Some scripts I used when converting Cause Prioritization Wiki URLs from spaces to underscores

check.py

#!/usr/bin/env python3

# Run this like: ls -1 | ./check.py

import sys

ignored = [
        "Free cities.page",
        "UI Design.page",
        "Artificial intelligence.page",
        "Oxford Prioritization Project.page",
        "Front Page.page",
        "Keyhole solutions.page",
        "Ethics offset.page",
        "Importance, tractability, neglectedness.page",
        "Cause prioritization websites.page",
        "Cause prioritization people.page",
        "Drug policy reform.page",
        "@Front Page.page",
        ]

space_files = set()
underscore_files = set()

total = 0
total_need_change = 0
changed = 0

for line in sys.stdin:
    filename = line.strip()
    if filename.endswith(".page"):
        total += 1
        if " " in filename and filename not in ignored:
            total_need_change += 1
            space_files.add(filename)
        elif "_" in filename and filename not in ignored:
            changed += 1
            underscore_files.add(filename)

not_changed = total_need_change - changed

for filename in sorted(space_files):
    if filename.replace(" ", "_") not in underscore_files:
        print(filename)
    else:
        # print("GOOD", filename)
        pass

print(("\nSUMMARY: {} total files, {} needed to be " +
      "changed (out of which\n         {} changed and {} still need to " +
      "be changed.)").format(total, total_need_change, changed, not_changed))

rename.py

#!/usr/bin/env python3

import sys
import subprocess
import shlex

filename = sys.argv[1]
renamed = filename.replace(" ", "_")

# subprocess.run(["git", "mv", shlex.quote(filename), renamed])
subprocess.run(["git", "mv", filename, renamed])
subprocess.run(["git", "commit", "-m", "rename"])

with open(filename, "w") as f:
    f.write("---\n")
    f.write("redirect: " + renamed[:-len(".page")] + "\n")
    f.write("...\n")

newcontents = []
line_num = 1
with open(renamed, "r") as f:
    for line in f:
        if line_num == 2 and not line.startswith("title:"):
            newcontents.append("title: " + filename[:-len(".page")] + "\n")
        newcontents.append(line)
        line_num += 1

with open(renamed, "w") as f:
    for line in newcontents:
        f.write(line)

subprocess.run(["git", "add", filename])
subprocess.run(["git", "add", renamed])
subprocess.run(["git", "commit", "-m", "add redirect"])

subprocess.run(["git", "status"])
subprocess.run(["cat", filename])
subprocess.run(["head", "-n5", renamed])