tri
3d1011e17c
- Annotate functions in fastfetch, spectacle and theme scripts - Add Color and ColorFn type aliases in theme/build.py - Annotate empty collections and silence optionxform assignment errors
58 lines
2.0 KiB
Python
Executable File
58 lines
2.0 KiB
Python
Executable File
#!/usr/bin/env python3
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"""Encode albedo.png as kitty graphics escapes for fastfetch's "raw" logo.
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fastfetch's "kitty-direct" logo sends the terminal a file path (t=f). Konsole
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only accepts inline data (t=d) and answers t=f with ENOTSUPPORTED, which lands
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on the prompt as typed input. These files carry the PNG inline instead, with
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q=2 so the terminal never answers at all.
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.config/fastfetch/albedo-konsole.kitty pre-scaled for Konsole
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Konsole stretches the image to the c x r cell box with nearest-neighbour
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scaling, at logical (not device) pixel size, so a 512px source turns grainy.
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The Konsole copy is resized with Lanczos to exactly that box, which leaves
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Konsole nothing to scale. Rerun after changing the image, the logo size or the
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Konsole font.
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"""
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import base64
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import subprocess
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import tempfile
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from pathlib import Path
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PKG = Path(__file__).resolve().parent
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DIR = PKG / ".config/fastfetch"
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SOURCE = DIR / "albedo.png"
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# Logo size in cells; keep in sync with "width" and "height" in config.jsonc.
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COLS, ROWS = 20, 10
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# Konsole's cell size in logical pixels for JetBrainsMono Nerd Font 10pt
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# (QFontMetrics: average advance of Konsole's REPCHAR, and height()).
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KONSOLE_CELL = 8, 17
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def encode(png: bytes, dst: Path) -> None:
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data = base64.b64encode(png)
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chunks = [data[i : i + 4096] for i in range(0, len(data), 4096)]
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out = bytearray()
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for n, chunk in enumerate(chunks):
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more = int(n < len(chunks) - 1)
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if n == 0:
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keys = b"a=T,f=100,t=d,c=%d,r=%d,q=2,m=%d" % (COLS, ROWS, more)
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else:
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keys = b"m=%d" % more
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out += b"\x1b_G" + keys + b";" + chunk + b"\x1b\\"
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dst.write_bytes(out)
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def resize(width: int, height: int) -> bytes:
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with tempfile.TemporaryDirectory() as tmp:
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out = Path(tmp) / "out.png"
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subprocess.run(
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["vipsthumbnail", SOURCE, "--size", f"{width}x{height}!", "-o", out],
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check=True,
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)
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return out.read_bytes()
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encode(resize(COLS * KONSOLE_CELL[0], ROWS * KONSOLE_CELL[1]), DIR / "albedo-konsole.kitty")
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