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crash: envelope encoder

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This commit is contained in:
Mitchell Hashimoto
2024-09-05 21:24:05 -07:00
parent cc59c5d5d9
commit ee6fd80746
1 changed files with 65 additions and 0 deletions
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65
src/crash/sentry_envelope.zig
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@ -211,6 +211,29 @@ pub const Envelope = struct {
pub fn deinit(self: *Envelope) void {
self.arena.deinit();
}
/// Encode the envelope to the given writer.
pub fn encode(self: *const Envelope, writer: anytype) !void {
const json_opts: std.json.StringifyOptions = .{
// This is the default but I want to be explicit beacuse its
// VERY important for the correctness of the envelope. This is
// the only whitespace type in std.json that doesn't emit newlines.
// All JSON headers in the envelope must be on a single line.
.whitespace = .minified,
};
// Header line first
try std.json.stringify(std.json.Value{ .object = self.headers }, json_opts, writer);
try writer.writeByte('\n');
// Write each item
for (self.items, 0..) |*item, idx| {
if (idx > 0) try writer.writeByte('\n');
try std.json.stringify(std.json.Value{ .object = item.headers }, json_opts, writer);
try writer.writeByte('\n');
try writer.writeAll(item.payload);
}
}
};
/// The various item types that can be in an envelope. This is a point
@ -282,3 +305,45 @@ test "Envelope parse end in new line" {
try testing.expectEqual(@as(usize, 1), v.items.len);
try testing.expectEqual(ItemType.session, v.items[0].type);
}
test "Envelope encode empty" {
const testing = std.testing;
const alloc = testing.allocator;
var fbs = std.io.fixedBufferStream(
\\{}
);
var v = try Envelope.parse(alloc, fbs.reader());
defer v.deinit();
var output = std.ArrayList(u8).init(alloc);
defer output.deinit();
try v.encode(output.writer());
try testing.expectEqualStrings(
\\{}
, std.mem.trim(u8, output.items, "\n"));
}
test "Envelope encode session" {
const testing = std.testing;
const alloc = testing.allocator;
var fbs = std.io.fixedBufferStream(
\\{}
\\{"type":"session","length":218}
\\{"init":true,"sid":"c148cc2f-5f9f-4231-575c-2e85504d6434","status":"abnormal","errors":0,"started":"2024-08-29T02:38:57.607016Z","duration":0.000343,"attrs":{"release":"0.1.0-HEAD+d37b7d09","environment":"production"}}
);
var v = try Envelope.parse(alloc, fbs.reader());
defer v.deinit();
var output = std.ArrayList(u8).init(alloc);
defer output.deinit();
try v.encode(output.writer());
try testing.expectEqualStrings(
\\{}
\\{"type":"session","length":218}
\\{"init":true,"sid":"c148cc2f-5f9f-4231-575c-2e85504d6434","status":"abnormal","errors":0,"started":"2024-08-29T02:38:57.607016Z","duration":0.000343,"attrs":{"release":"0.1.0-HEAD+d37b7d09","environment":"production"}}
, std.mem.trim(u8, output.items, "\n"));
}