mirror of
https://github.com/reactos/CMake.git
synced 2024-11-24 12:09:48 +00:00
710 lines
22 KiB
C++
710 lines
22 KiB
C++
/* 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 "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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cmCacheManager::cmCacheManager()
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{
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this->CacheMajorVersion = 0;
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this->CacheMinorVersion = 0;
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}
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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.c_str());
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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.c_str());
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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;
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error << " on line " << 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 (const std::string* 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 (const std::string* 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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const std::string* oldDir =
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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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const std::string* dir =
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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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return true;
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}
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const char* cmCacheManager::PersistentProperties[] = { "ADVANCED", "MODIFIED",
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"STRINGS", nullptr };
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bool cmCacheManager::ReadPropertyEntry(std::string const& entryKey,
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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; *p; ++p) {
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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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cmCacheManager::CacheIterator it = this->GetCacheIterator(key);
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if (it.IsAtEnd()) {
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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.Type = cmStateEnums::UNINITIALIZED;
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ne.SetProperty(*p, e.Value.c_str());
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} else {
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// Store this property on its entry.
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it.SetProperty(*p, e.Value.c_str());
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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, CacheIterator i,
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cmMessenger* messenger)
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{
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for (const char** p = cmCacheManager::PersistentProperties; *p; ++p) {
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if (const char* value = i.GetProperty(*p)) {
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std::string helpstring =
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cmStrCat(*p, " property for variable: ", i.GetName());
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cmCacheManager::OutputHelpString(os, helpstring);
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std::string key = cmStrCat(i.GetName(), '-', *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()).c_str(),
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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()).c_str(),
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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()).c_str(),
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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.c_str(),
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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() << std::endl;
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/* clang-format on */
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/* clang-format off */
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fout << "# You can edit this file to change values found and used by cmake."
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<< std::endl
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<< "# If you do not want to change any of the values, simply exit the "
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"editor." << std::endl
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<< "# If you do want to change a value, simply edit, save, and exit "
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"the editor." << std::endl
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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 "
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"TYPE!." << std::endl
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<< "# VALUE is the current value for the KEY.\n\n";
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/* clang-format on */
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fout << "########################\n";
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fout << "# EXTERNAL cache entries\n";
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fout << "########################\n";
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fout << "\n";
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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 (const char* 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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fout << "########################\n";
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fout << "# INTERNAL cache entries\n";
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fout << "########################\n";
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fout << "\n";
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for (cmCacheManager::CacheIterator i = this->NewIterator(); !i.IsAtEnd();
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i.Next()) {
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if (!i.Initialized()) {
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continue;
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}
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cmStateEnums::CacheEntryType t = i.GetType();
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this->WritePropertyEntries(fout, i, messenger);
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if (t == cmStateEnums::INTERNAL) {
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// Format is key:type=value
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if (const char* help = i.GetProperty("HELPSTRING")) {
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cmCacheManager::OutputHelpString(fout, help);
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}
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cmCacheManager::OutputKey(fout, i.GetName());
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fout << ":" << cmState::CacheEntryTypeToString(t) << "=";
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cmCacheManager::OutputValue(fout, i.GetValue());
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fout << "\n";
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cmCacheManager::OutputNewlineTruncationWarning(fout, i.GetName(),
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i.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 || key.find("//") == 0) ? "\"" : "";
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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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auto i = this->Cache.find(key);
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if (i != this->Cache.end()) {
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this->Cache.erase(i);
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}
|
|
}
|
|
|
|
cmCacheManager::CacheEntry* cmCacheManager::GetCacheEntry(
|
|
const std::string& key)
|
|
{
|
|
auto i = this->Cache.find(key);
|
|
if (i != this->Cache.end()) {
|
|
return &i->second;
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
cmCacheManager::CacheIterator cmCacheManager::GetCacheIterator(
|
|
const std::string& key)
|
|
{
|
|
return { *this, key.c_str() };
|
|
}
|
|
|
|
cmCacheManager::CacheIterator cmCacheManager::GetCacheIterator()
|
|
{
|
|
return { *this, nullptr };
|
|
}
|
|
|
|
const std::string* cmCacheManager::GetInitializedCacheValue(
|
|
const std::string& key) const
|
|
{
|
|
auto i = this->Cache.find(key);
|
|
if (i != this->Cache.end() && i->second.Initialized) {
|
|
return &i->second.Value;
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
void cmCacheManager::PrintCache(std::ostream& out) const
|
|
{
|
|
out << "=================================================" << std::endl;
|
|
out << "CMakeCache Contents:" << std::endl;
|
|
for (auto const& i : this->Cache) {
|
|
if (i.second.Type != cmStateEnums::INTERNAL) {
|
|
out << i.first << " = " << i.second.Value << std::endl;
|
|
}
|
|
}
|
|
out << "\n\n";
|
|
out << "To change values in the CMakeCache, " << std::endl
|
|
<< "edit CMakeCache.txt in your output directory.\n";
|
|
out << "=================================================" << std::endl;
|
|
}
|
|
|
|
void cmCacheManager::AddCacheEntry(const std::string& key, const char* value,
|
|
const char* helpString,
|
|
cmStateEnums::CacheEntryType type)
|
|
{
|
|
CacheEntry& e = this->Cache[key];
|
|
if (value) {
|
|
e.Value = value;
|
|
e.Initialized = true;
|
|
} else {
|
|
e.Value.clear();
|
|
}
|
|
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) {
|
|
std::vector<std::string> paths = cmExpandedList(e.Value);
|
|
const char* sep = "";
|
|
e.Value = "";
|
|
for (std::string& i : paths) {
|
|
cmSystemTools::ConvertToUnixSlashes(i);
|
|
e.Value += sep;
|
|
e.Value += i;
|
|
sep = ";";
|
|
}
|
|
} else {
|
|
cmSystemTools::ConvertToUnixSlashes(e.Value);
|
|
}
|
|
}
|
|
e.SetProperty("HELPSTRING",
|
|
helpString
|
|
? helpString
|
|
: "(This variable does not exist and should not be used)");
|
|
}
|
|
|
|
bool cmCacheManager::CacheIterator::IsAtEnd() const
|
|
{
|
|
return this->Position == this->Container.Cache.end();
|
|
}
|
|
|
|
void cmCacheManager::CacheIterator::Begin()
|
|
{
|
|
this->Position = this->Container.Cache.begin();
|
|
}
|
|
|
|
bool cmCacheManager::CacheIterator::Find(const std::string& key)
|
|
{
|
|
this->Position = this->Container.Cache.find(key);
|
|
return !this->IsAtEnd();
|
|
}
|
|
|
|
void cmCacheManager::CacheIterator::Next()
|
|
{
|
|
if (!this->IsAtEnd()) {
|
|
++this->Position;
|
|
}
|
|
}
|
|
|
|
std::vector<std::string> cmCacheManager::CacheIterator::GetPropertyList() const
|
|
{
|
|
return this->GetEntry().GetPropertyList();
|
|
}
|
|
|
|
void cmCacheManager::CacheIterator::SetValue(const char* value)
|
|
{
|
|
if (this->IsAtEnd()) {
|
|
return;
|
|
}
|
|
CacheEntry* entry = &this->GetEntry();
|
|
if (value) {
|
|
entry->Value = value;
|
|
entry->Initialized = true;
|
|
} else {
|
|
entry->Value.clear();
|
|
}
|
|
}
|
|
|
|
bool cmCacheManager::CacheIterator::GetValueAsBool() const
|
|
{
|
|
return cmIsOn(this->GetEntry().Value);
|
|
}
|
|
|
|
std::vector<std::string> cmCacheManager::CacheEntry::GetPropertyList() const
|
|
{
|
|
return this->Properties.GetKeys();
|
|
}
|
|
|
|
const char* cmCacheManager::CacheEntry::GetProperty(
|
|
const std::string& prop) const
|
|
{
|
|
if (prop == "TYPE") {
|
|
return cmState::CacheEntryTypeToString(this->Type).c_str();
|
|
}
|
|
if (prop == "VALUE") {
|
|
return this->Value.c_str();
|
|
}
|
|
return this->Properties.GetPropertyValue(prop);
|
|
}
|
|
|
|
void cmCacheManager::CacheEntry::SetProperty(const std::string& prop,
|
|
const char* value)
|
|
{
|
|
if (prop == "TYPE") {
|
|
this->Type = cmState::StringToCacheEntryType(value ? value : "STRING");
|
|
} else if (prop == "VALUE") {
|
|
this->Value = value ? value : "";
|
|
} else {
|
|
this->Properties.SetProperty(prop, value);
|
|
}
|
|
}
|
|
|
|
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);
|
|
}
|
|
}
|
|
|
|
const char* cmCacheManager::CacheIterator::GetProperty(
|
|
const std::string& prop) const
|
|
{
|
|
if (!this->IsAtEnd()) {
|
|
return this->GetEntry().GetProperty(prop);
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
void cmCacheManager::CacheIterator::SetProperty(const std::string& p,
|
|
const char* v)
|
|
{
|
|
if (!this->IsAtEnd()) {
|
|
this->GetEntry().SetProperty(p, v);
|
|
}
|
|
}
|
|
|
|
void cmCacheManager::CacheIterator::AppendProperty(const std::string& p,
|
|
const std::string& v,
|
|
bool asString)
|
|
{
|
|
if (!this->IsAtEnd()) {
|
|
this->GetEntry().AppendProperty(p, v, asString);
|
|
}
|
|
}
|
|
|
|
bool cmCacheManager::CacheIterator::GetPropertyAsBool(
|
|
const std::string& prop) const
|
|
{
|
|
if (const char* value = this->GetProperty(prop)) {
|
|
return cmIsOn(value);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void cmCacheManager::CacheIterator::SetProperty(const std::string& p, bool v)
|
|
{
|
|
this->SetProperty(p, v ? "ON" : "OFF");
|
|
}
|
|
|
|
bool cmCacheManager::CacheIterator::PropertyExists(
|
|
const std::string& prop) const
|
|
{
|
|
return this->GetProperty(prop) != nullptr;
|
|
}
|