https://github.com/Kitware/CMake
Tip revision: a4231943117f5ba3dd0fdc6c8b1824334162b69f authored by Brad King on 04 June 2019, 16:29:02 UTC
Merge branch 'ctest_xml_tweaks' into release-3.15
Merge branch 'ctest_xml_tweaks' into release-3.15
Tip revision: a423194
cmFileCommand.cxx
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#include "cmFileCommand.h"
#include "cm_kwiml.h"
#include "cm_static_string_view.hxx"
#include "cmsys/FStream.hxx"
#include "cmsys/Glob.hxx"
#include "cmsys/RegularExpression.hxx"
#include <algorithm>
#include <assert.h>
#include <cmath>
#include <ctype.h>
#include <memory> // IWYU pragma: keep
#include <sstream>
#include <stdio.h>
#include <stdlib.h>
#include <utility>
#include <vector>
#include "cmAlgorithms.h"
#include "cmArgumentParser.h"
#include "cmCryptoHash.h"
#include "cmFileCopier.h"
#include "cmFileInstaller.h"
#include "cmFileLockPool.h"
#include "cmFileTimes.h"
#include "cmGeneratorExpression.h"
#include "cmGlobalGenerator.h"
#include "cmHexFileConverter.h"
#include "cmListFileCache.h"
#include "cmMakefile.h"
#include "cmMessageType.h"
#include "cmPolicies.h"
#include "cmRange.h"
#include "cmSystemTools.h"
#include "cmTimestamp.h"
#include "cm_sys_stat.h"
#include "cmake.h"
#if defined(CMAKE_BUILD_WITH_CMAKE)
# include "cmCurl.h"
# include "cmFileLockResult.h"
# include "cm_curl.h"
#endif
#if defined(CMAKE_USE_ELF_PARSER)
# include "cmELF.h"
#endif
#if defined(_WIN32)
# include <windows.h>
#endif
#if defined(_WIN32)
// libcurl doesn't support file:// urls for unicode filenames on Windows.
// Convert string from UTF-8 to ACP if this is a file:// URL.
static std::string fix_file_url_windows(const std::string& url)
{
std::string ret = url;
if (strncmp(url.c_str(), "file://", 7) == 0) {
std::wstring wurl = cmsys::Encoding::ToWide(url);
if (!wurl.empty()) {
int mblen =
WideCharToMultiByte(CP_ACP, 0, wurl.c_str(), -1, NULL, 0, NULL, NULL);
if (mblen > 0) {
std::vector<char> chars(mblen);
mblen = WideCharToMultiByte(CP_ACP, 0, wurl.c_str(), -1, &chars[0],
mblen, NULL, NULL);
if (mblen > 0) {
ret = &chars[0];
}
}
}
}
return ret;
}
#endif
// cmLibraryCommand
bool cmFileCommand::InitialPass(std::vector<std::string> const& args,
cmExecutionStatus&)
{
if (args.size() < 2) {
this->SetError("must be called with at least two arguments.");
return false;
}
std::string const& subCommand = args[0];
if (subCommand == "WRITE") {
return this->HandleWriteCommand(args, false);
}
if (subCommand == "APPEND") {
return this->HandleWriteCommand(args, true);
}
if (subCommand == "DOWNLOAD") {
return this->HandleDownloadCommand(args);
}
if (subCommand == "UPLOAD") {
return this->HandleUploadCommand(args);
}
if (subCommand == "READ") {
return this->HandleReadCommand(args);
}
if (subCommand == "MD5" || subCommand == "SHA1" || subCommand == "SHA224" ||
subCommand == "SHA256" || subCommand == "SHA384" ||
subCommand == "SHA512" || subCommand == "SHA3_224" ||
subCommand == "SHA3_256" || subCommand == "SHA3_384" ||
subCommand == "SHA3_512") {
return this->HandleHashCommand(args);
}
if (subCommand == "STRINGS") {
return this->HandleStringsCommand(args);
}
if (subCommand == "GLOB") {
return this->HandleGlobCommand(args, false);
}
if (subCommand == "GLOB_RECURSE") {
return this->HandleGlobCommand(args, true);
}
if (subCommand == "MAKE_DIRECTORY") {
return this->HandleMakeDirectoryCommand(args);
}
if (subCommand == "RENAME") {
return this->HandleRename(args);
}
if (subCommand == "REMOVE") {
return this->HandleRemove(args, false);
}
if (subCommand == "REMOVE_RECURSE") {
return this->HandleRemove(args, true);
}
if (subCommand == "COPY") {
return this->HandleCopyCommand(args);
}
if (subCommand == "INSTALL") {
return this->HandleInstallCommand(args);
}
if (subCommand == "DIFFERENT") {
return this->HandleDifferentCommand(args);
}
if (subCommand == "RPATH_CHANGE" || subCommand == "CHRPATH") {
return this->HandleRPathChangeCommand(args);
}
if (subCommand == "RPATH_CHECK") {
return this->HandleRPathCheckCommand(args);
}
if (subCommand == "RPATH_REMOVE") {
return this->HandleRPathRemoveCommand(args);
}
if (subCommand == "READ_ELF") {
return this->HandleReadElfCommand(args);
}
if (subCommand == "RELATIVE_PATH") {
return this->HandleRelativePathCommand(args);
}
if (subCommand == "TO_CMAKE_PATH") {
return this->HandleCMakePathCommand(args, false);
}
if (subCommand == "TO_NATIVE_PATH") {
return this->HandleCMakePathCommand(args, true);
}
if (subCommand == "TOUCH") {
return this->HandleTouchCommand(args, true);
}
if (subCommand == "TOUCH_NOCREATE") {
return this->HandleTouchCommand(args, false);
}
if (subCommand == "TIMESTAMP") {
return this->HandleTimestampCommand(args);
}
if (subCommand == "GENERATE") {
return this->HandleGenerateCommand(args);
}
if (subCommand == "LOCK") {
return this->HandleLockCommand(args);
}
if (subCommand == "SIZE") {
return this->HandleSizeCommand(args);
}
if (subCommand == "READ_SYMLINK") {
return this->HandleReadSymlinkCommand(args);
}
if (subCommand == "CREATE_LINK") {
return this->HandleCreateLinkCommand(args);
}
std::string e = "does not recognize sub-command " + subCommand;
this->SetError(e);
return false;
}
bool cmFileCommand::HandleWriteCommand(std::vector<std::string> const& args,
bool append)
{
std::vector<std::string>::const_iterator i = args.begin();
i++; // Get rid of subcommand
std::string fileName = *i;
if (!cmsys::SystemTools::FileIsFullPath(*i)) {
fileName = this->Makefile->GetCurrentSourceDirectory();
fileName += "/" + *i;
}
i++;
if (!this->Makefile->CanIWriteThisFile(fileName)) {
std::string e =
"attempted to write a file: " + fileName + " into a source directory.";
this->SetError(e);
cmSystemTools::SetFatalErrorOccured();
return false;
}
std::string dir = cmSystemTools::GetFilenamePath(fileName);
cmSystemTools::MakeDirectory(dir);
mode_t mode = 0;
bool writable = false;
// Set permissions to writable
if (cmSystemTools::GetPermissions(fileName, mode)) {
#if defined(_MSC_VER) || defined(__MINGW32__)
writable = (mode & S_IWRITE) != 0;
mode_t newMode = mode | S_IWRITE;
#else
writable = mode & S_IWUSR;
mode_t newMode = mode | S_IWUSR | S_IWGRP;
#endif
if (!writable) {
cmSystemTools::SetPermissions(fileName, newMode);
}
}
// If GetPermissions fails, pretend like it is ok. File open will fail if
// the file is not writable
cmsys::ofstream file(fileName.c_str(),
append ? std::ios::app : std::ios::out);
if (!file) {
std::string error = "failed to open for writing (";
error += cmSystemTools::GetLastSystemError();
error += "):\n ";
error += fileName;
this->SetError(error);
return false;
}
std::string message = cmJoin(cmMakeRange(i, args.end()), std::string());
file << message;
if (!file) {
std::string error = "write failed (";
error += cmSystemTools::GetLastSystemError();
error += "):\n ";
error += fileName;
this->SetError(error);
return false;
}
file.close();
if (mode && !writable) {
cmSystemTools::SetPermissions(fileName, mode);
}
return true;
}
bool cmFileCommand::HandleReadCommand(std::vector<std::string> const& args)
{
if (args.size() < 3) {
this->SetError("READ must be called with at least two additional "
"arguments");
return false;
}
std::string const& fileNameArg = args[1];
std::string const& variable = args[2];
struct Arguments
{
std::string Offset;
std::string Limit;
bool Hex = false;
};
static auto const parser = cmArgumentParser<Arguments>{}
.Bind("OFFSET"_s, &Arguments::Offset)
.Bind("LIMIT"_s, &Arguments::Limit)
.Bind("HEX"_s, &Arguments::Hex);
Arguments const arguments = parser.Parse(cmMakeRange(args).advance(3));
std::string fileName = fileNameArg;
if (!cmsys::SystemTools::FileIsFullPath(fileName)) {
fileName = this->Makefile->GetCurrentSourceDirectory();
fileName += "/" + fileNameArg;
}
// Open the specified file.
#if defined(_WIN32) || defined(__CYGWIN__)
cmsys::ifstream file(fileName.c_str(),
arguments.Hex ? (std::ios::binary | std::ios::in)
: std::ios::in);
#else
cmsys::ifstream file(fileName.c_str());
#endif
if (!file) {
std::string error = "failed to open for reading (";
error += cmSystemTools::GetLastSystemError();
error += "):\n ";
error += fileName;
this->SetError(error);
return false;
}
// is there a limit?
long sizeLimit = -1;
if (!arguments.Limit.empty()) {
sizeLimit = atoi(arguments.Limit.c_str());
}
// is there an offset?
long offset = 0;
if (!arguments.Offset.empty()) {
offset = atoi(arguments.Offset.c_str());
}
file.seekg(offset, std::ios::beg); // explicit ios::beg for IBM VisualAge 6
std::string output;
if (arguments.Hex) {
// Convert part of the file into hex code
char c;
while ((sizeLimit != 0) && (file.get(c))) {
char hex[4];
sprintf(hex, "%.2x", c & 0xff);
output += hex;
if (sizeLimit > 0) {
sizeLimit--;
}
}
} else {
std::string line;
bool has_newline = false;
while (
sizeLimit != 0 &&
cmSystemTools::GetLineFromStream(file, line, &has_newline, sizeLimit)) {
if (sizeLimit > 0) {
sizeLimit = sizeLimit - static_cast<long>(line.size());
if (has_newline) {
sizeLimit--;
}
if (sizeLimit < 0) {
sizeLimit = 0;
}
}
output += line;
if (has_newline) {
output += "\n";
}
}
}
this->Makefile->AddDefinition(variable, output.c_str());
return true;
}
bool cmFileCommand::HandleHashCommand(std::vector<std::string> const& args)
{
#if defined(CMAKE_BUILD_WITH_CMAKE)
if (args.size() != 3) {
std::ostringstream e;
e << args[0] << " requires a file name and output variable";
this->SetError(e.str());
return false;
}
std::unique_ptr<cmCryptoHash> hash(cmCryptoHash::New(args[0].c_str()));
if (hash) {
std::string out = hash->HashFile(args[1]);
if (!out.empty()) {
this->Makefile->AddDefinition(args[2], out.c_str());
return true;
}
std::ostringstream e;
e << args[0] << " failed to read file \"" << args[1]
<< "\": " << cmSystemTools::GetLastSystemError();
this->SetError(e.str());
}
return false;
#else
std::ostringstream e;
e << args[0] << " not available during bootstrap";
this->SetError(e.str());
return false;
#endif
}
bool cmFileCommand::HandleStringsCommand(std::vector<std::string> const& args)
{
if (args.size() < 3) {
this->SetError("STRINGS requires a file name and output variable");
return false;
}
// Get the file to read.
std::string fileName = args[1];
if (!cmsys::SystemTools::FileIsFullPath(fileName)) {
fileName = this->Makefile->GetCurrentSourceDirectory();
fileName += "/" + args[1];
}
// Get the variable in which to store the results.
std::string outVar = args[2];
// Parse the options.
enum
{
arg_none,
arg_limit_input,
arg_limit_output,
arg_limit_count,
arg_length_minimum,
arg_length_maximum,
arg__maximum,
arg_regex,
arg_encoding
};
unsigned int minlen = 0;
unsigned int maxlen = 0;
int limit_input = -1;
int limit_output = -1;
unsigned int limit_count = 0;
cmsys::RegularExpression regex;
bool have_regex = false;
bool newline_consume = false;
bool hex_conversion_enabled = true;
enum
{
encoding_none = cmsys::FStream::BOM_None,
encoding_utf8 = cmsys::FStream::BOM_UTF8,
encoding_utf16le = cmsys::FStream::BOM_UTF16LE,
encoding_utf16be = cmsys::FStream::BOM_UTF16BE,
encoding_utf32le = cmsys::FStream::BOM_UTF32LE,
encoding_utf32be = cmsys::FStream::BOM_UTF32BE
};
int encoding = encoding_none;
int arg_mode = arg_none;
for (unsigned int i = 3; i < args.size(); ++i) {
if (args[i] == "LIMIT_INPUT") {
arg_mode = arg_limit_input;
} else if (args[i] == "LIMIT_OUTPUT") {
arg_mode = arg_limit_output;
} else if (args[i] == "LIMIT_COUNT") {
arg_mode = arg_limit_count;
} else if (args[i] == "LENGTH_MINIMUM") {
arg_mode = arg_length_minimum;
} else if (args[i] == "LENGTH_MAXIMUM") {
arg_mode = arg_length_maximum;
} else if (args[i] == "REGEX") {
arg_mode = arg_regex;
} else if (args[i] == "NEWLINE_CONSUME") {
newline_consume = true;
arg_mode = arg_none;
} else if (args[i] == "NO_HEX_CONVERSION") {
hex_conversion_enabled = false;
arg_mode = arg_none;
} else if (args[i] == "ENCODING") {
arg_mode = arg_encoding;
} else if (arg_mode == arg_limit_input) {
if (sscanf(args[i].c_str(), "%d", &limit_input) != 1 ||
limit_input < 0) {
std::ostringstream e;
e << "STRINGS option LIMIT_INPUT value \"" << args[i]
<< "\" is not an unsigned integer.";
this->SetError(e.str());
return false;
}
arg_mode = arg_none;
} else if (arg_mode == arg_limit_output) {
if (sscanf(args[i].c_str(), "%d", &limit_output) != 1 ||
limit_output < 0) {
std::ostringstream e;
e << "STRINGS option LIMIT_OUTPUT value \"" << args[i]
<< "\" is not an unsigned integer.";
this->SetError(e.str());
return false;
}
arg_mode = arg_none;
} else if (arg_mode == arg_limit_count) {
int count;
if (sscanf(args[i].c_str(), "%d", &count) != 1 || count < 0) {
std::ostringstream e;
e << "STRINGS option LIMIT_COUNT value \"" << args[i]
<< "\" is not an unsigned integer.";
this->SetError(e.str());
return false;
}
limit_count = count;
arg_mode = arg_none;
} else if (arg_mode == arg_length_minimum) {
int len;
if (sscanf(args[i].c_str(), "%d", &len) != 1 || len < 0) {
std::ostringstream e;
e << "STRINGS option LENGTH_MINIMUM value \"" << args[i]
<< "\" is not an unsigned integer.";
this->SetError(e.str());
return false;
}
minlen = len;
arg_mode = arg_none;
} else if (arg_mode == arg_length_maximum) {
int len;
if (sscanf(args[i].c_str(), "%d", &len) != 1 || len < 0) {
std::ostringstream e;
e << "STRINGS option LENGTH_MAXIMUM value \"" << args[i]
<< "\" is not an unsigned integer.";
this->SetError(e.str());
return false;
}
maxlen = len;
arg_mode = arg_none;
} else if (arg_mode == arg_regex) {
if (!regex.compile(args[i])) {
std::ostringstream e;
e << "STRINGS option REGEX value \"" << args[i]
<< "\" could not be compiled.";
this->SetError(e.str());
return false;
}
have_regex = true;
arg_mode = arg_none;
} else if (arg_mode == arg_encoding) {
if (args[i] == "UTF-8") {
encoding = encoding_utf8;
} else if (args[i] == "UTF-16LE") {
encoding = encoding_utf16le;
} else if (args[i] == "UTF-16BE") {
encoding = encoding_utf16be;
} else if (args[i] == "UTF-32LE") {
encoding = encoding_utf32le;
} else if (args[i] == "UTF-32BE") {
encoding = encoding_utf32be;
} else {
std::ostringstream e;
e << "STRINGS option ENCODING \"" << args[i] << "\" not recognized.";
this->SetError(e.str());
return false;
}
arg_mode = arg_none;
} else {
std::ostringstream e;
e << "STRINGS given unknown argument \"" << args[i] << "\"";
this->SetError(e.str());
return false;
}
}
if (hex_conversion_enabled) {
// TODO: should work without temp file, but just on a memory buffer
std::string binaryFileName = this->Makefile->GetCurrentBinaryDirectory();
binaryFileName += "/CMakeFiles";
binaryFileName += "/FileCommandStringsBinaryFile";
if (cmHexFileConverter::TryConvert(fileName, binaryFileName)) {
fileName = binaryFileName;
}
}
// Open the specified file.
#if defined(_WIN32) || defined(__CYGWIN__)
cmsys::ifstream fin(fileName.c_str(), std::ios::in | std::ios::binary);
#else
cmsys::ifstream fin(fileName.c_str());
#endif
if (!fin) {
std::ostringstream e;
e << "STRINGS file \"" << fileName << "\" cannot be read.";
this->SetError(e.str());
return false;
}
// If BOM is found and encoding was not specified, use the BOM
int bom_found = cmsys::FStream::ReadBOM(fin);
if (encoding == encoding_none && bom_found != cmsys::FStream::BOM_None) {
encoding = bom_found;
}
unsigned int bytes_rem = 0;
if (encoding == encoding_utf16le || encoding == encoding_utf16be) {
bytes_rem = 1;
}
if (encoding == encoding_utf32le || encoding == encoding_utf32be) {
bytes_rem = 3;
}
// Parse strings out of the file.
int output_size = 0;
std::vector<std::string> strings;
std::string s;
while ((!limit_count || strings.size() < limit_count) &&
(limit_input < 0 || static_cast<int>(fin.tellg()) < limit_input) &&
fin) {
std::string current_str;
int c = fin.get();
for (unsigned int i = 0; i < bytes_rem; ++i) {
int c1 = fin.get();
if (!fin) {
fin.putback(static_cast<char>(c1));
break;
}
c = (c << 8) | c1;
}
if (encoding == encoding_utf16le) {
c = ((c & 0xFF) << 8) | ((c & 0xFF00) >> 8);
} else if (encoding == encoding_utf32le) {
c = (((c & 0xFF) << 24) | ((c & 0xFF00) << 8) | ((c & 0xFF0000) >> 8) |
((c & 0xFF000000) >> 24));
}
if (c == '\r') {
// Ignore CR character to make output always have UNIX newlines.
continue;
}
if (c >= 0 && c <= 0xFF &&
(isprint(c) || c == '\t' || (c == '\n' && newline_consume))) {
// This is an ASCII character that may be part of a string.
// Cast added to avoid compiler warning. Cast is ok because
// c is guaranteed to fit in char by the above if...
current_str += static_cast<char>(c);
} else if (encoding == encoding_utf8) {
// Check for UTF-8 encoded string (up to 4 octets)
static const unsigned char utf8_check_table[3][2] = {
{ 0xE0, 0xC0 },
{ 0xF0, 0xE0 },
{ 0xF8, 0xF0 },
};
// how many octets are there?
unsigned int num_utf8_bytes = 0;
for (unsigned int j = 0; num_utf8_bytes == 0 && j < 3; j++) {
if ((c & utf8_check_table[j][0]) == utf8_check_table[j][1]) {
num_utf8_bytes = j + 2;
}
}
// get subsequent octets and check that they are valid
for (unsigned int j = 0; j < num_utf8_bytes; j++) {
if (j != 0) {
c = fin.get();
if (!fin || (c & 0xC0) != 0x80) {
fin.putback(static_cast<char>(c));
break;
}
}
current_str += static_cast<char>(c);
}
// if this was an invalid utf8 sequence, discard the data, and put
// back subsequent characters
if ((current_str.length() != num_utf8_bytes)) {
for (unsigned int j = 0; j < current_str.size() - 1; j++) {
c = current_str[current_str.size() - 1 - j];
fin.putback(static_cast<char>(c));
}
current_str.clear();
}
}
if (c == '\n' && !newline_consume) {
// The current line has been terminated. Check if the current
// string matches the requirements. The length may now be as
// low as zero since blank lines are allowed.
if (s.length() >= minlen && (!have_regex || regex.find(s))) {
output_size += static_cast<int>(s.size()) + 1;
if (limit_output >= 0 && output_size >= limit_output) {
s.clear();
break;
}
strings.push_back(s);
}
// Reset the string to empty.
s.clear();
} else if (current_str.empty()) {
// A non-string character has been found. Check if the current
// string matches the requirements. We require that the length
// be at least one no matter what the user specified.
if (s.length() >= minlen && !s.empty() &&
(!have_regex || regex.find(s))) {
output_size += static_cast<int>(s.size()) + 1;
if (limit_output >= 0 && output_size >= limit_output) {
s.clear();
break;
}
strings.push_back(s);
}
// Reset the string to empty.
s.clear();
} else {
s += current_str;
}
if (maxlen > 0 && s.size() == maxlen) {
// Terminate a string if the maximum length is reached.
if (s.length() >= minlen && (!have_regex || regex.find(s))) {
output_size += static_cast<int>(s.size()) + 1;
if (limit_output >= 0 && output_size >= limit_output) {
s.clear();
break;
}
strings.push_back(s);
}
s.clear();
}
}
// If there is a non-empty current string we have hit the end of the
// input file or the input size limit. Check if the current string
// matches the requirements.
if ((!limit_count || strings.size() < limit_count) && !s.empty() &&
s.length() >= minlen && (!have_regex || regex.find(s))) {
output_size += static_cast<int>(s.size()) + 1;
if (limit_output < 0 || output_size < limit_output) {
strings.push_back(s);
}
}
// Encode the result in a CMake list.
const char* sep = "";
std::string output;
for (std::string const& sr : strings) {
// Separate the strings in the output to make it a list.
output += sep;
sep = ";";
// Store the string in the output, but escape semicolons to
// make sure it is a list.
for (char i : sr) {
if (i == ';') {
output += '\\';
}
output += i;
}
}
// Save the output in a makefile variable.
this->Makefile->AddDefinition(outVar, output.c_str());
return true;
}
bool cmFileCommand::HandleGlobCommand(std::vector<std::string> const& args,
bool recurse)
{
// File commands has at least one argument
assert(args.size() > 1);
std::vector<std::string>::const_iterator i = args.begin();
i++; // Get rid of subcommand
std::string variable = *i;
i++;
cmsys::Glob g;
g.SetRecurse(recurse);
bool explicitFollowSymlinks = false;
cmPolicies::PolicyStatus status =
this->Makefile->GetPolicyStatus(cmPolicies::CMP0009);
if (recurse) {
switch (status) {
case cmPolicies::REQUIRED_IF_USED:
case cmPolicies::REQUIRED_ALWAYS:
case cmPolicies::NEW:
g.RecurseThroughSymlinksOff();
break;
case cmPolicies::OLD:
case cmPolicies::WARN:
g.RecurseThroughSymlinksOn();
break;
}
}
std::vector<std::string> files;
bool configureDepends = false;
bool warnConfigureLate = false;
bool warnFollowedSymlinks = false;
const cmake::WorkingMode workingMode =
this->Makefile->GetCMakeInstance()->GetWorkingMode();
while (i != args.end()) {
if (*i == "LIST_DIRECTORIES") {
++i; // skip LIST_DIRECTORIES
if (i != args.end()) {
if (cmSystemTools::IsOn(*i)) {
g.SetListDirs(true);
g.SetRecurseListDirs(true);
} else if (cmSystemTools::IsOff(*i)) {
g.SetListDirs(false);
g.SetRecurseListDirs(false);
} else {
this->SetError("LIST_DIRECTORIES missing bool value.");
return false;
}
++i;
} else {
this->SetError("LIST_DIRECTORIES missing bool value.");
return false;
}
} else if (*i == "FOLLOW_SYMLINKS") {
++i; // skip FOLLOW_SYMLINKS
if (recurse) {
explicitFollowSymlinks = true;
g.RecurseThroughSymlinksOn();
if (i == args.end()) {
this->SetError(
"GLOB_RECURSE requires a glob expression after FOLLOW_SYMLINKS.");
return false;
}
}
} else if (*i == "RELATIVE") {
++i; // skip RELATIVE
if (i == args.end()) {
this->SetError("GLOB requires a directory after the RELATIVE tag.");
return false;
}
g.SetRelative(i->c_str());
++i;
if (i == args.end()) {
this->SetError("GLOB requires a glob expression after the directory.");
return false;
}
} else if (*i == "CONFIGURE_DEPENDS") {
// Generated build system depends on glob results
if (!configureDepends && warnConfigureLate) {
this->Makefile->IssueMessage(
MessageType::AUTHOR_WARNING,
"CONFIGURE_DEPENDS flag was given after a glob expression was "
"already evaluated.");
}
if (workingMode != cmake::NORMAL_MODE) {
this->Makefile->IssueMessage(
MessageType::FATAL_ERROR,
"CONFIGURE_DEPENDS is invalid for script and find package modes.");
return false;
}
configureDepends = true;
++i;
if (i == args.end()) {
this->SetError(
"GLOB requires a glob expression after CONFIGURE_DEPENDS.");
return false;
}
} else {
std::string expr = *i;
if (!cmsys::SystemTools::FileIsFullPath(*i)) {
expr = this->Makefile->GetCurrentSourceDirectory();
// Handle script mode
if (!expr.empty()) {
expr += "/" + *i;
} else {
expr = *i;
}
}
cmsys::Glob::GlobMessages globMessages;
g.FindFiles(expr, &globMessages);
if (!globMessages.empty()) {
bool shouldExit = false;
for (cmsys::Glob::Message const& globMessage : globMessages) {
if (globMessage.type == cmsys::Glob::cyclicRecursion) {
this->Makefile->IssueMessage(
MessageType::AUTHOR_WARNING,
"Cyclic recursion detected while globbing for '" + *i + "':\n" +
globMessage.content);
} else {
this->Makefile->IssueMessage(
MessageType::FATAL_ERROR,
"Error has occurred while globbing for '" + *i + "' - " +
globMessage.content);
shouldExit = true;
}
}
if (shouldExit) {
return false;
}
}
if (recurse && !explicitFollowSymlinks &&
g.GetFollowedSymlinkCount() != 0) {
warnFollowedSymlinks = true;
}
std::vector<std::string>& foundFiles = g.GetFiles();
cmAppend(files, foundFiles);
if (configureDepends) {
std::sort(foundFiles.begin(), foundFiles.end());
foundFiles.erase(std::unique(foundFiles.begin(), foundFiles.end()),
foundFiles.end());
this->Makefile->GetCMakeInstance()->AddGlobCacheEntry(
recurse, (recurse ? g.GetRecurseListDirs() : g.GetListDirs()),
(recurse ? g.GetRecurseThroughSymlinks() : false),
(g.GetRelative() ? g.GetRelative() : ""), expr, foundFiles, variable,
this->Makefile->GetBacktrace());
} else {
warnConfigureLate = true;
}
++i;
}
}
switch (status) {
case cmPolicies::REQUIRED_IF_USED:
case cmPolicies::REQUIRED_ALWAYS:
case cmPolicies::NEW:
// Correct behavior, yay!
break;
case cmPolicies::OLD:
// Probably not really the expected behavior, but the author explicitly
// asked for the old behavior... no warning.
case cmPolicies::WARN:
// Possibly unexpected old behavior *and* we actually traversed
// symlinks without being explicitly asked to: warn the author.
if (warnFollowedSymlinks) {
this->Makefile->IssueMessage(
MessageType::AUTHOR_WARNING,
cmPolicies::GetPolicyWarning(cmPolicies::CMP0009));
}
break;
}
std::sort(files.begin(), files.end());
files.erase(std::unique(files.begin(), files.end()), files.end());
this->Makefile->AddDefinition(variable, cmJoin(files, ";").c_str());
return true;
}
bool cmFileCommand::HandleMakeDirectoryCommand(
std::vector<std::string> const& args)
{
// File command has at least one argument
assert(args.size() > 1);
std::string expr;
for (std::string const& arg :
cmMakeRange(args).advance(1)) // Get rid of subcommand
{
const std::string* cdir = &arg;
if (!cmsys::SystemTools::FileIsFullPath(arg)) {
expr = this->Makefile->GetCurrentSourceDirectory();
expr += "/" + arg;
cdir = &expr;
}
if (!this->Makefile->CanIWriteThisFile(*cdir)) {
std::string e = "attempted to create a directory: " + *cdir +
" into a source directory.";
this->SetError(e);
cmSystemTools::SetFatalErrorOccured();
return false;
}
if (!cmSystemTools::MakeDirectory(*cdir)) {
std::string error = "problem creating directory: " + *cdir;
this->SetError(error);
return false;
}
}
return true;
}
bool cmFileCommand::HandleTouchCommand(std::vector<std::string> const& args,
bool create)
{
// File command has at least one argument
assert(args.size() > 1);
for (std::string const& arg :
cmMakeRange(args).advance(1)) // Get rid of subcommand
{
std::string tfile = arg;
if (!cmsys::SystemTools::FileIsFullPath(tfile)) {
tfile = this->Makefile->GetCurrentSourceDirectory();
tfile += "/" + arg;
}
if (!this->Makefile->CanIWriteThisFile(tfile)) {
std::string e =
"attempted to touch a file: " + tfile + " in a source directory.";
this->SetError(e);
cmSystemTools::SetFatalErrorOccured();
return false;
}
if (!cmSystemTools::Touch(tfile, create)) {
std::string error = "problem touching file: " + tfile;
this->SetError(error);
return false;
}
}
return true;
}
bool cmFileCommand::HandleDifferentCommand(
std::vector<std::string> const& args)
{
/*
FILE(DIFFERENT <variable> FILES <lhs> <rhs>)
*/
// Evaluate arguments.
const char* file_lhs = nullptr;
const char* file_rhs = nullptr;
const char* var = nullptr;
enum Doing
{
DoingNone,
DoingVar,
DoingFileLHS,
DoingFileRHS
};
Doing doing = DoingVar;
for (unsigned int i = 1; i < args.size(); ++i) {
if (args[i] == "FILES") {
doing = DoingFileLHS;
} else if (doing == DoingVar) {
var = args[i].c_str();
doing = DoingNone;
} else if (doing == DoingFileLHS) {
file_lhs = args[i].c_str();
doing = DoingFileRHS;
} else if (doing == DoingFileRHS) {
file_rhs = args[i].c_str();
doing = DoingNone;
} else {
std::ostringstream e;
e << "DIFFERENT given unknown argument " << args[i];
this->SetError(e.str());
return false;
}
}
if (!var) {
this->SetError("DIFFERENT not given result variable name.");
return false;
}
if (!file_lhs || !file_rhs) {
this->SetError("DIFFERENT not given FILES option with two file names.");
return false;
}
// Compare the files.
const char* result =
cmSystemTools::FilesDiffer(file_lhs, file_rhs) ? "1" : "0";
this->Makefile->AddDefinition(var, result);
return true;
}
bool cmFileCommand::HandleCopyCommand(std::vector<std::string> const& args)
{
cmFileCopier copier(this);
return copier.Run(args);
}
bool cmFileCommand::HandleRPathChangeCommand(
std::vector<std::string> const& args)
{
// Evaluate arguments.
std::string file;
const char* oldRPath = nullptr;
const char* newRPath = nullptr;
enum Doing
{
DoingNone,
DoingFile,
DoingOld,
DoingNew
};
Doing doing = DoingNone;
for (unsigned int i = 1; i < args.size(); ++i) {
if (args[i] == "OLD_RPATH") {
doing = DoingOld;
} else if (args[i] == "NEW_RPATH") {
doing = DoingNew;
} else if (args[i] == "FILE") {
doing = DoingFile;
} else if (doing == DoingFile) {
file = args[i];
doing = DoingNone;
} else if (doing == DoingOld) {
oldRPath = args[i].c_str();
doing = DoingNone;
} else if (doing == DoingNew) {
newRPath = args[i].c_str();
doing = DoingNone;
} else {
std::ostringstream e;
e << "RPATH_CHANGE given unknown argument " << args[i];
this->SetError(e.str());
return false;
}
}
if (file.empty()) {
this->SetError("RPATH_CHANGE not given FILE option.");
return false;
}
if (!oldRPath) {
this->SetError("RPATH_CHANGE not given OLD_RPATH option.");
return false;
}
if (!newRPath) {
this->SetError("RPATH_CHANGE not given NEW_RPATH option.");
return false;
}
if (!cmSystemTools::FileExists(file, true)) {
std::ostringstream e;
e << "RPATH_CHANGE given FILE \"" << file << "\" that does not exist.";
this->SetError(e.str());
return false;
}
bool success = true;
cmFileTimes const ft(file);
std::string emsg;
bool changed;
if (!cmSystemTools::ChangeRPath(file, oldRPath, newRPath, &emsg, &changed)) {
std::ostringstream e;
/* clang-format off */
e << "RPATH_CHANGE could not write new RPATH:\n"
<< " " << newRPath << "\n"
<< "to the file:\n"
<< " " << file << "\n"
<< emsg;
/* clang-format on */
this->SetError(e.str());
success = false;
}
if (success) {
if (changed) {
std::string message = "Set runtime path of \"";
message += file;
message += "\" to \"";
message += newRPath;
message += "\"";
this->Makefile->DisplayStatus(message, -1);
}
ft.Store(file);
}
return success;
}
bool cmFileCommand::HandleRPathRemoveCommand(
std::vector<std::string> const& args)
{
// Evaluate arguments.
std::string file;
enum Doing
{
DoingNone,
DoingFile
};
Doing doing = DoingNone;
for (unsigned int i = 1; i < args.size(); ++i) {
if (args[i] == "FILE") {
doing = DoingFile;
} else if (doing == DoingFile) {
file = args[i];
doing = DoingNone;
} else {
std::ostringstream e;
e << "RPATH_REMOVE given unknown argument " << args[i];
this->SetError(e.str());
return false;
}
}
if (file.empty()) {
this->SetError("RPATH_REMOVE not given FILE option.");
return false;
}
if (!cmSystemTools::FileExists(file, true)) {
std::ostringstream e;
e << "RPATH_REMOVE given FILE \"" << file << "\" that does not exist.";
this->SetError(e.str());
return false;
}
bool success = true;
cmFileTimes const ft(file);
std::string emsg;
bool removed;
if (!cmSystemTools::RemoveRPath(file, &emsg, &removed)) {
std::ostringstream e;
/* clang-format off */
e << "RPATH_REMOVE could not remove RPATH from file:\n"
<< " " << file << "\n"
<< emsg;
/* clang-format on */
this->SetError(e.str());
success = false;
}
if (success) {
if (removed) {
std::string message = "Removed runtime path from \"";
message += file;
message += "\"";
this->Makefile->DisplayStatus(message, -1);
}
ft.Store(file);
}
return success;
}
bool cmFileCommand::HandleRPathCheckCommand(
std::vector<std::string> const& args)
{
// Evaluate arguments.
std::string file;
const char* rpath = nullptr;
enum Doing
{
DoingNone,
DoingFile,
DoingRPath
};
Doing doing = DoingNone;
for (unsigned int i = 1; i < args.size(); ++i) {
if (args[i] == "RPATH") {
doing = DoingRPath;
} else if (args[i] == "FILE") {
doing = DoingFile;
} else if (doing == DoingFile) {
file = args[i];
doing = DoingNone;
} else if (doing == DoingRPath) {
rpath = args[i].c_str();
doing = DoingNone;
} else {
std::ostringstream e;
e << "RPATH_CHECK given unknown argument " << args[i];
this->SetError(e.str());
return false;
}
}
if (file.empty()) {
this->SetError("RPATH_CHECK not given FILE option.");
return false;
}
if (!rpath) {
this->SetError("RPATH_CHECK not given RPATH option.");
return false;
}
// If the file exists but does not have the desired RPath then
// delete it. This is used during installation to re-install a file
// if its RPath will change.
if (cmSystemTools::FileExists(file, true) &&
!cmSystemTools::CheckRPath(file, rpath)) {
cmSystemTools::RemoveFile(file);
}
return true;
}
bool cmFileCommand::HandleReadElfCommand(std::vector<std::string> const& args)
{
if (args.size() < 4) {
this->SetError("READ_ELF must be called with at least three additional "
"arguments.");
return false;
}
std::string const& fileNameArg = args[1];
struct Arguments
{
std::string RPath;
std::string RunPath;
std::string Error;
};
static auto const parser = cmArgumentParser<Arguments>{}
.Bind("RPATH"_s, &Arguments::RPath)
.Bind("RUNPATH"_s, &Arguments::RunPath)
.Bind("CAPTURE_ERROR"_s, &Arguments::Error);
Arguments const arguments = parser.Parse(cmMakeRange(args).advance(2));
if (!cmSystemTools::FileExists(fileNameArg, true)) {
std::ostringstream e;
e << "READ_ELF given FILE \"" << fileNameArg << "\" that does not exist.";
this->SetError(e.str());
return false;
}
#if defined(CMAKE_USE_ELF_PARSER)
cmELF elf(fileNameArg.c_str());
if (!arguments.RPath.empty()) {
if (cmELF::StringEntry const* se_rpath = elf.GetRPath()) {
std::string rpath(se_rpath->Value);
std::replace(rpath.begin(), rpath.end(), ':', ';');
this->Makefile->AddDefinition(arguments.RPath, rpath.c_str());
}
}
if (!arguments.RunPath.empty()) {
if (cmELF::StringEntry const* se_runpath = elf.GetRunPath()) {
std::string runpath(se_runpath->Value);
std::replace(runpath.begin(), runpath.end(), ':', ';');
this->Makefile->AddDefinition(arguments.RunPath, runpath.c_str());
}
}
return true;
#else
std::string error = "ELF parser not available on this platform.";
if (arguments.Error.empty()) {
this->SetError(error);
return false;
}
this->Makefile->AddDefinition(arguments.Error, error.c_str());
return true;
#endif
}
bool cmFileCommand::HandleInstallCommand(std::vector<std::string> const& args)
{
cmFileInstaller installer(this);
return installer.Run(args);
}
bool cmFileCommand::HandleRelativePathCommand(
std::vector<std::string> const& args)
{
if (args.size() != 4) {
this->SetError("RELATIVE_PATH called with incorrect number of arguments");
return false;
}
const std::string& outVar = args[1];
const std::string& directoryName = args[2];
const std::string& fileName = args[3];
if (!cmSystemTools::FileIsFullPath(directoryName)) {
std::string errstring =
"RELATIVE_PATH must be passed a full path to the directory: " +
directoryName;
this->SetError(errstring);
return false;
}
if (!cmSystemTools::FileIsFullPath(fileName)) {
std::string errstring =
"RELATIVE_PATH must be passed a full path to the file: " + fileName;
this->SetError(errstring);
return false;
}
std::string res = cmSystemTools::RelativePath(directoryName, fileName);
this->Makefile->AddDefinition(outVar, res.c_str());
return true;
}
bool cmFileCommand::HandleRename(std::vector<std::string> const& args)
{
if (args.size() != 3) {
this->SetError("RENAME given incorrect number of arguments.");
return false;
}
// Compute full path for old and new names.
std::string oldname = args[1];
if (!cmsys::SystemTools::FileIsFullPath(oldname)) {
oldname = this->Makefile->GetCurrentSourceDirectory();
oldname += "/" + args[1];
}
std::string newname = args[2];
if (!cmsys::SystemTools::FileIsFullPath(newname)) {
newname = this->Makefile->GetCurrentSourceDirectory();
newname += "/" + args[2];
}
if (!cmSystemTools::RenameFile(oldname, newname)) {
std::string err = cmSystemTools::GetLastSystemError();
std::ostringstream e;
/* clang-format off */
e << "RENAME failed to rename\n"
<< " " << oldname << "\n"
<< "to\n"
<< " " << newname << "\n"
<< "because: " << err << "\n";
/* clang-format on */
this->SetError(e.str());
return false;
}
return true;
}
bool cmFileCommand::HandleRemove(std::vector<std::string> const& args,
bool recurse)
{
std::string message;
for (std::string const& arg :
cmMakeRange(args).advance(1)) // Get rid of subcommand
{
std::string fileName = arg;
if (fileName.empty()) {
std::string const r = recurse ? "REMOVE_RECURSE" : "REMOVE";
this->Makefile->IssueMessage(MessageType::AUTHOR_WARNING,
"Ignoring empty file name in " + r + ".");
continue;
}
if (!cmsys::SystemTools::FileIsFullPath(fileName)) {
fileName = this->Makefile->GetCurrentSourceDirectory();
fileName += "/" + arg;
}
if (cmSystemTools::FileIsDirectory(fileName) &&
!cmSystemTools::FileIsSymlink(fileName) && recurse) {
cmSystemTools::RemoveADirectory(fileName);
} else {
cmSystemTools::RemoveFile(fileName);
}
}
return true;
}
namespace {
std::string ToNativePath(const std::string& path)
{
const auto& outPath = cmSystemTools::ConvertToOutputPath(path);
if (outPath.size() > 1 && outPath.front() == '\"' &&
outPath.back() == '\"') {
return outPath.substr(1, outPath.size() - 2);
}
return outPath;
}
std::string ToCMakePath(const std::string& path)
{
auto temp = path;
cmSystemTools::ConvertToUnixSlashes(temp);
return temp;
}
}
bool cmFileCommand::HandleCMakePathCommand(
std::vector<std::string> const& args, bool nativePath)
{
if (args.size() != 3) {
this->SetError("FILE([TO_CMAKE_PATH|TO_NATIVE_PATH] path result) must be "
"called with exactly three arguments.");
return false;
}
#if defined(_WIN32) && !defined(__CYGWIN__)
char pathSep = ';';
#else
char pathSep = ':';
#endif
std::vector<std::string> path = cmSystemTools::SplitString(args[1], pathSep);
std::string value = cmJoin(
cmMakeRange(path).transform(nativePath ? ToNativePath : ToCMakePath), ";");
this->Makefile->AddDefinition(args[2], value.c_str());
return true;
}
#if defined(CMAKE_BUILD_WITH_CMAKE)
// Stuff for curl download/upload
typedef std::vector<char> cmFileCommandVectorOfChar;
namespace {
size_t cmWriteToFileCallback(void* ptr, size_t size, size_t nmemb, void* data)
{
int realsize = static_cast<int>(size * nmemb);
cmsys::ofstream* fout = static_cast<cmsys::ofstream*>(data);
const char* chPtr = static_cast<char*>(ptr);
fout->write(chPtr, realsize);
return realsize;
}
size_t cmWriteToMemoryCallback(void* ptr, size_t size, size_t nmemb,
void* data)
{
int realsize = static_cast<int>(size * nmemb);
const char* chPtr = static_cast<char*>(ptr);
cmAppend(*static_cast<cmFileCommandVectorOfChar*>(data), chPtr,
chPtr + realsize);
return realsize;
}
size_t cmFileCommandCurlDebugCallback(CURL*, curl_infotype type, char* chPtr,
size_t size, void* data)
{
cmFileCommandVectorOfChar& vec =
*static_cast<cmFileCommandVectorOfChar*>(data);
switch (type) {
case CURLINFO_TEXT:
case CURLINFO_HEADER_IN:
case CURLINFO_HEADER_OUT:
cmAppend(vec, chPtr, chPtr + size);
break;
case CURLINFO_DATA_IN:
case CURLINFO_DATA_OUT:
case CURLINFO_SSL_DATA_IN:
case CURLINFO_SSL_DATA_OUT: {
char buf[128];
int n = sprintf(buf, "[%" KWIML_INT_PRIu64 " bytes data]\n",
static_cast<KWIML_INT_uint64_t>(size));
if (n > 0) {
cmAppend(vec, buf, buf + n);
}
} break;
default:
break;
}
return 0;
}
class cURLProgressHelper
{
public:
cURLProgressHelper(cmFileCommand* fc, const char* text)
{
this->CurrentPercentage = -1;
this->FileCommand = fc;
this->Text = text;
}
bool UpdatePercentage(double value, double total, std::string& status)
{
long OldPercentage = this->CurrentPercentage;
if (total > 0.0) {
this->CurrentPercentage = std::lround(value / total * 100.0);
if (this->CurrentPercentage > 100) {
// Avoid extra progress reports for unexpected data beyond total.
this->CurrentPercentage = 100;
}
}
bool updated = (OldPercentage != this->CurrentPercentage);
if (updated) {
std::ostringstream oss;
oss << "[" << this->Text << " " << this->CurrentPercentage
<< "% complete]";
status = oss.str();
}
return updated;
}
cmFileCommand* GetFileCommand() { return this->FileCommand; }
private:
long CurrentPercentage;
cmFileCommand* FileCommand;
std::string Text;
};
int cmFileDownloadProgressCallback(void* clientp, double dltotal, double dlnow,
double ultotal, double ulnow)
{
cURLProgressHelper* helper = reinterpret_cast<cURLProgressHelper*>(clientp);
static_cast<void>(ultotal);
static_cast<void>(ulnow);
std::string status;
if (helper->UpdatePercentage(dlnow, dltotal, status)) {
cmFileCommand* fc = helper->GetFileCommand();
cmMakefile* mf = fc->GetMakefile();
mf->DisplayStatus(status, -1);
}
return 0;
}
int cmFileUploadProgressCallback(void* clientp, double dltotal, double dlnow,
double ultotal, double ulnow)
{
cURLProgressHelper* helper = reinterpret_cast<cURLProgressHelper*>(clientp);
static_cast<void>(dltotal);
static_cast<void>(dlnow);
std::string status;
if (helper->UpdatePercentage(ulnow, ultotal, status)) {
cmFileCommand* fc = helper->GetFileCommand();
cmMakefile* mf = fc->GetMakefile();
mf->DisplayStatus(status, -1);
}
return 0;
}
}
namespace {
class cURLEasyGuard
{
public:
cURLEasyGuard(CURL* easy)
: Easy(easy)
{
}
~cURLEasyGuard()
{
if (this->Easy) {
::curl_easy_cleanup(this->Easy);
}
}
cURLEasyGuard(const cURLEasyGuard&) = delete;
cURLEasyGuard& operator=(const cURLEasyGuard&) = delete;
void release() { this->Easy = nullptr; }
private:
::CURL* Easy;
};
}
#endif
#define check_curl_result(result, errstr) \
do { \
if (result != CURLE_OK) { \
std::string e(errstr); \
e += ::curl_easy_strerror(result); \
this->SetError(e); \
return false; \
} \
} while (false)
bool cmFileCommand::HandleDownloadCommand(std::vector<std::string> const& args)
{
#if defined(CMAKE_BUILD_WITH_CMAKE)
std::vector<std::string>::const_iterator i = args.begin();
if (args.size() < 3) {
this->SetError("DOWNLOAD must be called with at least three arguments.");
return false;
}
++i; // Get rid of subcommand
std::string url = *i;
++i;
std::string file = *i;
++i;
long timeout = 0;
long inactivity_timeout = 0;
std::string logVar;
std::string statusVar;
bool tls_verify = this->Makefile->IsOn("CMAKE_TLS_VERIFY");
const char* cainfo = this->Makefile->GetDefinition("CMAKE_TLS_CAINFO");
std::string netrc_level = this->Makefile->GetSafeDefinition("CMAKE_NETRC");
std::string netrc_file =
this->Makefile->GetSafeDefinition("CMAKE_NETRC_FILE");
std::string expectedHash;
std::string hashMatchMSG;
std::unique_ptr<cmCryptoHash> hash;
bool showProgress = false;
std::string userpwd;
std::vector<std::string> curl_headers;
while (i != args.end()) {
if (*i == "TIMEOUT") {
++i;
if (i != args.end()) {
timeout = atol(i->c_str());
} else {
this->SetError("DOWNLOAD missing time for TIMEOUT.");
return false;
}
} else if (*i == "INACTIVITY_TIMEOUT") {
++i;
if (i != args.end()) {
inactivity_timeout = atol(i->c_str());
} else {
this->SetError("DOWNLOAD missing time for INACTIVITY_TIMEOUT.");
return false;
}
} else if (*i == "LOG") {
++i;
if (i == args.end()) {
this->SetError("DOWNLOAD missing VAR for LOG.");
return false;
}
logVar = *i;
} else if (*i == "STATUS") {
++i;
if (i == args.end()) {
this->SetError("DOWNLOAD missing VAR for STATUS.");
return false;
}
statusVar = *i;
} else if (*i == "TLS_VERIFY") {
++i;
if (i != args.end()) {
tls_verify = cmSystemTools::IsOn(*i);
} else {
this->SetError("TLS_VERIFY missing bool value.");
return false;
}
} else if (*i == "TLS_CAINFO") {
++i;
if (i != args.end()) {
cainfo = i->c_str();
} else {
this->SetError("TLS_CAFILE missing file value.");
return false;
}
} else if (*i == "NETRC_FILE") {
++i;
if (i != args.end()) {
netrc_file = *i;
} else {
this->SetError("DOWNLOAD missing file value for NETRC_FILE.");
return false;
}
} else if (*i == "NETRC") {
++i;
if (i != args.end()) {
netrc_level = *i;
} else {
this->SetError("DOWNLOAD missing level value for NETRC.");
return false;
}
} else if (*i == "EXPECTED_MD5") {
++i;
if (i == args.end()) {
this->SetError("DOWNLOAD missing sum value for EXPECTED_MD5.");
return false;
}
hash = cm::make_unique<cmCryptoHash>(cmCryptoHash::AlgoMD5);
hashMatchMSG = "MD5 sum";
expectedHash = cmSystemTools::LowerCase(*i);
} else if (*i == "SHOW_PROGRESS") {
showProgress = true;
} else if (*i == "EXPECTED_HASH") {
++i;
if (i == args.end()) {
this->SetError("DOWNLOAD missing ALGO=value for EXPECTED_HASH.");
return false;
}
std::string::size_type pos = i->find("=");
if (pos == std::string::npos) {
std::string err =
"DOWNLOAD EXPECTED_HASH expects ALGO=value but got: ";
err += *i;
this->SetError(err);
return false;
}
std::string algo = i->substr(0, pos);
expectedHash = cmSystemTools::LowerCase(i->substr(pos + 1));
hash = std::unique_ptr<cmCryptoHash>(cmCryptoHash::New(algo.c_str()));
if (!hash) {
std::string err = "DOWNLOAD EXPECTED_HASH given unknown ALGO: ";
err += algo;
this->SetError(err);
return false;
}
hashMatchMSG = algo + " hash";
} else if (*i == "USERPWD") {
++i;
if (i == args.end()) {
this->SetError("DOWNLOAD missing string for USERPWD.");
return false;
}
userpwd = *i;
} else if (*i == "HTTPHEADER") {
++i;
if (i == args.end()) {
this->SetError("DOWNLOAD missing string for HTTPHEADER.");
return false;
}
curl_headers.push_back(*i);
} else {
// Do not return error for compatibility reason.
std::string err = "Unexpected argument: ";
err += *i;
this->Makefile->IssueMessage(MessageType::AUTHOR_WARNING, err);
}
++i;
}
// If file exists already, and caller specified an expected md5 or sha,
// and the existing file already has the expected hash, then simply
// return.
//
if (cmSystemTools::FileExists(file) && hash.get()) {
std::string msg;
std::string actualHash = hash->HashFile(file);
if (actualHash == expectedHash) {
msg = "returning early; file already exists with expected ";
msg += hashMatchMSG;
msg += "\"";
if (!statusVar.empty()) {
std::ostringstream result;
result << 0 << ";\"" << msg;
this->Makefile->AddDefinition(statusVar, result.str().c_str());
}
return true;
}
}
// Make sure parent directory exists so we can write to the file
// as we receive downloaded bits from curl...
//
std::string dir = cmSystemTools::GetFilenamePath(file);
if (!cmSystemTools::FileExists(dir) && !cmSystemTools::MakeDirectory(dir)) {
std::string errstring = "DOWNLOAD error: cannot create directory '" + dir +
"' - Specify file by full path name and verify that you "
"have directory creation and file write privileges.";
this->SetError(errstring);
return false;
}
cmsys::ofstream fout(file.c_str(), std::ios::binary);
if (!fout) {
this->SetError("DOWNLOAD cannot open file for write.");
return false;
}
# if defined(_WIN32)
url = fix_file_url_windows(url);
# endif
::CURL* curl;
::curl_global_init(CURL_GLOBAL_DEFAULT);
curl = ::curl_easy_init();
if (!curl) {
this->SetError("DOWNLOAD error initializing curl.");
return false;
}
cURLEasyGuard g_curl(curl);
::CURLcode res = ::curl_easy_setopt(curl, CURLOPT_URL, url.c_str());
check_curl_result(res, "DOWNLOAD cannot set url: ");
// enable HTTP ERROR parsing
res = ::curl_easy_setopt(curl, CURLOPT_FAILONERROR, 1);
check_curl_result(res, "DOWNLOAD cannot set http failure option: ");
res = ::curl_easy_setopt(curl, CURLOPT_USERAGENT, "curl/" LIBCURL_VERSION);
check_curl_result(res, "DOWNLOAD cannot set user agent option: ");
res = ::curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, cmWriteToFileCallback);
check_curl_result(res, "DOWNLOAD cannot set write function: ");
res = ::curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION,
cmFileCommandCurlDebugCallback);
check_curl_result(res, "DOWNLOAD cannot set debug function: ");
// check to see if TLS verification is requested
if (tls_verify) {
res = ::curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 1);
check_curl_result(res, "Unable to set TLS/SSL Verify on: ");
} else {
res = ::curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0);
check_curl_result(res, "Unable to set TLS/SSL Verify off: ");
}
// check to see if a CAINFO file has been specified
// command arg comes first
std::string const& cainfo_err = cmCurlSetCAInfo(curl, cainfo);
if (!cainfo_err.empty()) {
this->SetError(cainfo_err);
return false;
}
// check to see if netrc parameters have been specified
// local command args takes precedence over CMAKE_NETRC*
netrc_level = cmSystemTools::UpperCase(netrc_level);
std::string const& netrc_option_err =
cmCurlSetNETRCOption(curl, netrc_level, netrc_file);
if (!netrc_option_err.empty()) {
this->SetError(netrc_option_err);
return false;
}
cmFileCommandVectorOfChar chunkDebug;
res = ::curl_easy_setopt(curl, CURLOPT_WRITEDATA, &fout);
check_curl_result(res, "DOWNLOAD cannot set write data: ");
res = ::curl_easy_setopt(curl, CURLOPT_DEBUGDATA, &chunkDebug);
check_curl_result(res, "DOWNLOAD cannot set debug data: ");
res = ::curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);
check_curl_result(res, "DOWNLOAD cannot set follow-redirect option: ");
if (!logVar.empty()) {
res = ::curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
check_curl_result(res, "DOWNLOAD cannot set verbose: ");
}
if (timeout > 0) {
res = ::curl_easy_setopt(curl, CURLOPT_TIMEOUT, timeout);
check_curl_result(res, "DOWNLOAD cannot set timeout: ");
}
if (inactivity_timeout > 0) {
// Give up if there is no progress for a long time.
::curl_easy_setopt(curl, CURLOPT_LOW_SPEED_LIMIT, 1);
::curl_easy_setopt(curl, CURLOPT_LOW_SPEED_TIME, inactivity_timeout);
}
// Need the progress helper's scope to last through the duration of
// the curl_easy_perform call... so this object is declared at function
// scope intentionally, rather than inside the "if(showProgress)"
// block...
//
cURLProgressHelper helper(this, "download");
if (showProgress) {
res = ::curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 0);
check_curl_result(res, "DOWNLOAD cannot set noprogress value: ");
res = ::curl_easy_setopt(curl, CURLOPT_PROGRESSFUNCTION,
cmFileDownloadProgressCallback);
check_curl_result(res, "DOWNLOAD cannot set progress function: ");
res = ::curl_easy_setopt(curl, CURLOPT_PROGRESSDATA,
reinterpret_cast<void*>(&helper));
check_curl_result(res, "DOWNLOAD cannot set progress data: ");
}
if (!userpwd.empty()) {
res = ::curl_easy_setopt(curl, CURLOPT_USERPWD, userpwd.c_str());
check_curl_result(res, "DOWNLOAD cannot set user password: ");
}
struct curl_slist* headers = nullptr;
for (std::string const& h : curl_headers) {
headers = ::curl_slist_append(headers, h.c_str());
}
::curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
res = ::curl_easy_perform(curl);
::curl_slist_free_all(headers);
/* always cleanup */
g_curl.release();
::curl_easy_cleanup(curl);
if (!statusVar.empty()) {
std::ostringstream result;
result << static_cast<int>(res) << ";\"" << ::curl_easy_strerror(res)
<< "\"";
this->Makefile->AddDefinition(statusVar, result.str().c_str());
}
::curl_global_cleanup();
// Explicitly flush/close so we can measure the md5 accurately.
//
fout.flush();
fout.close();
// Verify MD5 sum if requested:
//
if (hash) {
std::string actualHash = hash->HashFile(file);
if (actualHash.empty()) {
this->SetError("DOWNLOAD cannot compute hash on downloaded file");
return false;
}
if (expectedHash != actualHash) {
std::ostringstream oss;
oss << "DOWNLOAD HASH mismatch" << std::endl
<< " for file: [" << file << "]" << std::endl
<< " expected hash: [" << expectedHash << "]" << std::endl
<< " actual hash: [" << actualHash << "]" << std::endl
<< " status: [" << static_cast<int>(res) << ";\""
<< ::curl_easy_strerror(res) << "\"]" << std::endl;
if (!statusVar.empty() && res == 0) {
std::string status = "1;HASH mismatch: "
"expected: " +
expectedHash + " actual: " + actualHash;
this->Makefile->AddDefinition(statusVar, status.c_str());
}
this->SetError(oss.str());
return false;
}
}
if (!logVar.empty()) {
chunkDebug.push_back(0);
this->Makefile->AddDefinition(logVar, chunkDebug.data());
}
return true;
#else
this->SetError("DOWNLOAD not supported by bootstrap cmake.");
return false;
#endif
}
bool cmFileCommand::HandleUploadCommand(std::vector<std::string> const& args)
{
#if defined(CMAKE_BUILD_WITH_CMAKE)
if (args.size() < 3) {
this->SetError("UPLOAD must be called with at least three arguments.");
return false;
}
std::vector<std::string>::const_iterator i = args.begin();
++i;
std::string filename = *i;
++i;
std::string url = *i;
++i;
long timeout = 0;
long inactivity_timeout = 0;
std::string logVar;
std::string statusVar;
bool showProgress = false;
std::string userpwd;
std::string netrc_level = this->Makefile->GetSafeDefinition("CMAKE_NETRC");
std::string netrc_file =
this->Makefile->GetSafeDefinition("CMAKE_NETRC_FILE");
std::vector<std::string> curl_headers;
while (i != args.end()) {
if (*i == "TIMEOUT") {
++i;
if (i != args.end()) {
timeout = atol(i->c_str());
} else {
this->SetError("UPLOAD missing time for TIMEOUT.");
return false;
}
} else if (*i == "INACTIVITY_TIMEOUT") {
++i;
if (i != args.end()) {
inactivity_timeout = atol(i->c_str());
} else {
this->SetError("UPLOAD missing time for INACTIVITY_TIMEOUT.");
return false;
}
} else if (*i == "LOG") {
++i;
if (i == args.end()) {
this->SetError("UPLOAD missing VAR for LOG.");
return false;
}
logVar = *i;
} else if (*i == "STATUS") {
++i;
if (i == args.end()) {
this->SetError("UPLOAD missing VAR for STATUS.");
return false;
}
statusVar = *i;
} else if (*i == "SHOW_PROGRESS") {
showProgress = true;
} else if (*i == "NETRC_FILE") {
++i;
if (i != args.end()) {
netrc_file = *i;
} else {
this->SetError("UPLOAD missing file value for NETRC_FILE.");
return false;
}
} else if (*i == "NETRC") {
++i;
if (i != args.end()) {
netrc_level = *i;
} else {
this->SetError("UPLOAD missing level value for NETRC.");
return false;
}
} else if (*i == "USERPWD") {
++i;
if (i == args.end()) {
this->SetError("UPLOAD missing string for USERPWD.");
return false;
}
userpwd = *i;
} else if (*i == "HTTPHEADER") {
++i;
if (i == args.end()) {
this->SetError("UPLOAD missing string for HTTPHEADER.");
return false;
}
curl_headers.push_back(*i);
} else {
// Do not return error for compatibility reason.
std::string err = "Unexpected argument: ";
err += *i;
this->Makefile->IssueMessage(MessageType::AUTHOR_WARNING, err);
}
++i;
}
// Open file for reading:
//
FILE* fin = cmsys::SystemTools::Fopen(filename, "rb");
if (!fin) {
std::string errStr = "UPLOAD cannot open file '";
errStr += filename + "' for reading.";
this->SetError(errStr);
return false;
}
unsigned long file_size = cmsys::SystemTools::FileLength(filename);
# if defined(_WIN32)
url = fix_file_url_windows(url);
# endif
::CURL* curl;
::curl_global_init(CURL_GLOBAL_DEFAULT);
curl = ::curl_easy_init();
if (!curl) {
this->SetError("UPLOAD error initializing curl.");
fclose(fin);
return false;
}
cURLEasyGuard g_curl(curl);
// enable HTTP ERROR parsing
::CURLcode res = ::curl_easy_setopt(curl, CURLOPT_FAILONERROR, 1);
check_curl_result(res, "UPLOAD cannot set fail on error flag: ");
// enable uploading
res = ::curl_easy_setopt(curl, CURLOPT_UPLOAD, 1);
check_curl_result(res, "UPLOAD cannot set upload flag: ");
res = ::curl_easy_setopt(curl, CURLOPT_URL, url.c_str());
check_curl_result(res, "UPLOAD cannot set url: ");
res =
::curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, cmWriteToMemoryCallback);
check_curl_result(res, "UPLOAD cannot set write function: ");
res = ::curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION,
cmFileCommandCurlDebugCallback);
check_curl_result(res, "UPLOAD cannot set debug function: ");
cmFileCommandVectorOfChar chunkResponse;
cmFileCommandVectorOfChar chunkDebug;
res = ::curl_easy_setopt(curl, CURLOPT_WRITEDATA, &chunkResponse);
check_curl_result(res, "UPLOAD cannot set write data: ");
res = ::curl_easy_setopt(curl, CURLOPT_DEBUGDATA, &chunkDebug);
check_curl_result(res, "UPLOAD cannot set debug data: ");
res = ::curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);
check_curl_result(res, "UPLOAD cannot set follow-redirect option: ");
if (!logVar.empty()) {
res = ::curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
check_curl_result(res, "UPLOAD cannot set verbose: ");
}
if (timeout > 0) {
res = ::curl_easy_setopt(curl, CURLOPT_TIMEOUT, timeout);
check_curl_result(res, "UPLOAD cannot set timeout: ");
}
if (inactivity_timeout > 0) {
// Give up if there is no progress for a long time.
::curl_easy_setopt(curl, CURLOPT_LOW_SPEED_LIMIT, 1);
::curl_easy_setopt(curl, CURLOPT_LOW_SPEED_TIME, inactivity_timeout);
}
// Need the progress helper's scope to last through the duration of
// the curl_easy_perform call... so this object is declared at function
// scope intentionally, rather than inside the "if(showProgress)"
// block...
//
cURLProgressHelper helper(this, "upload");
if (showProgress) {
res = ::curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 0);
check_curl_result(res, "UPLOAD cannot set noprogress value: ");
res = ::curl_easy_setopt(curl, CURLOPT_PROGRESSFUNCTION,
cmFileUploadProgressCallback);
check_curl_result(res, "UPLOAD cannot set progress function: ");
res = ::curl_easy_setopt(curl, CURLOPT_PROGRESSDATA,
reinterpret_cast<void*>(&helper));
check_curl_result(res, "UPLOAD cannot set progress data: ");
}
// now specify which file to upload
res = ::curl_easy_setopt(curl, CURLOPT_INFILE, fin);
check_curl_result(res, "UPLOAD cannot set input file: ");
// and give the size of the upload (optional)
res =
::curl_easy_setopt(curl, CURLOPT_INFILESIZE, static_cast<long>(file_size));
check_curl_result(res, "UPLOAD cannot set input file size: ");
if (!userpwd.empty()) {
res = ::curl_easy_setopt(curl, CURLOPT_USERPWD, userpwd.c_str());
check_curl_result(res, "UPLOAD cannot set user password: ");
}
// check to see if netrc parameters have been specified
// local command args takes precedence over CMAKE_NETRC*
netrc_level = cmSystemTools::UpperCase(netrc_level);
std::string const& netrc_option_err =
cmCurlSetNETRCOption(curl, netrc_level, netrc_file);
if (!netrc_option_err.empty()) {
this->SetError(netrc_option_err);
return false;
}
struct curl_slist* headers = nullptr;
for (std::string const& h : curl_headers) {
headers = ::curl_slist_append(headers, h.c_str());
}
::curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
res = ::curl_easy_perform(curl);
::curl_slist_free_all(headers);
/* always cleanup */
g_curl.release();
::curl_easy_cleanup(curl);
if (!statusVar.empty()) {
std::ostringstream result;
result << static_cast<int>(res) << ";\"" << ::curl_easy_strerror(res)
<< "\"";
this->Makefile->AddDefinition(statusVar, result.str().c_str());
}
::curl_global_cleanup();
fclose(fin);
fin = nullptr;
if (!logVar.empty()) {
std::string log;
if (!chunkResponse.empty()) {
chunkResponse.push_back(0);
log += "Response:\n";
log += chunkResponse.data();
log += "\n";
}
if (!chunkDebug.empty()) {
chunkDebug.push_back(0);
log += "Debug:\n";
log += chunkDebug.data();
log += "\n";
}
this->Makefile->AddDefinition(logVar, log.c_str());
}
return true;
#else
this->SetError("UPLOAD not supported by bootstrap cmake.");
return false;
#endif
}
void cmFileCommand::AddEvaluationFile(const std::string& inputName,
const std::string& outputExpr,
const std::string& condition,
bool inputIsContent)
{
cmListFileBacktrace lfbt = this->Makefile->GetBacktrace();
cmGeneratorExpression outputGe(lfbt);
std::unique_ptr<cmCompiledGeneratorExpression> outputCge =
outputGe.Parse(outputExpr);
cmGeneratorExpression conditionGe(lfbt);
std::unique_ptr<cmCompiledGeneratorExpression> conditionCge =
conditionGe.Parse(condition);
this->Makefile->AddEvaluationFile(inputName, std::move(outputCge),
std::move(conditionCge), inputIsContent);
}
bool cmFileCommand::HandleGenerateCommand(std::vector<std::string> const& args)
{
if (args.size() < 5) {
this->SetError("Incorrect arguments to GENERATE subcommand.");
return false;
}
if (args[1] != "OUTPUT") {
this->SetError("Incorrect arguments to GENERATE subcommand.");
return false;
}
std::string condition;
if (args.size() > 5) {
if (args[5] != "CONDITION") {
this->SetError("Incorrect arguments to GENERATE subcommand.");
return false;
}
if (args.size() != 7) {
this->SetError("Incorrect arguments to GENERATE subcommand.");
return false;
}
condition = args[6];
if (condition.empty()) {
this->SetError("CONDITION of sub-command GENERATE must not be empty if "
"specified.");
return false;
}
}
std::string output = args[2];
const bool inputIsContent = args[3] != "INPUT";
if (inputIsContent && args[3] != "CONTENT") {
this->SetError("Incorrect arguments to GENERATE subcommand.");
return false;
}
std::string input = args[4];
this->AddEvaluationFile(input, output, condition, inputIsContent);
return true;
}
bool cmFileCommand::HandleLockCommand(std::vector<std::string> const& args)
{
#if defined(CMAKE_BUILD_WITH_CMAKE)
// Default values
bool directory = false;
bool release = false;
enum Guard
{
GUARD_FUNCTION,
GUARD_FILE,
GUARD_PROCESS
};
Guard guard = GUARD_PROCESS;
std::string resultVariable;
unsigned long timeout = static_cast<unsigned long>(-1);
// Parse arguments
if (args.size() < 2) {
this->Makefile->IssueMessage(
MessageType::FATAL_ERROR,
"sub-command LOCK requires at least two arguments.");
return false;
}
std::string path = args[1];
for (unsigned i = 2; i < args.size(); ++i) {
if (args[i] == "DIRECTORY") {
directory = true;
} else if (args[i] == "RELEASE") {
release = true;
} else if (args[i] == "GUARD") {
++i;
const char* merr = "expected FUNCTION, FILE or PROCESS after GUARD";
if (i >= args.size()) {
this->Makefile->IssueMessage(MessageType::FATAL_ERROR, merr);
return false;
}
if (args[i] == "FUNCTION") {
guard = GUARD_FUNCTION;
} else if (args[i] == "FILE") {
guard = GUARD_FILE;
} else if (args[i] == "PROCESS") {
guard = GUARD_PROCESS;
} else {
std::ostringstream e;
e << merr << ", but got:\n \"" << args[i] << "\".";
this->Makefile->IssueMessage(MessageType::FATAL_ERROR, e.str());
return false;
}
} else if (args[i] == "RESULT_VARIABLE") {
++i;
if (i >= args.size()) {
this->Makefile->IssueMessage(
MessageType::FATAL_ERROR,
"expected variable name after RESULT_VARIABLE");
return false;
}
resultVariable = args[i];
} else if (args[i] == "TIMEOUT") {
++i;
if (i >= args.size()) {
this->Makefile->IssueMessage(MessageType::FATAL_ERROR,
"expected timeout value after TIMEOUT");
return false;
}
long scanned;
if (!cmSystemTools::StringToLong(args[i].c_str(), &scanned) ||
scanned < 0) {
std::ostringstream e;
e << "TIMEOUT value \"" << args[i] << "\" is not an unsigned integer.";
this->Makefile->IssueMessage(MessageType::FATAL_ERROR, e.str());
return false;
}
timeout = static_cast<unsigned long>(scanned);
} else {
std::ostringstream e;
e << "expected DIRECTORY, RELEASE, GUARD, RESULT_VARIABLE or TIMEOUT\n";
e << "but got: \"" << args[i] << "\".";
this->Makefile->IssueMessage(MessageType::FATAL_ERROR, e.str());
return false;
}
}
if (directory) {
path += "/cmake.lock";
}
if (!cmsys::SystemTools::FileIsFullPath(path)) {
path = this->Makefile->GetCurrentSourceDirectory() + "/" + path;
}
// Unify path (remove '//', '/../', ...)
path = cmSystemTools::CollapseFullPath(path);
// Create file and directories if needed
std::string parentDir = cmSystemTools::GetParentDirectory(path);
if (!cmSystemTools::MakeDirectory(parentDir)) {
std::ostringstream e;
e << "directory\n \"" << parentDir << "\"\ncreation failed ";
e << "(check permissions).";
this->Makefile->IssueMessage(MessageType::FATAL_ERROR, e.str());
cmSystemTools::SetFatalErrorOccured();
return false;
}
FILE* file = cmsys::SystemTools::Fopen(path, "w");
if (!file) {
std::ostringstream e;
e << "file\n \"" << path << "\"\ncreation failed (check permissions).";
this->Makefile->IssueMessage(MessageType::FATAL_ERROR, e.str());
cmSystemTools::SetFatalErrorOccured();
return false;
}
fclose(file);
// Actual lock/unlock
cmFileLockPool& lockPool =
this->Makefile->GetGlobalGenerator()->GetFileLockPool();
cmFileLockResult fileLockResult(cmFileLockResult::MakeOk());
if (release) {
fileLockResult = lockPool.Release(path);
} else {
switch (guard) {
case GUARD_FUNCTION:
fileLockResult = lockPool.LockFunctionScope(path, timeout);
break;
case GUARD_FILE:
fileLockResult = lockPool.LockFileScope(path, timeout);
break;
case GUARD_PROCESS:
fileLockResult = lockPool.LockProcessScope(path, timeout);
break;
default:
cmSystemTools::SetFatalErrorOccured();
return false;
}
}
const std::string result = fileLockResult.GetOutputMessage();
if (resultVariable.empty() && !fileLockResult.IsOk()) {
std::ostringstream e;
e << "error locking file\n \"" << path << "\"\n" << result << ".";
this->Makefile->IssueMessage(MessageType::FATAL_ERROR, e.str());
cmSystemTools::SetFatalErrorOccured();
return false;
}
if (!resultVariable.empty()) {
this->Makefile->AddDefinition(resultVariable, result.c_str());
}
return true;
#else
static_cast<void>(args);
this->SetError("sub-command LOCK not implemented in bootstrap cmake");
return false;
#endif
}
bool cmFileCommand::HandleTimestampCommand(
std::vector<std::string> const& args)
{
if (args.size() < 3) {
this->SetError("sub-command TIMESTAMP requires at least two arguments.");
return false;
}
if (args.size() > 5) {
this->SetError("sub-command TIMESTAMP takes at most four arguments.");
return false;
}
unsigned int argsIndex = 1;
const std::string& filename = args[argsIndex++];
const std::string& outputVariable = args[argsIndex++];
std::string formatString;
if (args.size() > argsIndex && args[argsIndex] != "UTC") {
formatString = args[argsIndex++];
}
bool utcFlag = false;
if (args.size() > argsIndex) {
if (args[argsIndex] == "UTC") {
utcFlag = true;
} else {
std::string e = " TIMESTAMP sub-command does not recognize option " +
args[argsIndex] + ".";
this->SetError(e);
return false;
}
}
cmTimestamp timestamp;
std::string result =
timestamp.FileModificationTime(filename.c_str(), formatString, utcFlag);
this->Makefile->AddDefinition(outputVariable, result.c_str());
return true;
}
bool cmFileCommand::HandleSizeCommand(std::vector<std::string> const& args)
{
if (args.size() != 3) {
std::ostringstream e;
e << args[0] << " requires a file name and output variable";
this->SetError(e.str());
return false;
}
unsigned int argsIndex = 1;
const std::string& filename = args[argsIndex++];
const std::string& outputVariable = args[argsIndex++];
if (!cmSystemTools::FileExists(filename, true)) {
std::ostringstream e;
e << "SIZE requested of path that is not readable:\n " << filename;
this->SetError(e.str());
return false;
}
this->Makefile->AddDefinition(
outputVariable,
std::to_string(cmSystemTools::FileLength(filename)).c_str());
return true;
}
bool cmFileCommand::HandleReadSymlinkCommand(
std::vector<std::string> const& args)
{
if (args.size() != 3) {
std::ostringstream e;
e << args[0] << " requires a file name and output variable";
this->SetError(e.str());
return false;
}
const std::string& filename = args[1];
const std::string& outputVariable = args[2];
std::string result;
if (!cmSystemTools::ReadSymlink(filename, result)) {
std::ostringstream e;
e << "READ_SYMLINK requested of path that is not a symlink:\n "
<< filename;
this->SetError(e.str());
return false;
}
this->Makefile->AddDefinition(outputVariable, result.c_str());
return true;
}
bool cmFileCommand::HandleCreateLinkCommand(
std::vector<std::string> const& args)
{
if (args.size() < 3) {
this->SetError("CREATE_LINK must be called with at least two additional "
"arguments");
return false;
}
std::string const& fileName = args[1];
std::string const& newFileName = args[2];
struct Arguments
{
std::string Result;
bool CopyOnError = false;
bool Symbolic = false;
};
static auto const parser =
cmArgumentParser<Arguments>{}
.Bind("RESULT"_s, &Arguments::Result)
.Bind("COPY_ON_ERROR"_s, &Arguments::CopyOnError)
.Bind("SYMBOLIC"_s, &Arguments::Symbolic);
std::vector<std::string> unconsumedArgs;
Arguments const arguments =
parser.Parse(cmMakeRange(args).advance(3), &unconsumedArgs);
if (!unconsumedArgs.empty()) {
this->SetError("unknown argument: \"" + unconsumedArgs.front() + '\"');
return false;
}
// The system error message generated in the operation.
std::string result;
// Check if the paths are distinct.
if (fileName == newFileName) {
result = "CREATE_LINK cannot use same file and newfile";
if (!arguments.Result.empty()) {
this->Makefile->AddDefinition(arguments.Result, result.c_str());
return true;
}
this->SetError(result);
return false;
}
// Hard link requires original file to exist.
if (!arguments.Symbolic && !cmSystemTools::FileExists(fileName)) {
result = "Cannot hard link \'" + fileName + "\' as it does not exist.";
if (!arguments.Result.empty()) {
this->Makefile->AddDefinition(arguments.Result, result.c_str());
return true;
}
this->SetError(result);
return false;
}
// Check if the new file already exists and remove it.
if ((cmSystemTools::FileExists(newFileName) ||
cmSystemTools::FileIsSymlink(newFileName)) &&
!cmSystemTools::RemoveFile(newFileName)) {
std::ostringstream e;
e << "Failed to create link '" << newFileName
<< "' because existing path cannot be removed: "
<< cmSystemTools::GetLastSystemError() << "\n";
if (!arguments.Result.empty()) {
this->Makefile->AddDefinition(arguments.Result, e.str().c_str());
return true;
}
this->SetError(e.str());
return false;
}
// Whether the operation completed successfully.
bool completed = false;
// Check if the command requires a symbolic link.
if (arguments.Symbolic) {
completed = cmSystemTools::CreateSymlink(fileName, newFileName, &result);
} else {
completed = cmSystemTools::CreateLink(fileName, newFileName, &result);
}
// Check if copy-on-error is enabled in the arguments.
if (!completed && arguments.CopyOnError) {
completed = cmsys::SystemTools::CopyFileAlways(fileName, newFileName);
if (!completed) {
result = "Copy failed: " + cmSystemTools::GetLastSystemError();
}
}
// Check if the operation was successful.
if (completed) {
result = "0";
} else if (arguments.Result.empty()) {
// The operation failed and the result is not reported in a variable.
this->SetError(result);
return false;
}
if (!arguments.Result.empty()) {
this->Makefile->AddDefinition(arguments.Result, result.c_str());
}
return true;
}
