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630 lines
20 KiB
630 lines
20 KiB
/* 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 "cmCacheManager.h"
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#include <algorithm>
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#include <cstdio>
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#include <cstring>
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#include <sstream>
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#include <string>
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#include "cmsys/FStream.hxx"
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#include "cmsys/Glob.hxx"
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#include "cmGeneratedFileStream.h"
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#include "cmList.h"
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#include "cmMessageType.h"
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#include "cmMessenger.h"
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#include "cmState.h"
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#include "cmStringAlgorithms.h"
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#include "cmSystemTools.h"
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#include "cmVersion.h"
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void cmCacheManager::CleanCMakeFiles(const std::string& path)
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{
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std::string glob = cmStrCat(path, "/CMakeFiles/*.cmake");
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cmsys::Glob globIt;
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globIt.FindFiles(glob);
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std::vector<std::string> files = globIt.GetFiles();
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std::for_each(files.begin(), files.end(), cmSystemTools::RemoveFile);
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}
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bool cmCacheManager::LoadCache(const std::string& path, bool internal,
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std::set<std::string>& excludes,
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std::set<std::string>& includes)
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{
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std::string cacheFile = cmStrCat(path, "/CMakeCache.txt");
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// clear the old cache, if we are reading in internal values
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if (internal) {
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this->Cache.clear();
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}
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if (!cmSystemTools::FileExists(cacheFile)) {
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this->CleanCMakeFiles(path);
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return false;
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}
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cmsys::ifstream fin(cacheFile.c_str());
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if (!fin) {
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return false;
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}
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const char* realbuffer;
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std::string buffer;
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std::string entryKey;
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unsigned int lineno = 0;
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while (fin) {
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// Format is key:type=value
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std::string helpString;
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CacheEntry e;
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cmSystemTools::GetLineFromStream(fin, buffer);
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lineno++;
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realbuffer = buffer.c_str();
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while (*realbuffer != '0' &&
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(*realbuffer == ' ' || *realbuffer == '\t' || *realbuffer == '\r' ||
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*realbuffer == '\n')) {
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if (*realbuffer == '\n') {
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lineno++;
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}
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realbuffer++;
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}
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// skip blank lines and comment lines
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if (realbuffer[0] == '#' || realbuffer[0] == 0) {
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continue;
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}
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while (realbuffer[0] == '/' && realbuffer[1] == '/') {
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if ((realbuffer[2] == '\\') && (realbuffer[3] == 'n')) {
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helpString += '\n';
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helpString += &realbuffer[4];
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} else {
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helpString += &realbuffer[2];
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}
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cmSystemTools::GetLineFromStream(fin, buffer);
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lineno++;
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realbuffer = buffer.c_str();
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if (!fin) {
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continue;
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}
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}
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e.SetProperty("HELPSTRING", helpString);
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if (cmState::ParseCacheEntry(realbuffer, entryKey, e.Value, e.Type)) {
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if (excludes.find(entryKey) == excludes.end()) {
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// Load internal values if internal is set.
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// If the entry is not internal to the cache being loaded
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// or if it is in the list of internal entries to be
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// imported, load it.
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if (internal || (e.Type != cmStateEnums::INTERNAL) ||
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(includes.find(entryKey) != includes.end())) {
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// If we are loading the cache from another project,
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// make all loaded entries internal so that it is
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// not visible in the gui
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if (!internal) {
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e.Type = cmStateEnums::INTERNAL;
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helpString = cmStrCat("DO NOT EDIT, ", entryKey,
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" loaded from external file. "
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"To change this value edit this file: ",
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path, "/CMakeCache.txt");
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e.SetProperty("HELPSTRING", helpString);
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}
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if (!this->ReadPropertyEntry(entryKey, e)) {
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e.Initialized = true;
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this->Cache[entryKey] = e;
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}
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}
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}
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} else {
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std::ostringstream error;
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error << "Parse error in cache file " << cacheFile << " on line "
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<< lineno << ". Offending entry: " << realbuffer;
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cmSystemTools::Error(error.str());
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}
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}
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this->CacheMajorVersion = 0;
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this->CacheMinorVersion = 0;
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if (cmValue cmajor =
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this->GetInitializedCacheValue("CMAKE_CACHE_MAJOR_VERSION")) {
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unsigned int v = 0;
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if (sscanf(cmajor->c_str(), "%u", &v) == 1) {
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this->CacheMajorVersion = v;
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}
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if (cmValue cminor =
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this->GetInitializedCacheValue("CMAKE_CACHE_MINOR_VERSION")) {
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if (sscanf(cminor->c_str(), "%u", &v) == 1) {
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this->CacheMinorVersion = v;
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}
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}
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} else {
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// CMake version not found in the list file.
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// Set as version 0.0
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this->AddCacheEntry("CMAKE_CACHE_MINOR_VERSION", "0",
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"Minor version of cmake used to create the "
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"current loaded cache",
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cmStateEnums::INTERNAL);
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this->AddCacheEntry("CMAKE_CACHE_MAJOR_VERSION", "0",
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"Major version of cmake used to create the "
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"current loaded cache",
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cmStateEnums::INTERNAL);
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}
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// check to make sure the cache directory has not
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// been moved
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cmValue oldDir = this->GetInitializedCacheValue("CMAKE_CACHEFILE_DIR");
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if (internal && oldDir) {
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std::string currentcwd = path;
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std::string oldcwd = *oldDir;
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cmSystemTools::ConvertToUnixSlashes(currentcwd);
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currentcwd += "/CMakeCache.txt";
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oldcwd += "/CMakeCache.txt";
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if (!cmSystemTools::SameFile(oldcwd, currentcwd)) {
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cmValue dir = this->GetInitializedCacheValue("CMAKE_CACHEFILE_DIR");
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std::ostringstream message;
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message << "The current CMakeCache.txt directory " << currentcwd
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<< " is different than the directory " << (dir ? *dir : "")
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<< " where CMakeCache.txt was created. This may result "
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"in binaries being created in the wrong place. If you "
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"are not sure, reedit the CMakeCache.txt";
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cmSystemTools::Error(message.str());
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}
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}
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this->CacheLoaded = true;
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return true;
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}
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const char* cmCacheManager::PersistentProperties[] = { "ADVANCED", "MODIFIED",
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"STRINGS" };
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bool cmCacheManager::ReadPropertyEntry(const std::string& entryKey,
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const CacheEntry& e)
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{
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// All property entries are internal.
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if (e.Type != cmStateEnums::INTERNAL) {
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return false;
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}
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const char* end = entryKey.c_str() + entryKey.size();
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for (const char* p : cmCacheManager::PersistentProperties) {
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std::string::size_type plen = strlen(p) + 1;
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if (entryKey.size() > plen && *(end - plen) == '-' &&
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strcmp(end - plen + 1, p) == 0) {
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std::string key = entryKey.substr(0, entryKey.size() - plen);
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if (auto* entry = this->GetCacheEntry(key)) {
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// Store this property on its entry.
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entry->SetProperty(p, e.Value);
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} else {
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// Create an entry and store the property.
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CacheEntry& ne = this->Cache[key];
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ne.SetProperty(p, e.Value);
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}
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return true;
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}
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}
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return false;
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}
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void cmCacheManager::WritePropertyEntries(std::ostream& os,
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const std::string& entryKey,
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const CacheEntry& e,
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cmMessenger* messenger) const
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{
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for (const char* p : cmCacheManager::PersistentProperties) {
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if (cmValue value = e.GetProperty(p)) {
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std::string helpstring =
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cmStrCat(p, " property for variable: ", entryKey);
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cmCacheManager::OutputHelpString(os, helpstring);
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std::string key = cmStrCat(entryKey, '-', p);
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cmCacheManager::OutputKey(os, key);
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os << ":INTERNAL=";
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cmCacheManager::OutputValue(os, *value);
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os << '\n';
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cmCacheManager::OutputNewlineTruncationWarning(os, key, *value,
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messenger);
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}
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}
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}
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bool cmCacheManager::SaveCache(const std::string& path, cmMessenger* messenger)
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{
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std::string cacheFile = cmStrCat(path, "/CMakeCache.txt");
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cmGeneratedFileStream fout(cacheFile);
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fout.SetCopyIfDifferent(true);
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if (!fout) {
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cmSystemTools::Error("Unable to open cache file for save. " + cacheFile);
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cmSystemTools::ReportLastSystemError("");
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return false;
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}
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// before writing the cache, update the version numbers
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// to the
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this->AddCacheEntry("CMAKE_CACHE_MAJOR_VERSION",
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std::to_string(cmVersion::GetMajorVersion()),
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"Major version of cmake used to create the "
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"current loaded cache",
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cmStateEnums::INTERNAL);
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this->AddCacheEntry("CMAKE_CACHE_MINOR_VERSION",
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std::to_string(cmVersion::GetMinorVersion()),
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"Minor version of cmake used to create the "
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"current loaded cache",
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cmStateEnums::INTERNAL);
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this->AddCacheEntry("CMAKE_CACHE_PATCH_VERSION",
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std::to_string(cmVersion::GetPatchVersion()),
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"Patch version of cmake used to create the "
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"current loaded cache",
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cmStateEnums::INTERNAL);
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// Let us store the current working directory so that if somebody
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// Copies it, he will not be surprised
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std::string currentcwd = path;
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if (currentcwd[0] >= 'A' && currentcwd[0] <= 'Z' && currentcwd[1] == ':') {
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// Cast added to avoid compiler warning. Cast is ok because
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// value is guaranteed to fit in char by the above if...
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currentcwd[0] = static_cast<char>(currentcwd[0] - 'A' + 'a');
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}
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cmSystemTools::ConvertToUnixSlashes(currentcwd);
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this->AddCacheEntry("CMAKE_CACHEFILE_DIR", currentcwd,
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"This is the directory where this CMakeCache.txt"
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" was created",
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cmStateEnums::INTERNAL);
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/* clang-format off */
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fout << "# This is the CMakeCache file.\n"
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"# For build in directory: " << currentcwd << "\n"
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"# It was generated by CMake: "
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<< cmSystemTools::GetCMakeCommand()
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<< "\n"
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"# You can edit this file to change values found and used by cmake."
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"\n"
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"# If you do not want to change any of the values, simply exit the "
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"editor.\n"
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"# If you do want to change a value, simply edit, save, and exit "
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"the editor.\n"
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"# The syntax for the file is as follows:\n"
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"# KEY:TYPE=VALUE\n"
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"# KEY is the name of a variable in the cache.\n"
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"# TYPE is a hint to GUIs for the type of VALUE, DO NOT EDIT TYPE!."
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"\n"
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"# VALUE is the current value for the KEY.\n"
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"\n"
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"########################\n"
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"# EXTERNAL cache entries\n"
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"########################\n"
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"\n";
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/* clang-format on */
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for (auto const& i : this->Cache) {
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CacheEntry const& ce = i.second;
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cmStateEnums::CacheEntryType t = ce.Type;
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if (!ce.Initialized) {
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/*
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// This should be added in, but is not for now.
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cmSystemTools::Error("Cache entry \"" + i.first + "\" is uninitialized");
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*/
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} else if (t != cmStateEnums::INTERNAL) {
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// Format is key:type=value
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if (cmValue help = ce.GetProperty("HELPSTRING")) {
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cmCacheManager::OutputHelpString(fout, *help);
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} else {
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cmCacheManager::OutputHelpString(fout, "Missing description");
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}
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cmCacheManager::OutputKey(fout, i.first);
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fout << ':' << cmState::CacheEntryTypeToString(t) << '=';
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cmCacheManager::OutputValue(fout, ce.Value);
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fout << '\n';
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cmCacheManager::OutputNewlineTruncationWarning(fout, i.first, ce.Value,
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messenger);
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fout << '\n';
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}
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}
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fout << "\n"
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"########################\n"
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"# INTERNAL cache entries\n"
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"########################\n"
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"\n";
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for (auto const& i : this->Cache) {
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if (!i.second.Initialized) {
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continue;
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}
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cmStateEnums::CacheEntryType t = i.second.GetType();
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this->WritePropertyEntries(fout, i.first, i.second, messenger);
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if (t == cmStateEnums::INTERNAL) {
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// Format is key:type=value
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if (cmValue help = i.second.GetProperty("HELPSTRING")) {
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cmCacheManager::OutputHelpString(fout, *help);
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}
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cmCacheManager::OutputKey(fout, i.first);
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fout << ':' << cmState::CacheEntryTypeToString(t) << '=';
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cmCacheManager::OutputValue(fout, i.second.GetValue());
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fout << '\n';
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cmCacheManager::OutputNewlineTruncationWarning(
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fout, i.first, i.second.GetValue(), messenger);
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}
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}
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fout << '\n';
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fout.Close();
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std::string checkCacheFile = cmStrCat(path, "/CMakeFiles");
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cmSystemTools::MakeDirectory(checkCacheFile);
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checkCacheFile += "/cmake.check_cache";
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cmsys::ofstream checkCache(checkCacheFile.c_str());
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if (!checkCache) {
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cmSystemTools::Error("Unable to open check cache file for write. " +
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checkCacheFile);
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return false;
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}
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checkCache << "# This file is generated by cmake for dependency checking "
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"of the CMakeCache.txt file\n";
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return true;
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}
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bool cmCacheManager::DeleteCache(const std::string& path)
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{
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std::string cacheFile = path;
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cmSystemTools::ConvertToUnixSlashes(cacheFile);
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std::string cmakeFiles = cacheFile;
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cacheFile += "/CMakeCache.txt";
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if (cmSystemTools::FileExists(cacheFile)) {
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cmSystemTools::RemoveFile(cacheFile);
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// now remove the files in the CMakeFiles directory
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// this cleans up language cache files
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cmakeFiles += "/CMakeFiles";
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if (cmSystemTools::FileIsDirectory(cmakeFiles)) {
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cmSystemTools::RemoveADirectory(cmakeFiles);
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}
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}
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return true;
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}
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void cmCacheManager::OutputKey(std::ostream& fout, std::string const& key)
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{
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// support : in key name by double quoting
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const char* q =
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(key.find(':') != std::string::npos || cmHasLiteralPrefix(key, "//"))
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? "\""
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: "";
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fout << q << key << q;
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}
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void cmCacheManager::OutputValue(std::ostream& fout, std::string const& value)
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{
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// look for and truncate newlines
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std::string::size_type newline = value.find('\n');
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if (newline != std::string::npos) {
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std::string truncated = value.substr(0, newline);
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OutputValueNoNewlines(fout, truncated);
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} else {
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OutputValueNoNewlines(fout, value);
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}
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}
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void cmCacheManager::OutputValueNoNewlines(std::ostream& fout,
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std::string const& value)
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{
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// if value has trailing space or tab, enclose it in single quotes
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if (!value.empty() && (value.back() == ' ' || value.back() == '\t')) {
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fout << '\'' << value << '\'';
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} else {
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fout << value;
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}
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}
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void cmCacheManager::OutputHelpString(std::ostream& fout,
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const std::string& helpString)
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{
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std::string::size_type end = helpString.size();
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if (end == 0) {
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return;
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}
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std::string oneLine;
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std::string::size_type pos = 0;
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for (std::string::size_type i = 0; i <= end; i++) {
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if ((i == end) || (helpString[i] == '\n') ||
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((i - pos >= 60) && (helpString[i] == ' '))) {
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fout << "//";
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if (helpString[pos] == '\n') {
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pos++;
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fout << "\\n";
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}
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oneLine = helpString.substr(pos, i - pos);
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fout << oneLine << '\n';
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pos = i;
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}
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}
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}
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void cmCacheManager::OutputWarningComment(std::ostream& fout,
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std::string const& message,
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bool wrapSpaces)
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{
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std::string::size_type end = message.size();
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std::string oneLine;
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std::string::size_type pos = 0;
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for (std::string::size_type i = 0; i <= end; i++) {
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if ((i == end) || (message[i] == '\n') ||
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((i - pos >= 60) && (message[i] == ' ') && wrapSpaces)) {
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fout << "# ";
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if (message[pos] == '\n') {
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pos++;
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fout << "\\n";
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}
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oneLine = message.substr(pos, i - pos);
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fout << oneLine << '\n';
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pos = i;
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}
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}
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}
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void cmCacheManager::OutputNewlineTruncationWarning(std::ostream& fout,
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std::string const& key,
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std::string const& value,
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cmMessenger* messenger)
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{
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if (value.find('\n') != std::string::npos) {
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if (messenger) {
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std::string message =
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cmStrCat("Value of ", key, " contained a newline; truncating");
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messenger->IssueMessage(MessageType::WARNING, message);
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}
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std::string comment =
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cmStrCat("WARNING: Value of ", key,
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" contained a newline and was truncated. Original value:");
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OutputWarningComment(fout, comment, true);
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OutputWarningComment(fout, value, false);
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}
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}
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void cmCacheManager::RemoveCacheEntry(const std::string& key)
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{
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this->Cache.erase(key);
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}
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cmCacheManager::CacheEntry* cmCacheManager::GetCacheEntry(
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const std::string& key)
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{
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auto i = this->Cache.find(key);
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if (i != this->Cache.end()) {
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return &i->second;
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}
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return nullptr;
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}
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const cmCacheManager::CacheEntry* cmCacheManager::GetCacheEntry(
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const std::string& key) const
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{
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auto i = this->Cache.find(key);
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if (i != this->Cache.end()) {
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|
return &i->second;
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
cmValue cmCacheManager::GetInitializedCacheValue(const std::string& key) const
|
|
{
|
|
if (const auto* entry = this->GetCacheEntry(key)) {
|
|
if (entry->Initialized) {
|
|
return cmValue(entry->GetValue());
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
void cmCacheManager::PrintCache(std::ostream& out) const
|
|
{
|
|
out << "=================================================\n"
|
|
"CMakeCache Contents:\n";
|
|
for (auto const& i : this->Cache) {
|
|
if (i.second.Type != cmStateEnums::INTERNAL) {
|
|
out << i.first << " = " << i.second.Value << '\n';
|
|
}
|
|
}
|
|
out << "\n\n"
|
|
"To change values in the CMakeCache, \n"
|
|
"edit CMakeCache.txt in your output directory.\n"
|
|
"=================================================\n";
|
|
}
|
|
|
|
void cmCacheManager::AddCacheEntry(const std::string& key, cmValue value,
|
|
cmValue helpString,
|
|
cmStateEnums::CacheEntryType type)
|
|
{
|
|
CacheEntry& e = this->Cache[key];
|
|
e.SetValue(value);
|
|
e.Type = type;
|
|
// make sure we only use unix style paths
|
|
if (type == cmStateEnums::FILEPATH || type == cmStateEnums::PATH) {
|
|
if (e.Value.find(';') != std::string::npos) {
|
|
cmList paths{ e.Value };
|
|
for (std::string& i : paths) {
|
|
cmSystemTools::ConvertToUnixSlashes(i);
|
|
}
|
|
e.Value = paths.to_string();
|
|
} else {
|
|
cmSystemTools::ConvertToUnixSlashes(e.Value);
|
|
}
|
|
}
|
|
e.SetProperty(
|
|
"HELPSTRING",
|
|
helpString ? *helpString
|
|
: std::string{
|
|
"(This variable does not exist and should not be used)" });
|
|
}
|
|
|
|
void cmCacheManager::CacheEntry::SetValue(cmValue value)
|
|
{
|
|
if (value) {
|
|
this->Value = *value;
|
|
this->Initialized = true;
|
|
} else {
|
|
this->Value.clear();
|
|
}
|
|
}
|
|
|
|
std::vector<std::string> cmCacheManager::CacheEntry::GetPropertyList() const
|
|
{
|
|
return this->Properties.GetKeys();
|
|
}
|
|
|
|
cmValue cmCacheManager::CacheEntry::GetProperty(const std::string& prop) const
|
|
{
|
|
if (prop == "TYPE") {
|
|
return cmValue(cmState::CacheEntryTypeToString(this->Type));
|
|
}
|
|
if (prop == "VALUE") {
|
|
return cmValue(this->Value);
|
|
}
|
|
return this->Properties.GetPropertyValue(prop);
|
|
}
|
|
|
|
bool cmCacheManager::CacheEntry::GetPropertyAsBool(
|
|
const std::string& prop) const
|
|
{
|
|
return cmIsOn(this->GetProperty(prop));
|
|
}
|
|
|
|
void cmCacheManager::CacheEntry::SetProperty(const std::string& prop,
|
|
const std::string& value)
|
|
{
|
|
if (prop == "TYPE") {
|
|
this->Type = cmState::StringToCacheEntryType(value);
|
|
} else if (prop == "VALUE") {
|
|
this->Value = value;
|
|
} else {
|
|
this->Properties.SetProperty(prop, value);
|
|
}
|
|
}
|
|
|
|
void cmCacheManager::CacheEntry::SetProperty(const std::string& p, bool v)
|
|
{
|
|
this->SetProperty(p, v ? std::string{ "ON" } : std::string{ "OFF" });
|
|
}
|
|
|
|
void cmCacheManager::CacheEntry::SetProperty(const std::string& prop,
|
|
std::nullptr_t)
|
|
{
|
|
if (prop == "TYPE") {
|
|
this->Type = cmState::StringToCacheEntryType("STRING");
|
|
} else if (prop == "VALUE") {
|
|
this->Value = "";
|
|
} else {
|
|
this->Properties.SetProperty(prop, cmValue{ nullptr });
|
|
}
|
|
}
|
|
|
|
void cmCacheManager::CacheEntry::AppendProperty(const std::string& prop,
|
|
const std::string& value,
|
|
bool asString)
|
|
{
|
|
if (prop == "TYPE") {
|
|
this->Type =
|
|
cmState::StringToCacheEntryType(!value.empty() ? value : "STRING");
|
|
} else if (prop == "VALUE") {
|
|
if (!value.empty()) {
|
|
if (!this->Value.empty() && !asString) {
|
|
this->Value += ";";
|
|
}
|
|
this->Value += value;
|
|
}
|
|
} else {
|
|
this->Properties.AppendProperty(prop, value, asString);
|
|
}
|
|
}
|