lix/perl/lib/Nix/Store.xs
Eelco Dolstra 73fe6871c4 * Include the Nix Perl bindings in Nix itself. This will allow the
bindings to be used in Nix's own Perl scripts.

  The only downside is that Perl XS and Automake/libtool don't really
  like each other, so building is a bit tricky.
2011-10-10 18:12:40 +00:00

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#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) {
nixStore = canonPath(getEnv("NIX_STORE_DIR", getEnv("NIX_STORE", "/nix/store")));
nixStateDir = canonPath(getEnv("NIX_STATE_DIR", "/nix/var/nix"));
nixDBPath = getEnv("NIX_DB_DIR", nixStateDir + "/db");
try {
store = openStore();
} catch (Error & e) {
croak(e.what());
}
}
}
MODULE = Nix::Store PACKAGE = Nix::Store
PROTOTYPES: ENABLE
void init()
CODE:
doInit();
int isValidPath(path)
char * path
CODE:
try {
doInit();
RETVAL = store->isValidPath(path);
} catch (Error & e) {
croak(e.what());
}
OUTPUT:
RETVAL
SV * queryReferences(path)
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(path)
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(path)
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(path)
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());
}