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LibGUI: Make CommonLocationsProvider::load_from_json() failable
... and additionally port it to Core::Stream. :^)
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parent
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commit
41691a7fcb
Notes:
sideshowbarker
2024-07-17 07:06:47 +09:00
Author: https://github.com/krkk Commit: https://github.com/SerenityOS/serenity/commit/41691a7fcb Pull-request: https://github.com/SerenityOS/serenity/pull/16919 Reviewed-by: https://github.com/gmta ✅
@ -10,6 +10,7 @@
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#include <AK/Vector.h>
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#include <LibCore/File.h>
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#include <LibCore/StandardPaths.h>
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#include <LibCore/Stream.h>
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#include <LibGUI/CommonLocationsProvider.h>
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#include <unistd.h>
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@ -25,8 +26,11 @@ static void initialize_if_needed()
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auto user_config = DeprecatedString::formatted("{}/CommonLocations.json", Core::StandardPaths::config_directory());
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if (Core::File::exists(user_config)) {
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CommonLocationsProvider::load_from_json(user_config);
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return;
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auto maybe_error = CommonLocationsProvider::load_from_json(user_config);
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if (!maybe_error.is_error())
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return;
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dbgln("Unable to read Common Locations file: {}", maybe_error.error());
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dbgln("Using the default set instead.");
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}
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// Fallback : If the user doesn't have custom locations, use some default ones.
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@ -36,23 +40,14 @@ static void initialize_if_needed()
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s_initialized = true;
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}
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void CommonLocationsProvider::load_from_json(DeprecatedString const& json_path)
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ErrorOr<void> CommonLocationsProvider::load_from_json(StringView json_path)
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{
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auto file = Core::File::construct(json_path);
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if (!file->open(Core::OpenMode::ReadOnly)) {
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dbgln("Unable to open {}", file->filename());
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return;
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}
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auto json = JsonValue::from_string(file->read_all());
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if (json.is_error()) {
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dbgln("Common locations file {} is not a valid JSON file.", file->filename());
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return;
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}
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if (!json.value().is_array()) {
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dbgln("Common locations file {} should contain a JSON array.", file->filename());
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return;
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}
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auto file = TRY(Core::Stream::File::open(json_path, Core::Stream::OpenMode::Read));
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auto json = JsonValue::from_string(TRY(file->read_until_eof()));
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if (json.is_error())
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return Error::from_string_literal("File is not a valid JSON");
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if (!json.value().is_array())
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return Error::from_string_literal("File must contain a JSON array");
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s_common_locations.clear();
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auto const& contents = json.value().as_array();
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@ -63,10 +58,11 @@ void CommonLocationsProvider::load_from_json(DeprecatedString const& json_path)
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auto entry = entry_value.as_object();
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auto name = entry.get("name"sv).to_deprecated_string();
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auto path = entry.get("path"sv).to_deprecated_string();
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s_common_locations.append({ name, path });
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TRY(s_common_locations.try_append({ name, path }));
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}
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s_initialized = true;
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return {};
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}
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Vector<CommonLocationsProvider::CommonLocation> const& CommonLocationsProvider::common_locations()
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@ -20,7 +20,7 @@ public:
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DeprecatedString path;
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};
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static void load_from_json(DeprecatedString const& json_path);
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static ErrorOr<void> load_from_json(StringView json_path);
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static Vector<CommonLocation> const& common_locations();
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};
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