472 lines
15 KiB
C++
472 lines
15 KiB
C++
#include "StarFile.hpp"
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#include "json_tool.hpp"
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#include "editor_gui.hpp"
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// Tool for scripting and mass-editing of JSON+Comments files without affecting
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// formatting.
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using namespace Star;
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FormattedJson GenericInputFormat::toJson(String const& input) const {
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return FormattedJson::parse(input);
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}
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String GenericInputFormat::fromJson(FormattedJson const& json) const {
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return json.repr();
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}
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FormattedJson GenericInputFormat::getDefault() const {
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return FormattedJson::ofType(Json::Type::Null);
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}
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FormattedJson CommaSeparatedStrings::toJson(String const& input) const {
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if (input.trim() == "")
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return FormattedJson::ofType(Json::Type::Array);
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StringList strings = input.split(',');
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JsonArray array = strings.transformed(bind(&String::trim, _1, "")).transformed(construct<Json>());
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return Json(array);
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}
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String CommaSeparatedStrings::fromJson(FormattedJson const& json) const {
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StringList strings = json.toJson().toArray().transformed(bind(&Json::toString, _1));
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return strings.join(", ");
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}
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FormattedJson CommaSeparatedStrings::getDefault() const {
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return FormattedJson::ofType(Json::Type::Array);
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}
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FormattedJson StringInputFormat::toJson(String const& input) const {
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return FormattedJson(Json(input));
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}
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String StringInputFormat::fromJson(FormattedJson const& json) const {
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return json.toJson().toString();
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}
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FormattedJson StringInputFormat::getDefault() const {
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return FormattedJson(Json(""));
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}
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String Star::reprWithLineEnding(FormattedJson const& json) {
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// Append a newline, preserving the newline style of the file, e.g windows or
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// unix.
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String repr = json.repr();
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if (repr.contains("\r"))
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return strf("{}\r\n", repr);
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return strf("{}\n", repr);
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}
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void OutputOnSeparateLines::out(FormattedJson const& json) {
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coutf("{}", reprWithLineEnding(json));
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}
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void OutputOnSeparateLines::flush() {}
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void ArrayOutput::out(FormattedJson const& json) {
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if (!m_unique || !m_results.contains(json))
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m_results.append(json);
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}
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void ArrayOutput::flush() {
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FormattedJson array = FormattedJson::ofType(Json::Type::Array);
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for (FormattedJson const& result : m_results) {
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array = array.append(result);
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}
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coutf("{}", reprWithLineEnding(array));
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}
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FormattedJson Star::addOrSet(bool add,
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JsonPath::PathPtr path,
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FormattedJson const& input,
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InsertLocation insertLocation,
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FormattedJson const& value) {
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JsonPath::EmptyPathOp<FormattedJson> emptyPathOp = [&value, add](FormattedJson const& document) {
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if (!add || document.type() == Json::Type::Null)
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return value;
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throw JsonException("Cannot add a value to the entire document, it is not empty.");
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};
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JsonPath::ObjectOp<FormattedJson> objectOp = [&value, &insertLocation](
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FormattedJson const& object, String const& key) {
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if (insertLocation.is<AtBeginning>())
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return object.prepend(key, value);
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if (insertLocation.is<AtEnd>())
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return object.append(key, value);
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if (insertLocation.is<BeforeKey>())
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return object.insertBefore(key, value, insertLocation.get<BeforeKey>().key);
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if (insertLocation.is<AfterKey>())
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return object.insertAfter(key, value, insertLocation.get<AfterKey>().key);
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return object.set(key, value);
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};
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JsonPath::ArrayOp<FormattedJson> arrayOp = [&value, add](FormattedJson const& array, Maybe<size_t> i) {
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if (i.isValid()) {
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if (add)
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return array.insert(*i, value);
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return array.set(*i, value);
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}
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return array.append(value);
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};
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return path->apply(input, emptyPathOp, objectOp, arrayOp);
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}
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void forEachFileRecursive(String const& directory, function<void(String)> func) {
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for (pair<String, bool> entry : File::dirList(directory)) {
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String filename = File::relativeTo(directory, entry.first);
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if (entry.second)
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forEachFileRecursive(filename, func);
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else
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func(filename);
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}
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}
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StringList Star::findFiles(FindInput const& findArgs) {
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StringList matches;
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forEachFileRecursive(findArgs.directory,
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[&findArgs, &matches](String const& filename) {
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if (filename.endsWith(findArgs.filenameSuffix))
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matches.append(filename);
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});
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return matches;
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}
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void forEachChild(FormattedJson const& parent, function<void(FormattedJson const&)> func) {
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if (parent.isType(Json::Type::Object)) {
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for (String const& key : parent.toJson().toObject().keys()) {
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func(parent.get(key));
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}
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} else if (parent.isType(Json::Type::Array)) {
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for (size_t i = 0; i < parent.size(); ++i) {
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func(parent.get(i));
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}
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} else {
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throw JsonPath::TraversalException::format(
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"Cannot get the children of Json type {}, must be either Array or Object", parent.typeName());
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}
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}
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bool process(function<void(FormattedJson const&)> output,
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Command const& command,
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Options const& options,
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FormattedJson const& input) {
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if (command.is<GetCommand>()) {
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GetCommand const& getCmd = command.get<GetCommand>();
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try {
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FormattedJson value = getCmd.path->get(input);
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if (getCmd.children) {
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forEachChild(value, output);
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} else {
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output(value);
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}
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} catch (JsonPath::TraversalException const& e) {
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if (!getCmd.opt)
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throw e;
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}
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} else if (command.is<SetCommand>()) {
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SetCommand const& setCmd = command.get<SetCommand>();
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output(addOrSet(false, setCmd.path, input, options.insertLocation, setCmd.value));
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} else if (command.is<AddCommand>()) {
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AddCommand const& addCmd = command.get<AddCommand>();
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output(addOrSet(true, addCmd.path, input, options.insertLocation, addCmd.value));
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} else if (command.is<RemoveCommand>()) {
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output(command.get<RemoveCommand>().path->remove(input));
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} else {
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starAssert(command.empty());
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output(input);
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}
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return true;
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}
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bool process(
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function<void(FormattedJson const&)> output, Command const& command, Options const& options, String const& input) {
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FormattedJson inJson = FormattedJson::parse(input);
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return process(output, command, options, inJson);
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}
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bool process(
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function<void(FormattedJson const&)> output, Command const& command, Options const& options, Input const& input) {
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if (input.is<JsonLiteralInput>()) {
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return process(output, command, options, input.get<JsonLiteralInput>().json);
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}
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bool success = true;
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StringList files;
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if (input.is<FileInput>()) {
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files = StringList{input.get<FileInput>().filename};
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} else {
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files = findFiles(input.get<FindInput>());
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}
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for (String const& file : files) {
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if (options.inPlace) {
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output = [&file](FormattedJson const& json) { File::writeFile(reprWithLineEnding(json), file); };
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}
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success &= process(output, command, options, File::readFileString(file));
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}
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return success;
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}
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JsonPath::PathPtr parsePath(String const& path) {
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if (path.beginsWith("/"))
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return make_shared<JsonPath::Pointer>(path);
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return make_shared<JsonPath::QueryPath>(path);
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}
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pair<JsonPath::PathPtr, bool> parseGetPath(String path) {
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// --get and --opt have a special syntax for getting the child values of
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// the value at the given path. These end with *, e.g.:
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// /foo/bar/*
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// foo.bar.*
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// foo.bar[*]
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bool children = false;
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if (path.endsWith("/*") || path.endsWith(".*")) {
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path = path.substr(0, path.size() - 2);
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children = true;
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} else if (path.endsWith("[*]")) {
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path = path.substr(0, path.size() - 3);
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children = true;
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}
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return make_pair(parsePath(path), children);
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}
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Maybe<ParsedArgs> parseArgs(int argc, char** argv) {
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// Skip the program name
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Deque<String> args = Deque<String>(argv + 1, argv + argc);
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ParsedArgs parsed;
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// Parse option arguments
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while (!args.empty()) {
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String const& arg = args.takeFirst();
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if (arg == "--get" || arg == "--opt") {
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// Retrieve values at a given path in the Json document
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if (!parsed.command.empty() || args.empty())
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return {};
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JsonPath::PathPtr path;
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bool children = false;
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tie(path, children) = parseGetPath(args.takeFirst());
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parsed.command = GetCommand{path, arg == "--opt", children};
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} else if (arg == "--set") {
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// Set the value at the given path in the Json document
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if (!parsed.command.empty() || args.size() < 2)
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return {};
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JsonPath::PathPtr path = parsePath(args.takeFirst());
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FormattedJson value = FormattedJson::parse(args.takeFirst());
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parsed.command = SetCommand{path, value};
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} else if (arg == "--add") {
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// Add (insert) a path to a Json document
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if (!parsed.command.empty() || args.size() < 2)
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return {};
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JsonPath::PathPtr path = parsePath(args.takeFirst());
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FormattedJson value = FormattedJson::parse(args.takeFirst());
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parsed.command = AddCommand{path, value};
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} else if (arg == "--remove") {
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// Remove a path from a Json document
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if (!parsed.command.empty() || args.empty())
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return {};
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parsed.command = RemoveCommand{parsePath(args.takeFirst())};
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} else if (arg == "--edit") {
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// Interactive bullk Json editor
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if (!parsed.command.empty() || args.empty())
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return {};
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parsed.command = EditCommand{parsePath(args.takeFirst())};
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} else if (arg == "--editor-image") {
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if (args.empty())
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return {};
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parsed.options.editorImages.append(parsePath(args.takeFirst()));
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} else if (arg == "--input") {
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// Configure the input syntax for --edit
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if (args.empty())
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return {};
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String format = args.takeFirst();
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if (format == "json" || format == "generic")
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parsed.options.editFormat = make_shared<GenericInputFormat>();
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else if (format == "css" || format == "csv")
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parsed.options.editFormat = make_shared<CommaSeparatedStrings>();
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else if (format == "string")
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parsed.options.editFormat = make_shared<StringInputFormat>();
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else
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return {};
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} else if (arg == "--array") {
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// Output multiple results as a single array
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parsed.options.output = make_shared<ArrayOutput>(false);
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} else if (arg == "--array-unique") {
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// Output multiple results as a single array, with duplicate results
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// removed
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parsed.options.output = make_shared<ArrayOutput>(true);
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} else if (arg == "--help") {
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return {};
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} else if (arg == "-j") {
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// Use command line argument as input
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parsed.inputs.append(JsonLiteralInput{args.takeFirst()});
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} else if (arg == "--find") {
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// Search for files recursively in the given directory with a given
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// suffix.
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if (args.size() < 2)
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return {};
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String directory = args.takeFirst();
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String suffix = args.takeFirst();
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parsed.inputs.append(FindInput{directory, suffix});
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} else if (arg == "-i") {
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// Update files in place rather than print to stdout
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parsed.options.inPlace = true;
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} else if (arg == "--at") {
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// Insert new object keys at the beginning or end of the document
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if (!parsed.options.insertLocation.empty() || args.size() < 1)
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return {};
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String pos = args.takeFirst();
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if (pos == "beginning" || pos == "start")
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parsed.options.insertLocation = AtBeginning{};
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else if (pos == "end")
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parsed.options.insertLocation = AtEnd{};
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else
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return {};
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} else if (arg == "--before") {
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// Insert new object keys before the given key
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if (!parsed.options.insertLocation.empty() || args.size() < 1)
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return {};
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parsed.options.insertLocation = BeforeKey{args.takeFirst()};
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} else if (arg == "--after") {
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// Insert new object keys after the given key
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if (!parsed.options.insertLocation.empty() || args.size() < 1)
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return {};
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parsed.options.insertLocation = AfterKey{args.takeFirst()};
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} else {
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if (!File::exists(arg)) {
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cerrf("File {} doesn't exist\n", arg);
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return {};
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}
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parsed.inputs.append(FileInput{arg});
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}
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}
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if (!parsed.options.output)
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parsed.options.output = make_shared<OutputOnSeparateLines>();
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bool anyFileInputs = false, anyNonFileInputs = false;
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for (Input const& input : parsed.inputs) {
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if (input.is<FindInput>() || input.is<FileInput>()) {
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anyFileInputs = true;
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} else {
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anyNonFileInputs = true;
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}
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}
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if (parsed.command.is<EditCommand>() && !anyFileInputs) {
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cerrf("Files to edit must be supplied when using --edit.\n");
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return {};
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}
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if (parsed.options.inPlace && !anyFileInputs) {
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cerrf("In-place writing (-i) can only be used with files specified on the command line.\n");
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return {};
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}
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if (parsed.options.inPlace && parsed.command.is<EditCommand>()) {
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cerrf("Interactive edit (--edit) is always in-place. Explicitly specifying -i is not needed.\n");
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return {};
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}
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if (parsed.command.is<EditCommand>() && anyNonFileInputs) {
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cerrf("Interactie edit (--edit) can only be used with file input sources.\n");
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return {};
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}
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if (parsed.options.editFormat && !parsed.command.is<EditCommand>()) {
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cerrf("--input can only be used with --edit.\n");
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return {};
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} else if (!parsed.options.editFormat && parsed.command.is<EditCommand>()) {
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parsed.options.editFormat = make_shared<GenericInputFormat>();
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}
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return parsed;
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}
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String readStdin() {
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String result;
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char buffer[1024];
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while (!feof(stdin)) {
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size_t readBytes = fread(buffer, 1, 1024, stdin);
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result.append(buffer, readBytes);
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}
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return result;
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}
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int main(int argc, char** argv) {
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try {
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Maybe<ParsedArgs> parsedArgs = parseArgs(argc, argv);
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if (!parsedArgs) {
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cerrf("Usage: {} [--get <json-path>] (-j <json> | <json-file>*)\n", argv[0]);
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cerrf(
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"Usage: {} --set <json-path> <json> [-i] [(--at (beginning|end) | --before <key> | --after <key>)] (-j "
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"<json> | <json-file>*)\n",
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argv[0]);
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cerrf(
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"Usage: {} --add <json-path> <json> [-i] [(--at (beginning|end) | --before <key> | --after <key>)] (-j "
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"<json> | <json-file>*)\n",
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argv[0]);
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cerrf(
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"Usage: {} --edit <json-path> [(--at (beginning|end) | --before <key> | --after <key>)] [--input "
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"(csv|json|string)] <json-file>+\n",
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argv[0]);
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cerrf("\n");
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cerrf("Example: {} --get /dialog/0/message guard.npctype\n", argv[0]);
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cerrf("Example: {} --get 'foo[0]' -j '{\"foo\":[0,1,2,3]}'\n", argv[0]);
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cerrf("Example: {} --edit /tags --input csv --find ../assets/ .object\n", argv[0]);
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return 1;
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}
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OutputPtr output = parsedArgs->options.output;
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bool success = true;
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if (parsedArgs->command.is<EditCommand>()) {
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return edit(argc, argv, parsedArgs->command.get<EditCommand>().path, parsedArgs->options, parsedArgs->inputs);
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} else if (parsedArgs->inputs.size() == 0) {
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// No files were provided. Reading from stdin
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success &= process(output->toFunction(), parsedArgs->command, parsedArgs->options, readStdin());
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} else {
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for (Input const& input : parsedArgs->inputs) {
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success &= process(output->toFunction(), parsedArgs->command, parsedArgs->options, input);
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}
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}
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output->flush();
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if (!success)
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return 1;
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return 0;
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} catch (JsonParsingException const& e) {
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cerrf("{}\n", e.what());
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return 1;
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} catch (JsonException const& e) {
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cerrf("{}\n", e.what());
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return 1;
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} catch (std::exception const& e) {
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cerrf("Exception caught: {}\n", outputException(e, true));
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return 1;
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}
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}
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