5bbd693cae
‘nix-store --export’. * Add a Perl module that provides the functionality of ‘nix-copy-closure --to’. This is used by build-remote.pl so it no longer needs to start a separate nix-copy-closure process. Also, it uses the Perl API to do the export, so it doesn't need to start a separate nix-store process either. As a result, nix-copy-closure and build-remote.pl should no longer fail on very large closures due to an "Argument list too long" error. (Note that having very many dependencies in a single derivation can still fail because the environment can become too large. Can't be helped though.)
161 lines
4 KiB
Text
161 lines
4 KiB
Text
#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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try {
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setDefaultsFromEnvironment();
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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(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(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(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(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(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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SV * topoSortPaths(...)
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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 = 0; n < items; ++n) paths.insert(SvPV_nolen(ST(n)));
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Paths sorted = topoSortPaths(*store, paths);
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for (Paths::iterator i = sorted.begin(); i != sorted.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 * followLinksToStorePath(char * path)
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CODE:
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try {
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doInit();
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RETVAL = newSVpv(followLinksToStorePath(path).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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OUTPUT:
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RETVAL
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void exportPaths(int fd, int sign, ...)
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PPCODE:
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try {
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doInit();
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Paths paths;
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for (int n = 2; n < items; ++n) paths.push_back(SvPV_nolen(ST(n)));
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FdSink sink(fd);
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exportPaths(*store, paths, sign, sink);
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} catch (Error & e) {
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croak(e.what());
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}
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