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import os
import shutil
import datetime
import functools
from typing import Dict, List
from jinja2 import Template
from dataclasses import dataclass
import render
@dataclass(slots=True)
class Metadata(object):
title: str
author: str
date: datetime.datetime
updated: datetime.datetime
status: str
class Post(object):
template: Template
directory: str
name: str
def __init__(self, template: Template, directory: str) -> None:
self.template = template
self.directory = directory
self.name = os.path.basename(directory)
@staticmethod
def _load_raw_metadata(filename: str) -> Dict[str, str]:
data = {}
with open(filename) as f:
for line in f:
k, v = line.strip().split(": ")
data[k] = v
return data
@functools.cached_property
def metadata(self) -> Metadata:
raw = Post._load_raw_metadata(os.path.join(self.directory,
"metadata.txt"))
title = raw["Title"]
author = raw["Author"]
date = raw["Date"]
updated = raw.get("Updated", date)
status = raw.get("Status", "draft")
return Metadata(
title,
author,
datetime.datetime.fromisoformat(date),
datetime.datetime.fromisoformat(updated),
status
)
@functools.cached_property
def content(self) -> str:
md = None
for filename in os.listdir(self.directory):
if filename.endswith(".md"):
return render.to_html(os.path.join(self.directory, filename))
assert False, f"There is no markdown file in `{self.directory}`"
def generate(self, basedir: str) -> None:
postdir = os.path.basename(self.directory)
workdir = os.path.join(basedir, postdir)
os.makedirs(workdir)
for filename in os.listdir(self.directory):
source = os.path.join(self.directory, filename)
destination = os.path.join(workdir, filename)
shutil.copy(source, destination)
rendered = self.template.render(title=self.metadata.title,
author=self.metadata.author,
date=self.metadata.date,
updated=self.metadata.updated,
status=self.metadata.status,
content=self.content)
render.write_file_content(os.path.join(workdir, "index.html"),
rendered)
def remove_drafts(posts: List[Post]) -> List[Post]:
return list(filter(lambda x: x.metadata.status != "draft", posts))
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