feat(zlog): colored level text and styled timestamps and scopes

README.md

@@ -66,24 +66,24 @@ pub fn main() void {
 This will result in the following output:
 
 ```
-[2024-08-28 22:22] debug(main): Debug message 42
+[2025-02-24 13:00:08] [debug](main): Debug message 42
-[2024-08-28 22:22] info(main): Info message { 1, 2, 3, 4 }
+[2025-02-24 13:00:08] [info](main): Info message { 1, 2, 3, 4 }
-[2024-08-28 22:22] info(main): Info message "This is a test"
+[2025-02-24 13:00:08] [info](main): Info message "This is a test"
-[2024-08-28 22:22] warning(main): Warning message main.Options = enum {
+[2025-02-24 13:00:08] [warning](main): Warning message main.Options = enum {
+    a,
+    b,
+    c,
+} = a
+[2025-02-24 13:00:08] [error](main): Error message main.Struct = struct {
+    .a = 42,
+    .b = true,
+    .c = []u16: { 1, 2, 3, 4, 5 },
+    .d = { 115, 116, 114, 105, 110, 103 },
+    .e = main.Options = enum {
         a,
         b,
         c,
-} = a
+    } = b,
-[2024-08-28 22:22] error(main): Error message main.Struct = struct {
-        .a = 42,
-        .b = true,
-        .c = []u16: { 1, 2, 3, 4, 5 },
-        .d = { 115, 116, 114, 105, 110, 103 },
-        .e = main.Options = enum {
-                a,
-                b,
-                c,
-        } = b,
 }
 ```
 

src/zlog.zig

@@ -16,8 +16,15 @@ fn logFn(
     // TODO: provide build time configuration to allow tweaking corresponding output
     // - change output file for writing messages to (default `stderr`)
     // write into own file for each level?
-    const level_txt = comptime message_level.asText();
+
-    const prefix = if (scope == .default) ": " else "(" ++ @tagName(scope) ++ "): ";
+    // TODO: make the level text colored according to the level!
+    const prefix = if (scope == .default) ": " else "(\x1b[2m" ++ @tagName(scope) ++ "\x1b[0m): ";
+    const level_txt = switch (comptime message_level) {
+        .err => "[\x1b[38;5;9merror\x1b[0m]",
+        .warn => "[\x1b[38;5;11mwarning\x1b[0m]",
+        .info => "[\x1b[38;5;10minfo\x1b[0m]",
+        .debug => "[\x1b[38;5;12mdebug\x1b[0m]",
+    };
     const fmt = level_txt ++ prefix ++ format ++ "\n";
     if (comptime build_options.file.len != 0) {
         // TODO: handle errors accordingly (i.e. panic?)
@@ -56,7 +63,7 @@ inline fn log_writing(writer: anytype, comptime fmt: []const u8, args: anytype)
 }
 
 inline fn log_timestamp(writer: anytype) void {
-    writer.print("[{any}] ", .{ztime.DateTime.now()}) catch return;
+    writer.print("[\x1b[1m{any}\x1b[0m] ", .{ztime.DateTime.now()}) catch return;
 }
 
 pub fn pretty_format(object: anytype, comptime fmt: []const u8, options: std.fmt.FormatOptions, writer: anytype) !void {