Android timezone data load for adb-shell

Signed-off-by: Seonghyun Kim <[email protected]>

Author: ksh8281

src/Escargot.h

@@ -293,6 +293,7 @@ extern "C" {
 #if defined(OS_WINDOWS)
 #include <icu.h>
 #else
+#include <unicode/utypes.h>
 #include <unicode/locid.h>
 #include <unicode/uchar.h>
 #include <unicode/ustring.h>

src/runtime/Global.cpp

@@ -26,6 +26,41 @@
 #include "runtime/ScriptFunctionObject.h"
 #include "runtime/ScriptSimpleFunctionObject.h"
 
+// https://cs.android.com/android/platform/superproject/main/+/main:external/icu/libandroidicuinit/IcuRegistration.cpp
+#if defined(OS_ANDROID) && defined(ENABLE_ICU) && defined(ESCARGOT_ENABLE_TEST)
+#include <sys/stat.h>
+#include <stdbool.h>
+
+static bool directoryExists(const char* path)
+{
+    struct stat info;
+    if (stat(path, &info) != 0)
+        return false;
+    else
+        return (info.st_mode & S_IFDIR) != 0;
+}
+
+static std::string getTimeZoneModulePath()
+{
+    const char* tzdataModulePathPrefix = getenv("ANDROID_TZDATA_ROOT");
+    if (tzdataModulePathPrefix == NULL) {
+        return "";
+    }
+
+    std::string ret;
+
+    for (int version = 1; version < 128; version++) {
+        std::string tzdataModulePath = tzdataModulePathPrefix;
+        tzdataModulePath += "/etc/tz/versioned/" + std::to_string(version) + "/icu";
+        if (directoryExists(tzdataModulePath.data())) {
+            ret = tzdataModulePath;
+        }
+    }
+
+    return ret;
+}
+#endif
+
 namespace Escargot {
 
 bool Global::inited;
@@ -60,6 +95,15 @@ void Global::initialize(Platform* platform)
     DECLARE_SCRIPTSIMPLEFUNCTION_LIST(INIT_SCRIPTSIMPLEFUNCTION_TAGS);
 #undef INIT_SCRIPTSIMPLEFUNCTION_TAGS
 
+#if defined(OS_ANDROID) && defined(ENABLE_ICU) && defined(ESCARGOT_ENABLE_TEST)
+    // android timezone data load for adb-shell
+    std::string tzPath = getTimeZoneModulePath();
+    if (tzPath.size()) {
+        UErrorCode status = U_ZERO_ERROR;
+        u_setTimeZoneFilesDirectory(tzPath.data(), &status);
+    }
+#endif
+
     inited = true;
 }
 

third_party/runtime_icu_binder/ICUPolyfill.h

@@ -20,6 +20,8 @@
 #include "RuntimeICUBinder.h"
 
 #define u_getVersion RuntimeICUBinder::ICU::instance().u_getVersion
+#define u_setDataDirectory RuntimeICUBinder::ICU::instance().u_setDataDirectory
+#define u_setTimeZoneFilesDirectory RuntimeICUBinder::ICU::instance().u_setTimeZoneFilesDirectory
 
 #define u_tolower RuntimeICUBinder::ICU::instance().u_tolower
 #define u_toupper RuntimeICUBinder::ICU::instance().u_toupper

third_party/runtime_icu_binder/RuntimeICUBinder.h

@@ -100,6 +100,8 @@ namespace RuntimeICUBinder {
 
 #define FOR_EACH_UC_VOID_OP(F)                                                                                                                                                                                 \
     F(u_getVersion, void(CALLCONV*)(UVersionInfo versionArray), void)                                                                                                                                          \
+    F(u_setDataDirectory, void(CALLCONV*)(const char*), void)                                                                                                                                                  \
+    F(u_setTimeZoneFilesDirectory, void(CALLCONV*)(const char*, UErrorCode*), void)                                                                                                                            \
     F(uiter_setString, void(CALLCONV*)(UCharIterator * iter, const UChar* s, int32_t length), void)                                                                                                            \
     F(ucnv_close, void(CALLCONV*)(UConverter * converter), void)                                                                                                                                               \
     F(ucnv_toUnicode, void(CALLCONV*)(UConverter * converter, UChar * *target, const UChar* targetLimit, const char** source, const char* sourceLimit, int32_t* offsets, UBool flush, UErrorCode* err), void)  \