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CMake/Source/cmFindPackageCommand.cxx
Brad King 5303fbf09e Speedup find_* commands (#11412) 
Delay computation of the command documentation until it is needed.
It is wasteful to do it in the constructor on every call.

Inspired-By: Christian Ehrlicher <Ch.Ehrlicher@gmx.de>
2010-11-12 10:47:28 -05:00

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/*============================================================================
CMake - Cross Platform Makefile Generator
Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
Distributed under the OSI-approved BSD License (the "License");
see accompanying file Copyright.txt for details.
This software is distributed WITHOUT ANY WARRANTY; without even the
implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the License for more information.
============================================================================*/
#include "cmFindPackageCommand.h"
#include <cmsys/Directory.hxx>
#include <cmsys/RegularExpression.hxx>
#ifdef CMAKE_BUILD_WITH_CMAKE
#include "cmVariableWatch.h"
#endif
#if defined(__HAIKU__)
#include <StorageKit.h>
#endif
void cmFindPackageNeedBackwardsCompatibility(const std::string& variable,
int access_type, void*, const char* newValue,
const cmMakefile*)
{
(void)newValue;
#ifdef CMAKE_BUILD_WITH_CMAKE
if(access_type == cmVariableWatch::UNKNOWN_VARIABLE_READ_ACCESS)
{
std::string message = "An attempt was made to access a variable: ";
message += variable;
message +=
" that has not been defined. This variable is created by the "
"FIND_PACKAGE command. CMake version 1.6 always converted the "
"variable name to upper-case, but this behavior is no longer the "
"case. To fix this you might need to set the cache value of "
"CMAKE_BACKWARDS_COMPATIBILITY to 1.6 or less. If you are writing a "
"CMake listfile, you should change the variable reference to use "
"the case of the argument to FIND_PACKAGE.";
cmSystemTools::Error(message.c_str());
}
#else
(void)variable;
(void)access_type;
#endif
}
//----------------------------------------------------------------------------
cmFindPackageCommand::cmFindPackageCommand()
{
this->CMakePathName = "PACKAGE";
this->Quiet = false;
this->Required = false;
this->NoRegistry = false;
this->NoBuilds = false;
this->NoModule = false;
this->DebugMode = false;
this->UseLib64Paths = 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;
}
//----------------------------------------------------------------------------
void cmFindPackageCommand::GenerateDocumentation()
{
this->cmFindCommon::GenerateDocumentation();
cmSystemTools::ReplaceString(this->GenericDocumentationRootPath,
"CMAKE_FIND_ROOT_PATH_MODE_XXX",
"CMAKE_FIND_ROOT_PATH_MODE_PACKAGE");
cmSystemTools::ReplaceString(this->GenericDocumentationPathsOrder,
"FIND_ARGS_XXX", "<package>");
cmSystemTools::ReplaceString(this->GenericDocumentationPathsOrder,
"FIND_XXX", "find_package");
this->CommandDocumentation =
" find_package(<package> [version] [EXACT] [QUIET]\n"
" [[REQUIRED|COMPONENTS] [components...]]\n"
" [NO_POLICY_SCOPE])\n"
"Finds and loads settings from an external project. "
"<package>_FOUND will be set to indicate whether the package was found. "
"When the package is found package-specific information is provided "
"through variables documented by the package itself. "
"The QUIET option disables messages if the package cannot be found. "
"The REQUIRED option stops processing with an error message if the "
"package cannot be found. "
"A package-specific list of components may be listed after the "
"REQUIRED option or after the COMPONENTS option if no REQUIRED "
"option is given. "
"The [version] argument requests a version with which the package found "
"should be compatible (format is major[.minor[.patch[.tweak]]]). "
"The EXACT option requests that the version be matched exactly. "
"If no [version] is given to a recursive invocation inside a "
"find-module, the [version] and EXACT arguments are forwarded "
"automatically from the outer call. "
"Version support is currently provided only on a package-by-package "
"basis (details below).\n"
"User code should generally look for packages using the above simple "
"signature. The remainder of this command documentation specifies the "
"full command signature and details of the search process. Project "
"maintainers wishing to provide a package to be found by this command "
"are encouraged to read on.\n"
"The command has two modes by which it searches for packages: "
"\"Module\" mode and \"Config\" mode. "
"Module mode is available when the command is invoked with the above "
"reduced signature. "
"CMake searches for a file called \"Find<package>.cmake\" in "
"the CMAKE_MODULE_PATH followed by the CMake installation. "
"If the file is found, it is read and processed by CMake. "
"It is responsible for finding the package, checking the version, "
"and producing any needed messages. "
"Many find-modules provide limited or no support for versioning; "
"check the module documentation. "
"If no module is found the command proceeds to Config mode.\n"
"The complete Config mode command signature is:\n"
" find_package(<package> [version] [EXACT] [QUIET]\n"
" [[REQUIRED|COMPONENTS] [components...]] [NO_MODULE]\n"
" [NO_POLICY_SCOPE]\n"
" [NAMES name1 [name2 ...]]\n"
" [CONFIGS config1 [config2 ...]]\n"
" [HINTS path1 [path2 ... ]]\n"
" [PATHS path1 [path2 ... ]]\n"
" [PATH_SUFFIXES suffix1 [suffix2 ...]]\n"
" [NO_DEFAULT_PATH]\n"
" [NO_CMAKE_ENVIRONMENT_PATH]\n"
" [NO_CMAKE_PATH]\n"
" [NO_SYSTEM_ENVIRONMENT_PATH]\n"
" [NO_CMAKE_PACKAGE_REGISTRY]\n"
" [NO_CMAKE_BUILDS_PATH]\n"
" [NO_CMAKE_SYSTEM_PATH]\n"
" [CMAKE_FIND_ROOT_PATH_BOTH |\n"
" ONLY_CMAKE_FIND_ROOT_PATH |\n"
" NO_CMAKE_FIND_ROOT_PATH])\n"
"The NO_MODULE option may be used to skip Module mode explicitly. "
"It is also implied by use of options not specified in the reduced "
"signature. "
"\n"
"Config mode attempts to locate a configuration file provided by the "
"package to be found. A cache entry called <package>_DIR is created to "
"hold the directory containing the file. "
"By default the command searches for a package with the name <package>. "
"If the NAMES option is given the names following it are used instead "
"of <package>. "
"The command searches for a file called \"<name>Config.cmake\" or "
"\"<lower-case-name>-config.cmake\" for each name specified. "
"A replacement set of possible configuration file names may be given "
"using the CONFIGS option. "
"The search procedure is specified below. Once found, the configuration "
"file is read and processed by CMake. Since the file is provided by the "
"package it already knows the location of package contents. "
"The full path to the configuration file is stored in the cmake "
"variable <package>_CONFIG."
"\n"
"All configuration files which have been considered by CMake while "
"searching for an installation of the package with an appropriate "
"version are stored in the cmake variable <package>_CONSIDERED_CONFIGS, "
"the associated versions in <package>_CONSIDERED_VERSIONS. "
"\n"
"If the package configuration file cannot be found CMake "
"will generate an error describing the problem unless the QUIET "
"argument is specified. If REQUIRED is specified and the package "
"is not found a fatal error is generated and the configure step stops "
"executing. If <package>_DIR has been set to a directory not containing "
"a configuration file CMake will ignore it and search from scratch."
"\n"
"When the [version] argument is given Config mode will only find a "
"version of the package that claims compatibility with the requested "
"version (format is major[.minor[.patch[.tweak]]]). "
"If the EXACT option is given only a version of the package claiming "
"an exact match of the requested version may be found. "
"CMake does not establish any convention for the meaning of version "
"numbers. "
"Package version numbers are checked by \"version\" files provided by "
"the packages themselves. "
"For a candidate package configuration file \"<config-file>.cmake\" the "
"corresponding version file is located next to it and named either "
"\"<config-file>-version.cmake\" or \"<config-file>Version.cmake\". "
"If no such version file is available then the configuration file "
"is assumed to not be compatible with any requested version. "
"When a version file is found it is loaded to check the requested "
"version number. "
"The version file is loaded in a nested scope in which the following "
"variables have been defined:\n"
" PACKAGE_FIND_NAME = the <package> name\n"
" PACKAGE_FIND_VERSION = full requested version string\n"
" PACKAGE_FIND_VERSION_MAJOR = major version if requested, else 0\n"
" PACKAGE_FIND_VERSION_MINOR = minor version if requested, else 0\n"
" PACKAGE_FIND_VERSION_PATCH = patch version if requested, else 0\n"
" PACKAGE_FIND_VERSION_TWEAK = tweak version if requested, else 0\n"
" PACKAGE_FIND_VERSION_COUNT = number of version components, 0 to 4\n"
"The version file checks whether it satisfies the requested version "
"and sets these variables:\n"
" PACKAGE_VERSION = full provided version string\n"
" PACKAGE_VERSION_EXACT = true if version is exact match\n"
" PACKAGE_VERSION_COMPATIBLE = true if version is compatible\n"
" PACKAGE_VERSION_UNSUITABLE = true if unsuitable as any version\n"
"These variables are checked by the find_package command to determine "
"whether the configuration file provides an acceptable version. "
"They are not available after the find_package call returns. "
"If the version is acceptable the following variables are set:\n"
" <package>_VERSION = full provided version string\n"
" <package>_VERSION_MAJOR = major version if provided, else 0\n"
" <package>_VERSION_MINOR = minor version if provided, else 0\n"
" <package>_VERSION_PATCH = patch version if provided, else 0\n"
" <package>_VERSION_TWEAK = tweak version if provided, else 0\n"
" <package>_VERSION_COUNT = number of version components, 0 to 4\n"
"and the corresponding package configuration file is loaded. "
"When multiple package configuration files are available whose version "
"files claim compatibility with the version requested it is unspecified "
"which one is chosen. "
"No attempt is made to choose a highest or closest version number."
"\n"
"Config mode provides an elaborate interface and search procedure. "
"Much of the interface is provided for completeness and for use "
"internally by find-modules loaded by Module mode. "
"Most user code should simply call\n"
" find_package(<package> [major[.minor]] [EXACT] [REQUIRED|QUIET])\n"
"in order to find a package. Package maintainers providing CMake "
"package configuration files are encouraged to name and install "
"them such that the procedure outlined below will find them "
"without requiring use of additional options."
"\n"
"CMake constructs a set of possible installation prefixes for the "
"package. Under each prefix several directories are searched for a "
"configuration file. The tables below show the directories searched. "
"Each entry is meant for installation trees following Windows (W), "
"UNIX (U), or Apple (A) conventions.\n"
" <prefix>/ (W)\n"
" <prefix>/(cmake|CMake)/ (W)\n"
" <prefix>/<name>*/ (W)\n"
" <prefix>/<name>*/(cmake|CMake)/ (W)\n"
" <prefix>/(share|lib)/cmake/<name>*/ (U)\n"
" <prefix>/(share|lib)/<name>*/ (U)\n"
" <prefix>/(share|lib)/<name>*/(cmake|CMake)/ (U)\n"
"On systems supporting OS X Frameworks and Application Bundles "
"the following directories are searched for frameworks or bundles "
"containing a configuration file:\n"
" <prefix>/<name>.framework/Resources/ (A)\n"
" <prefix>/<name>.framework/Resources/CMake/ (A)\n"
" <prefix>/<name>.framework/Versions/*/Resources/ (A)\n"
" <prefix>/<name>.framework/Versions/*/Resources/CMake/ (A)\n"
" <prefix>/<name>.app/Contents/Resources/ (A)\n"
" <prefix>/<name>.app/Contents/Resources/CMake/ (A)\n"
"In all cases the <name> is treated as case-insensitive and corresponds "
"to any of the names specified (<package> or names given by NAMES). "
"If PATH_SUFFIXES is specified the suffixes are appended to each "
"(W) or (U) directory entry one-by-one.\n"
"This set of directories is intended to work in cooperation with "
"projects that provide configuration files in their installation trees. "
"Directories above marked with (W) are intended for installations on "
"Windows where the prefix may point at the top of an application's "
"installation directory. Those marked with (U) are intended for "
"installations on UNIX platforms where the prefix is shared by "
"multiple packages. This is merely a convention, so all (W) and (U) "
"directories are still searched on all platforms. "
"Directories marked with (A) are intended for installations on "
"Apple platforms. The cmake variables CMAKE_FIND_FRAMEWORK and "
"CMAKE_FIND_APPBUNDLE determine the order of preference "
"as specified below.\n"
"The set of installation prefixes is constructed using the following "
"steps. If NO_DEFAULT_PATH is specified all NO_* options are enabled.\n"
"1. Search paths specified in cmake-specific cache variables. "
"These are intended to be used on the command line with a -DVAR=value. "
"This can be skipped if NO_CMAKE_PATH is passed.\n"
" CMAKE_PREFIX_PATH\n"
" CMAKE_FRAMEWORK_PATH\n"
" CMAKE_APPBUNDLE_PATH\n"
"2. Search paths specified in cmake-specific environment variables. "
"These are intended to be set in the user's shell configuration. "
"This can be skipped if NO_CMAKE_ENVIRONMENT_PATH is passed.\n"
" <package>_DIR\n"
" CMAKE_PREFIX_PATH\n"
" CMAKE_FRAMEWORK_PATH\n"
" CMAKE_APPBUNDLE_PATH\n"
"3. Search paths specified by the HINTS option. "
"These should be paths computed by system introspection, such as a "
"hint provided by the location of another item already found. "
"Hard-coded guesses should be specified with the PATHS option.\n"
"4. Search the standard system environment variables. "
"This can be skipped if NO_SYSTEM_ENVIRONMENT_PATH is passed. "
"Path entries ending in \"/bin\" or \"/sbin\" are automatically "
"converted to their parent directories.\n"
" PATH\n"
"5. Search project build trees recently configured in a CMake GUI. "
"This can be skipped if NO_CMAKE_BUILDS_PATH is passed. "
"It is intended for the case when a user is building multiple "
"dependent projects one after another.\n"
"6. Search paths stored in the CMake user package registry. "
"This can be skipped if NO_CMAKE_PACKAGE_REGISTRY is passed. "
"Paths are stored in the registry when CMake configures a project "
"that invokes export(PACKAGE <name>). "
"See the export(PACKAGE) command documentation for more details."
"\n"
"7. Search cmake variables defined in the Platform files "
"for the current system. This can be skipped if NO_CMAKE_SYSTEM_PATH "
"is passed.\n"
" CMAKE_SYSTEM_PREFIX_PATH\n"
" CMAKE_SYSTEM_FRAMEWORK_PATH\n"
" CMAKE_SYSTEM_APPBUNDLE_PATH\n"
"8. Search paths specified by the PATHS option. "
"These are typically hard-coded guesses.\n"
;
this->CommandDocumentation += this->GenericDocumentationMacPolicy;
this->CommandDocumentation += this->GenericDocumentationRootPath;
this->CommandDocumentation += this->GenericDocumentationPathsOrder;
this->CommandDocumentation +=
"\n"
"See the cmake_policy() command documentation for discussion of the "
"NO_POLICY_SCOPE option."
;
}
//----------------------------------------------------------------------------
const char* cmFindPackageCommand::GetFullDocumentation()
{
if(this->CommandDocumentation.empty())
{
this->GenerateDocumentation();
}
return this->CommandDocumentation.c_str();
}
//----------------------------------------------------------------------------
bool cmFindPackageCommand
::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
{
if(args.size() < 1)
{
this->SetError("called with incorrect number of arguments");
return false;
}
// Check for debug mode.
this->DebugMode = this->Makefile->IsOn("CMAKE_FIND_DEBUG_MODE");
// Lookup whether lib64 paths should be used.
if(this->Makefile->PlatformIs64Bit() &&
this->Makefile->GetCMakeInstance()
->GetPropertyAsBool("FIND_LIBRARY_USE_LIB64_PATHS"))
{
this->UseLib64Paths = true;
}
// 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 = "";
// Check ancient compatibility.
this->Compatibility_1_6 =
this->Makefile->GetLocalGenerator()
->NeedBackwardsCompatibility(1, 6);
// Always search directly in a generated path.
this->SearchPathSuffixes.push_back("");
// Parse the arguments.
enum Doing { DoingNone, DoingComponents, DoingNames, DoingPaths,
DoingPathSuffixes, DoingConfigs, DoingHints };
Doing doing = DoingNone;
cmsys::RegularExpression version("^[0-9.]+$");
bool haveVersion = false;
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;
this->Compatibility_1_6 = false;
doing = DoingNone;
}
else if(args[i] == "NO_MODULE")
{
this->NoModule = true;
doing = DoingNone;
}
else if(args[i] == "REQUIRED")
{
this->Required = true;
doing = DoingComponents;
}
else if(args[i] == "COMPONENTS")
{
this->Compatibility_1_6 = false;
doing = DoingComponents;
}
else if(args[i] == "NAMES")
{
this->NoModule = true;
this->Compatibility_1_6 = false;
doing = DoingNames;
}
else if(args[i] == "PATHS")
{
this->NoModule = true;
this->Compatibility_1_6 = false;
doing = DoingPaths;
}
else if(args[i] == "HINTS")
{
this->NoModule = true;
this->Compatibility_1_6 = false;
doing = DoingHints;
}
else if(args[i] == "PATH_SUFFIXES")
{
this->NoModule = true;
this->Compatibility_1_6 = false;
doing = DoingPathSuffixes;
}
else if(args[i] == "CONFIGS")
{
this->NoModule = true;
this->Compatibility_1_6 = false;
doing = DoingConfigs;
}
else if(args[i] == "NO_POLICY_SCOPE")
{
this->PolicyScope = false;
this->Compatibility_1_6 = false;
doing = DoingNone;
}
else if(args[i] == "NO_CMAKE_PACKAGE_REGISTRY")
{
this->NoRegistry = true;
this->NoModule = true;
this->Compatibility_1_6 = false;
doing = DoingNone;
}
else if(args[i] == "NO_CMAKE_BUILDS_PATH")
{
this->NoBuilds = true;
this->NoModule = true;
this->Compatibility_1_6 = false;
doing = DoingNone;
}
else if(this->CheckCommonArgument(args[i]))
{
this->NoModule = true;
this->Compatibility_1_6 = false;
doing = DoingNone;
}
else if(doing == DoingComponents)
{
// Set a variable telling the find script this component
// is required.
std::string req_var = this->Name + "_FIND_REQUIRED_" + args[i];
this->AddFindDefinition(req_var.c_str(), "1");
// 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->AddUserPath(args[i], this->UserPaths);
}
else if(doing == DoingHints)
{
this->AddUserPath(args[i], this->UserHints);
}
else if(doing == DoingPathSuffixes)
{
this->AddPathSuffix(args[i]);
}
else if(doing == DoingConfigs)
{
if(args[i].find_first_of(":/\\") != args[i].npos ||
cmSystemTools::GetFilenameLastExtension(args[i]) != ".cmake")
{
cmOStringStream 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.";
return false;
}
this->Configs.push_back(args[i]);
}
else if(!haveVersion && version.find(args[i].c_str()))
{
haveVersion = true;
this->Version = args[i];
}
else
{
cmOStringStream e;
e << "called with invalid argument \"" << args[i].c_str() << "\"";
this->SetError(e.str().c_str());
return false;
}
}
// Ignore EXACT with no version.
if(this->Version.empty() && this->VersionExact)
{
this->VersionExact = false;
this->Makefile->IssueMessage(
cmake::AUTHOR_WARNING, "Ignoring EXACT since no version is requested.");
}
if(this->Version.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.c_str()))
{
// 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.c_str());
// Whether an exact version is required.
std::string exact = this->Name;
exact += "_FIND_VERSION_EXACT";
this->VersionExact = this->Makefile->IsOn(exact.c_str());
}
}
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; // no break!
case 3: this->VersionPatch = parsed_patch; // no break!
case 2: this->VersionMinor = parsed_minor; // no break!
case 1: this->VersionMajor = parsed_major; // no break!
default: break;
}
}
this->SetModuleVariables(components);
// See if there is a Find<package>.cmake module.
if(!this->NoModule)
{
bool foundModule = false;
if(!this->FindModule(foundModule))
{
this->AppendSuccessInformation();
return false;
}
if(foundModule)
{
this->AppendSuccessInformation();
return true;
}
}
// No find module. Assume the project has a CMake config file. Use
// a <package>_DIR cache variable to locate it.
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::vector<std::string>::const_iterator ni = this->Names.begin();
ni != this->Names.end(); ++ni)
{
std::string config = *ni;
config += "Config.cmake";
this->Configs.push_back(config);
config = cmSystemTools::LowerCase(*ni);
config += "-config.cmake";
this->Configs.push_back(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.
bool result = this->HandlePackageMode();
this->AppendSuccessInformation();
return result;
}
//----------------------------------------------------------------------------
void cmFindPackageCommand::SetModuleVariables(const std::string& components)
{
// Store the list of components.
std::string components_var = this->Name + "_FIND_COMPONENTS";
this->AddFindDefinition(components_var.c_str(), 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.c_str(), "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.c_str(), "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.c_str(), this->Version.c_str());
char buf[64];
sprintf(buf, "%u", this->VersionMajor);
this->AddFindDefinition((ver+"_MAJOR").c_str(), buf);
sprintf(buf, "%u", this->VersionMinor);
this->AddFindDefinition((ver+"_MINOR").c_str(), buf);
sprintf(buf, "%u", this->VersionPatch);
this->AddFindDefinition((ver+"_PATCH").c_str(), buf);
sprintf(buf, "%u", this->VersionTweak);
this->AddFindDefinition((ver+"_TWEAK").c_str(), buf);
sprintf(buf, "%u", this->VersionCount);
this->AddFindDefinition((ver+"_COUNT").c_str(), buf);
// Tell the module whether an exact version has been requested.
std::string exact = this->Name;
exact += "_FIND_VERSION_EXACT";
this->AddFindDefinition(exact.c_str(), this->VersionExact? "1":"0");
}
}
//----------------------------------------------------------------------------
void cmFindPackageCommand::AddFindDefinition(const char* 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(std::map<cmStdString, OriginalDef>::iterator
i = this->OriginalDefs.begin(); i != this->OriginalDefs.end(); ++i)
{
OriginalDef const& od = i->second;
if(od.exists)
{
this->Makefile->AddDefinition(i->first.c_str(), od.value.c_str());
}
else
{
this->Makefile->RemoveDefinition(i->first.c_str());
}
}
}
//----------------------------------------------------------------------------
bool cmFindPackageCommand::FindModule(bool& found)
{
std::string module = "Find";
module += this->Name;
module += ".cmake";
std::string mfile = this->Makefile->GetModulesFile(module.c_str());
if ( mfile.size() )
{
// 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.c_str(), "1");
bool result = this->ReadListFile(mfile.c_str(), DoPolicyScope);
this->Makefile->RemoveDefinition(var.c_str());
return result;
}
return true;
}
//----------------------------------------------------------------------------
bool cmFindPackageCommand::HandlePackageMode()
{
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";
if(upperDir == this->Variable)
{
this->Compatibility_1_6 = false;
}
// Try to find the config file.
const char* def = this->Makefile->GetDefinition(this->Variable.c_str());
if(this->Compatibility_1_6 && cmSystemTools::IsOff(def))
{
// Use the setting of the old name of the variable to provide the
// value of the new.
const char* oldDef = this->Makefile->GetDefinition(upperDir.c_str());
if(!cmSystemTools::IsOff(oldDef))
{
this->Makefile->AddDefinition(this->Variable.c_str(), oldDef);
def = this->Makefile->GetDefinition(this->Variable.c_str());
}
}
// Try to load the config file if the directory is known
bool fileFound = false;
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.c_str()))
{
dir = "/" + dir;
dir = this->Makefile->GetCurrentDirectory() + 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.c_str());
}
// Search for the config file if it is not already found.
if(cmSystemTools::IsOff(def) || !fileFound)
{
fileFound = this->FindConfig();
def = this->Makefile->GetDefinition(this->Variable.c_str());
}
// Sanity check.
if(fileFound && this->FileFound.empty())
{
this->Makefile->IssueMessage(
cmake::INTERNAL_ERROR, "fileFound is true but FileFound is empty!");
fileFound = false;
}
// If the directory for the config file was found, try to read the file.
bool result = true;
bool found = false;
if(fileFound)
{
// Set the version variables before loading the config file.
// It may override them.
this->StoreVersionFound();
// Parse the configuration file.
if(this->ReadListFile(this->FileFound.c_str(), DoPolicyScope))
{
// The package has been found.
found = true;
}
else
{
// The configuration file is invalid.
result = false;
}
}
else if(!this->Quiet || this->Required)
{
// The variable is not set.
cmOStringStream e;
// If there are files in ConsideredConfigs, it means that FooConfig.cmake
// have been found, but they didn't have appropriate versions.
if (this->ConsideredConfigs.size() > 0)
{
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(std::vector<ConfigFileInfo>::size_type i=0;
i<this->ConsideredConfigs.size(); i++)
{
e << " " << this->ConsideredConfigs[i].filename
<< ", version: " << this->ConsideredConfigs[i].version << "\n";
}
}
else
{
e << "Could not find ";
if(!this->NoModule)
{
e << "module Find" << this->Name << ".cmake or ";
}
e << "a configuration file for package " << this->Name << ".\n";
if(!this->NoModule)
{
e << "Adjust CMAKE_MODULE_PATH to find Find"
<< this->Name << ".cmake or set ";
}
else
{
e << "Set ";
}
e << this->Variable << " to the directory containing a CMake "
<< "configuration file for " << this->Name << ". ";
if(this->Configs.size() == 1)
{
e << "The file will be called " << this->Configs[0];
}
else
{
e << "The file will have one of the following names:\n";
for(std::vector<std::string>::const_iterator ci=this->Configs.begin();
ci != this->Configs.end(); ++ci)
{
e << " " << *ci << "\n";
}
}
}
this->Makefile->IssueMessage(
this->Required? cmake::FATAL_ERROR : cmake::WARNING, e.str());
}
// Set a variable marking whether the package was found.
std::string foundVar = this->Name;
foundVar += "_FOUND";
this->Makefile->AddDefinition(foundVar.c_str(), 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.c_str(), this->FileFound.c_str());
}
else
{
this->Makefile->RemoveDefinition(fileVar.c_str());
}
// Handle some ancient compatibility stuff.
if(this->Compatibility_1_6)
{
// Listfiles will be looking for the capitalized version of the
// name. Provide it.
this->Makefile->AddDefinition
(upperDir.c_str(),
this->Makefile->GetDefinition(this->Variable.c_str()));
this->Makefile->AddDefinition
(upperFound.c_str(),
this->Makefile->GetDefinition(foundVar.c_str()));
}
#ifdef CMAKE_BUILD_WITH_CMAKE
if(!(upperDir == this->Variable))
{
if(this->Compatibility_1_6)
{
// Listfiles may use the capitalized version of the name.
// Remove any previously added watch.
this->Makefile->GetVariableWatch()->RemoveWatch(
upperDir.c_str(),
cmFindPackageNeedBackwardsCompatibility
);
}
else
{
// Listfiles should not be using the capitalized version of the
// name. Add a watch to warn the user.
this->Makefile->GetVariableWatch()->AddWatch(
upperDir.c_str(),
cmFindPackageNeedBackwardsCompatibility
);
}
}
#endif
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(std::vector<ConfigFileInfo>::size_type i=0;
i<this->ConsideredConfigs.size(); i++)
{
consideredConfigFiles += sep;
consideredVersions += sep;
consideredConfigFiles += this->ConsideredConfigs[i].filename;
consideredVersions += this->ConsideredConfigs[i].version;
sep = ";";
}
this->Makefile->AddDefinition(consideredConfigsVar.c_str(),
consideredConfigFiles.c_str());
this->Makefile->AddDefinition(consideredVersionsVar.c_str(),
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.c_str(),
init.c_str(), help.c_str(),
cmCacheManager::PATH, true);
return found;
}
//----------------------------------------------------------------------------
bool cmFindPackageCommand::FindPrefixedConfig()
{
std::vector<std::string>& prefixes = this->SearchPaths;
for(std::vector<std::string>::const_iterator pi = prefixes.begin();
pi != prefixes.end(); ++pi)
{
if(this->SearchPrefix(*pi))
{
return true;
}
}
return false;
}
//----------------------------------------------------------------------------
bool cmFindPackageCommand::FindFrameworkConfig()
{
std::vector<std::string>& prefixes = this->SearchPaths;
for(std::vector<std::string>::const_iterator i = prefixes.begin();
i != prefixes.end(); ++i)
{
if(this->SearchFrameworkPrefix(*i))
{
return true;
}
}
return false;
}
//----------------------------------------------------------------------------
bool cmFindPackageCommand::FindAppBundleConfig()
{
std::vector<std::string>& prefixes = this->SearchPaths;
for(std::vector<std::string>::const_iterator i = prefixes.begin();
i != prefixes.end(); ++i)
{
if(this->SearchAppBundlePrefix(*i))
{
return true;
}
}
return false;
}
//----------------------------------------------------------------------------
bool cmFindPackageCommand::ReadListFile(const char* f, PolicyScopeRule psr)
{
if(this->Makefile->ReadListFile(this->Makefile->GetCurrentListFile(), f, 0,
!this->PolicyScope || psr == NoPolicyScope))
{
return true;
}
std::string e = "Error reading CMake code from \"";
e += f;
e += "\".";
this->SetError(e.c_str());
return false;
}
//----------------------------------------------------------------------------
void cmFindPackageCommand::AppendToProperty(const char* propertyName)
{
std::string propertyValue;
const char *prop =
this->Makefile->GetCMakeInstance()->GetProperty(propertyName);
if (prop && *prop)
{
propertyValue = prop;
std::vector<std::string> contents;
cmSystemTools::ExpandListArgument(propertyValue, contents, false);
bool alreadyInserted = false;
for(std::vector<std::string>::const_iterator it = contents.begin();
it != contents.end(); ++ it )
{
if (*it == this->Name)
{
alreadyInserted = true;
break;
}
}
if (!alreadyInserted)
{
propertyValue += ";";
propertyValue += this->Name;
}
}
else
{
propertyValue = this->Name;
}
this->Makefile->GetCMakeInstance()->SetProperty(propertyName,
propertyValue.c_str());
}
//----------------------------------------------------------------------------
void cmFindPackageCommand::AppendSuccessInformation()
{
std::string found = this->Name;
found += "_FOUND";
std::string upperFound = cmSystemTools::UpperCase(found);
const char* upperResult = this->Makefile->GetDefinition(upperFound.c_str());
const char* result = this->Makefile->GetDefinition(found.c_str());
if ((cmSystemTools::IsOn(result)) || (cmSystemTools::IsOn(upperResult)))
{
this->AppendToProperty("PACKAGES_FOUND");
if (!this->Quiet)
{
this->AppendToProperty("ENABLED_FEATURES");
}
}
else
{
this->AppendToProperty("PACKAGES_NOT_FOUND");
if (!this->Quiet)
{
this->AppendToProperty("DISABLED_FEATURES");
}
}
// 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->GetCMakeInstance()->SetProperty(versionInfoPropName.c_str(),
versionInfo.c_str());
// Restore original state of "_FIND_" variables we set.
this->RestoreFindDefinitions();
}
//----------------------------------------------------------------------------
void cmFindPackageCommand::ComputePrefixes()
{
this->AddPrefixesCMakeVariable();
this->AddPrefixesCMakeEnvironment();
this->AddPrefixesUserHints();
this->AddPrefixesSystemEnvironment();
this->AddPrefixesRegistry();
this->AddPrefixesBuilds();
this->AddPrefixesCMakeSystemVariable();
this->AddPrefixesUserGuess();
this->ComputeFinalPrefixes();
}
//----------------------------------------------------------------------------
void cmFindPackageCommand::AddPrefixesCMakeEnvironment()
{
if(!this->NoCMakeEnvironmentPath && !this->NoDefaultPath)
{
// Check the environment variable with the same name as the cache
// entry.
std::string env;
if(cmSystemTools::GetEnv(this->Variable.c_str(), env) && env.length() > 0)
{
cmSystemTools::ConvertToUnixSlashes(env);
this->AddPathInternal(env, EnvPath);
}
this->AddEnvPath("CMAKE_PREFIX_PATH");
this->AddEnvPath("CMAKE_FRAMEWORK_PATH");
this->AddEnvPath("CMAKE_APPBUNDLE_PATH");
}
}
//----------------------------------------------------------------------------
void cmFindPackageCommand::AddPrefixesCMakeVariable()
{
if(!this->NoCMakePath && !this->NoDefaultPath)
{
this->AddCMakePath("CMAKE_PREFIX_PATH");
this->AddCMakePath("CMAKE_FRAMEWORK_PATH");
this->AddCMakePath("CMAKE_APPBUNDLE_PATH");
}
}
//----------------------------------------------------------------------------
void cmFindPackageCommand::AddPrefixesSystemEnvironment()
{
if(!this->NoSystemEnvironmentPath && !this->NoDefaultPath)
{
// 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::vector<std::string>::iterator i = tmp.begin();
i != tmp.end(); ++i)
{
std::string const& d = *i;
// If the path is a PREFIX/bin case then add its parent instead.
if((d.size() >= 4 && strcmp(d.c_str()+d.size()-4, "/bin") == 0) ||
(d.size() >= 5 && strcmp(d.c_str()+d.size()-5, "/sbin") == 0))
{
this->AddPathInternal(cmSystemTools::GetFilenamePath(d), EnvPath);
}
else
{
this->AddPathInternal(d, EnvPath);
}
}
}
}
//----------------------------------------------------------------------------
void cmFindPackageCommand::AddPrefixesRegistry()
{
if(this->NoRegistry || this->NoDefaultPath)
{
return;
}
#if defined(_WIN32) && !defined(__CYGWIN__)
this->LoadPackageRegistryWin();
#elif defined(__HAIKU__)
BPath dir;
if (find_directory(B_USER_SETTINGS_DIRECTORY, &dir) == B_OK)
{
dir.Append("cmake/packages");
dir.Append(this->Name.c_str());
this->LoadPackageRegistryDir(dir.Path());
}
#else
if(const char* home = cmSystemTools::GetEnv("HOME"))
{
std::string dir = home;
dir += "/.cmake/packages/";
dir += this->Name;
this->LoadPackageRegistryDir(dir);
}
#endif
}
#if defined(_WIN32) && !defined(__CYGWIN__)
# include <windows.h>
# undef GetCurrentDirectory
//----------------------------------------------------------------------------
void cmFindPackageCommand::LoadPackageRegistryWin()
{
std::string key = "Software\\Kitware\\CMake\\Packages\\";
key += this->Name;
std::set<cmStdString> bad;
HKEY hKey;
if(RegOpenKeyEx(HKEY_CURRENT_USER, key.c_str(),
0, KEY_QUERY_VALUE, &hKey) == ERROR_SUCCESS)
{
DWORD valueType = REG_NONE;
char name[16384];
std::vector<char> data(512);
bool done = false;
DWORD index = 0;
while(!done)
{
DWORD nameSize = static_cast<DWORD>(sizeof(name));
DWORD dataSize = static_cast<DWORD>(data.size()-1);
switch(RegEnumValue(hKey, index, name, &nameSize,
0, &valueType, (BYTE*)&data[0], &dataSize))
{
case ERROR_SUCCESS:
++index;
if(valueType == REG_SZ)
{
data[dataSize] = 0;
cmsys_ios::stringstream ss(&data[0]);
if(this->CheckPackageRegistryEntry(ss))
{
// The entry is okay.
continue;
}
}
bad.insert(name);
break;
case ERROR_MORE_DATA:
data.resize(dataSize+1);
break;
case ERROR_NO_MORE_ITEMS: default: done = true; break;
}
}
RegCloseKey(hKey);
}
// Remove bad values if possible.
if(!bad.empty() &&
RegOpenKeyEx(HKEY_CURRENT_USER, key.c_str(),
0, KEY_SET_VALUE, &hKey) == ERROR_SUCCESS)
{
for(std::set<cmStdString>::const_iterator vi = bad.begin();
vi != bad.end(); ++vi)
{
RegDeleteValue(hKey, vi->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); } }
void Release() { this->File = 0; }
};
//----------------------------------------------------------------------------
void cmFindPackageCommand::LoadPackageRegistryDir(std::string const& dir)
{
cmsys::Directory files;
if(!files.Load(dir.c_str()))
{
return;
}
std::string fname;
for(unsigned long i=0; i < files.GetNumberOfFiles(); ++i)
{
fname = dir;
fname += "/";
fname += files.GetFile(i);
if(!cmSystemTools::FileIsDirectory(fname.c_str()))
{
// Hold this file hostage until it behaves.
cmFindPackageCommandHoldFile holdFile(fname.c_str());
// Load the file.
std::ifstream fin(fname.c_str(), std::ios::in | cmsys_ios_binary);
if(fin && this->CheckPackageRegistryEntry(fin))
{
// The file references an existing package, so release it.
holdFile.Release();
}
}
}
// TODO: Wipe out the directory if it is empty.
}
#endif
//----------------------------------------------------------------------------
bool cmFindPackageCommand::CheckPackageRegistryEntry(std::istream& is)
{
// Parse the content of one package registry entry.
std::string fname;
if(cmSystemTools::GetLineFromStream(is, fname) &&
cmSystemTools::FileIsFullPath(fname.c_str()))
{
// The first line in the stream is the full path to a file or
// directory containing the package.
if(cmSystemTools::FileExists(fname.c_str()))
{
// The path exists. Look for the package here.
if(!cmSystemTools::FileIsDirectory(fname.c_str()))
{
fname = cmSystemTools::GetFilenamePath(fname);
}
this->AddPathInternal(fname, FullPath);
return true;
}
else
{
// 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;
}
}
else
{
// 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::AddPrefixesBuilds()
{
if(!this->NoBuilds && !this->NoDefaultPath)
{
// It is likely that CMake will have recently built the project.
for(int i=0; i <= 10; ++i)
{
cmOStringStream r;
r <<
"[HKEY_CURRENT_USER\\Software\\Kitware\\CMakeSetup\\"
"Settings\\StartPath;WhereBuild" << i << "]";
std::string f = r.str();
cmSystemTools::ExpandRegistryValues(f);
cmSystemTools::ConvertToUnixSlashes(f);
if(cmSystemTools::FileIsFullPath(f.c_str()) &&
cmSystemTools::FileIsDirectory(f.c_str()))
{
this->AddPathInternal(f, FullPath);
}
}
}
}
//----------------------------------------------------------------------------
void cmFindPackageCommand::AddPrefixesCMakeSystemVariable()
{
if(!this->NoCMakeSystemPath && !this->NoDefaultPath)
{
this->AddCMakePath("CMAKE_SYSTEM_PREFIX_PATH");
this->AddCMakePath("CMAKE_SYSTEM_FRAMEWORK_PATH");
this->AddCMakePath("CMAKE_SYSTEM_APPBUNDLE_PATH");
}
}
//----------------------------------------------------------------------------
void cmFindPackageCommand::AddPrefixesUserGuess()
{
// Add guesses specified by the caller.
this->AddPathsInternal(this->UserPaths, CMakePath);
}
//----------------------------------------------------------------------------
void cmFindPackageCommand::AddPrefixesUserHints()
{
// Add hints specified by the caller.
this->AddPathsInternal(this->UserHints, CMakePath);
}
//----------------------------------------------------------------------------
void cmFindPackageCommand::ComputeFinalPrefixes()
{
std::vector<std::string>& prefixes = this->SearchPaths;
// Construct the final set of prefixes.
this->RerootPaths(prefixes);
// Add a trailing slash to all prefixes to aid the search process.
this->AddTrailingSlashes(prefixes);
}
//----------------------------------------------------------------------------
bool cmFindPackageCommand::SearchDirectory(std::string const& dir)
{
assert(!dir.empty() && dir[dir.size()-1] == '/');
// Check each path suffix on this directory.
for(std::vector<std::string>::const_iterator
si = this->SearchPathSuffixes.begin();
si != this->SearchPathSuffixes.end(); ++si)
{
std::string d = dir;
if(!si->empty())
{
d += *si;
d += "/";
}
if(this->CheckDirectory(d))
{
return true;
}
}
return false;
}
//----------------------------------------------------------------------------
bool cmFindPackageCommand::CheckDirectory(std::string const& dir)
{
assert(!dir.empty() && dir[dir.size()-1] == '/');
// 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::vector<std::string>::const_iterator ci = this->Configs.begin();
ci != this->Configs.end(); ++ci)
{
file = dir;
file += "/";
file += *ci;
if(this->DebugMode)
{
fprintf(stderr, "Checking file [%s]\n", file.c_str());
}
if(cmSystemTools::FileExists(file.c_str(), true) &&
this->CheckVersion(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 == false)
&& (cmSystemTools::FileExists(version_file.c_str(), true)))
{
result = this->CheckVersionFile(version_file, version);
haveResult = true;
}
// Look for fooConfigVersion.cmake
version_file = version_file_base;
version_file += "Version.cmake";
if ((haveResult == false)
&& (cmSystemTools::FileExists(version_file.c_str(), true)))
{
result = this->CheckVersionFile(version_file, version);
haveResult = true;
}
// If no version was requested a versionless package is acceptable.
if ((haveResult == false) && (this->Version.empty()))
{
result = true;
haveResult = true;
}
ConfigFileInfo configFileInfo;
configFileInfo.filename = config_file;
configFileInfo.version = version;
this->ConsideredConfigs.push_back(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.c_str(), 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; // no break!
case 3: this->VersionFoundPatch = parsed_patch; // no break!
case 2: this->VersionFoundMinor = parsed_minor; // no break!
case 1: this->VersionFoundMajor = parsed_major; // no break!
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.c_str());
}
else
{
this->Makefile->AddDefinition(ver.c_str(), this->VersionFound.c_str());
}
// Store the version components.
char buf[64];
sprintf(buf, "%u", this->VersionFoundMajor);
this->Makefile->AddDefinition((ver+"_MAJOR").c_str(), buf);
sprintf(buf, "%u", this->VersionFoundMinor);
this->Makefile->AddDefinition((ver+"_MINOR").c_str(), buf);
sprintf(buf, "%u", this->VersionFoundPatch);
this->Makefile->AddDefinition((ver+"_PATCH").c_str(), buf);
sprintf(buf, "%u", this->VersionFoundTweak);
this->Makefile->AddDefinition((ver+"_TWEAK").c_str(), buf);
sprintf(buf, "%u", this->VersionFoundCount);
this->Makefile->AddDefinition((ver+"_COUNT").c_str(), buf);
}
//----------------------------------------------------------------------------
#include <cmsys/Glob.hxx>
#include <cmsys/String.h>
#include <cmsys/auto_ptr.hxx>
class cmFileList;
class cmFileListGeneratorBase
{
public:
virtual ~cmFileListGeneratorBase() {}
protected:
bool Consider(std::string const& fullPath, cmFileList& listing);
private:
bool Search(cmFileList&);
virtual bool Search(std::string const& parent, cmFileList&) = 0;
virtual cmsys::auto_ptr<cmFileListGeneratorBase> Clone() const = 0;
friend class cmFileList;
cmFileListGeneratorBase* SetNext(cmFileListGeneratorBase const& next);
cmsys::auto_ptr<cmFileListGeneratorBase> Next;
};
class cmFileList
{
public:
cmFileList(): First(), Last(0) {}
virtual ~cmFileList() {}
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.get())
{
return this->First->Search(*this);
}
return false;
}
private:
virtual bool Visit(std::string const& fullPath) = 0;
friend class cmFileListGeneratorBase;
cmsys::auto_ptr<cmFileListGeneratorBase> First;
cmFileListGeneratorBase* Last;
};
class cmFindPackageFileList: public cmFileList
{
public:
cmFindPackageFileList(cmFindPackageCommand* fpc,
bool use_suffixes = true):
cmFileList(), FPC(fpc), UseSuffixes(use_suffixes) {}
private:
bool Visit(std::string const& fullPath)
{
if(this->UseSuffixes)
{
return this->FPC->SearchDirectory(fullPath);
}
else
{
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.get())
{
return this->Next->Search(fullPath + "/", listing);
}
else
{
return listing.Visit(fullPath + "/");
}
}
class cmFileListGeneratorFixed: public cmFileListGeneratorBase
{
public:
cmFileListGeneratorFixed(std::string const& str):
cmFileListGeneratorBase(), String(str) {}
cmFileListGeneratorFixed(cmFileListGeneratorFixed const& r):
cmFileListGeneratorBase(), String(r.String) {}
private:
std::string String;
virtual bool Search(std::string const& parent, cmFileList& lister)
{
std::string fullPath = parent + this->String;
return this->Consider(fullPath, lister);
}
virtual cmsys::auto_ptr<cmFileListGeneratorBase> Clone() const
{
cmsys::auto_ptr<cmFileListGeneratorBase>
g(new cmFileListGeneratorFixed(*this));
return g;
}
};
class cmFileListGeneratorEnumerate: public cmFileListGeneratorBase
{
public:
cmFileListGeneratorEnumerate(std::vector<std::string> const& v):
cmFileListGeneratorBase(), Vector(v) {}
cmFileListGeneratorEnumerate(cmFileListGeneratorEnumerate const& r):
cmFileListGeneratorBase(), Vector(r.Vector) {}
private:
std::vector<std::string> const& Vector;
virtual bool Search(std::string const& parent, cmFileList& lister)
{
for(std::vector<std::string>::const_iterator i = this->Vector.begin();
i != this->Vector.end(); ++i)
{
if(this->Consider(parent + *i, lister))
{
return true;
}
}
return false;
}
virtual cmsys::auto_ptr<cmFileListGeneratorBase> Clone() const
{
cmsys::auto_ptr<cmFileListGeneratorBase>
g(new cmFileListGeneratorEnumerate(*this));
return g;
}
};
class cmFileListGeneratorProject: public cmFileListGeneratorBase
{
public:
cmFileListGeneratorProject(std::vector<std::string> const& names):
cmFileListGeneratorBase(), Names(names) {}
cmFileListGeneratorProject(cmFileListGeneratorProject const& r):
cmFileListGeneratorBase(), Names(r.Names) {}
private:
std::vector<std::string> const& Names;
virtual bool Search(std::string const& parent, cmFileList& lister)
{
// Construct a list of matches.
std::vector<std::string> matches;
cmsys::Directory d;
d.Load(parent.c_str());
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::vector<std::string>::const_iterator ni = this->Names.begin();
ni != this->Names.end(); ++ni)
{
if(cmsysString_strncasecmp(fname, ni->c_str(),
ni->length()) == 0)
{
matches.push_back(fname);
}
}
}
for(std::vector<std::string>::const_iterator i = matches.begin();
i != matches.end(); ++i)
{
if(this->Consider(parent + *i, lister))
{
return true;
}
}
return false;
}
virtual cmsys::auto_ptr<cmFileListGeneratorBase> Clone() const
{
cmsys::auto_ptr<cmFileListGeneratorBase>
g(new cmFileListGeneratorProject(*this));
return g;
}
};
class cmFileListGeneratorMacProject: public cmFileListGeneratorBase
{
public:
cmFileListGeneratorMacProject(std::vector<std::string> const& names,
const char* ext):
cmFileListGeneratorBase(), Names(names), Extension(ext) {}
cmFileListGeneratorMacProject(cmFileListGeneratorMacProject const& r):
cmFileListGeneratorBase(), Names(r.Names), Extension(r.Extension) {}
private:
std::vector<std::string> const& Names;
std::string Extension;
virtual bool Search(std::string const& parent, cmFileList& lister)
{
// Construct a list of matches.
std::vector<std::string> matches;
cmsys::Directory d;
d.Load(parent.c_str());
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::vector<std::string>::const_iterator ni = this->Names.begin();
ni != this->Names.end(); ++ni)
{
std::string name = *ni;
name += this->Extension;
if(cmsysString_strcasecmp(fname, name.c_str()) == 0)
{
matches.push_back(fname);
}
}
}
for(std::vector<std::string>::const_iterator i = matches.begin();
i != matches.end(); ++i)
{
if(this->Consider(parent + *i, lister))
{
return true;
}
}
return false;
}
virtual cmsys::auto_ptr<cmFileListGeneratorBase> Clone() const
{
cmsys::auto_ptr<cmFileListGeneratorBase>
g(new cmFileListGeneratorMacProject(*this));
return g;
}
};
class cmFileListGeneratorCaseInsensitive: public cmFileListGeneratorBase
{
public:
cmFileListGeneratorCaseInsensitive(std::string const& str):
cmFileListGeneratorBase(), String(str) {}
cmFileListGeneratorCaseInsensitive(
cmFileListGeneratorCaseInsensitive const& r):
cmFileListGeneratorBase(), String(r.String) {}
private:
std::string String;
virtual bool Search(std::string const& parent, cmFileList& lister)
{
// Look for matching files.
std::vector<std::string> matches;
cmsys::Directory d;
d.Load(parent.c_str());
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;
}
virtual cmsys::auto_ptr<cmFileListGeneratorBase> Clone() const
{
cmsys::auto_ptr<cmFileListGeneratorBase>
g(new cmFileListGeneratorCaseInsensitive(*this));
return g;
}
};
class cmFileListGeneratorGlob: public cmFileListGeneratorBase
{
public:
cmFileListGeneratorGlob(std::string const& str):
cmFileListGeneratorBase(), Pattern(str) {}
cmFileListGeneratorGlob(cmFileListGeneratorGlob const& r):
cmFileListGeneratorBase(), Pattern(r.Pattern) {}
private:
std::string Pattern;
virtual bool Search(std::string const& parent, cmFileList& lister)
{
// 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::vector<std::string>::const_iterator fi = files.begin();
fi != files.end(); ++fi)
{
if(cmSystemTools::FileIsDirectory(fi->c_str()))
{
if(this->Consider(*fi, lister))
{
return true;
}
}
}
return false;
}
virtual cmsys::auto_ptr<cmFileListGeneratorBase> Clone() const
{
cmsys::auto_ptr<cmFileListGeneratorBase>
g(new cmFileListGeneratorGlob(*this));
return g;
}
};
//----------------------------------------------------------------------------
bool cmFindPackageCommand::SearchPrefix(std::string const& prefix_in)
{
assert(!prefix_in.empty() && prefix_in[prefix_in.size()-1] == '/');
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.c_str()))
{
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);
if(lister.Search())
{
return true;
}
}
// PREFIX/(Foo|foo|FOO).*/(cmake|CMake)/
{
cmFindPackageFileList lister(this);
lister
/ cmFileListGeneratorFixed(prefix)
/ cmFileListGeneratorProject(this->Names)
/ cmFileListGeneratorCaseInsensitive("cmake");
if(lister.Search())
{
return true;
}
}
// Construct list of common install locations (lib and share).
std::vector<std::string> common;
if(this->UseLib64Paths)
{
common.push_back("lib64");
}
common.push_back("lib");
common.push_back("share");
// PREFIX/(share|lib)/cmake/(Foo|foo|FOO).*/
{
cmFindPackageFileList lister(this);
lister
/ cmFileListGeneratorFixed(prefix)
/ cmFileListGeneratorEnumerate(common)
/ cmFileListGeneratorFixed("cmake")
/ cmFileListGeneratorProject(this->Names);
if(lister.Search())
{
return true;
}
}
// PREFIX/(share|lib)/(Foo|foo|FOO).*/
{
cmFindPackageFileList lister(this);
lister
/ cmFileListGeneratorFixed(prefix)
/ cmFileListGeneratorEnumerate(common)
/ cmFileListGeneratorProject(this->Names);
if(lister.Search())
{
return true;
}
}
// PREFIX/(share|lib)/(Foo|foo|FOO).*/(cmake|CMake)/
{
cmFindPackageFileList lister(this);
lister
/ cmFileListGeneratorFixed(prefix)
/ cmFileListGeneratorEnumerate(common)
/ cmFileListGeneratorProject(this->Names)
/ cmFileListGeneratorCaseInsensitive("cmake");
if(lister.Search())
{
return true;
}
}
return false;
}
//----------------------------------------------------------------------------
bool cmFindPackageCommand::SearchFrameworkPrefix(std::string const& prefix_in)
{
assert(!prefix_in.empty() && prefix_in[prefix_in.size()-1] == '/');
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[prefix_in.size()-1] == '/');
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.
// TODO: Add registry entries after cmake system search path?
// Currently the user must specify them with the PATHS option.
//
// [HKEY_CURRENT_USER\Software\*\Foo*;InstallDir]
// [HKEY_CURRENT_USER\Software\*\*\Foo*;InstallDir]
// [HKEY_LOCAL_MACHINE\Software\*\Foo*;InstallDir]
// [HKEY_LOCAL_MACHINE\Software\*\*\Foo*;InstallDir]
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