forked from lix-project/lix
Merge pull request #2878 from NixOS/run-in-pts
Run builds in a pseudo-terminal
This commit is contained in:
commit
4b214e6e45
|
@ -38,6 +38,7 @@
|
|||
#include <unistd.h>
|
||||
#include <errno.h>
|
||||
#include <cstring>
|
||||
#include <termios.h>
|
||||
|
||||
#include <pwd.h>
|
||||
#include <grp.h>
|
||||
|
@ -1558,8 +1559,8 @@ void DerivationGoal::buildDone()
|
|||
if (hook) {
|
||||
hook->builderOut.readSide = -1;
|
||||
hook->fromHook.readSide = -1;
|
||||
}
|
||||
else builderOut.readSide = -1;
|
||||
} else
|
||||
builderOut.readSide = -1;
|
||||
|
||||
/* Close the log file. */
|
||||
closeLogFile();
|
||||
|
@ -2181,7 +2182,48 @@ void DerivationGoal::startBuilder()
|
|||
Path logFile = openLogFile();
|
||||
|
||||
/* Create a pipe to get the output of the builder. */
|
||||
builderOut.create();
|
||||
//builderOut.create();
|
||||
|
||||
builderOut.readSide = posix_openpt(O_RDWR | O_NOCTTY);
|
||||
if (!builderOut.readSide)
|
||||
throw SysError("opening pseudoterminal master");
|
||||
|
||||
std::string slaveName(ptsname(builderOut.readSide.get()));
|
||||
|
||||
if (buildUser) {
|
||||
if (chmod(slaveName.c_str(), 0600))
|
||||
throw SysError("changing mode of pseudoterminal slave");
|
||||
|
||||
if (chown(slaveName.c_str(), buildUser->getUID(), 0))
|
||||
throw SysError("changing owner of pseudoterminal slave");
|
||||
} else {
|
||||
if (grantpt(builderOut.readSide.get()))
|
||||
throw SysError("granting access to pseudoterminal slave");
|
||||
}
|
||||
|
||||
#if 0
|
||||
// Mount the pt in the sandbox so that the "tty" command works.
|
||||
// FIXME: this doesn't work with the new devpts in the sandbox.
|
||||
if (useChroot)
|
||||
dirsInChroot[slaveName] = {slaveName, false};
|
||||
#endif
|
||||
|
||||
if (unlockpt(builderOut.readSide.get()))
|
||||
throw SysError("unlocking pseudoterminal");
|
||||
|
||||
builderOut.writeSide = open(slaveName.c_str(), O_RDWR | O_NOCTTY);
|
||||
if (!builderOut.writeSide)
|
||||
throw SysError("opening pseudoterminal slave");
|
||||
|
||||
// Put the pt into raw mode to prevent \n -> \r\n translation.
|
||||
struct termios term;
|
||||
if (tcgetattr(builderOut.writeSide.get(), &term))
|
||||
throw SysError("getting pseudoterminal attributes");
|
||||
|
||||
cfmakeraw(&term);
|
||||
|
||||
if (tcsetattr(builderOut.writeSide.get(), TCSANOW, &term))
|
||||
throw SysError("putting pseudoterminal into raw mode");
|
||||
|
||||
result.startTime = time(0);
|
||||
|
||||
|
@ -2406,6 +2448,9 @@ void DerivationGoal::initEnv()
|
|||
may change that in the future. So tell the builder which file
|
||||
descriptor to use for that. */
|
||||
env["NIX_LOG_FD"] = "2";
|
||||
|
||||
/* Trigger colored output in various tools. */
|
||||
env["TERM"] = "xterm-256color";
|
||||
}
|
||||
|
||||
|
||||
|
@ -4361,14 +4406,15 @@ void Worker::waitForInput()
|
|||
for (auto & k : fds2) {
|
||||
if (FD_ISSET(k, &fds)) {
|
||||
ssize_t rd = read(k, buffer.data(), buffer.size());
|
||||
if (rd == -1) {
|
||||
if (errno != EINTR)
|
||||
throw SysError(format("reading from %1%")
|
||||
% goal->getName());
|
||||
} else if (rd == 0) {
|
||||
// FIXME: is there a cleaner way to handle pt close
|
||||
// than EIO? Is this even standard?
|
||||
if (rd == 0 || (rd == -1 && errno == EIO)) {
|
||||
debug(format("%1%: got EOF") % goal->getName());
|
||||
goal->handleEOF(k);
|
||||
j->fds.erase(k);
|
||||
} else if (rd == -1) {
|
||||
if (errno != EINTR)
|
||||
throw SysError("%s: read failed", goal->getName());
|
||||
} else {
|
||||
printMsg(lvlVomit, format("%1%: read %2% bytes")
|
||||
% goal->getName() % rd);
|
||||
|
|
Loading…
Reference in a new issue