lix/perl/lib/Nix/Store.xs
Eelco Dolstra 993fa94fb4 * Move initialisation of variables like nixConfDir from libmain to
libstore so that the Perl bindings can use it as well.  It's vital
  that the Perl bindings use the configuration file, because otherwise
  nix-copy-closure will fail with a ‘database locked’ message if the
  value of ‘use-sqlite-wal’ is changed from the default.
2011-11-22 17:28:41 +00:00

149 lines
3.7 KiB
Plaintext

#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"
/* Prevent a clash between some Perl and libstdc++ macros. */
#undef do_open
#undef do_close
#include <store-api.hh>
#include <globals.hh>
#include <misc.hh>
#include <util.hh>
using namespace nix;
void doInit()
{
if (!store) {
try {
setDefaultsFromEnvironment();
store = openStore();
} catch (Error & e) {
croak(e.what());
}
}
}
MODULE = Nix::Store PACKAGE = Nix::Store
PROTOTYPES: ENABLE
void init()
CODE:
doInit();
int isValidPath(char * path)
CODE:
try {
doInit();
RETVAL = store->isValidPath(path);
} catch (Error & e) {
croak(e.what());
}
OUTPUT:
RETVAL
SV * queryReferences(char * path)
PPCODE:
try {
doInit();
PathSet paths;
store->queryReferences(path, paths);
for (PathSet::iterator i = paths.begin(); i != paths.end(); ++i)
XPUSHs(sv_2mortal(newSVpv(i->c_str(), 0)));
} catch (Error & e) {
croak(e.what());
}
SV * queryPathHash(char * path)
PPCODE:
try {
doInit();
Hash hash = store->queryPathHash(path);
string s = "sha256:" + printHash(hash);
XPUSHs(sv_2mortal(newSVpv(s.c_str(), 0)));
} catch (Error & e) {
croak(e.what());
}
SV * queryDeriver(char * path)
PPCODE:
try {
doInit();
Path deriver = store->queryDeriver(path);
if (deriver == "") XSRETURN_UNDEF;
XPUSHs(sv_2mortal(newSVpv(deriver.c_str(), 0)));
} catch (Error & e) {
croak(e.what());
}
SV * queryPathInfo(char * path)
PPCODE:
try {
doInit();
ValidPathInfo info = store->queryPathInfo(path);
if (info.deriver == "")
XPUSHs(&PL_sv_undef);
else
XPUSHs(sv_2mortal(newSVpv(info.deriver.c_str(), 0)));
string s = "sha256:" + printHash(info.hash);
XPUSHs(sv_2mortal(newSVpv(s.c_str(), 0)));
mXPUSHi(info.registrationTime);
mXPUSHi(info.narSize);
AV * arr = newAV();
for (PathSet::iterator i = info.references.begin(); i != info.references.end(); ++i)
av_push(arr, newSVpv(i->c_str(), 0));
XPUSHs(sv_2mortal(newRV((SV *) arr)));
} catch (Error & e) {
croak(e.what());
}
SV * computeFSClosure(int flipDirection, int includeOutputs, ...)
PPCODE:
try {
doInit();
PathSet paths;
for (int n = 2; n < items; ++n)
computeFSClosure(*store, SvPV_nolen(ST(n)), paths, flipDirection, includeOutputs);
for (PathSet::iterator i = paths.begin(); i != paths.end(); ++i)
XPUSHs(sv_2mortal(newSVpv(i->c_str(), 0)));
} catch (Error & e) {
croak(e.what());
}
SV * topoSortPaths(...)
PPCODE:
try {
doInit();
PathSet paths;
for (int n = 0; n < items; ++n) paths.insert(SvPV_nolen(ST(n)));
Paths sorted = topoSortPaths(*store, paths);
for (Paths::iterator i = sorted.begin(); i != sorted.end(); ++i)
XPUSHs(sv_2mortal(newSVpv(i->c_str(), 0)));
} catch (Error & e) {
croak(e.what());
}
SV * followLinksToStorePath(char * path)
CODE:
try {
doInit();
RETVAL = newSVpv(followLinksToStorePath(path).c_str(), 0);
} catch (Error & e) {
croak(e.what());
}
OUTPUT:
RETVAL