91 lines
3.0 KiB
Zig
91 lines
3.0 KiB
Zig
const std = @import("std");
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const builtin = @import("builtin");
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const zdt = @import("zdt");
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const root = @import("root");
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const lib = @import("lib.zig");
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comptime {
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if (!builtin.is_test) {
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if (!@hasDecl(root, "DRIVER_NAME")) {
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@compileError("Missing DRIVER_NAME in module root");
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}
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}
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}
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var indent_level: usize = 0;
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pub fn indent() void {
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const new_indent_level, const has_overflown = @addWithOverflow(indent_level, 1);
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if (has_overflown == 0) {
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indent_level = new_indent_level;
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}
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}
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pub fn unindent() void {
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const new_indent_level, const has_overflown = @subWithOverflow(indent_level, 1);
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if (has_overflown == 0) {
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indent_level = new_indent_level;
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}
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}
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pub fn log(comptime level: std.log.Level, comptime scope: @Type(.enum_literal), comptime format: []const u8, args: anytype) void {
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if (lib.getLogVerboseLevel() == .None) {
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return;
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}
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const scope_name = @tagName(scope);
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const scope_prefix = comptime blk: {
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const limit = 30 - 4;
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break :blk if (scope_name.len >= limit)
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std.fmt.comptimePrint("({s}...): ", .{scope_name[0..(limit - 3)]})
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else
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std.fmt.comptimePrint("({s}): ", .{scope_name});
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};
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const prefix = std.fmt.comptimePrint("{s: <8}", .{"[" ++ comptime level.asText() ++ "] "});
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const level_color: std.Io.tty.Color = switch (level) {
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.info, .debug => .blue,
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.warn => .yellow,
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.err => .red,
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};
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std.debug.lockStdErr();
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defer std.debug.unlockStdErr();
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var stderr_buffer: [512]u8 = undefined;
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var stderr_file = std.fs.File.stderr();
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var stderr_writer = stderr_file.writer(&stderr_buffer);
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var writer: *std.Io.Writer = &stderr_writer.interface;
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var out_config = std.Io.tty.Config.detect(stderr_file);
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var timezone = zdt.Timezone.tzLocal(std.heap.page_allocator) catch zdt.Timezone.UTC;
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defer timezone.deinit();
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const now = zdt.Datetime.now(.{ .tz = &timezone }) catch return;
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out_config.setColor(writer, .magenta) catch {};
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writer.print("[StrollDriver ", .{}) catch return;
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if (!builtin.is_test) {
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out_config.setColor(writer, .cyan) catch {};
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writer.print(root.DRIVER_NAME, .{}) catch return;
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}
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out_config.setColor(writer, .yellow) catch {};
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writer.print(" {d:02}:{d:02}:{d:02}.{d:03}", .{ now.hour, now.minute, now.second, @divFloor(now.nanosecond, std.time.ns_per_ms) }) catch return;
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out_config.setColor(writer, .magenta) catch {};
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writer.print("]", .{}) catch return;
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out_config.setColor(writer, level_color) catch {};
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writer.print(prefix, .{}) catch return;
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out_config.setColor(writer, if (level == .err) .red else .green) catch {};
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writer.print("{s: >30}", .{scope_prefix}) catch return;
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out_config.setColor(writer, .reset) catch {};
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for (0..indent_level) |_| {
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writer.print("> ", .{}) catch return;
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}
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writer.print(format ++ "\n", args) catch return;
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writer.flush() catch return;
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}
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