VALUE | view, &hKey) == ERROR_SUCCESS) {
DWORD valueType = REG_NONE;
wchar_t name[16383]; // RegEnumValue docs limit name to 32767 _bytes_
std::vector<wchar_t> data(512);
bool done = false;
DWORD index = 0;
while (!done) {
DWORD nameSize = static_cast<DWORD>(sizeof(name));
DWORD dataSize = static_cast<DWORD>(data.size() * sizeof(data[0]));
switch (RegEnumValueW(hKey, index, name, &nameSize, 0, &valueType,
(BYTE*)&data[0], &dataSize)) {
case ERROR_SUCCESS:
++index;
if (valueType == REG_SZ) {
data[dataSize] = 0;
if (!this->CheckPackageRegistryEntry(
cmsys::Encoding::ToNarrow(&data[0]), outPaths)) {
// The entry is invalid.
bad.insert(name);
}
}
break;
case ERROR_MORE_DATA:
data.resize((dataSize + sizeof(data[0]) - 1) / sizeof(data[0]));
break;
case ERROR_NO_MORE_ITEMS:
default:
done = true;
break;
}
}
RegCloseKey(hKey);
}
// Remove bad values if possible.
if (user && !bad.empty() &&
RegOpenKeyExW(HKEY_CURRENT_USER, key.c_str(), 0, KEY_SET_VALUE | view,
&hKey) == ERROR_SUCCESS) {
for (std::wstring const& v : bad) {
RegDeleteValueW(hKey, v.c_str());
}
RegCloseKey(hKey);
}
}
#else
class cmFindPackageCommandHoldFile
{
const char* File;
public:
cmFindPackageCommandHoldFile(const char* f)
: File(f)
{
}
~cmFindPackageCommandHoldFile()
{
if (this->File) {
cmSystemTools::RemoveFile(this->File);
}
}
cmFindPackageCommandHoldFile(const cmFindPackageCommandHoldFile&) = delete;
cmFindPackageCommandHoldFile& operator=(
const cmFindPackageCommandHoldFile&) = delete;
void Release() { this->File = nullptr; }
};
void cmFindPackageCommand::LoadPackageRegistryDir(std::string const& dir,
cmSearchPath& outPaths)
{
cmsys::Directory files;
if (!files.Load(dir)) {
return;
}
std::string fname;
for (unsigned long i = 0; i < files.GetNumberOfFiles(); ++i) {
fname = dir;
fname += "/";
fname += files.GetFile(i);
if (!cmSystemTools::FileIsDirectory(fname)) {
// Hold this file hostage until it behaves.
cmFindPackageCommandHoldFile holdFile(fname.c_str());
// Load the file.
cmsys::ifstream fin(fname.c_str(), std::ios::in | std::ios::binary);
std::string fentry;
if (fin && cmSystemTools::GetLineFromStream(fin, fentry) &&
this->CheckPackageRegistryEntry(fentry, outPaths)) {
// The file references an existing package, so release it.
holdFile.Release();
}
}
}
// TODO: Wipe out the directory if it is empty.
}
#endif
bool cmFindPackageCommand::CheckPackageRegistryEntry(const std::string& fname,
cmSearchPath& outPaths)
{
// Parse the content of one package registry entry.
if (cmSystemTools::FileIsFullPath(fname)) {
// The first line in the stream is the full path to a file or
// directory containing the package.
if (cmSystemTools::FileExists(fname)) {
// The path exists. Look for the package here.
if (!cmSystemTools::FileIsDirectory(fname)) {
outPaths.AddPath(cmSystemTools::GetFilenamePath(fname));
} else {
outPaths.AddPath(fname);
}
return true;
}
// The path does not exist. Assume the stream content is
// associated with an old package that no longer exists, and
// delete it to keep the package registry clean.
return false;
}
// The first line in the stream is not the full path to a file or
// directory. Assume the stream content was created by a future
// version of CMake that uses a different format, and leave it.
return true;
}
void cmFindPackageCommand::FillPrefixesCMakeSystemVariable()
{
cmSearchPath& paths = this->LabeledPaths[PathLabel::CMakeSystem];
paths.AddCMakePath("CMAKE_SYSTEM_PREFIX_PATH");
paths.AddCMakePath("CMAKE_SYSTEM_FRAMEWORK_PATH");
paths.AddCMakePath("CMAKE_SYSTEM_APPBUNDLE_PATH");
}
void cmFindPackageCommand::FillPrefixesUserGuess()
{
cmSearchPath& paths = this->LabeledPaths[PathLabel::Guess];
for (std::string const& p : this->UserGuessArgs) {
paths.AddUserPath(p);
}
}
void cmFindPackageCommand::FillPrefixesUserHints()
{
cmSearchPath& paths = this->LabeledPaths[PathLabel::Hints];
for (std::string const& p : this->UserHintsArgs) {
paths.AddUserPath(p);
}
}
bool cmFindPackageCommand::SearchDirectory(std::string const& dir)
{
assert(!dir.empty() && dir.back() == '/');
// Check each path suffix on this directory.
for (std::string const& s : this->SearchPathSuffixes) {
std::string d = dir;
if (!s.empty()) {
d += s;
d += "/";
}
if (this->CheckDirectory(d)) {
return true;
}
}
return false;
}
bool cmFindPackageCommand::CheckDirectory(std::string const& dir)
{
assert(!dir.empty() && dir.back() == '/');
// Look for the file in this directory.
std::string d = dir.substr(0, dir.size() - 1);
if (this->FindConfigFile(d, this->FileFound)) {
// Remove duplicate slashes.
cmSystemTools::ConvertToUnixSlashes(this->FileFound);
return true;
}
return false;
}
bool cmFindPackageCommand::FindConfigFile(std::string const& dir,
std::string& file)
{
if (this->IgnoredPaths.count(dir)) {
return false;
}
for (std::string const& c : this->Configs) {
file = dir;
file += "/";
file += c;
if (this->DebugMode) {
fprintf(stderr, "Checking file [%s]\n", file.c_str());
}
if (cmSystemTools::FileExists(file, true) && this->CheckVersion(file)) {
// Allow resolving symlinks when the config file is found through a link
if (this->UseRealPath) {
file = cmSystemTools::GetRealPath(file);
}
return true;
}
}
return false;
}
bool cmFindPackageCommand::CheckVersion(std::string const& config_file)
{
bool result = false; // by default, assume the version is not ok.
bool haveResult = false;
std::string version = "unknown";
// Get the filename without the .cmake extension.
std::string::size_type pos = config_file.rfind('.');
std::string version_file_base = config_file.substr(0, pos);
// Look for foo-config-version.cmake
std::string version_file = version_file_base;
version_file += "-version.cmake";
if (!haveResult && cmSystemTools::FileExists(version_file, true)) {
result = this->CheckVersionFile(version_file, version);
haveResult = true;
}
// Look for fooConfigVersion.cmake
version_file = version_file_base;
version_file += "Version.cmake";
if (!haveResult && cmSystemTools::FileExists(version_file, true)) {
result = this->CheckVersionFile(version_file, version);
haveResult = true;
}
// If no version was requested a versionless package is acceptable.
if (!haveResult && this->Version.empty()) {
result = true;
}
ConfigFileInfo configFileInfo;
configFileInfo.filename = config_file;
configFileInfo.version = version;
this->ConsideredConfigs.push_back(std::move(configFileInfo));
return result;
}
bool cmFindPackageCommand::CheckVersionFile(std::string const& version_file,
std::string& result_version)
{
// The version file will be loaded in an isolated scope.
cmMakefile::ScopePushPop varScope(this->Makefile);
cmMakefile::PolicyPushPop polScope(this->Makefile);
static_cast<void>(varScope);
static_cast<void>(polScope);
// Clear the output variables.
this->Makefile->RemoveDefinition("PACKAGE_VERSION");
this->Makefile->RemoveDefinition("PACKAGE_VERSION_UNSUITABLE");
this->Makefile->RemoveDefinition("PACKAGE_VERSION_COMPATIBLE");
this->Makefile->RemoveDefinition("PACKAGE_VERSION_EXACT");
// Set the input variables.
this->Makefile->AddDefinition("PACKAGE_FIND_NAME", this->Name.c_str());
this->Makefile->AddDefinition("PACKAGE_FIND_VERSION", this->Version.c_str());
char buf[64];
sprintf(buf, "%u", this->VersionMajor);
this->Makefile->AddDefinition("PACKAGE_FIND_VERSION_MAJOR", buf);
sprintf(buf, "%u", this->VersionMinor);
this->Makefile->AddDefinition("PACKAGE_FIND_VERSION_MINOR", buf);
sprintf(buf, "%u", this->VersionPatch);
this->Makefile->AddDefinition("PACKAGE_FIND_VERSION_PATCH", buf);
sprintf(buf, "%u", this->VersionTweak);
this->Makefile->AddDefinition("PACKAGE_FIND_VERSION_TWEAK", buf);
sprintf(buf, "%u", this->VersionCount);
this->Makefile->AddDefinition("PACKAGE_FIND_VERSION_COUNT", buf);
// Load the version check file. Pass NoPolicyScope because we do
// our own policy push/pop independent of CMP0011.
bool suitable = false;
if (this->ReadListFile(version_file, NoPolicyScope)) {
// Check the output variables.
bool okay = this->Makefile->IsOn("PACKAGE_VERSION_EXACT");
bool unsuitable = this->Makefile->IsOn("PACKAGE_VERSION_UNSUITABLE");
if (!okay && !this->VersionExact) {
okay = this->Makefile->IsOn("PACKAGE_VERSION_COMPATIBLE");
}
// The package is suitable if the version is okay and not
// explicitly unsuitable.
suitable = !unsuitable && (okay || this->Version.empty());
if (suitable) {
// Get the version found.
this->VersionFound =
this->Makefile->GetSafeDefinition("PACKAGE_VERSION");
// Try to parse the version number and store the results that were
// successfully parsed.
unsigned int parsed_major;
unsigned int parsed_minor;
unsigned int parsed_patch;
unsigned int parsed_tweak;
this->VersionFoundCount =
sscanf(this->VersionFound.c_str(), "%u.%u.%u.%u", &parsed_major,
&parsed_minor, &parsed_patch, &parsed_tweak);
switch (this->VersionFoundCount) {
case 4:
this->VersionFoundTweak = parsed_tweak;
CM_FALLTHROUGH;
case 3:
this->VersionFoundPatch = parsed_patch;
CM_FALLTHROUGH;
case 2:
this->VersionFoundMinor = parsed_minor;
CM_FALLTHROUGH;
case 1:
this->VersionFoundMajor = parsed_major;
CM_FALLTHROUGH;
default:
break;
}
}
}
result_version = this->Makefile->GetSafeDefinition("PACKAGE_VERSION");
if (result_version.empty()) {
result_version = "unknown";
}
// Succeed if the version is suitable.
return suitable;
}
void cmFindPackageCommand::StoreVersionFound()
{
// Store the whole version string.
std::string ver = this->Name;
ver += "_VERSION";
if (this->VersionFound.empty()) {
this->Makefile->RemoveDefinition(ver);
} else {
this->Makefile->AddDefinition(ver, this->VersionFound.c_str());
}
// Store the version components.
char buf[64];
sprintf(buf, "%u", this->VersionFoundMajor);
this->Makefile->AddDefinition(ver + "_MAJOR", buf);
sprintf(buf, "%u", this->VersionFoundMinor);
this->Makefile->AddDefinition(ver + "_MINOR", buf);
sprintf(buf, "%u", this->VersionFoundPatch);
this->Makefile->AddDefinition(ver + "_PATCH", buf);
sprintf(buf, "%u", this->VersionFoundTweak);
this->Makefile->AddDefinition(ver + "_TWEAK", buf);
sprintf(buf, "%u", this->VersionFoundCount);
this->Makefile->AddDefinition(ver + "_COUNT", buf);
}
class cmFileListGeneratorBase
{
public:
virtual ~cmFileListGeneratorBase() = default;
protected:
bool Consider(std::string const& fullPath, cmFileList& listing);
private:
bool Search(cmFileList&);
virtual bool Search(std::string const& parent, cmFileList&) = 0;
virtual std::unique_ptr<cmFileListGeneratorBase> Clone() const = 0;
friend class cmFileList;
cmFileListGeneratorBase* SetNext(cmFileListGeneratorBase const& next);
std::unique_ptr<cmFileListGeneratorBase> Next;
};
class cmFileList
{
public:
virtual ~cmFileList() = default;
cmFileList& operator/(cmFileListGeneratorBase const& rhs)
{
if (this->Last) {
this->Last = this->Last->SetNext(rhs);
} else {
this->First = rhs.Clone();
this->Last = this->First.get();
}
return *this;
}
bool Search()
{
if (this->First) {
return this->First->Search(*this);
}
return false;
}
private:
virtual bool Visit(std::string const& fullPath) = 0;
friend class cmFileListGeneratorBase;
std::unique_ptr<cmFileListGeneratorBase> First;
cmFileListGeneratorBase* Last = nullptr;
};
class cmFindPackageFileList : public cmFileList
{
public:
cmFindPackageFileList(cmFindPackageCommand* fpc, bool use_suffixes = true)
: FPC(fpc)
, UseSuffixes(use_suffixes)
{
}
private:
bool Visit(std::string const& fullPath) override
{
if (this->UseSuffixes) {
return this->FPC->SearchDirectory(fullPath);
}
return this->FPC->CheckDirectory(fullPath);
}
cmFindPackageCommand* FPC;
bool UseSuffixes;
};
bool cmFileListGeneratorBase::Search(cmFileList& listing)
{
return this->Search("", listing);
}
cmFileListGeneratorBase* cmFileListGeneratorBase::SetNext(
cmFileListGeneratorBase const& next)
{
this->Next = next.Clone();
return this->Next.get();
}
bool cmFileListGeneratorBase::Consider(std::string const& fullPath,
cmFileList& listing)
{
if (this->Next) {
return this->Next->Search(fullPath + "/", listing);
}
return listing.Visit(fullPath + "/");
}
class cmFileListGeneratorFixed : public cmFileListGeneratorBase
{
public:
cmFileListGeneratorFixed(std::string str)
: String(std::move(str))
{
}
cmFileListGeneratorFixed(cmFileListGeneratorFixed const& r)
: String(r.String)
{
}
private:
std::string String;
bool Search(std::string const& parent, cmFileList& lister) override
{
std::string fullPath = parent + this->String;
return this->Consider(fullPath, lister);
}
std::unique_ptr<cmFileListGeneratorBase> Clone() const override
{
std::unique_ptr<cmFileListGeneratorBase> g(
new cmFileListGeneratorFixed(*this));
return g;
}
};
class cmFileListGeneratorEnumerate : public cmFileListGeneratorBase
{
public:
cmFileListGeneratorEnumerate(std::vector<std::string> const& v)
: Vector(v)
{
}
cmFileListGeneratorEnumerate(cmFileListGeneratorEnumerate const& r)
: Vector(r.Vector)
{
}
private:
std::vector<std::string> const& Vector;
bool Search(std::string const& parent, cmFileList& lister) override
{
for (std::string const& i : this->Vector) {
if (this->Consider(parent + i, lister)) {
return true;
}
}
return false;
}
std::unique_ptr<cmFileListGeneratorBase> Clone() const override
{
std::unique_ptr<cmFileListGeneratorBase> g(
new cmFileListGeneratorEnumerate(*this));
return g;
}
};
class cmFileListGeneratorProject : public cmFileListGeneratorBase
{
public:
cmFileListGeneratorProject(std::vector<std::string> const& names,
cmFindPackageCommand::SortOrderType so,
cmFindPackageCommand::SortDirectionType sd)
: Names(names)
{
this->SetSort(so, sd);
}
cmFileListGeneratorProject(cmFileListGeneratorProject const& r)
: Names(r.Names)
{
this->SetSort(r.SortOrder, r.SortDirection);
}
void SetSort(cmFindPackageCommand::SortOrderType o,
cmFindPackageCommand::SortDirectionType d)
{
SortOrder = o;
SortDirection = d;
}
protected:
// sort parameters
cmFindPackageCommand::SortOrderType SortOrder;
cmFindPackageCommand::SortDirectionType SortDirection;
private:
std::vector<std::string> const& Names;
bool Search(std::string const& parent, cmFileList& lister) override
{
// Construct a list of matches.
std::vector<std::string> matches;
cmsys::Directory d;
d.Load(parent);
for (unsigned long i = 0; i < d.GetNumberOfFiles(); ++i) {
const char* fname = d.GetFile(i);
if (strcmp(fname, ".") == 0 || strcmp(fname, "..") == 0) {
continue;
}
for (std::string const& n : this->Names) {
if (cmsysString_strncasecmp(fname, n.c_str(), n.length()) == 0) {
matches.emplace_back(fname);
}
}
}
// before testing the matches check if there is a specific sorting order to
// perform
if (this->SortOrder != cmFindPackageCommand::None) {
cmFindPackageCommand::Sort(matches.begin(), matches.end(), SortOrder,
SortDirection);
}
for (std::string const& i : matches) {
if (this->Consider(parent + i, lister)) {
return true;
}
}
return false;
}
std::unique_ptr<cmFileListGeneratorBase> Clone() const override
{
std::unique_ptr<cmFileListGeneratorBase> g(
new cmFileListGeneratorProject(*this));
return g;
}
};
class cmFileListGeneratorMacProject : public cmFileListGeneratorBase
{
public:
cmFileListGeneratorMacProject(std::vector<std::string> const& names,
const char* ext)
: Names(names)
, Extension(ext)
{
}
cmFileListGeneratorMacProject(cmFileListGeneratorMacProject const& r)
: Names(r.Names)
, Extension(r.Extension)
{
}
private:
std::vector<std::string> const& Names;
std::string Extension;
bool Search(std::string const& parent, cmFileList& lister) override
{
// Construct a list of matches.
std::vector<std::string> matches;
cmsys::Directory d;
d.Load(parent);
for (unsigned long i = 0; i < d.GetNumberOfFiles(); ++i) {
const char* fname = d.GetFile(i);
if (strcmp(fname, ".") == 0 || strcmp(fname, "..") == 0) {
continue;
}
for (std::string name : this->Names) {
name += this->Extension;
if (cmsysString_strcasecmp(fname, name.c_str()) == 0) {
matches.emplace_back(fname);
}
}
}
for (std::string const& i : matches) {
if (this->Consider(parent + i, lister)) {
return true;
}
}
return false;
}
std::unique_ptr<cmFileListGeneratorBase> Clone() const override
{
std::unique_ptr<cmFileListGeneratorBase> g(
new cmFileListGeneratorMacProject(*this));
return g;
}
};
class cmFileListGeneratorCaseInsensitive : public cmFileListGeneratorBase
{
public:
cmFileListGeneratorCaseInsensitive(std::string str)
: String(std::move(str))
{
}
cmFileListGeneratorCaseInsensitive(
cmFileListGeneratorCaseInsensitive const& r)
: String(r.String)
{
}
private:
std::string String;
bool Search(std::string const& parent, cmFileList& lister) override
{
// Look for matching files.
std::vector<std::string> matches;
cmsys::Directory d;
d.Load(parent);
for (unsigned long i = 0; i < d.GetNumberOfFiles(); ++i) {
const char* fname = d.GetFile(i);
if (strcmp(fname, ".") == 0 || strcmp(fname, "..") == 0) {
continue;
}
if (cmsysString_strcasecmp(fname, this->String.c_str()) == 0) {
if (this->Consider(parent + fname, lister)) {
return true;
}
}
}
return false;
}
std::unique_ptr<cmFileListGeneratorBase> Clone() const override
{
std::unique_ptr<cmFileListGeneratorBase> g(
new cmFileListGeneratorCaseInsensitive(*this));
return g;
}
};
class cmFileListGeneratorGlob : public cmFileListGeneratorBase
{
public:
cmFileListGeneratorGlob(std::string str)
: Pattern(std::move(str))
{
}
cmFileListGeneratorGlob(cmFileListGeneratorGlob const& r)
: Pattern(r.Pattern)
{
}
private:
std::string Pattern;
bool Search(std::string const& parent, cmFileList& lister) override
{
// Glob the set of matching files.
std::string expr = parent;
expr += this->Pattern;
cmsys::Glob g;
if (!g.FindFiles(expr)) {
return false;
}
std::vector<std::string> const& files = g.GetFiles();
// Look for directories among the matches.
for (std::string const& f : files) {
if (cmSystemTools::FileIsDirectory(f)) {
if (this->Consider(f, lister)) {
return true;
}
}
}
return false;
}
std::unique_ptr<cmFileListGeneratorBase> Clone() const override
{
return cm::make_unique<cmFileListGeneratorGlob>(*this);
}
};
bool cmFindPackageCommand::SearchPrefix(std::string const& prefix_in)
{
assert(!prefix_in.empty() && prefix_in.back() == '/');
if (this->DebugMode) {
fprintf(stderr, "Checking prefix [%s]\n", prefix_in.c_str());
}
// Skip this if the prefix does not exist.
if (!cmSystemTools::FileIsDirectory(prefix_in)) {
return false;
}
// PREFIX/ (useful on windows or in build trees)
if (this->SearchDirectory(prefix_in)) {
return true;
}
// Strip the trailing slash because the path generator is about to
// add one.
std::string prefix = prefix_in.substr(0, prefix_in.size() - 1);
// PREFIX/(cmake|CMake)/ (useful on windows or in build trees)
{
cmFindPackageFileList lister(this);
lister / cmFileListGeneratorFixed(prefix) /
cmFileListGeneratorCaseInsensitive("cmake");
if (lister.Search()) {
return true;
}
}
// PREFIX/(Foo|foo|FOO).*/
{
cmFindPackageFileList lister(this);
lister / cmFileListGeneratorFixed(prefix) /
cmFileListGeneratorProject(this->Names, this->SortOrder,
this->SortDirection);
if (lister.Search()) {
return true;
}
}
// PREFIX/(Foo|foo|FOO).*/(cmake|CMake)/
{
cmFindPackageFileList lister(this);
lister / cmFileListGeneratorFixed(prefix) /
cmFileListGeneratorProject(this->Names, this->SortOrder,
this->SortDirection) /
cmFileListGeneratorCaseInsensitive("cmake");
if (lister.Search()) {
return true;
}
}
// Construct list of common install locations (lib and share).
std::vector<std::string> common;
if (!this->LibraryArchitecture.empty()) {
common.push_back("lib/" + this->LibraryArchitecture);
}
if (this->UseLib32Paths) {
common.emplace_back("lib32");
}
if (this->UseLib64Paths) {
common.emplace_back("lib64");
}
if (this->UseLibx32Paths) {
common.emplace_back("libx32");
}
common.emplace_back("lib");
common.emplace_back("share");
// PREFIX/(lib/ARCH|lib*|share)/cmake/(Foo|foo|FOO).*/
{
cmFindPackageFileList lister(this);
lister / cmFileListGeneratorFixed(prefix) /
cmFileListGeneratorEnumerate(common) /
cmFileListGeneratorFixed("cmake") /
cmFileListGeneratorProject(this->Names, this->SortOrder,
this->SortDirection);
if (lister.Search()) {
return true;
}
}
// PREFIX/(lib/ARCH|lib*|share)/(Foo|foo|FOO).*/
{
cmFindPackageFileList lister(this);
lister / cmFileListGeneratorFixed(prefix) /
cmFileListGeneratorEnumerate(common) /
cmFileListGeneratorProject(this->Names, this->SortOrder,
this->SortDirection);
if (lister.Search()) {
return true;
}
}
// PREFIX/(lib/ARCH|lib*|share)/(Foo|foo|FOO).*/(cmake|CMake)/
{
cmFindPackageFileList lister(this);
lister / cmFileListGeneratorFixed(prefix) /
cmFileListGeneratorEnumerate(common) /
cmFileListGeneratorProject(this->Names, this->SortOrder,
this->SortDirection) /
cmFileListGeneratorCaseInsensitive("cmake");
if (lister.Search()) {
return true;
}
}
// PREFIX/(Foo|foo|FOO).*/(lib/ARCH|lib*|share)/cmake/(Foo|foo|FOO).*/
{
cmFindPackageFileList lister(this);
lister / cmFileListGeneratorFixed(prefix) /
cmFileListGeneratorProject(this->Names, this->SortOrder,
this->SortDirection) /
cmFileListGeneratorEnumerate(common) /
cmFileListGeneratorFixed("cmake") /
cmFileListGeneratorProject(this->Names, this->SortOrder,
this->SortDirection);
if (lister.Search()) {
return true;
}
}
// PREFIX/(Foo|foo|FOO).*/(lib/ARCH|lib*|share)/(Foo|foo|FOO).*/
{
cmFindPackageFileList lister(this);
lister / cmFileListGeneratorFixed(prefix) /
cmFileListGeneratorProject(this->Names, this->SortOrder,
this->SortDirection) /
cmFileListGeneratorEnumerate(common) /
cmFileListGeneratorProject(this->Names, this->SortOrder,
this->SortDirection);
if (lister.Search()) {
return true;
}
}
// PREFIX/(Foo|foo|FOO).*/(lib/ARCH|lib*|share)/(Foo|foo|FOO).*/(cmake|CMake)/
{
cmFindPackageFileList lister(this);
lister / cmFileListGeneratorFixed(prefix) /
cmFileListGeneratorProject(this->Names, this->SortOrder,
this->SortDirection) /
cmFileListGeneratorEnumerate(common) /
cmFileListGeneratorProject(this->Names, this->SortOrder,
this->SortDirection) /
cmFileListGeneratorCaseInsensitive("cmake");
if (lister.Search()) {
return true;
}
}
return false;
}
bool cmFindPackageCommand::SearchFrameworkPrefix(std::string const& prefix_in)
{
assert(!prefix_in.empty() && prefix_in.back() == '/');
if (this->DebugMode) {
fprintf(stderr, "Checking framework prefix [%s]\n", prefix_in.c_str());
}
// Strip the trailing slash because the path generator is about to
// add one.
std::string prefix = prefix_in.substr(0, prefix_in.size() - 1);
// <prefix>/Foo.framework/Resources/
{
cmFindPackageFileList lister(this);
lister / cmFileListGeneratorFixed(prefix) /
cmFileListGeneratorMacProject(this->Names, ".framework") /
cmFileListGeneratorFixed("Resources");
if (lister.Search()) {
return true;
}
}
// <prefix>/Foo.framework/Resources/CMake/
{
cmFindPackageFileList lister(this);
lister / cmFileListGeneratorFixed(prefix) /
cmFileListGeneratorMacProject(this->Names, ".framework") /
cmFileListGeneratorFixed("Resources") /
cmFileListGeneratorCaseInsensitive("cmake");
if (lister.Search()) {
return true;
}
}
// <prefix>/Foo.framework/Versions/*/Resources/
{
cmFindPackageFileList lister(this);
lister / cmFileListGeneratorFixed(prefix) /
cmFileListGeneratorMacProject(this->Names, ".framework") /
cmFileListGeneratorFixed("Versions") /
cmFileListGeneratorGlob("*/Resources");
if (lister.Search()) {
return true;
}
}
// <prefix>/Foo.framework/Versions/*/Resources/CMake/
{
cmFindPackageFileList lister(this);
lister / cmFileListGeneratorFixed(prefix) /
cmFileListGeneratorMacProject(this->Names, ".framework") /
cmFileListGeneratorFixed("Versions") /
cmFileListGeneratorGlob("*/Resources") /
cmFileListGeneratorCaseInsensitive("cmake");
if (lister.Search()) {
return true;
}
}
return false;
}
bool cmFindPackageCommand::SearchAppBundlePrefix(std::string const& prefix_in)
{
assert(!prefix_in.empty() && prefix_in.back() == '/');
if (this->DebugMode) {
fprintf(stderr, "Checking bundle prefix [%s]\n", prefix_in.c_str());
}
// Strip the trailing slash because the path generator is about to
// add one.
std::string prefix = prefix_in.substr(0, prefix_in.size() - 1);
// <prefix>/Foo.app/Contents/Resources
{
cmFindPackageFileList lister(this);
lister / cmFileListGeneratorFixed(prefix) /
cmFileListGeneratorMacProject(this->Names, ".app") /
cmFileListGeneratorFixed("Contents/Resources");
if (lister.Search()) {
return true;
}
}
// <prefix>/Foo.app/Contents/Resources/CMake
{
cmFindPackageFileList lister(this);
lister / cmFileListGeneratorFixed(prefix) /
cmFileListGeneratorMacProject(this->Names, ".app") /
cmFileListGeneratorFixed("Contents/Resources") /
cmFileListGeneratorCaseInsensitive("cmake");
if (lister.Search()) {
return true;
}
}
return false;
}
// TODO: Debug cmsys::Glob double slash problem.