diff options
| -rw-r--r-- | Source/cmExportCommand.cxx | 149 | ||||
| -rw-r--r-- | Source/cmExportCommand.h | 22 |
2 files changed, 170 insertions, 1 deletions
diff --git a/Source/cmExportCommand.cxx b/Source/cmExportCommand.cxx index 8dfb623..945cfee 100644 --- a/Source/cmExportCommand.cxx +++ b/Source/cmExportCommand.cxx @@ -20,6 +20,8 @@ #include "cmGeneratedFileStream.h" #include "cmake.h" +#include <cmsys/RegularExpression.hxx> + #include "cmExportBuildFileGenerator.h" cmExportCommand::cmExportCommand() @@ -47,6 +49,11 @@ bool cmExportCommand return false; } + if(args[0] == "PACKAGE") + { + return this->HandlePackage(args); + } + std::vector<std::string> unknownArgs; this->Helper.Parse(&args, &unknownArgs); @@ -184,3 +191,145 @@ bool cmExportCommand return true; } + +//---------------------------------------------------------------------------- +bool cmExportCommand::HandlePackage(std::vector<std::string> const& args) +{ + // Parse PACKAGE mode arguments. + enum Doing { DoingNone, DoingPackage }; + Doing doing = DoingPackage; + std::string package; + for(unsigned int i=1; i < args.size(); ++i) + { + if(doing == DoingPackage) + { + package = args[i]; + doing = DoingNone; + } + else + { + cmOStringStream e; + e << "PACKAGE given unknown argumsnt: " << args[i]; + this->SetError(e.str().c_str()); + return false; + } + } + + // Verify the package name. + if(package.empty()) + { + this->SetError("PACKAGE must be given a package name."); + return false; + } + const char* packageExpr = "^[A-Za-z0-9_.-]+$"; + cmsys::RegularExpression packageRegex(packageExpr); + if(!packageRegex.find(package.c_str())) + { + cmOStringStream e; + e << "PACKAGE given invalid package name \"" << package << "\". " + << "Package names must match \"" << packageExpr << "\"."; + this->SetError(e.str().c_str()); + return false; + } + + // We store the current build directory in the registry as a value + // named by a hash of its own content. This is deterministic and is + // unique with high probability. + const char* outDir = this->Makefile->GetCurrentOutputDirectory(); + std::string hash = cmSystemTools::ComputeStringMD5(outDir); +#if defined(_WIN32) && !defined(__CYGWIN__) + this->StorePackageRegistryWin(package, outDir, hash.c_str()); +#else + this->StorePackageRegistryDir(package, outDir, hash.c_str()); +#endif + + return true; +} + +#if defined(_WIN32) && !defined(__CYGWIN__) +# include <windows.h> +# undef GetCurrentDirectory +//---------------------------------------------------------------------------- +void cmExportCommand::ReportRegistryError(std::string const& msg, + std::string const& key, + long err) +{ + cmOStringStream e; + e << msg << "\n" + << " HKEY_CURRENT_USER\\" << key << "\n"; + char winmsg[1024]; + if(FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM | + FORMAT_MESSAGE_IGNORE_INSERTS, 0, err, + MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), + winmsg, 1024, 0) > 0) + { + e << "Windows reported:\n" + << " " << winmsg; + } + this->Makefile->IssueMessage(cmake::WARNING, e.str()); +} + +//---------------------------------------------------------------------------- +void cmExportCommand::StorePackageRegistryWin(std::string const& package, + const char* content, + const char* hash) +{ + std::string key = "Software\\Kitware\\CMake\\Packages\\"; + key += package; + HKEY hKey; + LONG err = RegCreateKeyEx(HKEY_CURRENT_USER, + key.c_str(), 0, 0, REG_OPTION_NON_VOLATILE, + KEY_SET_VALUE, 0, &hKey, 0); + if(err != ERROR_SUCCESS) + { + this->ReportRegistryError( + "Cannot create/open registry key", key, err); + return; + } + err = RegSetValueEx(hKey, hash, 0, REG_SZ, (BYTE const*)content, + static_cast<DWORD>(strlen(content)+1)); + RegCloseKey(hKey); + if(err != ERROR_SUCCESS) + { + cmOStringStream msg; + msg << "Cannot set registry value \"" << hash << "\" under key"; + this->ReportRegistryError(msg.str(), key, err); + return; + } +} +#else +//---------------------------------------------------------------------------- +void cmExportCommand::StorePackageRegistryDir(std::string const& package, + const char* content, + const char* hash) +{ + const char* home = cmSystemTools::GetEnv("HOME"); + if(!home) + { + return; + } + std::string fname = home; + cmSystemTools::ConvertToUnixSlashes(fname); + fname += "/.cmake/packages/"; + fname += package; + cmSystemTools::MakeDirectory(fname.c_str()); + fname += "/"; + fname += hash; + if(!cmSystemTools::FileExists(fname.c_str())) + { + cmGeneratedFileStream entry(fname.c_str(), true); + if(entry) + { + entry << content << "\n"; + } + else + { + cmOStringStream e; + e << "Cannot create package registry file:\n" + << " " << fname << "\n" + << cmSystemTools::GetLastSystemError() << "\n"; + this->Makefile->IssueMessage(cmake::WARNING, e.str()); + } + } +} +#endif diff --git a/Source/cmExportCommand.h b/Source/cmExportCommand.h index 22a93f3..69652cf 100644 --- a/Source/cmExportCommand.h +++ b/Source/cmExportCommand.h @@ -84,7 +84,19 @@ public: "The file created by this command is specific to the build tree and " "should never be installed. " "See the install(EXPORT) command to export targets from an " - "installation tree."; + "installation tree." + "\n" + " export(PACKAGE <name>)\n" + "Store the current build directory in the CMake user package registry " + "for package <name>. " + "The find_package command may consider the directory while searching " + "for package <name>. " + "This helps dependent projects find and use a package from the " + "current project's build tree without help from the user. " + "Note that the entry in the package registry that this command " + "creates works only in conjunction with a package configuration " + "file (<name>Config.cmake) that works with the build tree." + ; } cmTypeMacro(cmExportCommand, cmCommand); @@ -98,6 +110,14 @@ private: friend class cmExportBuildFileGenerator; std::string ErrorMessage; + + bool HandlePackage(std::vector<std::string> const& args); + void StorePackageRegistryWin(std::string const& package, + const char* content, const char* hash); + void StorePackageRegistryDir(std::string const& package, + const char* content, const char* hash); + void ReportRegistryError(std::string const& msg, std::string const& key, + long err); }; |