lix/src/libmain/shared.hh
Eelco Dolstra 9de6bc5d05 nix-store -r: Add ‘--ignore-unknown’ flag
This flag causes paths that do not have a known substitute to be
quietly ignored.  This is mostly useful for Charon, allowing it to
speed up deployment by letting a machine use substitutes for all
substitutable paths, instead of uploading them.  The latter is
frequently faster, e.g. if the target machine has a fast Internet
connection while the source machine is on a slow ADSL line.
2012-11-20 00:27:25 +01:00

59 lines
1.4 KiB
C++

#pragma once
#include "util.hh"
#include <signal.h>
/* These are not implemented here, but must be implemented by a
program linking against libmain. */
/* Main program. Called by main() after the ATerm library has been
initialised and some default arguments have been processed (and
removed from `args'). main() will catch all exceptions. */
void run(nix::Strings args);
/* Should print a help message to stdout and return. */
void printHelp();
extern std::string programId;
namespace nix {
MakeError(UsageError, nix::Error);
class StoreAPI;
/* Ugh. No better place to put this. */
void printGCWarning();
void printMissing(StoreAPI & store, const PathSet & paths);
void printMissing(const PathSet & willBuild,
const PathSet & willSubstitute, const PathSet & unknown,
unsigned long long downloadSize, unsigned long long narSize);
template<class N> N getIntArg(const string & opt,
Strings::iterator & i, const Strings::iterator & end)
{
++i;
if (i == end) throw UsageError(format("`%1%' requires an argument") % opt);
N n;
if (!string2Int(*i, n))
throw UsageError(format("`%1%' requires an integer argument") % opt);
return n;
}
/* Show the manual page for the specified program. */
void showManPage(const string & name);
extern volatile ::sig_atomic_t blockInt;
/* Exit code of the program. */
extern int exitCode;
extern char * * argvSaved;
}