CMake/Source/cmSearchPath.cxx

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Simplify CMake per-source license notices Per-source copyright/license notice headers that spell out copyright holder names and years are hard to maintain and often out-of-date or plain wrong. Precise contributor information is already maintained automatically by the version control tool. Ultimately it is the receiver of a file who is responsible for determining its licensing status, and per-source notices are merely a convenience. Therefore it is simpler and more accurate for each source to have a generic notice of the license name and references to more detailed information on copyright holders and full license terms. Our `Copyright.txt` file now contains a list of Contributors whose names appeared source-level copyright notices. It also references version control history for more precise information. Therefore we no longer need to spell out the list of Contributors in each source file notice. Replace CMake per-source copyright/license notice headers with a short description of the license and links to `Copyright.txt` and online information available from "https://cmake.org/licensing". The online URL also handles cases of modules being copied out of our source into other projects, so we can drop our notices about replacing links with full license text. Run the `Utilities/Scripts/filter-notices.bash` script to perform the majority of the replacements mechanically. Manually fix up shebang lines and trailing newlines in a few files. Manually update the notices in a few files that the script does not handle.
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/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#include "cmSearchPath.h"
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#include "cmAlgorithms.h"
#include "cmFindCommon.h"
cmSearchPath::cmSearchPath(cmFindCommon* findCmd)
: FC(findCmd)
{
}
cmSearchPath::~cmSearchPath()
{
}
void cmSearchPath::ExtractWithout(const std::set<std::string>& ignore,
std::vector<std::string>& outPaths,
bool clear) const
{
if (clear) {
outPaths.clear();
}
for (std::vector<std::string>::const_iterator p = this->Paths.begin();
p != this->Paths.end(); ++p) {
if (ignore.count(*p) == 0) {
outPaths.push_back(*p);
}
}
}
void cmSearchPath::AddPath(const std::string& path)
{
this->AddPathInternal(path);
}
void cmSearchPath::AddUserPath(const std::string& path)
{
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assert(this->FC != CM_NULLPTR);
std::vector<std::string> outPaths;
// We should view the registry as the target application would view
// it.
cmSystemTools::KeyWOW64 view = cmSystemTools::KeyWOW64_32;
cmSystemTools::KeyWOW64 other_view = cmSystemTools::KeyWOW64_64;
if (this->FC->Makefile->PlatformIs64Bit()) {
view = cmSystemTools::KeyWOW64_64;
other_view = cmSystemTools::KeyWOW64_32;
}
// Expand using the view of the target application.
std::string expanded = path;
cmSystemTools::ExpandRegistryValues(expanded, view);
cmSystemTools::GlobDirs(expanded, outPaths);
// Executables can be either 32-bit or 64-bit, so expand using the
// alternative view.
if (expanded != path && this->FC->CMakePathName == "PROGRAM") {
expanded = path;
cmSystemTools::ExpandRegistryValues(expanded, other_view);
cmSystemTools::GlobDirs(expanded, outPaths);
}
// Process them all from the current directory
for (std::vector<std::string>::const_iterator p = outPaths.begin();
p != outPaths.end(); ++p) {
this->AddPathInternal(*p, this->FC->Makefile->GetCurrentSourceDirectory());
}
}
void cmSearchPath::AddCMakePath(const std::string& variable)
{
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assert(this->FC != CM_NULLPTR);
// Get a path from a CMake variable.
if (const char* value = this->FC->Makefile->GetDefinition(variable)) {
std::vector<std::string> expanded;
cmSystemTools::ExpandListArgument(value, expanded);
for (std::vector<std::string>::const_iterator p = expanded.begin();
p != expanded.end(); ++p) {
this->AddPathInternal(*p,
this->FC->Makefile->GetCurrentSourceDirectory());
}
}
}
void cmSearchPath::AddEnvPath(const std::string& variable)
{
std::vector<std::string> expanded;
cmSystemTools::GetPath(expanded, variable.c_str());
for (std::vector<std::string>::const_iterator p = expanded.begin();
p != expanded.end(); ++p) {
this->AddPathInternal(*p);
}
}
void cmSearchPath::AddCMakePrefixPath(const std::string& variable)
{
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assert(this->FC != CM_NULLPTR);
// Get a path from a CMake variable.
if (const char* value = this->FC->Makefile->GetDefinition(variable)) {
std::vector<std::string> expanded;
cmSystemTools::ExpandListArgument(value, expanded);
this->AddPrefixPaths(expanded,
this->FC->Makefile->GetCurrentSourceDirectory());
}
}
static std::string cmSearchPathStripBin(std::string const& s)
{
// If the path is a PREFIX/bin case then add its parent instead.
if ((cmHasLiteralSuffix(s, "/bin")) || (cmHasLiteralSuffix(s, "/sbin"))) {
return cmSystemTools::GetFilenamePath(s);
}
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return s;
}
void cmSearchPath::AddEnvPrefixPath(const std::string& variable, bool stripBin)
{
std::vector<std::string> expanded;
cmSystemTools::GetPath(expanded, variable.c_str());
if (stripBin) {
std::transform(expanded.begin(), expanded.end(), expanded.begin(),
cmSearchPathStripBin);
}
this->AddPrefixPaths(expanded);
}
void cmSearchPath::AddSuffixes(const std::vector<std::string>& suffixes)
{
std::vector<std::string> inPaths;
inPaths.swap(this->Paths);
this->Paths.reserve(inPaths.size() * (suffixes.size() + 1));
for (std::vector<std::string>::iterator ip = inPaths.begin();
ip != inPaths.end(); ++ip) {
cmSystemTools::ConvertToUnixSlashes(*ip);
// if *i is only / then do not add a //
// this will get incorrectly considered a network
// path on windows and cause huge delays.
std::string p = *ip;
if (!p.empty() && *p.rbegin() != '/') {
p += "/";
}
// Combine with all the suffixes
for (std::vector<std::string>::const_iterator s = suffixes.begin();
s != suffixes.end(); ++s) {
this->Paths.push_back(p + *s);
}
// And now the original w/o any suffix
this->Paths.push_back(*ip);
}
}
void cmSearchPath::AddPrefixPaths(const std::vector<std::string>& paths,
const char* base)
{
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assert(this->FC != CM_NULLPTR);
// default for programs
std::string subdir = "bin";
if (this->FC->CMakePathName == "INCLUDE") {
subdir = "include";
} else if (this->FC->CMakePathName == "LIBRARY") {
subdir = "lib";
} else if (this->FC->CMakePathName == "FRAMEWORK") {
subdir = ""; // ? what to do for frameworks ?
}
for (std::vector<std::string>::const_iterator p = paths.begin();
p != paths.end(); ++p) {
std::string dir = *p;
if (!subdir.empty() && !dir.empty() && *dir.rbegin() != '/') {
dir += "/";
}
if (subdir == "include" || subdir == "lib") {
const char* arch =
this->FC->Makefile->GetDefinition("CMAKE_LIBRARY_ARCHITECTURE");
if (arch && *arch) {
this->AddPathInternal(dir + subdir + "/" + arch, base);
}
}
std::string add = dir + subdir;
if (add != "/") {
this->AddPathInternal(add, base);
}
if (subdir == "bin") {
this->AddPathInternal(dir + "sbin", base);
}
if (!subdir.empty() && *p != "/") {
this->AddPathInternal(*p, base);
}
}
}
void cmSearchPath::AddPathInternal(const std::string& path, const char* base)
{
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assert(this->FC != CM_NULLPTR);
std::string collapsed = cmSystemTools::CollapseFullPath(path, base);
if (collapsed.empty()) {
return;
}
// Insert the path if has not already been emitted.
if (this->FC->SearchPathsEmitted.insert(collapsed).second) {
this->Paths.push_back(collapsed);
}
}