forked from lix-project/lix
73fe6871c4
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.
130 lines
3.2 KiB
Plaintext
130 lines
3.2 KiB
Plaintext
#include "EXTERN.h"
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#include "perl.h"
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#include "XSUB.h"
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/* Prevent a clash between some Perl and libstdc++ macros. */
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#undef do_open
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#undef do_close
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#include <store-api.hh>
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#include <globals.hh>
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#include <misc.hh>
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#include <util.hh>
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using namespace nix;
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void doInit()
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{
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if (!store) {
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nixStore = canonPath(getEnv("NIX_STORE_DIR", getEnv("NIX_STORE", "/nix/store")));
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nixStateDir = canonPath(getEnv("NIX_STATE_DIR", "/nix/var/nix"));
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nixDBPath = getEnv("NIX_DB_DIR", nixStateDir + "/db");
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try {
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store = openStore();
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} catch (Error & e) {
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croak(e.what());
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}
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}
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}
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MODULE = Nix::Store PACKAGE = Nix::Store
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PROTOTYPES: ENABLE
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void init()
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CODE:
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doInit();
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int isValidPath(path)
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char * path
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CODE:
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try {
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doInit();
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RETVAL = store->isValidPath(path);
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} catch (Error & e) {
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croak(e.what());
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}
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OUTPUT:
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RETVAL
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SV * queryReferences(path)
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char * path
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PPCODE:
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try {
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doInit();
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PathSet paths;
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store->queryReferences(path, paths);
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for (PathSet::iterator i = paths.begin(); i != paths.end(); ++i)
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XPUSHs(sv_2mortal(newSVpv(i->c_str(), 0)));
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} catch (Error & e) {
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croak(e.what());
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}
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SV * queryPathHash(path)
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char * path
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PPCODE:
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try {
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doInit();
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Hash hash = store->queryPathHash(path);
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string s = "sha256:" + printHash(hash);
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XPUSHs(sv_2mortal(newSVpv(s.c_str(), 0)));
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} catch (Error & e) {
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croak(e.what());
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}
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SV * queryDeriver(path)
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char * path
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PPCODE:
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try {
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doInit();
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Path deriver = store->queryDeriver(path);
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if (deriver == "") XSRETURN_UNDEF;
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XPUSHs(sv_2mortal(newSVpv(deriver.c_str(), 0)));
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} catch (Error & e) {
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croak(e.what());
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}
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SV * queryPathInfo(path)
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char * path
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PPCODE:
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try {
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doInit();
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ValidPathInfo info = store->queryPathInfo(path);
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if (info.deriver == "")
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XPUSHs(&PL_sv_undef);
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else
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XPUSHs(sv_2mortal(newSVpv(info.deriver.c_str(), 0)));
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string s = "sha256:" + printHash(info.hash);
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XPUSHs(sv_2mortal(newSVpv(s.c_str(), 0)));
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mXPUSHi(info.registrationTime);
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mXPUSHi(info.narSize);
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AV * arr = newAV();
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for (PathSet::iterator i = info.references.begin(); i != info.references.end(); ++i)
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av_push(arr, newSVpv(i->c_str(), 0));
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XPUSHs(sv_2mortal(newRV((SV *) arr)));
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} catch (Error & e) {
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croak(e.what());
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}
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SV * computeFSClosure(int flipDirection, int includeOutputs, ...)
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PPCODE:
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try {
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doInit();
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PathSet paths;
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for (int n = 2; n < items; ++n)
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computeFSClosure(*store, SvPV_nolen(ST(n)), paths, flipDirection, includeOutputs);
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for (PathSet::iterator i = paths.begin(); i != paths.end(); ++i)
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XPUSHs(sv_2mortal(newSVpv(i->c_str(), 0)));
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} catch (Error & e) {
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croak(e.what());
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}
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