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/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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file Copyright.txt or https://cmake.org/licensing for details. */
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#include "cmGraphVizWriter.h"
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#include <cstddef>
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#include <iostream>
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#include <memory>
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#include <sstream>
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#include <utility>
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#include "cmGeneratedFileStream.h"
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#include "cmGeneratorTarget.h"
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#include "cmGlobalGenerator.h"
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#include "cmLocalGenerator.h"
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#include "cmMakefile.h"
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#include "cmState.h"
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#include "cmStateSnapshot.h"
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#include "cmStringAlgorithms.h"
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#include "cmSystemTools.h"
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#include "cmTarget.h"
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#include "cmake.h"
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namespace {
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enum LinkLibraryScopeType
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{
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LLT_SCOPE_PUBLIC,
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LLT_SCOPE_PRIVATE,
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LLT_SCOPE_INTERFACE
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};
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const char* const GRAPHVIZ_PRIVATE_EDEGE_STYLE = "dashed";
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const char* const GRAPHVIZ_INTERFACE_EDEGE_STYLE = "dotted";
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std::string getLinkLibraryStyle(const LinkLibraryScopeType& type)
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{
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std::string style;
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switch (type) {
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case LLT_SCOPE_PRIVATE:
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style = "[style = " + std::string(GRAPHVIZ_PRIVATE_EDEGE_STYLE) + "]";
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break;
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case LLT_SCOPE_INTERFACE:
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style = "[style = " + std::string(GRAPHVIZ_INTERFACE_EDEGE_STYLE) + "]";
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break;
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default:
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break;
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}
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return style;
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}
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const char* getShapeForTarget(const cmGeneratorTarget* target)
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{
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if (!target) {
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return "ellipse";
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}
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switch (target->GetType()) {
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case cmStateEnums::EXECUTABLE:
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return "house";
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case cmStateEnums::STATIC_LIBRARY:
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return "diamond";
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case cmStateEnums::SHARED_LIBRARY:
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return "polygon";
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case cmStateEnums::MODULE_LIBRARY:
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return "octagon";
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default:
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break;
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}
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return "box";
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}
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std::map<std::string, LinkLibraryScopeType> getScopedLinkLibrariesFromTarget(
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cmTarget* Target, const cmGlobalGenerator* globalGenerator)
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{
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char sep = ';';
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std::map<std::string, LinkLibraryScopeType> tokens;
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size_t start = 0;
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size_t end = 0;
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const char* pInterfaceLinkLibraries =
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Target->GetProperty("INTERFACE_LINK_LIBRARIES");
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const char* pLinkLibraries = Target->GetProperty("LINK_LIBRARIES");
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if (!pInterfaceLinkLibraries && !pLinkLibraries) {
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return tokens; // target is not linked against any other libraries
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}
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// make sure we don't touch a null-ptr
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auto interfaceLinkLibraries =
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std::string(pInterfaceLinkLibraries ? pInterfaceLinkLibraries : "");
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auto linkLibraries = std::string(pLinkLibraries ? pLinkLibraries : "");
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// first extract interfaceLinkLibraries
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while (start < interfaceLinkLibraries.length()) {
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if ((end = interfaceLinkLibraries.find(sep, start)) == std::string::npos) {
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end = interfaceLinkLibraries.length();
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}
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std::string element = interfaceLinkLibraries.substr(start, end - start);
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if (globalGenerator->IsAlias(element)) {
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const auto tgt = globalGenerator->FindTarget(element);
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if (tgt) {
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element = tgt->GetName();
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}
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}
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if (std::string::npos == element.find("$<LINK_ONLY:", 0)) {
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// we assume first, that this library is an interface library.
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// if we find it again in the linklibraries property, we promote it to an
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// public library.
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tokens[element] = LLT_SCOPE_INTERFACE;
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} else {
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// this is an private linked static library.
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// we take care of this case in the second iterator.
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}
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start = end + 1;
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}
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// second extract linkLibraries
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start = 0;
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while (start < linkLibraries.length()) {
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if ((end = linkLibraries.find(sep, start)) == std::string::npos) {
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end = linkLibraries.length();
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}
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std::string element = linkLibraries.substr(start, end - start);
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if (globalGenerator->IsAlias(element)) {
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const auto tgt = globalGenerator->FindTarget(element);
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if (tgt) {
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element = tgt->GetName();
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}
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}
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if (tokens.find(element) == tokens.end()) {
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// this library is not found in interfaceLinkLibraries but in
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// linkLibraries.
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// this results in a private linked library.
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tokens[element] = LLT_SCOPE_PRIVATE;
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} else if (LLT_SCOPE_INTERFACE == tokens[element]) {
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// this library is found in interfaceLinkLibraries and linkLibraries.
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// this results in a public linked library.
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tokens[element] = LLT_SCOPE_PUBLIC;
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} else {
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// private and public linked libraries should not be changed anymore.
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}
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start = end + 1;
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}
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return tokens;
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}
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}
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cmGraphVizWriter::cmGraphVizWriter(const cmGlobalGenerator* globalGenerator)
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: GraphType("digraph")
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, GraphName("GG")
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, GraphHeader("node [\n fontsize = \"12\"\n];")
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, GraphNodePrefix("node")
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, GlobalGenerator(globalGenerator)
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, LocalGenerators(globalGenerator->GetLocalGenerators())
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, GenerateForExecutables(true)
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, GenerateForStaticLibs(true)
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, GenerateForSharedLibs(true)
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, GenerateForModuleLibs(true)
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, GenerateForInterface(true)
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, GenerateForExternals(true)
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, GeneratePerTarget(true)
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, GenerateDependers(true)
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, HaveTargetsAndLibs(false)
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{
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}
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void cmGraphVizWriter::ReadSettings(
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const std::string& settingsFileName,
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const std::string& fallbackSettingsFileName)
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{
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cmake cm(cmake::RoleScript, cmState::Unknown);
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cm.SetHomeDirectory("");
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cm.SetHomeOutputDirectory("");
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cm.GetCurrentSnapshot().SetDefaultDefinitions();
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cmGlobalGenerator ggi(&cm);
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cmMakefile mf(&ggi, cm.GetCurrentSnapshot());
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std::unique_ptr<cmLocalGenerator> lg(ggi.CreateLocalGenerator(&mf));
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std::string inFileName = settingsFileName;
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if (!cmSystemTools::FileExists(inFileName)) {
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inFileName = fallbackSettingsFileName;
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if (!cmSystemTools::FileExists(inFileName)) {
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return;
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}
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}
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if (!mf.ReadListFile(inFileName)) {
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cmSystemTools::Error("Problem opening GraphViz options file: " +
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inFileName);
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return;
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}
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std::cout << "Reading GraphViz options file: " << inFileName << std::endl;
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#define __set_if_set(var, cmakeDefinition) \
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do { \
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const char* value = mf.GetDefinition(cmakeDefinition); \
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if (value) { \
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(var) = value; \
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} \
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} while (false)
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__set_if_set(this->GraphType, "GRAPHVIZ_GRAPH_TYPE");
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__set_if_set(this->GraphName, "GRAPHVIZ_GRAPH_NAME");
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__set_if_set(this->GraphHeader, "GRAPHVIZ_GRAPH_HEADER");
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__set_if_set(this->GraphNodePrefix, "GRAPHVIZ_NODE_PREFIX");
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#define __set_bool_if_set(var, cmakeDefinition) \
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do { \
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const char* value = mf.GetDefinition(cmakeDefinition); \
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if (value) { \
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(var) = mf.IsOn(cmakeDefinition); \
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} \
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} while (false)
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__set_bool_if_set(this->GenerateForExecutables, "GRAPHVIZ_EXECUTABLES");
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__set_bool_if_set(this->GenerateForStaticLibs, "GRAPHVIZ_STATIC_LIBS");
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__set_bool_if_set(this->GenerateForSharedLibs, "GRAPHVIZ_SHARED_LIBS");
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__set_bool_if_set(this->GenerateForModuleLibs, "GRAPHVIZ_MODULE_LIBS");
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__set_bool_if_set(this->GenerateForInterface, "GRAPHVIZ_INTERFACE");
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__set_bool_if_set(this->GenerateForExternals, "GRAPHVIZ_EXTERNAL_LIBS");
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__set_bool_if_set(this->GeneratePerTarget, "GRAPHVIZ_GENERATE_PER_TARGET");
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__set_bool_if_set(this->GenerateDependers, "GRAPHVIZ_GENERATE_DEPENDERS");
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std::string ignoreTargetsRegexes;
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__set_if_set(ignoreTargetsRegexes, "GRAPHVIZ_IGNORE_TARGETS");
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this->TargetsToIgnoreRegex.clear();
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if (!ignoreTargetsRegexes.empty()) {
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std::vector<std::string> ignoreTargetsRegExVector =
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cmExpandedList(ignoreTargetsRegexes);
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for (std::string const& currentRegexString : ignoreTargetsRegExVector) {
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cmsys::RegularExpression currentRegex;
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if (!currentRegex.compile(currentRegexString)) {
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std::cerr << "Could not compile bad regex \"" << currentRegexString
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<< "\"" << std::endl;
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}
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this->TargetsToIgnoreRegex.push_back(std::move(currentRegex));
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}
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}
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}
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// Iterate over all targets and write for each one a graph which shows
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// which other targets depend on it.
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void cmGraphVizWriter::WriteTargetDependersFiles(const std::string& fileName)
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{
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if (!this->GenerateDependers) {
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return;
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}
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this->CollectTargetsAndLibs();
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for (auto const& ptr : this->TargetPtrs) {
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if (ptr.second == nullptr) {
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continue;
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}
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if (!this->GenerateForTargetType(ptr.second->GetType())) {
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continue;
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}
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std::string currentFilename =
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cmStrCat(fileName, '.', ptr.first, ".dependers");
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cmGeneratedFileStream str(currentFilename);
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if (!str) {
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return;
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}
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std::set<std::string> insertedConnections;
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std::set<std::string> insertedNodes;
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std::cout << "Writing " << currentFilename << "..." << std::endl;
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this->WriteHeader(str);
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this->WriteDependerConnections(ptr.first, insertedNodes,
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insertedConnections, str);
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this->WriteFooter(str);
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}
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}
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// Iterate over all targets and write for each one a graph which shows
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// on which targets it depends.
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void cmGraphVizWriter::WritePerTargetFiles(const std::string& fileName)
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{
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if (!this->GeneratePerTarget) {
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return;
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}
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this->CollectTargetsAndLibs();
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for (auto const& ptr : this->TargetPtrs) {
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if (ptr.second == nullptr) {
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continue;
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}
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if (!this->GenerateForTargetType(ptr.second->GetType())) {
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continue;
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}
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std::set<std::string> insertedConnections;
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std::set<std::string> insertedNodes;
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std::string currentFilename = cmStrCat(fileName, '.', ptr.first);
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cmGeneratedFileStream str(currentFilename);
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if (!str) {
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return;
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}
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std::cout << "Writing " << currentFilename << "..." << std::endl;
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this->WriteHeader(str);
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this->WriteConnections(ptr.first, insertedNodes, insertedConnections, str);
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this->WriteFooter(str);
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}
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}
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void cmGraphVizWriter::WriteGlobalFile(const std::string& fileName)
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{
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this->CollectTargetsAndLibs();
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cmGeneratedFileStream str(fileName);
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if (!str) {
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return;
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}
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this->WriteHeader(str);
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std::cout << "Writing " << fileName << "..." << std::endl;
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std::set<std::string> insertedConnections;
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std::set<std::string> insertedNodes;
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for (auto const& ptr : this->TargetPtrs) {
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if (ptr.second == nullptr) {
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continue;
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}
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if (!this->GenerateForTargetType(ptr.second->GetType())) {
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continue;
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}
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this->WriteConnections(ptr.first, insertedNodes, insertedConnections, str);
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}
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this->WriteFooter(str);
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}
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void cmGraphVizWriter::WriteHeader(cmGeneratedFileStream& str) const
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{
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str << this->GraphType << " \"" << this->GraphName << "\" {" << std::endl;
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str << this->GraphHeader << std::endl;
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}
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void cmGraphVizWriter::WriteFooter(cmGeneratedFileStream& str) const
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{
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str << "}" << std::endl;
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}
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void cmGraphVizWriter::WriteConnections(
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const std::string& targetName, std::set<std::string>& insertedNodes,
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std::set<std::string>& insertedConnections, cmGeneratedFileStream& str) const
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{
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auto targetPtrIt = this->TargetPtrs.find(targetName);
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if (targetPtrIt == this->TargetPtrs.end()) // not found at all
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{
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return;
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}
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this->WriteNode(targetName, targetPtrIt->second, insertedNodes, str);
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if (targetPtrIt->second == nullptr) // it's an external library
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{
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return;
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}
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|
|
|
|
|
|
|
std::string myNodeName = this->TargetNamesNodes.find(targetName)->second;
|
|
|
|
std::map<std::string, LinkLibraryScopeType> ll =
|
|
|
|
getScopedLinkLibrariesFromTarget(targetPtrIt->second->Target,
|
|
|
|
GlobalGenerator);
|
|
|
|
|
|
|
|
for (auto const& llit : ll) {
|
|
|
|
const std::string& libName = llit.first;
|
|
|
|
auto libNameIt = this->TargetNamesNodes.find(libName);
|
|
|
|
|
|
|
|
// can happen e.g. if GRAPHVIZ_TARGET_IGNORE_REGEX is used
|
|
|
|
if (libNameIt == this->TargetNamesNodes.end()) {
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
std::string connectionName = cmStrCat(myNodeName, '-', libNameIt->second);
|
|
|
|
if (insertedConnections.find(connectionName) ==
|
|
|
|
insertedConnections.end()) {
|
|
|
|
insertedConnections.insert(connectionName);
|
|
|
|
this->WriteNode(libName, this->TargetPtrs.find(libName)->second,
|
|
|
|
insertedNodes, str);
|
|
|
|
|
|
|
|
str << " \"" << myNodeName << "\" -> \"" << libNameIt->second << "\"";
|
|
|
|
|
|
|
|
str << getLinkLibraryStyle(llit.second);
|
|
|
|
|
|
|
|
str << " // " << targetName << " -> " << libName << std::endl;
|
|
|
|
this->WriteConnections(libName, insertedNodes, insertedConnections, str);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void cmGraphVizWriter::WriteDependerConnections(
|
|
|
|
const std::string& targetName, std::set<std::string>& insertedNodes,
|
|
|
|
std::set<std::string>& insertedConnections, cmGeneratedFileStream& str) const
|
|
|
|
{
|
|
|
|
auto targetPtrIt = this->TargetPtrs.find(targetName);
|
|
|
|
|
|
|
|
if (targetPtrIt == this->TargetPtrs.end()) // not found at all
|
|
|
|
{
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
this->WriteNode(targetName, targetPtrIt->second, insertedNodes, str);
|
|
|
|
|
|
|
|
if (targetPtrIt->second == nullptr) // it's an external library
|
|
|
|
{
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
std::string myNodeName = this->TargetNamesNodes.find(targetName)->second;
|
|
|
|
|
|
|
|
// now search who links against me
|
|
|
|
for (auto const& tptr : this->TargetPtrs) {
|
|
|
|
if (tptr.second == nullptr) {
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!this->GenerateForTargetType(tptr.second->GetType())) {
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Now we have a target, check whether it links against targetName.
|
|
|
|
// If so, draw a connection, and then continue with dependers on that one.
|
|
|
|
std::map<std::string, LinkLibraryScopeType> ll =
|
|
|
|
getScopedLinkLibrariesFromTarget(tptr.second->Target, GlobalGenerator);
|
|
|
|
|
|
|
|
for (auto const& llit : ll) {
|
|
|
|
if (llit.first == targetName) {
|
|
|
|
// So this target links against targetName.
|
|
|
|
auto dependerNodeNameIt = this->TargetNamesNodes.find(tptr.first);
|
|
|
|
|
|
|
|
if (dependerNodeNameIt != this->TargetNamesNodes.end()) {
|
|
|
|
std::string connectionName =
|
|
|
|
cmStrCat(dependerNodeNameIt->second, '-', myNodeName);
|
|
|
|
|
|
|
|
if (insertedConnections.find(connectionName) ==
|
|
|
|
insertedConnections.end()) {
|
|
|
|
insertedConnections.insert(connectionName);
|
|
|
|
this->WriteNode(tptr.first, tptr.second, insertedNodes, str);
|
|
|
|
|
|
|
|
str << " \"" << dependerNodeNameIt->second << "\" -> \""
|
|
|
|
<< myNodeName << "\"";
|
|
|
|
str << " // " << targetName << " -> " << tptr.first << std::endl;
|
|
|
|
str << getLinkLibraryStyle(llit.second);
|
|
|
|
this->WriteDependerConnections(tptr.first, insertedNodes,
|
|
|
|
insertedConnections, str);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void cmGraphVizWriter::WriteNode(const std::string& targetName,
|
|
|
|
const cmGeneratorTarget* target,
|
|
|
|
std::set<std::string>& insertedNodes,
|
|
|
|
cmGeneratedFileStream& str) const
|
|
|
|
{
|
|
|
|
if (insertedNodes.find(targetName) == insertedNodes.end()) {
|
|
|
|
insertedNodes.insert(targetName);
|
|
|
|
auto nameIt = this->TargetNamesNodes.find(targetName);
|
|
|
|
|
|
|
|
str << " \"" << nameIt->second << "\" [ label=\"" << targetName
|
|
|
|
<< "\" shape=\"" << getShapeForTarget(target) << "\"];" << std::endl;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void cmGraphVizWriter::CollectTargetsAndLibs()
|
|
|
|
{
|
|
|
|
if (!this->HaveTargetsAndLibs) {
|
|
|
|
this->HaveTargetsAndLibs = true;
|
|
|
|
int cnt = this->CollectAllTargets();
|
|
|
|
if (this->GenerateForExternals) {
|
|
|
|
this->CollectAllExternalLibs(cnt);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
int cmGraphVizWriter::CollectAllTargets()
|
|
|
|
{
|
|
|
|
int cnt = 0;
|
|
|
|
// First pass get the list of all cmake targets
|
|
|
|
for (cmLocalGenerator* lg : this->LocalGenerators) {
|
|
|
|
const std::vector<cmGeneratorTarget*>& targets = lg->GetGeneratorTargets();
|
|
|
|
for (cmGeneratorTarget* target : targets) {
|
|
|
|
const std::string& realTargetName = target->GetName();
|
|
|
|
if (this->IgnoreThisTarget(realTargetName)) {
|
|
|
|
// Skip ignored targets
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
// std::cout << "Found target: " << tit->first << std::endl;
|
|
|
|
std::ostringstream ostr;
|
|
|
|
ostr << this->GraphNodePrefix << cnt++;
|
|
|
|
this->TargetNamesNodes[realTargetName] = ostr.str();
|
|
|
|
this->TargetPtrs[realTargetName] = target;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return cnt;
|
|
|
|
}
|
|
|
|
|
|
|
|
int cmGraphVizWriter::CollectAllExternalLibs(int cnt)
|
|
|
|
{
|
|
|
|
// Ok, now find all the stuff we link to that is not in cmake
|
|
|
|
for (cmLocalGenerator* lg : this->LocalGenerators) {
|
|
|
|
const std::vector<cmGeneratorTarget*>& targets = lg->GetGeneratorTargets();
|
|
|
|
for (cmGeneratorTarget* target : targets) {
|
|
|
|
const std::string& realTargetName = target->GetName();
|
|
|
|
if (this->IgnoreThisTarget(realTargetName)) {
|
|
|
|
// Skip ignored targets
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
const cmTarget::LinkLibraryVectorType* ll =
|
|
|
|
&(target->Target->GetOriginalLinkLibraries());
|
|
|
|
for (auto const& llit : *ll) {
|
|
|
|
std::string libName = llit.first;
|
|
|
|
if (this->IgnoreThisTarget(libName)) {
|
|
|
|
// Skip ignored targets
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (GlobalGenerator->IsAlias(libName)) {
|
|
|
|
const auto tgt = GlobalGenerator->FindTarget(libName);
|
|
|
|
if (tgt) {
|
|
|
|
libName = tgt->GetName();
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
auto tarIt = this->TargetPtrs.find(libName);
|
|
|
|
if (tarIt == this->TargetPtrs.end()) {
|
|
|
|
std::ostringstream ostr;
|
|
|
|
ostr << this->GraphNodePrefix << cnt++;
|
|
|
|
this->TargetNamesNodes[libName] = ostr.str();
|
|
|
|
this->TargetPtrs[libName] = nullptr;
|
|
|
|
// str << " \"" << ostr << "\" [ label=\"" << libName
|
|
|
|
// << "\" shape=\"ellipse\"];" << std::endl;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return cnt;
|
|
|
|
}
|
|
|
|
|
|
|
|
bool cmGraphVizWriter::IgnoreThisTarget(const std::string& name)
|
|
|
|
{
|
|
|
|
for (cmsys::RegularExpression& regEx : this->TargetsToIgnoreRegex) {
|
|
|
|
if (regEx.is_valid()) {
|
|
|
|
if (regEx.find(name)) {
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
bool cmGraphVizWriter::GenerateForTargetType(
|
|
|
|
cmStateEnums::TargetType targetType) const
|
|
|
|
{
|
|
|
|
switch (targetType) {
|
|
|
|
case cmStateEnums::EXECUTABLE:
|
|
|
|
return this->GenerateForExecutables;
|
|
|
|
case cmStateEnums::STATIC_LIBRARY:
|
|
|
|
return this->GenerateForStaticLibs;
|
|
|
|
case cmStateEnums::SHARED_LIBRARY:
|
|
|
|
return this->GenerateForSharedLibs;
|
|
|
|
case cmStateEnums::MODULE_LIBRARY:
|
|
|
|
return this->GenerateForModuleLibs;
|
|
|
|
case cmStateEnums::INTERFACE_LIBRARY:
|
|
|
|
return this->GenerateForInterface;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
return false;
|
|
|
|
}
|