forked from lix-project/lix
bbe97dff8b
Most functions now take a StorePath argument rather than a Path (which is just an alias for std::string). The StorePath constructor ensures that the path is syntactically correct (i.e. it looks like <store-dir>/<base32-hash>-<name>). Similarly, functions like buildPaths() now take a StorePathWithOutputs, rather than abusing Path by adding a '!<outputs>' suffix. Note that the StorePath type is implemented in Rust. This involves some hackery to allow Rust values to be used directly in C++, via a helper type whose destructor calls the Rust type's drop() function. The main issue is the dynamic nature of C++ move semantics: after we have moved a Rust value, we should not call the drop function on the original value. So when we move a value, we set the original value to bitwise zero, and the destructor only calls drop() if the value is not bitwise zero. This should be sufficient for most types. Also lots of minor cleanups to the C++ API to make it more modern (e.g. using std::optional and std::string_view in some places).
346 lines
10 KiB
Plaintext
346 lines
10 KiB
Plaintext
#include "config.h"
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#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 "derivations.hh"
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#include "globals.hh"
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#include "store-api.hh"
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#include "util.hh"
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#include "crypto.hh"
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#if HAVE_SODIUM
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#include <sodium.h>
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#endif
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using namespace nix;
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static ref<Store> store()
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{
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static std::shared_ptr<Store> _store;
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if (!_store) {
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try {
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loadConfFile();
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settings.lockCPU = false;
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_store = openStore();
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} catch (Error & e) {
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croak("%s", e.what());
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}
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}
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return ref<Store>(_store);
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}
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MODULE = Nix::Store PACKAGE = Nix::Store
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PROTOTYPES: ENABLE
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#undef dNOOP // Hack to work around "error: declaration of 'Perl___notused' has a different language linkage" error message on clang.
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#define dNOOP
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void init()
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CODE:
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store();
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void setVerbosity(int level)
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CODE:
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verbosity = (Verbosity) level;
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int isValidPath(char * path)
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CODE:
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try {
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RETVAL = store()->isValidPath(store()->parseStorePath(path));
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} catch (Error & e) {
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croak("%s", 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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for (auto & i : store()->queryPathInfo(store()->parseStorePath(path))->references)
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XPUSHs(sv_2mortal(newSVpv(store()->printStorePath(i).c_str(), 0)));
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} catch (Error & e) {
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croak("%s", 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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auto s = store()->queryPathInfo(store()->parseStorePath(path))->narHash.to_string();
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XPUSHs(sv_2mortal(newSVpv(s.c_str(), 0)));
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} catch (Error & e) {
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croak("%s", 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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auto info = store()->queryPathInfo(store()->parseStorePath(path));
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if (!info->deriver) XSRETURN_UNDEF;
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XPUSHs(sv_2mortal(newSVpv(store()->printStorePath(*info->deriver).c_str(), 0)));
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} catch (Error & e) {
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croak("%s", e.what());
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}
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SV * queryPathInfo(char * path, int base32)
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PPCODE:
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try {
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auto info = store()->queryPathInfo(store()->parseStorePath(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(store()->printStorePath(*info->deriver).c_str(), 0)));
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auto s = info->narHash.to_string(base32 ? Base32 : Base16);
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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 (auto & i : info->references)
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av_push(arr, newSVpv(store()->printStorePath(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("%s", e.what());
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}
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SV * queryPathFromHashPart(char * hashPart)
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PPCODE:
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try {
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auto path = store()->queryPathFromHashPart(hashPart);
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XPUSHs(sv_2mortal(newSVpv(path ? store()->printStorePath(*path).c_str() : "", 0)));
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} catch (Error & e) {
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croak("%s", 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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StorePathSet paths;
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for (int n = 2; n < items; ++n)
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store()->computeFSClosure(store()->parseStorePath(SvPV_nolen(ST(n))), paths, flipDirection, includeOutputs);
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for (auto & i : paths)
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XPUSHs(sv_2mortal(newSVpv(store()->printStorePath(i).c_str(), 0)));
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} catch (Error & e) {
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croak("%s", 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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StorePathSet paths;
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for (int n = 0; n < items; ++n) paths.insert(store()->parseStorePath(SvPV_nolen(ST(n))));
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auto sorted = store()->topoSortPaths(paths);
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for (auto & i : sorted)
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XPUSHs(sv_2mortal(newSVpv(store()->printStorePath(i).c_str(), 0)));
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} catch (Error & e) {
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croak("%s", 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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RETVAL = newSVpv(store()->printStorePath(store()->followLinksToStorePath(path)).c_str(), 0);
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} catch (Error & e) {
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croak("%s", e.what());
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}
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OUTPUT:
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RETVAL
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void exportPaths(int fd, ...)
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PPCODE:
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try {
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StorePathSet paths;
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for (int n = 1; n < items; ++n) paths.insert(store()->parseStorePath(SvPV_nolen(ST(n))));
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FdSink sink(fd);
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store()->exportPaths(paths, sink);
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} catch (Error & e) {
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croak("%s", e.what());
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}
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void importPaths(int fd, int dontCheckSigs)
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PPCODE:
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try {
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FdSource source(fd);
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store()->importPaths(source, nullptr, dontCheckSigs ? NoCheckSigs : CheckSigs);
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} catch (Error & e) {
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croak("%s", e.what());
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}
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SV * hashPath(char * algo, int base32, char * path)
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PPCODE:
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try {
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Hash h = hashPath(parseHashType(algo), path).first;
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auto s = h.to_string(base32 ? Base32 : Base16, false);
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XPUSHs(sv_2mortal(newSVpv(s.c_str(), 0)));
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} catch (Error & e) {
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croak("%s", e.what());
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}
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SV * hashFile(char * algo, int base32, char * path)
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PPCODE:
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try {
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Hash h = hashFile(parseHashType(algo), path);
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auto s = h.to_string(base32 ? Base32 : Base16, false);
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XPUSHs(sv_2mortal(newSVpv(s.c_str(), 0)));
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} catch (Error & e) {
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croak("%s", e.what());
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}
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SV * hashString(char * algo, int base32, char * s)
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PPCODE:
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try {
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Hash h = hashString(parseHashType(algo), s);
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auto s = h.to_string(base32 ? Base32 : Base16, false);
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XPUSHs(sv_2mortal(newSVpv(s.c_str(), 0)));
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} catch (Error & e) {
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croak("%s", e.what());
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}
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SV * convertHash(char * algo, char * s, int toBase32)
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PPCODE:
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try {
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Hash h(s, parseHashType(algo));
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string s = h.to_string(toBase32 ? Base32 : Base16, false);
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XPUSHs(sv_2mortal(newSVpv(s.c_str(), 0)));
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} catch (Error & e) {
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croak("%s", e.what());
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}
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SV * signString(char * secretKey_, char * msg)
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PPCODE:
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try {
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#if HAVE_SODIUM
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auto sig = SecretKey(secretKey_).signDetached(msg);
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XPUSHs(sv_2mortal(newSVpv(sig.c_str(), sig.size())));
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#else
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throw Error("Nix was not compiled with libsodium, required for signed binary cache support");
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#endif
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} catch (Error & e) {
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croak("%s", e.what());
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}
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int checkSignature(SV * publicKey_, SV * sig_, char * msg)
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CODE:
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try {
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#if HAVE_SODIUM
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STRLEN publicKeyLen;
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unsigned char * publicKey = (unsigned char *) SvPV(publicKey_, publicKeyLen);
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if (publicKeyLen != crypto_sign_PUBLICKEYBYTES)
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throw Error("public key is not valid");
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STRLEN sigLen;
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unsigned char * sig = (unsigned char *) SvPV(sig_, sigLen);
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if (sigLen != crypto_sign_BYTES)
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throw Error("signature is not valid");
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RETVAL = crypto_sign_verify_detached(sig, (unsigned char *) msg, strlen(msg), publicKey) == 0;
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#else
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throw Error("Nix was not compiled with libsodium, required for signed binary cache support");
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#endif
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} catch (Error & e) {
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croak("%s", e.what());
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}
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OUTPUT:
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RETVAL
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SV * addToStore(char * srcPath, int recursive, char * algo)
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PPCODE:
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try {
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auto path = store()->addToStore(std::string(baseNameOf(srcPath)), srcPath, recursive, parseHashType(algo));
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XPUSHs(sv_2mortal(newSVpv(store()->printStorePath(path).c_str(), 0)));
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} catch (Error & e) {
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croak("%s", e.what());
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}
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SV * makeFixedOutputPath(int recursive, char * algo, char * hash, char * name)
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PPCODE:
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try {
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Hash h(hash, parseHashType(algo));
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auto path = store()->makeFixedOutputPath(recursive, h, name);
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XPUSHs(sv_2mortal(newSVpv(store()->printStorePath(path).c_str(), 0)));
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} catch (Error & e) {
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croak("%s", e.what());
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}
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SV * derivationFromPath(char * drvPath)
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PREINIT:
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HV *hash;
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CODE:
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try {
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Derivation drv = store()->derivationFromPath(store()->parseStorePath(drvPath));
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hash = newHV();
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HV * outputs = newHV();
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for (auto & i : drv.outputs)
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hv_store(outputs, i.first.c_str(), i.first.size(), newSVpv(store()->printStorePath(i.second.path).c_str(), 0), 0);
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hv_stores(hash, "outputs", newRV((SV *) outputs));
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AV * inputDrvs = newAV();
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for (auto & i : drv.inputDrvs)
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av_push(inputDrvs, newSVpv(store()->printStorePath(i.first).c_str(), 0)); // !!! ignores i->second
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hv_stores(hash, "inputDrvs", newRV((SV *) inputDrvs));
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AV * inputSrcs = newAV();
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for (auto & i : drv.inputSrcs)
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av_push(inputSrcs, newSVpv(store()->printStorePath(i).c_str(), 0));
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hv_stores(hash, "inputSrcs", newRV((SV *) inputSrcs));
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hv_stores(hash, "platform", newSVpv(drv.platform.c_str(), 0));
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hv_stores(hash, "builder", newSVpv(drv.builder.c_str(), 0));
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AV * args = newAV();
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for (auto & i : drv.args)
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av_push(args, newSVpv(i.c_str(), 0));
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hv_stores(hash, "args", newRV((SV *) args));
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HV * env = newHV();
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for (auto & i : drv.env)
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hv_store(env, i.first.c_str(), i.first.size(), newSVpv(i.second.c_str(), 0), 0);
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hv_stores(hash, "env", newRV((SV *) env));
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RETVAL = newRV_noinc((SV *)hash);
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} catch (Error & e) {
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croak("%s", e.what());
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}
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OUTPUT:
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RETVAL
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void addTempRoot(char * storePath)
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PPCODE:
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try {
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store()->addTempRoot(store()->parseStorePath(storePath));
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} catch (Error & e) {
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croak("%s", e.what());
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}
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