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#!/usr/bin/env python3
import yaml, os, re, sys
def update_file(fname, start_marker, end_marker, replacement):
content = list(open(fname, 'r').readlines())
startline = content.index(start_marker)
endline = content.index(end_marker)
assert endline > startline
content[startline+1:endline] = replacement
with open(fname+".tmp", 'w') as f:
f.write("".join(content))
os.rename(fname+".tmp", fname)
BOOK_START = "# BEGIN AUTO-GENERATED REDIRECTS\n"
BOOK_END = "# END AUTO-GENERATED REDIRECTS\n"
HTML_MARKER_START = "<!-- BEGIN AUTO-GENERATED REDIRECTS -->\n"
HTML_MARKER_END = "<!-- END AUTO-GENERATED REDIRECTS -->\n"
def book_redirects(rs, spec_dir):
lines = []
for kwd, info in rs.items():
if os.path.isdir(os.path.join(spec_dir, kwd)):
assert os.path.isfile(os.path.join(spec_dir, kwd, "index.md"))
assert info.get('implicit')
continue
elif any((os.path.isfile(os.path.join(spec_dir, kwd) + ext)) for ext in [".txt", ".md"]):
assert info.get('implicit')
continue
else:
assert not info.get('implicit')
source = kwd + ".html"
target = info['target']
lines.append(
f'"/{source}" = "{target}"\n'
)
return "".join(lines)
def permalinks_redirects(rs):
lines = [ "<dl>\n" ]
for kwd, info in rs.items():
target = info['target']
desc = info['description']
lines.append(f'<dt><code>/{kwd}</code></dt>\n')
lines.append(f'<dd><a href="{target}"><code>{target}</code> ({desc})</a></dt>\n')
lines.append("</dl>\n")
return "".join(lines)
def proposal_redirects(proposals_dir):
lines = []
for fname in os.listdir(proposals_dir):
m = re.match(r'^(\d+)-.*\.(?:md|txt)$', fname)
if m:
source = m.group(1) + ".html"
target, targetext = os.path.splitext(fname)
if targetext == '.md':
targetext = ".html"
lines.append(f'"/{source}" = "./{target}{targetext}"\n')
lines.sort()
return "".join(lines)
if __name__ == '__main__':
toplevel = os.path.join(os.path.dirname(sys.argv[0]), "..")
spec_book_fname = os.path.join(toplevel, "mdbook", "spec", "book.toml")
spec_dir = os.path.join(toplevel, "spec")
permalinks_fname = os.path.join(toplevel, "spec", "permalinks.md")
prop_dir = os.path.join(toplevel, "proposals")
prop_book_fname = os.path.join(toplevel, "mdbook", "proposals", "book.toml")
yaml_fname = os.path.join(toplevel, "mdbook", "spec", "spec-redirects.yaml")
rs = yaml.load(open(yaml_fname), yaml.Loader)['redirects']
update_file(spec_book_fname, BOOK_START, BOOK_END, book_redirects(rs, spec_dir))
update_file(permalinks_fname, HTML_MARKER_START, HTML_MARKER_END, permalinks_redirects(rs))
update_file(prop_book_fname, BOOK_START, BOOK_END, proposal_redirects(prop_dir))
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