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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/ByteBuffer.h>
#include <AK/JsonArray.h>
#include <AK/JsonObject.h>
#include <AK/JsonValue.h>
#include <AK/StringBuilder.h>
#include <LibCore/File.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
static bool use_color = false;
static void print(const String& name, const JsonValue&, Vector<String>& trail);
static const char* color_name = "";
static const char* color_index = "";
static const char* color_brace = "";
static const char* color_bool = "";
static const char* color_null = "";
static const char* color_string = "";
static const char* color_off = "";
int main(int argc, char** argv)
{
if (pledge("stdio tty rpath", nullptr) < 0) {
perror("pledge");
return 1;
}
if (isatty(STDOUT_FILENO))
use_color = true;
if (pledge("stdio rpath", nullptr) < 0) {
perror("pledge");
return 1;
}
if (argc != 2 || !strcmp(argv[1], "--help")) {
fprintf(stderr, "usage: gron <file>\n");
fprintf(stderr, "Print each value in a JSON file with its fully expanded key.\n");
return 0;
}
auto file = Core::File::construct(argv[1]);
if (!file->open(Core::OpenMode::ReadOnly)) {
fprintf(stderr, "Couldn't open %s for reading: %s\n", argv[1], file->error_string());
return 1;
}
if (pledge("stdio", nullptr) < 0) {
perror("pledge");
return 1;
}
auto file_contents = file->read_all();
auto json = JsonValue::from_string(file_contents);
VERIFY(json.has_value());
if (use_color) {
color_name = "\033[33;1m";
color_index = "\033[35;1m";
color_brace = "\033[36m";
color_bool = "\033[32;1m";
color_string = "\033[31;1m";
color_null = "\033[34;1m";
color_off = "\033[0m";
}
Vector<String> trail;
print("json", json.value(), trail);
return 0;
}
static void print(const String& name, const JsonValue& value, Vector<String>& trail)
{
for (size_t i = 0; i < trail.size(); ++i)
printf("%s", trail[i].characters());
printf("%s%s%s = ", color_name, name.characters(), color_off);
if (value.is_object()) {
printf("%s{}%s;\n", color_brace, color_off);
trail.append(String::formatted("{}{}{}.", color_name, name, color_off));
value.as_object().for_each_member([&](auto& on, auto& ov) { print(on, ov, trail); });
trail.take_last();
return;
}
if (value.is_array()) {
printf("%s[]%s;\n", color_brace, color_off);
trail.append(String::formatted("{}{}{}", color_name, name, color_off));
for (int i = 0; i < value.as_array().size(); ++i) {
auto element_name = String::formatted("{}{}[{}{}{}{}{}]{}", color_off, color_brace, color_off, color_index, i, color_off, color_brace, color_off);
print(element_name, value.as_array()[i], trail);
}
trail.take_last();
return;
}
switch (value.type()) {
case JsonValue::Type::Null:
printf("%s", color_null);
break;
case JsonValue::Type::Bool:
printf("%s", color_bool);
break;
case JsonValue::Type::String:
printf("%s", color_string);
break;
default:
printf("%s", color_index);
break;
}
printf("%s%s;\n", value.serialized<StringBuilder>().characters(), color_off);
}
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