Progress Bar Examples

basic_bar

Minimal bar with the default template {bar} {percent}%:

zig build run-basic_bar

custom_ascii_bar

ASCII fill/empty/head characters:

zig build run-custom_ascii_bar

.style = .{ .filled = "#", .empty = "-", .head = ">" },

custom_bracket_bar

Custom brackets and head:

zig build run-custom_bracket_bar

.style = .{ .left_bracket = "<", .right_bracket = ">", .head = "*" },

block_bar

Block characters with partial fills (▏▎▍▌▋▊▉) via loaders.BlockProgressBar:

zig build run-block_bar

indeterminate

Sliding segment for unknown progress via loaders.Indeterminate:

zig build run-indeterminate

indeterminate_timeout

Indeterminate bar with timeout auto-stop:

zig build run-indeterminate_timeout

manual_tick

Manual rendering — thread_mode = .none with explicit tick() calls:

zig build run-manual_tick

auto_thread

Background-thread rendering — thread_mode = .auto:

zig build run-auto_thread

external_thread

Updates from an external thread — thread_mode = .external:

zig build run-external_thread

starting_value

Start at a current value and run in direction = .decremental:

zig build run-starting_value

progress_bar_unicode

Unicode block characters with color:

zig build run-progress_bar_unicode

.style = .{ .filled = "█", .empty = "░", .head = "█" },
.color = loaders.fg(.{ .ansi4 = .cyan }),

progress_bar_countdown

Countdown bar with decremental direction:

zig build run-progress_bar_countdown

progress_bar_countdown_eta

Countdown with ETA and speed formatters:

zig build run-progress_bar_countdown_eta

.template = "{bar} {percent}% | Elapsed: {elapsed} ETA: {eta} | {speed}",
.formatters = .{
    .elapsed = formatElapsed,
    .eta = formatEta,
    .speed = formatSpeed,
},