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Add support for the build-timeout' and
--timeout' options.
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@ -134,6 +134,23 @@ env-keep-derivations = false
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</listitem>
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</listitem>
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<varlistentry xml:id="conf-build-timeout"><term><literal>build-timeout</literal></term>
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<listitem>
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<para>This option defines the maximum number of seconds that a
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builder can run. This is useful (for instance in a automated
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build system) to catch builds that are stuck in an infinite loop
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but keep writing to their standard output or standard error. It
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can be overriden using the <option
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linkend="opt-timeout">--timeout</option> command line
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switch.</para>
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<para>The value <literal>0</literal> means that there is no
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timeout. This is also the default.</para>
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</listitem>
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</varlistentry>
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</varlistentry>
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@ -21,6 +21,10 @@
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<arg><option>--max-silent-time</option></arg>
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<arg><option>--max-silent-time</option></arg>
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<replaceable>number</replaceable>
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<replaceable>number</replaceable>
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</arg>
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</arg>
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<arg>
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<arg><option>--timeout</option></arg>
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<replaceable>number</replaceable>
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</arg>
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<arg><option>--keep-going</option></arg>
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<arg><option>--keep-going</option></arg>
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<arg><option>-k</option></arg>
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<arg><option>-k</option></arg>
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<arg><option>--keep-failed</option></arg>
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<arg><option>--keep-failed</option></arg>
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@ -132,6 +132,16 @@
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</varlistentry>
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</varlistentry>
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<varlistentry xml:id="opt-timeout"><term><option>--timeout</option></term>
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<listitem><para>Sets the maximum number of seconds that a builder
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can run. The default is specified by the <link
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linkend='conf-build-timeout'><literal>build-timeout</literal></link>
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configuration setting. <literal>0</literal> means no
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timeout.</para></listitem>
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</varlistentry>
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<varlistentry><term><option>--keep-going</option></term>
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<varlistentry><term><option>--keep-going</option></term>
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<term><option>-k</option></term>
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<term><option>-k</option></term>
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@ -22,6 +22,16 @@
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option.</para>
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option.</para>
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</listitem>
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</listitem>
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<listitem>
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<para>The option <option>--timeout</option> (corresponding to the
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configuration setting <literal>build-timeout</literal>) allows you
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to set an absolute timeout on builds — if a build runs for more than
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the given number of seconds, it is terminated. This is useful for
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recovering automatically from builds that are stuck in an infinite
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loop but keep producing output, and for which
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<literal>--max-silent-time</literal> is ineffective.</para>
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</listitem>
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</itemizedlist>
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</itemizedlist>
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</section>
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</section>
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@ -142,6 +142,7 @@ static void initAndRun(int argc, char * * argv)
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maxBuildJobs = queryIntSetting("build-max-jobs", 1);
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maxBuildJobs = queryIntSetting("build-max-jobs", 1);
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buildCores = queryIntSetting("build-cores", 1);
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buildCores = queryIntSetting("build-cores", 1);
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maxSilentTime = queryIntSetting("build-max-silent-time", 0);
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maxSilentTime = queryIntSetting("build-max-silent-time", 0);
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buildTimeout = queryIntSetting("build-timeout", 0);
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/* Catch SIGINT. */
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/* Catch SIGINT. */
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struct sigaction act;
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struct sigaction act;
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@ -237,6 +238,8 @@ static void initAndRun(int argc, char * * argv)
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readOnlyMode = true;
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readOnlyMode = true;
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else if (arg == "--max-silent-time")
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else if (arg == "--max-silent-time")
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maxSilentTime = getIntArg<unsigned int>(arg, i, args.end());
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maxSilentTime = getIntArg<unsigned int>(arg, i, args.end());
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else if (arg == "--timeout")
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buildTimeout = getIntArg<unsigned int>(arg, i, args.end());
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else if (arg == "--no-build-hook")
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else if (arg == "--no-build-hook")
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useBuildHook = false;
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useBuildHook = false;
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else if (arg == "--show-trace")
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else if (arg == "--show-trace")
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@ -210,6 +210,9 @@ private:
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/* Last time the goals in `waitingForAWhile' where woken up. */
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/* Last time the goals in `waitingForAWhile' where woken up. */
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time_t lastWokenUp;
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time_t lastWokenUp;
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/* Last time `waitForInput' was last called. */
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time_t lastWait;
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public:
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public:
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bool cacheFailure;
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bool cacheFailure;
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@ -682,6 +685,7 @@ HookInstance::HookInstance()
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if (dup2(builderOut.writeSide, 4) == -1)
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if (dup2(builderOut.writeSide, 4) == -1)
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throw SysError("dupping builder's stdout/stderr");
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throw SysError("dupping builder's stdout/stderr");
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/* XXX: Pass `buildTimeout' to the hook? */
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execl(buildHook.c_str(), buildHook.c_str(), thisSystem.c_str(),
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execl(buildHook.c_str(), buildHook.c_str(), thisSystem.c_str(),
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(format("%1%") % maxSilentTime).str().c_str(),
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(format("%1%") % maxSilentTime).str().c_str(),
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(format("%1%") % printBuildTrace).str().c_str(),
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(format("%1%") % printBuildTrace).str().c_str(),
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@ -2667,6 +2671,13 @@ void Worker::waitForInput()
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timeout.tv_usec = 0;
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timeout.tv_usec = 0;
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time_t before = time(0);
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time_t before = time(0);
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/* If a global timeout has been set, sleep until it's done. */
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if (buildTimeout != 0) {
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useTimeout = true;
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if (lastWait == 0 || lastWait > before) lastWait = before;
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timeout.tv_sec = std::max((time_t) 0, lastWait + buildTimeout - before);
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}
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/* If we're monitoring for silence on stdout/stderr, sleep until
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/* If we're monitoring for silence on stdout/stderr, sleep until
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the first deadline for any child. */
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the first deadline for any child. */
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if (maxSilentTime != 0) {
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if (maxSilentTime != 0) {
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@ -2678,8 +2689,11 @@ void Worker::waitForInput()
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}
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}
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}
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}
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if (oldest) {
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if (oldest) {
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time_t silenceTimeout = std::max((time_t) 0, oldest + maxSilentTime - before);
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timeout.tv_sec = useTimeout
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? std::min(silenceTimeout, timeout.tv_sec)
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: silenceTimeout;
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useTimeout = true;
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useTimeout = true;
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timeout.tv_sec = std::max((time_t) 0, oldest + maxSilentTime - before);
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printMsg(lvlVomit, format("sleeping %1% seconds") % timeout.tv_sec);
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printMsg(lvlVomit, format("sleeping %1% seconds") % timeout.tv_sec);
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}
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}
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}
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}
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@ -2717,6 +2731,9 @@ void Worker::waitForInput()
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time_t after = time(0);
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time_t after = time(0);
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/* Keep track of when we were last called. */
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lastWait = after;
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/* Process all available file descriptors. */
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/* Process all available file descriptors. */
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/* Since goals may be canceled from inside the loop below (causing
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/* Since goals may be canceled from inside the loop below (causing
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@ -2765,6 +2782,15 @@ void Worker::waitForInput()
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% goal->getName() % maxSilentTime);
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% goal->getName() % maxSilentTime);
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goal->cancel();
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goal->cancel();
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}
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}
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if (buildTimeout != 0 &&
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after - before >= (time_t) buildTimeout)
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{
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printMsg(lvlError,
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format("%1% timed out after %2% seconds of activity")
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% goal->getName() % buildTimeout);
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goal->cancel();
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}
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}
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}
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if (!waitingForAWhile.empty() && lastWokenUp + wakeUpInterval <= after) {
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if (!waitingForAWhile.empty() && lastWokenUp + wakeUpInterval <= after) {
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@ -26,6 +26,7 @@ unsigned int buildCores = 1;
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bool readOnlyMode = false;
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bool readOnlyMode = false;
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string thisSystem = "unset";
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string thisSystem = "unset";
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time_t maxSilentTime = 0;
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time_t maxSilentTime = 0;
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time_t buildTimeout = 0;
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Paths substituters;
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Paths substituters;
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bool useBuildHook = true;
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bool useBuildHook = true;
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bool printBuildTrace = false;
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bool printBuildTrace = false;
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@ -72,6 +72,10 @@ extern string thisSystem;
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infinity. */
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infinity. */
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extern time_t maxSilentTime;
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extern time_t maxSilentTime;
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/* The maximum duration in seconds that a builder can run. 0 means
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infinity. */
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extern time_t buildTimeout;
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/* The substituters. There are programs that can somehow realise a
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/* The substituters. There are programs that can somehow realise a
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store path without building, e.g., by downloading it or copying it
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store path without building, e.g., by downloading it or copying it
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from a CD. */
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from a CD. */
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@ -8,7 +8,7 @@ TESTS = init.sh hash.sh lang.sh add.sh simple.sh dependencies.sh \
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referrers.sh user-envs.sh logging.sh nix-build.sh misc.sh fixed.sh \
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referrers.sh user-envs.sh logging.sh nix-build.sh misc.sh fixed.sh \
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gc-runtime.sh install-package.sh check-refs.sh filter-source.sh \
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gc-runtime.sh install-package.sh check-refs.sh filter-source.sh \
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remote-store.sh export.sh export-graph.sh negative-caching.sh \
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remote-store.sh export.sh export-graph.sh negative-caching.sh \
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binary-patching.sh
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binary-patching.sh timeout.sh
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XFAIL_TESTS =
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XFAIL_TESTS =
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@ -33,5 +33,6 @@ EXTRA_DIST = $(TESTS) \
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export-graph.nix \
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export-graph.nix \
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negative-caching.nix \
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negative-caching.nix \
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binary-patching.nix \
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binary-patching.nix \
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timeout.nix timeout.builder.sh \
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$(wildcard lang/*.nix) $(wildcard lang/*.exp) $(wildcard lang/*.exp.xml) $(wildcard lang/*.flags) \
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$(wildcard lang/*.nix) $(wildcard lang/*.exp) $(wildcard lang/*.exp.xml) $(wildcard lang/*.flags) \
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common.sh.in
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common.sh.in
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2
tests/timeout.builder.sh
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2
tests/timeout.builder.sh
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@ -0,0 +1,2 @@
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echo "\`timeout' builder entering an infinite loop"
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while true ; do : ; done
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8
tests/timeout.nix
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8
tests/timeout.nix
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@ -0,0 +1,8 @@
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with import ./config.nix;
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mkDerivation {
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name = "timeout";
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builder = ./timeout.builder.sh;
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PATH = "";
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goodPath = path;
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}
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24
tests/timeout.sh
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24
tests/timeout.sh
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@ -0,0 +1,24 @@
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# Test the `--timeout' option.
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source common.sh
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drvPath=$($nixinstantiate timeout.nix)
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test "$($nixstore -q --binding system "$drvPath")" = "$system"
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echo "derivation is $drvPath"
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failed=0
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messages="`$nixstore -r --timeout 2 $drvPath 2>&1 || failed=1`"
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if test $failed -ne 0; then
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echo "error: \`nix-store' succeeded; should have timed out" >&2
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exit 1
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fi
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if ! echo "$messages" | grep "timed out"; then
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echo "error: \`nix-store' may have failed for reasons other than timeout" >&2
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echo >&2
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echo "output of \`nix-store' follows:" >&2
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echo "$messages" >&2
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exit 1
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fi
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