CMake/Source/cmakexbuild.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copyright/license notice headers that spell out copyright holder names and years are hard to maintain and often out-of-date or plain wrong.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 "cmConfigure.h" // IWYU pragma: keep
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#include "cmsys/Process.h"
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#include <iostream>
#include <string>
#include <vector>
#include "cmDuration.h"
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#include "cmSystemTools.h"
// This is a wrapper program for xcodebuild
// it calls xcodebuild, and does two things
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// it removes much of the output, all the setenv
// stuff. Also, it checks for the text file busy
// error, and re-runs xcodebuild until that error does
// not show up.
int RunXCode(std::vector<const char*>& argv, bool& hitbug)
{
hitbug = false;
cmsysProcess* cp = cmsysProcess_New();
cmsysProcess_SetCommand(cp, &*argv.begin());
cmsysProcess_SetTimeout(cp, 0);
cmsysProcess_Execute(cp);
std::vector<char> out;
std::vector<char> err;
std::string line;
int pipe =
cmSystemTools::WaitForLine(cp, line, std::chrono::seconds(100), out, err);
while (pipe != cmsysProcess_Pipe_None) {
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if (line.find("/bin/sh: bad interpreter: Text file busy") !=
std::string::npos) {
hitbug = true;
std::cerr << "Hit xcodebuild bug : " << line << "\n";
}
// if the bug is hit, no more output should be generated
// because it may contain bogus errors
// also remove all output with setenv in it to tone down
// the verbosity of xcodebuild
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if (!hitbug && (line.find("setenv") == std::string::npos)) {
if (pipe == cmsysProcess_Pipe_STDERR) {
std::cerr << line << "\n";
} else if (pipe == cmsysProcess_Pipe_STDOUT) {
std::cout << line << "\n";
}
}
pipe = cmSystemTools::WaitForLine(cp, line, std::chrono::seconds(100), out,
err);
}
cmsysProcess_WaitForExit(cp, nullptr);
if (cmsysProcess_GetState(cp) == cmsysProcess_State_Exited) {
return cmsysProcess_GetExitValue(cp);
}
if (cmsysProcess_GetState(cp) == cmsysProcess_State_Error) {
return -1;
}
return -1;
}
int main(int ac, char* av[])
{
std::vector<const char*> argv;
argv.push_back("xcodebuild");
for (int i = 1; i < ac; i++) {
argv.push_back(av[i]);
}
argv.push_back(nullptr);
bool hitbug = true;
int ret = 0;
while (hitbug) {
ret = RunXCode(argv, hitbug);
}
if (ret < 0) {
return 255;
}
return ret;
}