Add radar scope, splash screen, Star Wars easter egg, and harden TUI
New features: - P1 green phosphor radar scope widget on Track screen with LUT-optimized rendering - Splash screen with pre-baked ANSI half-block art from 16colo.rs/Mistigris - Star Wars ASCII animation via telnet (ctrl+w) with IPv6 happy eyeballs and offline fallback - Dark Side / New Hope toast notifications on theme toggle - Kitty terminal detection with cat emoji on splash Robustness (from Apollo code review): - Circuit breaker in track loop after 10 consecutive errors - Input validation for frequency, symbol rate, step size across scan/spectrum/track - Consolidated sys.path manipulation into __init__.py - Radar scope pre-computes dist/angle LUT per pixel on resize Cleanup: - Removed unused imports across lband, monitor, scan, signal_gauge - Moved Pillow/textual-image to optional dev deps (splash uses pre-baked ANSI) - Added 41-test pytest suite covering telnet IAC parsing, radar geometry, splash assets
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33 changed files with 2076 additions and 86 deletions
99
tui/scripts/fetch_art.py
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tui/scripts/fetch_art.py
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#!/usr/bin/env python3
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"""Download splash art from 16colo.rs for SkyWalker-1 TUI.
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Fetches pixel/teletext art from Mistigris packs on 16colo.rs and saves
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them as bundled assets for the splash screen.
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Usage:
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python scripts/fetch_art.py
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"""
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import urllib.request
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import sys
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from pathlib import Path
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ASSETS_DIR = Path(__file__).resolve().parent.parent / "src" / "skywalker_tui" / "assets" / "splash"
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ART_SOURCES = [
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{
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"url": "https://16colo.rs/pack/mist0717/raw/ILLARTERATE-SETI-100_02_SATELLITE.PNG",
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"filename": "seti-satellite.png",
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"artist": "Illarterate",
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"title": "S.E.T.I. Satellite",
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"pack": "mist0717",
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},
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{
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"url": "https://16colo.rs/pack/mist1119/raw/192.168.10.13-DIALTONE.JPG",
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"filename": "dialtone.jpg",
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"artist": "192.168.10.13",
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"title": "Dialtone",
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"pack": "mist1119",
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},
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{
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"url": "https://16colo.rs/pack/mist0523/raw/BLIPPYPIXEL-SO_FAR_AWAY.GIF",
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"filename": "so-far-away.gif",
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"artist": "Blippypixel",
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"title": "So Far Away",
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"pack": "mist0523",
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},
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{
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"url": "https://16colo.rs/pack/mist0121/raw/JELLICA_JAKE-PRODIGY.JPG",
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"filename": "prodigy-out-of-space.jpg",
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"artist": "Jellica Jake",
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"title": "Prodigy / Out of Space",
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"pack": "mist0121",
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},
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{
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"url": "https://16colo.rs/pack/mist1120/raw/BLIPPYPIXEL-SPACE_DOCKER.GIF",
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"filename": "space-docker.gif",
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"artist": "Blippypixel",
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"title": "Space Docker",
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"pack": "mist1120",
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},
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]
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def fetch_all():
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ASSETS_DIR.mkdir(parents=True, exist_ok=True)
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downloaded = 0
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for art in ART_SOURCES:
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dest = ASSETS_DIR / art["filename"]
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if dest.exists():
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print(f" exists: {art['filename']}", file=sys.stderr)
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downloaded += 1
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continue
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print(f" fetch: {art['filename']} from {art['url']}", file=sys.stderr)
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try:
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req = urllib.request.Request(art["url"], headers={"User-Agent": "SkyWalker-1-TUI/0.1"})
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with urllib.request.urlopen(req, timeout=30) as resp:
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data = resp.read()
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dest.write_bytes(data)
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print(f" {len(data):,} bytes -> {dest.name}", file=sys.stderr)
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downloaded += 1
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except Exception as e:
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print(f" FAIL: {art['filename']}: {e}", file=sys.stderr)
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# Write CREDITS.md
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credits = ASSETS_DIR / "CREDITS.md"
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lines = ["# Splash Art Credits\n", ""]
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lines.append("All artwork sourced from [16colo.rs](https://16colo.rs) /")
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lines.append("[Mistigris](https://mistigris.com) art packs.\n")
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lines.append("| File | Artist | Title | Pack |")
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lines.append("|------|--------|-------|------|")
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for art in ART_SOURCES:
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pack_url = f"https://16colo.rs/pack/{art['pack']}"
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lines.append(
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f"| `{art['filename']}` | {art['artist']} "
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f"| {art['title']} | [{art['pack']}]({pack_url}) |"
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)
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lines.append("")
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credits.write_text("\n".join(lines))
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print(f"\n {downloaded}/{len(ART_SOURCES)} images downloaded to {ASSETS_DIR}", file=sys.stderr)
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return downloaded
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if __name__ == "__main__":
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fetch_all()
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124
tui/scripts/prebake_splash.py
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tui/scripts/prebake_splash.py
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#!/usr/bin/env python3
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"""Pre-render splash art as ANSI half-block text for instant display.
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Converts source images (PNG/JPG/GIF) into .ans files using Unicode half-block
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characters with 24-bit ANSI color. This eliminates the runtime Pillow decode
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and textual-image protocol detection, making splash display instant.
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Each terminal cell renders two vertical pixels using the upper-half-block
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character (U+2580 '▀') with fg=top_pixel, bg=bottom_pixel for 2x vertical
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resolution.
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Usage:
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python scripts/prebake_splash.py [--width 80]
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"""
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import argparse
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from pathlib import Path
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from PIL import Image
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ASSETS_DIR = Path(__file__).resolve().parent.parent / "src" / "skywalker_tui" / "assets" / "splash"
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# Source images to pre-bake
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SOURCE_FILES = [
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"seti-satellite.png",
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"dialtone.jpg",
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"so-far-away.gif",
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"prodigy-out-of-space.jpg",
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"space-docker.gif",
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]
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def image_to_ansi(img_path: Path, width: int = 80) -> str:
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"""Convert an image to ANSI half-block art.
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Uses ▀ (upper half block) with fg=top pixel, bg=bottom pixel to get
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2x vertical resolution. Emits 24-bit ANSI color escape sequences,
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optimized to only change fg/bg when the color actually changes.
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"""
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img = Image.open(img_path)
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# Use first frame for animated GIFs
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if hasattr(img, "n_frames") and img.n_frames > 1:
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img.seek(0)
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img = img.convert("RGBA")
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# Resize maintaining aspect ratio, height rounded to even for half-blocks
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ratio = img.height / img.width
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pixel_height = int(width * ratio)
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pixel_height += pixel_height % 2 # ensure even
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img = img.resize((width, pixel_height), Image.LANCZOS)
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lines = []
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for y in range(0, pixel_height, 2):
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chunks = []
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prev_fg = None
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prev_bg = None
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for x in range(width):
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tr, tg, tb, ta = img.getpixel((x, y))
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if y + 1 < pixel_height:
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br, bg, bb, ba = img.getpixel((x, y + 1))
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else:
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br, bg, bb, ba = 0, 0, 0, 0
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# Treat near-transparent pixels as black
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if ta < 128:
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tr, tg, tb = 0, 0, 0
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if ba < 128:
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br, bg, bb = 0, 0, 0
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fg = (tr, tg, tb)
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bk = (br, bg, bb)
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# Only emit escape codes when color changes
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codes = []
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if fg != prev_fg:
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codes.append(f"\033[38;2;{fg[0]};{fg[1]};{fg[2]}m")
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prev_fg = fg
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if bk != prev_bg:
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codes.append(f"\033[48;2;{bk[0]};{bk[1]};{bk[2]}m")
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prev_bg = bk
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chunks.append("".join(codes) + "\u2580")
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lines.append("".join(chunks) + "\033[0m")
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return "\n".join(lines)
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def main():
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parser = argparse.ArgumentParser(description="Pre-bake splash art as ANSI half-block text")
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parser.add_argument("--width", type=int, default=80, help="Output width in columns (default: 80)")
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args = parser.parse_args()
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if not ASSETS_DIR.exists():
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print(f"Assets directory not found: {ASSETS_DIR}")
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return
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for filename in SOURCE_FILES:
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src = ASSETS_DIR / filename
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if not src.exists():
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print(f" SKIP {filename} (not found)")
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continue
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stem = src.stem
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dst = ASSETS_DIR / f"{stem}.ans"
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print(f" BAKE {filename} -> {stem}.ans ({args.width} cols) ...", end=" ", flush=True)
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ansi_text = image_to_ansi(src, width=args.width)
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dst.write_text(ansi_text)
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# Stats
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src_kb = src.stat().st_size / 1024
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dst_kb = dst.stat().st_size / 1024
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line_count = ansi_text.count("\n") + 1
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print(f"{src_kb:.1f}KB -> {dst_kb:.1f}KB ({line_count} lines)")
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print("\nDone. Pre-baked .ans files are ready for instant splash display.")
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if __name__ == "__main__":
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main()
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