zzstoatzz.io
prefect server in zig
1const std = @import("std");
2const mem = std.mem;
3
4/// Extract ID from path between prefix and suffix
5/// e.g., extractId("/flow_runs/abc/set_state", "/flow_runs/", "/set_state") -> "abc"
6pub fn extractId(target: []const u8, prefix: []const u8, suffix: []const u8) ?[]const u8 {
7 if (!mem.startsWith(u8, target, prefix)) return null;
8 if (!mem.endsWith(u8, target, suffix)) return null;
9 const start = prefix.len;
10 const end = target.len - suffix.len;
11 if (start >= end) return null;
12 return target[start..end];
13}
14
15/// Extract ID from path after prefix (handles both 32 and 36 char UUIDs)
16/// e.g., extractIdAfter("/flow_runs/abc-def", "/flow_runs/") -> "abc-def"
17pub fn extractIdAfter(target: []const u8, prefix: []const u8) ?[]const u8 {
18 if (!mem.startsWith(u8, target, prefix)) return null;
19 const rest = target[prefix.len..];
20 const id_end = mem.indexOf(u8, rest, "?") orelse rest.len;
21 if (id_end >= 36) {
22 return rest[0..36];
23 } else if (id_end >= 32) {
24 return rest[0..32];
25 }
26 return null;
27}
28
29/// Generate a random run name (e.g., "happy-panda")
30pub fn generateRunName(alloc: std.mem.Allocator) []const u8 {
31 const adjectives = [_][]const u8{ "happy", "quick", "brave", "calm", "eager" };
32 const nouns = [_][]const u8{ "panda", "tiger", "eagle", "dolphin", "falcon" };
33
34 var rng_buf: [2]u8 = undefined;
35 std.crypto.random.bytes(&rng_buf);
36
37 const adj = adjectives[rng_buf[0] % adjectives.len];
38 const noun = nouns[rng_buf[1] % nouns.len];
39
40 return std.fmt.allocPrint(alloc, "{s}-{s}", .{ adj, noun }) catch "unnamed-run";
41}