Files
website/build.py
T

122 lines
3.5 KiB
Python
Executable File

#!/usr/bin/env python
import contextlib
import os
import shutil
from io import BufferedWriter, FileIO
import git
import magic
from compression import gzip, zstd
from jinja2 import Environment, FileSystemLoader
SOURCES_DIR = "src"
DIST_DIR = "dist"
COMPR_THRESHOLD = 512
# mostly taken from https://caddyserver.com/docs/caddyfile/directives/encode
COMPR_MIME_PREFIXES = [
"application/atom+xml",
"application/eot",
"application/font",
"application/geo+json",
"application/graphql+json",
"application/javascript",
"application/json",
"application/ld+json",
"application/manifest+json",
"application/opentype",
"application/otf",
"application/rss+xml",
"application/truetype",
"application/ttf",
"application/vnd.api+json",
"application/vnd.ms-fontobject",
"application/wasm",
"application/x-httpd-cgi",
"application/x-javascript",
"application/x-opentype",
"application/x-otf",
"application/x-perl",
"application/x-protobuf",
"application/x-ttf",
"application/xhtml+xml",
"application/xml",
"font/otf",
"font/ttf",
"image/svg+xml",
"image/vnd.microsoft.icon",
"image/x-icon",
"multipart/bag",
"multipart/mixed",
"text/",
]
def latest_git_commit_year() -> int:
return git.Repo(".").head.commit.authored_datetime.year
def build_template(env: Environment, src_path: str) -> tuple[str, int]:
rel_path = os.path.relpath(src_path, SOURCES_DIR)
dist_path = os.path.splitext(os.path.join(DIST_DIR, rel_path))[0]
template = env.get_template(rel_path)
rendered_text = template.render(copyright_year=latest_git_commit_year())
size = 0
with BufferedWriter(FileIO(dist_path, "wb")) as writer:
for line in rendered_text.splitlines():
line = line.strip()
if len(line) > 0:
line_b = line.encode()
size += len(line_b) + 1
_ = writer.write(line.encode())
_ = writer.write(b"\n")
return dist_path, size
def compress(path: str):
with open(path, "rb") as reader, open(path + ".zst", "wb") as zstd_writer, open(path + ".gz", "wb") as gzip_writer:
content = reader.read()
zstd_compressed = zstd.compress(content, level=15)
_ = zstd_writer.write(zstd_compressed)
gzip_compressed = gzip.compress(content, compresslevel=9)
_ = gzip_writer.write(gzip_compressed)
def main():
with contextlib.suppress(FileNotFoundError):
shutil.rmtree(DIST_DIR)
env = Environment(loader=FileSystemLoader(SOURCES_DIR), autoescape=True)
mime = magic.Magic(mime=True)
for root, _, files in os.walk(SOURCES_DIR):
rel_dir_path = os.path.relpath(root, SOURCES_DIR)
dist_root = os.path.join(DIST_DIR, rel_dir_path)
os.makedirs(dist_root, exist_ok=True)
for src_name in files:
src_path = os.path.join(root, src_name)
if src_name.endswith(".jinja"):
if not src_name.startswith("_"):
dist_path, size = build_template(env, src_path)
if size >= COMPR_THRESHOLD:
compress(dist_path)
else:
dist_path = os.path.join(dist_root, src_name)
_ = shutil.copy(src_path, dist_path)
if os.path.getsize(dist_path) >= COMPR_THRESHOLD:
m = mime.from_file(dist_path)
if any(m.startswith(prefix) for prefix in COMPR_MIME_PREFIXES):
compress(dist_path)
if __name__ == "__main__":
main()