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C API: if store doesn't have a version, return an empty string

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José Luis Lafuente 2024-02-22 00:22:54 +01:00 • committed by José Luis Lafuente
parent dfdb90dc8e
commit 24c8f6864d
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3 changed files with 10 additions and 6 deletions
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8
src/libstore/c/nix_api_store.cc
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@ -72,11 +72,9 @@ nix_err nix_store_get_version(nix_c_context * context, Store * store, char * des
context->last_err_code = NIX_OK;
try {
auto res = store->ptr->getVersion();
if (res) {
return nix_export_std_string(context, *res, dest, n);
} else {
return nix_set_err_msg(context, NIX_ERR_UNKNOWN, "store does not have a version");
}
if (!res)
res = "";
return nix_export_std_string(context, *res, dest, n);
}
NIXC_CATCH_ERRS
}

3
src/libstore/c/nix_api_store.h
View file

@ -125,7 +125,8 @@ nix_err nix_store_build(
void (*callback)(void * userdata, const char * outname, const char * out));
/**
* @brief get the version of a nix store
* @brief get the version of a nix store.
* If the store doesn't have a version (like the dummy store), returns an empty string.
* @param[out] context Optional, stores error information
* @param[in] store nix store reference
* @param[out] dest The allocated area to write the string to.