lix-releng-staging/src/libmain/shared.hh

117 lines
2.7 KiB
C++
Raw Normal View History

#pragma once
#include "util.hh"
#include "args.hh"
#include "common-args.hh"
#include "path.hh"
#include "derived-path.hh"
#include <signal.h>
#include <locale>
2014-08-13 01:50:44 +00:00
namespace nix {
2014-08-13 01:50:44 +00:00
class Exit : public std::exception
{
public:
int status;
Exit() : status(0) { }
Exit(int status) : status(status) { }
2017-11-07 20:42:34 +00:00
virtual ~Exit();
2014-08-13 01:50:44 +00:00
};
2014-08-13 01:50:44 +00:00
int handleExceptions(const string & programName, std::function<void()> fun);
/* Don't forget to call initPlugins() after settings are initialized! */
2014-08-13 01:50:44 +00:00
void initNix();
2014-08-13 01:50:44 +00:00
void parseCmdLine(int argc, char * * argv,
std::function<bool(Strings::iterator & arg, const Strings::iterator & end)> parseArg);
2009-11-24 12:26:25 +00:00
void parseCmdLine(const string & programName, const Strings & args,
std::function<bool(Strings::iterator & arg, const Strings::iterator & end)> parseArg);
2014-08-13 01:50:44 +00:00
void printVersion(const string & programName);
/* Ugh. No better place to put this. */
void printGCWarning();
class Store;
struct StorePathWithOutputs;
void printMissing(
ref<Store> store,
2021-04-05 13:48:18 +00:00
const std::vector<DerivedPath> & paths,
Verbosity lvl = lvlInfo);
void printMissing(ref<Store> store, const StorePathSet & willBuild,
const StorePathSet & willSubstitute, const StorePathSet & unknown,
2020-07-30 11:10:49 +00:00
uint64_t downloadSize, uint64_t narSize, Verbosity lvl = lvlInfo);
2014-08-13 01:50:44 +00:00
string getArg(const string & opt,
Strings::iterator & i, const Strings::iterator & end);
2009-11-24 12:26:25 +00:00
template<class N> N getIntArg(const string & opt,
Strings::iterator & i, const Strings::iterator & end, bool allowUnit)
2009-11-24 12:26:25 +00:00
{
++i;
if (i == end) throw UsageError("'%1%' requires an argument", opt);
return string2IntWithUnitPrefix<N>(*i);
2009-11-24 12:26:25 +00:00
}
struct LegacyArgs : public MixCommonArgs
{
std::function<bool(Strings::iterator & arg, const Strings::iterator & end)> parseArg;
LegacyArgs(const std::string & programName,
std::function<bool(Strings::iterator & arg, const Strings::iterator & end)> parseArg);
bool processFlag(Strings::iterator & pos, Strings::iterator end) override;
bool processArgs(const Strings & args, bool finish) override;
};
/* Show the manual page for the specified program. */
void showManPage(const string & name);
/* The constructor of this class starts a pager if stdout is a
terminal and $PAGER is set. Stdout is redirected to the pager. */
class RunPager
{
public:
RunPager();
~RunPager();
private:
Pid pid;
};
extern volatile ::sig_atomic_t blockInt;
/* GC helpers. */
2020-07-30 11:10:49 +00:00
string showBytes(uint64_t bytes);
2015-09-17 23:22:06 +00:00
struct GCResults;
struct PrintFreed
{
bool show;
const GCResults & results;
PrintFreed(bool show, const GCResults & results)
: show(show), results(results) { }
~PrintFreed();
};
/* Install a SIGSEGV handler to detect stack overflows. */
void detectStackOverflow();
}