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https://github.com/mirkobrombin/raven.git
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mirkobrombin
c345304134
Assisted-by: Claude Code:claude-opus-5-5 AI-Scope: provisioning script with pinned font package and Skia commit, README steps
127 lines
4.9 KiB
Python
127 lines
4.9 KiB
Python
#!/usr/bin/env python3
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import argparse
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import hashlib
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import os
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from pathlib import Path
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import shutil
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import subprocess
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import sys
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import urllib.request
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FONT_PACKAGE = "http://archive.ubuntu.com/ubuntu/pool/main/f/fonts-liberation/fonts-liberation_2.1.5-3build1_all.deb"
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FONT_PACKAGE_SHA256 = "47f156bc945cfc69cf2f2a0c19b8c82b67a685738d3846673462de6a73266e1b"
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FONTS = {
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"LiberationSans-Regular.ttf": "075e71be4c58beda172ecb574a799308f04c3d054c6a5b7434954d3b0f1b28d8",
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"LiberationMono-Regular.ttf": "d18235f1e874771f4eaec3ddd6ddb4db849d334bdc6930c5c2185d9344834e62",
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"LiberationSerif-Regular.ttf": "350f4ffd773cae53560c63dca3d89a5070595614fde12f772bf43feb63d81064",
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}
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SKIA_REPOSITORY = "https://skia.googlesource.com/skia.git"
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SKIA_COMMIT = "a21aae83d6e4e3da284100a30f0a5eafc443b60f"
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SKIA_ARGUMENTS = """is_official_build = true
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is_debug = false
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cc = "clang"
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cxx = "clang++"
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skia_enable_ganesh = false
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skia_enable_graphite = false
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skia_enable_pdf = false
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skia_enable_skottie = false
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skia_enable_svg = false
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skia_enable_tools = false
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skia_use_partition_alloc = false
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skia_use_gl = false
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skia_use_x11 = false
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skia_use_fontconfig = false
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skia_use_freetype = true
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skia_use_harfbuzz = false
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skia_use_icu = false
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skia_use_expat = false
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skia_use_piex = false
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skia_use_wuffs = false
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skia_use_libjpeg_turbo_decode = false
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skia_use_libjpeg_turbo_encode = false
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skia_use_libpng_decode = false
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skia_use_libpng_encode = false
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skia_use_libwebp_decode = false
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skia_use_libwebp_encode = false
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skia_use_zlib = false
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skia_use_perfetto = false
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skia_enable_fontmgr_empty = true
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skia_enable_fontmgr_custom_empty = true
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skia_use_system_freetype2 = true
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"""
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def ar_member(archive, prefix):
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at = 8
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while at + 60 <= len(archive):
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name = archive[at:at + 16].decode().strip()
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size = int(archive[at + 48:at + 58].decode())
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if name.startswith(prefix):
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return name, archive[at + 60:at + 60 + size]
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at += 60 + size + (size & 1)
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raise RuntimeError(f"the font package has no {prefix} member")
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def provision_fonts(output):
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fonts = output / "fonts"
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fonts.mkdir(exist_ok=True)
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package = output / "fonts-liberation.deb"
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if not package.exists():
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partial = package.with_suffix(".part")
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urllib.request.urlretrieve(FONT_PACKAGE, partial)
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partial.replace(package)
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data = package.read_bytes()
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if hashlib.sha256(data).hexdigest() != FONT_PACKAGE_SHA256:
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raise RuntimeError("font package checksum differs; delete it to download it again")
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name, payload = ar_member(data, "data.tar")
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tarball = output / name
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tarball.write_bytes(payload)
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subprocess.run(["tar", "-xf", tarball, "-C", fonts, "--strip-components=6", "--wildcards", "*/Liberation*-Regular.ttf"], check=True)
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tarball.unlink()
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for font, digest in FONTS.items():
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if hashlib.sha256((fonts / font).read_bytes()).hexdigest() != digest:
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raise RuntimeError(f"font checksum differs: {font}")
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return fonts
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def provision_skia(output, jobs):
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source = output / "skia"
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if not source.exists():
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subprocess.run(["git", "init", "-q", source], check=True)
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subprocess.run(["git", "-C", source, "fetch", "-q", "--depth=1", SKIA_REPOSITORY, SKIA_COMMIT], check=True)
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subprocess.run(["git", "-C", source, "checkout", "-q", "FETCH_HEAD"], check=True)
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subprocess.run([sys.executable, "tools/git-sync-deps"], cwd=source, check=True)
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subprocess.run([sys.executable, "bin/fetch-gn"], cwd=source, check=True)
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subprocess.run([sys.executable, "bin/fetch-ninja"], cwd=source, check=True)
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build = output / "cpu-fonts"
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build.mkdir(exist_ok=True)
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(build / "args.gn").write_text(SKIA_ARGUMENTS)
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subprocess.run([source / "bin/gn", "gen", build], cwd=source, check=True)
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subprocess.run([source / "third_party/ninja/ninja", "-C", build, f"-j{jobs}", "skia"], check=True)
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return source, build / "libskia.a"
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def main():
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parser = argparse.ArgumentParser(description="Provide the pinned Liberation fonts and the CPU build of Skia that text in guest windows needs")
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parser.add_argument("--output", type=Path, required=True)
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parser.add_argument("--jobs", type=int, default=2)
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parser.add_argument("--fonts-only", action="store_true", help="only the fonts, as Skia takes a long time to build")
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args = parser.parse_args()
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output = args.output.resolve()
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output.mkdir(parents=True, exist_ok=True)
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for tool in ("tar", "git", "clang", "clang++"):
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if not shutil.which(tool):
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raise RuntimeError(f"required tool is missing: {tool}")
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fonts = provision_fonts(output)
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if args.fonts_only:
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print(f"configure Raven with -DRAVEN_FONT_DIRECTORY={fonts}")
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return
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source, library = provision_skia(output, args.jobs)
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print(f"configure Raven with -DRAVEN_SKIA_SOURCE={source} -DRAVEN_SKIA_LIBRARY={library} -DRAVEN_FONT_DIRECTORY={fonts}")
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if __name__ == "__main__":
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os.umask(0o022)
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main()
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