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nix-build, nix-shell: Don't print error message if nix-store/nix-instantiate fails

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This commit is contained in:
Eelco Dolstra 2016-09-21 16:21:47 +02:00
parent c55bf085eb
commit 4546be1b3e
3 changed files with 39 additions and 6 deletions
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2
src/libutil/util.cc
View file

@ -927,7 +927,7 @@ string runProgram(Path program, bool searchPath, const Strings & args,
/* Wait for the child to finish. */ /* Wait for the child to finish. */
int status = pid.wait(true); int status = pid.wait(true);
if (!statusOk(status)) if (!statusOk(status))
throw ExecError(format("program ‘%1%’ %2%") throw ExecError(status, format("program ‘%1%’ %2%")
% program % statusToString(status)); % program % statusToString(status));
return result; return result;

11
src/libutil/util.hh
View file

@ -247,7 +247,16 @@ pid_t startProcess(std::function<void()> fun, const ProcessOptions & options = P
string runProgram(Path program, bool searchPath = false, string runProgram(Path program, bool searchPath = false,
const Strings & args = Strings(), const string & input = ""); const Strings & args = Strings(), const string & input = "");
MakeError(ExecError, Error) class ExecError : public Error
{
public:
int status;
template<typename... Args>
ExecError(int status, Args... args)
: Error(args...), status(status)
{ }
};
/* Convert a list of strings to a null-terminated vector of char /* Convert a list of strings to a null-terminated vector of char
*'s. The result must not be accessed beyond the lifetime of the *'s. The result must not be accessed beyond the lifetime of the

32
src/nix-build/nix-build.cc
View file

@ -60,6 +60,14 @@ std::vector<string> shellwords(const string & s)
return res; return res;
} }
static void maybePrintExecError(ExecError & e)
{
if (WIFEXITED(e.status))
throw Exit(WEXITSTATUS(e.status));
else
throw e;
}
int main(int argc, char ** argv) int main(int argc, char ** argv)
{ {
return handleExceptions(argv[0], [&]() { return handleExceptions(argv[0], [&]() {
@ -346,8 +354,12 @@ int main(int argc, char ** argv)
for (const auto & arg : instArgs) for (const auto & arg : instArgs)
instantiateArgs.push_back(arg); instantiateArgs.push_back(arg);
instantiateArgs.push_back(expr); instantiateArgs.push_back(expr);
auto instOutput = runProgram(settings.nixBinDir + "/nix-instantiate", false, instantiateArgs); try {
drvPaths = tokenizeString<std::vector<string>>(instOutput); auto instOutput = runProgram(settings.nixBinDir + "/nix-instantiate", false, instantiateArgs);
drvPaths = tokenizeString<std::vector<string>>(instOutput);
} catch (ExecError & e) {
maybePrintExecError(e);
}
} else { } else {
drvPaths.push_back(expr); drvPaths.push_back(expr);
} }
@ -370,7 +382,12 @@ int main(int argc, char ** argv)
nixStoreArgs.push_back(input.first); nixStoreArgs.push_back(input.first);
for (const auto & src : drv.inputSrcs) for (const auto & src : drv.inputSrcs)
nixStoreArgs.push_back(src); nixStoreArgs.push_back(src);
runProgram(settings.nixBinDir + "/nix-store", false, nixStoreArgs);
try {
runProgram(settings.nixBinDir + "/nix-store", false, nixStoreArgs);
} catch (ExecError & e) {
maybePrintExecError(e);
}
// Set the environment. // Set the environment.
auto env = getEnv(); auto env = getEnv();
@ -471,7 +488,14 @@ int main(int argc, char ** argv)
nixStoreArgs.push_back(arg); nixStoreArgs.push_back(arg);
for (const auto & path : drvPaths2) for (const auto & path : drvPaths2)
nixStoreArgs.push_back(path); nixStoreArgs.push_back(path);
auto nixStoreRes = runProgram(settings.nixBinDir + "/nix-store", false, nixStoreArgs);
std::string nixStoreRes;
try {
nixStoreRes = runProgram(settings.nixBinDir + "/nix-store", false, nixStoreArgs);
} catch (ExecError & e) {
maybePrintExecError(e);
}
for (const auto & outpath : tokenizeString<std::vector<string>>(nixStoreRes)) for (const auto & outpath : tokenizeString<std::vector<string>>(nixStoreRes))
outPaths.push_back(chomp(outpath)); outPaths.push_back(chomp(outpath));