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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 "cmCustomCommandGenerator.h"
#include "cmAlgorithms.h"
#include "cmCustomCommand.h"
#include "cmCustomCommandLines.h"
#include "cmGeneratorExpression.h"
#include "cmGeneratorTarget.h"
#include "cmLocalGenerator.h"
#include "cmMakefile.h"
#include "cmStateTypes.h"
#include "cmStringAlgorithms.h"
#include "cmSystemTools.h"
#include <memory>
#include <stddef.h>
#include <utility>
cmCustomCommandGenerator::cmCustomCommandGenerator(cmCustomCommand const& cc,
std::string config,
cmLocalGenerator* lg)
: CC(cc)
, Config(std::move(config))
, LG(lg)
, OldStyle(cc.GetEscapeOldStyle())
, MakeVars(cc.GetEscapeAllowMakeVars())
, GE(new cmGeneratorExpression(cc.GetBacktrace()))
, EmulatorsWithArguments(cc.GetCommandLines().size())
{
const cmCustomCommandLines& cmdlines = this->CC.GetCommandLines();
for (cmCustomCommandLine const& cmdline : cmdlines) {
cmCustomCommandLine argv;
for (std::string const& clarg : cmdline) {
std::unique_ptr<cmCompiledGeneratorExpression> cge =
this->GE->Parse(clarg);
std::string parsed_arg = cge->Evaluate(this->LG, this->Config);
if (this->CC.GetCommandExpandLists()) {
cmAppend(argv, cmExpandedList(parsed_arg));
} else {
argv.push_back(std::move(parsed_arg));
}
}
// Later code assumes at least one entry exists, but expanding
// lists on an empty command may have left this empty.
// FIXME: Should we define behavior for removing empty commands?
if (argv.empty()) {
argv.push_back(std::string());
}
this->CommandLines.push_back(std::move(argv));
}
std::vector<std::string> depends = this->CC.GetDepends();
for (std::string const& d : depends) {
std::unique_ptr<cmCompiledGeneratorExpression> cge = this->GE->Parse(d);
std::vector<std::string> result =
cmExpandedList(cge->Evaluate(this->LG, this->Config));
for (std::string& it : result) {
if (cmSystemTools::FileIsFullPath(it)) {
it = cmSystemTools::CollapseFullPath(it);
}
}
cmAppend(this->Depends, result);
}
const std::string& workingdirectory = this->CC.GetWorkingDirectory();
if (!workingdirectory.empty()) {
std::unique_ptr<cmCompiledGeneratorExpression> cge =
this->GE->Parse(workingdirectory);
this->WorkingDirectory = cge->Evaluate(this->LG, this->Config);
// Convert working directory to a full path.
if (!this->WorkingDirectory.empty()) {
std::string const& build_dir = this->LG->GetCurrentBinaryDirectory();
this->WorkingDirectory =
cmSystemTools::CollapseFullPath(this->WorkingDirectory, build_dir);
}
}
this->FillEmulatorsWithArguments();
}
cmCustomCommandGenerator::~cmCustomCommandGenerator()
{
delete this->GE;
}
unsigned int cmCustomCommandGenerator::GetNumberOfCommands() const
{
return static_cast<unsigned int>(this->CC.GetCommandLines().size());
}
void cmCustomCommandGenerator::FillEmulatorsWithArguments()
{
if (!this->LG->GetMakefile()->IsOn("CMAKE_CROSSCOMPILING")) {
return;
}
for (unsigned int c = 0; c < this->GetNumberOfCommands(); ++c) {
std::string const& argv0 = this->CommandLines[c][0];
cmGeneratorTarget* target = this->LG->FindGeneratorTargetToUse(argv0);
if (target && target->GetType() == cmStateEnums::EXECUTABLE &&
!target->IsImported()) {
const char* emulator_property =
target->GetProperty("CROSSCOMPILING_EMULATOR");
if (!emulator_property) {
continue;
}
cmExpandList(emulator_property, this->EmulatorsWithArguments[c]);
}
}
}
std::vector<std::string> cmCustomCommandGenerator::GetCrossCompilingEmulator(
unsigned int c) const
{
if (c >= this->EmulatorsWithArguments.size()) {
return std::vector<std::string>();
}
return this->EmulatorsWithArguments[c];
}
const char* cmCustomCommandGenerator::GetArgv0Location(unsigned int c) const
{
std::string const& argv0 = this->CommandLines[c][0];
cmGeneratorTarget* target = this->LG->FindGeneratorTargetToUse(argv0);
if (target && target->GetType() == cmStateEnums::EXECUTABLE &&
(target->IsImported() ||
target->GetProperty("CROSSCOMPILING_EMULATOR") ||
!this->LG->GetMakefile()->IsOn("CMAKE_CROSSCOMPILING"))) {
return target->GetLocation(this->Config);
}
return nullptr;
}
bool cmCustomCommandGenerator::HasOnlyEmptyCommandLines() const
{
for (size_t i = 0; i < this->CommandLines.size(); ++i) {
for (size_t j = 0; j < this->CommandLines[i].size(); ++j) {
if (!this->CommandLines[i][j].empty()) {
return false;
}
}
}
return true;
}
std::string cmCustomCommandGenerator::GetCommand(unsigned int c) const
{
std::vector<std::string> emulator = this->GetCrossCompilingEmulator(c);
if (!emulator.empty()) {
return emulator[0];
}
if (const char* location = this->GetArgv0Location(c)) {
return std::string(location);
}
return this->CommandLines[c][0];
}
std::string escapeForShellOldStyle(const std::string& str)
{
std::string result;
#if defined(_WIN32) && !defined(__CYGWIN__)
// if there are spaces
std::string temp = str;
if (temp.find(" ") != std::string::npos &&
temp.find("\"") == std::string::npos) {
result = "\"";
result += str;
result += "\"";
return result;
}
return str;
#else
for (const char* ch = str.c_str(); *ch != '\0'; ++ch) {
if (*ch == ' ') {
result += '\\';
}
result += *ch;
}
return result;
#endif
}
void cmCustomCommandGenerator::AppendArguments(unsigned int c,
std::string& cmd) const
{
unsigned int offset = 1;
std::vector<std::string> emulator = this->GetCrossCompilingEmulator(c);
if (!emulator.empty()) {
for (unsigned j = 1; j < emulator.size(); ++j) {
cmd += " ";
if (this->OldStyle) {
cmd += escapeForShellOldStyle(emulator[j]);
} else {
cmd += this->LG->EscapeForShell(emulator[j], this->MakeVars);
}
}
offset = 0;
}
cmCustomCommandLine const& commandLine = this->CommandLines[c];
for (unsigned int j = offset; j < commandLine.size(); ++j) {
std::string arg;
if (const char* location = j == 0 ? this->GetArgv0Location(c) : nullptr) {
// GetCommand returned the emulator instead of the argv0 location,
// so transform the latter now.
arg = location;
} else {
arg = commandLine[j];
}
cmd += " ";
if (this->OldStyle) {
cmd += escapeForShellOldStyle(arg);
} else {
cmd += this->LG->EscapeForShell(arg, this->MakeVars);
}
}
}
const char* cmCustomCommandGenerator::GetComment() const
{
return this->CC.GetComment();
}
std::string cmCustomCommandGenerator::GetWorkingDirectory() const
{
return this->WorkingDirectory;
}
std::vector<std::string> const& cmCustomCommandGenerator::GetOutputs() const
{
return this->CC.GetOutputs();
}
std::vector<std::string> const& cmCustomCommandGenerator::GetByproducts() const
{
return this->CC.GetByproducts();
}
std::vector<std::string> const& cmCustomCommandGenerator::GetDepends() const
{
return this->Depends;
}
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