Update page.py with new ipo, use date from filename
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Midgard
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511C112F1331BBB4
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title: SVG + makefile = slide deck
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summary: "You don't need LibreOffice to prepare your presentation -- or: an introduction to makefiles"
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published: 2020-06-11
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---
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title: Get started using feeds
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summary: Don't subscribe to our email newsletter
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published: 2020-06-02
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---
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title: Get started with IRC
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summary: Pick a client, join some channels, maybe register with NickServ
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published: 2020-06-02
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---
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135
page.py
135
page.py
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@ -3,34 +3,10 @@
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import sys
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import re
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from markdown import markdown
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import strictyaml
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from ipo import read, write, map, dictmap, starstarmap, join, sort, ipo
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md_to_html = join("\n") | ipo(markdown)
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yaml_to_dict = join("\n") | ipo(strictyaml.load) | ipo(lambda x: x.data)
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@ipo
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def parted(data, regex):
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"""
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Two parts of data, delimited by the first element on which regex fullmatches.
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If a delimiter is found, the second part is an iterator over the remaining elements. Else it is None.
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"""
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first = []
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it = iter(data)
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try:
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while True:
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item = next(it)
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if re.fullmatch(regex, item):
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break
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first.append(item)
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except StopIteration:
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return (first, None)
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return (first, it)
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from strictyaml import load as load_yaml
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from pymaybe import maybe as maybe
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from functools import partial as p
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from ipo import read, write, dictmap, starstarmap, ipo, all_before, all_after
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LIST_ITEM_TEMPLATE = """
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@ -45,48 +21,32 @@ def blog_page_template():
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return fh.read()
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# FIXME what a mess
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def blog_page(file, read_body=True):
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"""
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Keep the file open if you want to be able to read the body.
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Good:
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>>> with open(…) as file:
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>>> metadata, body = blog_page(file)
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>>> [smthng(line) for line in body]
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>>> print("\n".join(hello))
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def date_from_filename(filename):
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return maybe(
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re.search(r"(?:^|/)([0-9]{4}-[0-9]{2}-[0-9]{2})[^/]+$", filename)
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).group(1).or_none()
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Bad:
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>>> with open(…) as file:
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>>> metadata, body = blog_page(file)
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>>> hello = (smthng(line) for line in body) # Lazy generator, the body wasn't read from file yet
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>>> print("\n".join(hello))
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"""
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if isinstance(file, str):
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assert not read_body, "Can't read body when giving a filename, need a file for that."
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filename = file
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file = open(filename)
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else:
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filename = None
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try:
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metadata_yaml, body_md = read(file) | parted("---+")
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def blog_page_metadata(filename):
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with open(filename) as file:
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metadata_from_file = (
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read(file=file) | p(all_before, p(re.fullmatch, "---+")) | "\n".join |
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load_yaml | (lambda x: x.data)
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).data
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metadata = {
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**(metadata_yaml | yaml_to_dict),
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}
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if not read_body:
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metadata["path"] = re.sub(r".md$", "", filename)
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return {
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**metadata_from_file,
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"path": re.sub(r".md$", "", filename),
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"published": date_from_filename(filename)
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}
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body = (
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body_md | md_to_html(extensions=["abbr", "toc", "smarty", "fenced_code", "codehilite"])
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if read_body else None
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)
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return (metadata, body)
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finally:
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if filename:
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file.close()
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def blog_page_body(filename):
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with open(filename) as file:
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return (
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read(file=file) | p(all_after, p(re.fullmatch, "---+")) | "\n".join |
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p(markdown, extensions=["abbr", "toc", "smarty", "fenced_code", "codehilite"])
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).data
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def safe_metadata(metadata):
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@ -100,21 +60,32 @@ def safe_metadata(metadata):
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}
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if sys.argv[1] == "--index":
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blog_post_list = (
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sys.argv[4:] |
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map(lambda filename: {
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**blog_page(filename, read_body=False)[0],
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}) |
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sort(key=lambda x: x["published"]) |
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map(safe_metadata) |
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map(lambda metadata: LIST_ITEM_TEMPLATE.format(**metadata)) |
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join("")
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)
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def main():
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if sys.argv[1] == "--index":
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blog_post_list = (
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ipo(sys.argv[4:]) |
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p(map, blog_page_metadata) |
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p(sorted, key=lambda x: x["published"]) |
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p(map, safe_metadata) |
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p(map, lambda metadata: LIST_ITEM_TEMPLATE.format(**metadata)) |
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"".join
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)
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with open(sys.argv[2]) as file_in, open(sys.argv[3], "w") as file_out:
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file_in.read().format(blog_posts=blog_post_list) | write(file=file_out)
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else:
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with open(sys.argv[1]) as file_in, open(sys.argv[2], "w") as file_out:
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metadata, body = blog_page(file_in)
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blog_page_template().format(**safe_metadata(metadata), body=body) | write(file=file_out)
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with open(sys.argv[2]) as file_in, open(sys.argv[3], "w") as file_out:
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print(
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file_in.read().format(blog_posts=blog_post_list),
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end="", file=file_out
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)
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else:
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metadata = safe_metadata(blog_page_metadata(sys.argv[1]))
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body = blog_page_body(sys.argv[1])
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with open(sys.argv[2], "w") as file_out:
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print(
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blog_page_template().format(**metadata, body=body),
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end="", file=file_out
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)
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if __name__ == '__main__':
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main()
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