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-rw-r--r--Source/cmFindPackageCommand.cxx121
1 files changed, 86 insertions, 35 deletions
diff --git a/Source/cmFindPackageCommand.cxx b/Source/cmFindPackageCommand.cxx
index ef16ce8..be47f95 100644
--- a/Source/cmFindPackageCommand.cxx
+++ b/Source/cmFindPackageCommand.cxx
@@ -89,7 +89,7 @@ void cmFindPackageCommand::GenerateDocumentation()
"FIND_XXX", "find_package");
this->CommandDocumentation =
" find_package(<package> [version] [EXACT] [QUIET] [MODULE]\n"
- " [[REQUIRED|COMPONENTS] [components...]]\n"
+ " [REQUIRED] [[COMPONENTS] [components...]]\n"
" [OPTIONAL_COMPONENTS components...]\n"
" [NO_POLICY_SCOPE])\n"
"Finds and loads settings from an external project. "
@@ -102,7 +102,7 @@ void cmFindPackageCommand::GenerateDocumentation()
"package cannot be found."
"\n"
"A package-specific list of required components may be listed after the "
- "COMPONENTS option or directly after the REQUIRED option. "
+ "COMPONENTS option (or after the REQUIRED option if present). "
"Additional optional components may be listed after OPTIONAL_COMPONENTS. "
"Available components and their influence on whether a package is "
"considered to be found are defined by the target package."
@@ -136,7 +136,7 @@ void cmFindPackageCommand::GenerateDocumentation()
"proceeds to Config mode.\n"
"The complete Config mode command signature is:\n"
" find_package(<package> [version] [EXACT] [QUIET]\n"
- " [[REQUIRED|COMPONENTS] [components...]]\n"
+ " [REQUIRED] [[COMPONENTS] [components...]]\n"
" [CONFIG|NO_MODULE]\n"
" [NO_POLICY_SCOPE]\n"
" [NAMES name1 [name2 ...]]\n"
@@ -353,6 +353,29 @@ void cmFindPackageCommand::GenerateDocumentation()
"variable CMAKE_DISABLE_FIND_PACKAGE_<package> to TRUE. See the "
"documentation for the CMAKE_DISABLE_FIND_PACKAGE_<package> variable for "
"more information.\n"
+ "When loading a find module or package configuration file find_package "
+ "defines variables to provide information about the call arguments "
+ "(and restores their original state before returning):\n"
+ " <package>_FIND_REQUIRED = true if REQUIRED option was given\n"
+ " <package>_FIND_QUIETLY = true if QUIET option was given\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"
+ " <package>_FIND_VERSION_EXACT = true if EXACT option was given\n"
+ " <package>_FIND_COMPONENTS = list of requested components\n"
+ " <package>_FIND_REQUIRED_<c> = true if component <c> is required\n"
+ " false if component <c> is optional\n"
+ "In Module mode the loaded find module is responsible to honor the "
+ "request detailed by these variables; see the find module for details. "
+ "In Config mode find_package handles REQUIRED, QUIET, and version "
+ "options automatically but leaves it to the package configuration file "
+ "to handle components in a way that makes sense for the package. "
+ "The package configuration file may set <package>_FOUND to false "
+ "to tell find_package that component requirements are not satisfied."
+ "\n"
"See the cmake_policy() command documentation for discussion of the "
"NO_POLICY_SCOPE option."
;
@@ -1345,41 +1368,73 @@ bool cmFindPackageCommand::ReadListFile(const char* f, PolicyScopeRule psr)
}
//----------------------------------------------------------------------------
-void cmFindPackageCommand::AppendToProperty(const char* propertyName)
+void cmFindPackageCommand::AppendToFoundProperty(bool found)
{
- std::string propertyValue;
- const char *prop =
- this->Makefile->GetCMakeInstance()->GetProperty(propertyName);
- if (prop && *prop)
+ std::vector<std::string> foundContents;
+ const char *foundProp =
+ this->Makefile->GetCMakeInstance()->GetProperty("PACKAGES_FOUND");
+ if (foundProp && *foundProp)
{
- propertyValue = prop;
-
- std::vector<std::string> contents;
- cmSystemTools::ExpandListArgument(propertyValue, contents, false);
+ std::string tmp = foundProp;
- bool alreadyInserted = false;
- for(std::vector<std::string>::const_iterator it = contents.begin();
- it != contents.end(); ++ it )
+ cmSystemTools::ExpandListArgument(tmp, foundContents, false);
+ std::vector<std::string>::iterator nameIt = std::find(
+ foundContents.begin(), foundContents.end(), this->Name);
+ if(nameIt != foundContents.end())
{
- if (*it == this->Name)
- {
- alreadyInserted = true;
- break;
- }
+ foundContents.erase(nameIt);
}
- if (!alreadyInserted)
+ }
+
+ std::vector<std::string> notFoundContents;
+ const char *notFoundProp =
+ this->Makefile->GetCMakeInstance()->GetProperty("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())
{
- propertyValue += ";";
- propertyValue += this->Name;
+ notFoundContents.erase(nameIt);
}
}
+
+ if(found)
+ {
+ foundContents.push_back(this->Name);
+ }
else
{
- propertyValue = this->Name;
+ notFoundContents.push_back(this->Name);
}
- this->Makefile->GetCMakeInstance()->SetProperty(propertyName,
- propertyValue.c_str());
- }
+
+
+ std::string tmp;
+ const char* sep ="";
+ for(size_t i=0; i<foundContents.size(); i++)
+ {
+ tmp += sep;
+ tmp += foundContents[i];
+ sep = ";";
+ }
+
+ this->Makefile->GetCMakeInstance()->SetProperty("PACKAGES_FOUND",
+ tmp.c_str());
+
+ tmp = "";
+ sep = "";
+ for(size_t i=0; i<notFoundContents.size(); i++)
+ {
+ tmp += sep;
+ tmp += notFoundContents[i];
+ sep = ";";
+ }
+ this->Makefile->GetCMakeInstance()->SetProperty("PACKAGES_NOT_FOUND",
+ tmp.c_str());
+}
//----------------------------------------------------------------------------
void cmFindPackageCommand::AppendSuccessInformation()
@@ -1390,14 +1445,10 @@ void cmFindPackageCommand::AppendSuccessInformation()
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");
- }
- else
- {
- this->AppendToProperty("PACKAGES_NOT_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