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Set runfiles env vars in libjvm_stub #57

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merged 1 commit into from
Mar 14, 2022
Merged

Set runfiles env vars in libjvm_stub #57

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24 changes: 21 additions & 3 deletions jni/tools/libjvm_stub/bazel.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -13,9 +13,11 @@
// limitations under the License.

#include <algorithm>
#include <cstdlib>
#include <fstream>
#include <iostream>
#include <string>
#include <utility>
#include <vector>

#include "jni/tools/libjvm_stub/current_java_runtime.h"
#include "rules_jni_internal.h"
Expand All @@ -25,8 +27,6 @@ using ::bazel::tools::cpp::runfiles::Runfiles;

static const char* rules_jni_arg0 = "";

void rules_jni_init(const char* argv0) { rules_jni_arg0 = argv0; }

static Runfiles* get_runfiles() {
Runfiles* runfiles = Runfiles::CreateForTest();
if (runfiles != nullptr) {
Expand All @@ -35,6 +35,24 @@ static Runfiles* get_runfiles() {
return Runfiles::Create(rules_jni_arg0);
}

void rules_jni_init(const char* argv0) {
rules_jni_arg0 = argv0;
Runfiles* runfiles = get_runfiles();
if (runfiles != nullptr) {
std::vector<std::pair<std::string, std::string>> envvars =
runfiles->EnvVars();
// Setting the runfiles variables for the current process is the only way
// to get them to the Java runfiles library.
for (const std::pair<std::string, std::string>& envvar : envvars) {
#ifdef _WIN32
_putenv_s(envvar.first.c_str(), envvar.second.c_str());
#else
setenv(envvar.first.c_str(), envvar.second.c_str(), 1);
#endif
}
}
}

static bool ends_with(const std::string& str, const std::string& suffix) {
if (str.size() < suffix.size()) {
return false;
Expand Down