codinit-backend/scripts/check_prettier_matches_dprint.py at main · codinit-dev/codinit-backend

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codinit-backend/scripts/check_prettier_matches_dprint.py at main · codinit-dev/codinit-backend · GitHub

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#!/usr/bin/python3

"""

Confirm that .prettierrc settings match dprint.

Editors often use prettier, our `just format` command uses dprint.

"""

import json

import os

from difflib import SequenceMatcher

from pprint import pprint

from subprocess import check_output

script_dir = os.path.dirname(os.path.abspath(__file__))

def strip_comments(s: str) -> str:

return "\n".join(line for line in s.splitlines() if not is_comment(line))

def is_comment(line: str) -> bool:

trimmed = line.strip()

return trimmed.startswith("#") or trimmed.startswith("//")

def js_to_json(filename: str) -> str:

return check_output(

["node"],

input=f"console.log(JSON.stringify(require({repr(filename)})));",

encoding="utf8",

cwd=script_dir,

)

dprint = json.loads(

strip_comments(open(os.path.join(script_dir, "../dprint.json")).read())

)

prettierrc = json.loads(js_to_json("../.prettierrc.js"))

prettierignore = strip_comments(

open(os.path.join(script_dir, "../.prettierignore")).read()

).splitlines()

if dprint["prettier"] != prettierrc:

pprint(dprint["prettier"])

pprint(prettierrc)

raise Exception(".prettierrc and dprint.json settings don't match!")

if dprint["excludes"] != prettierignore:

for tag, i, j, k, l in SequenceMatcher(

None, dprint["excludes"], prettierignore

).get_opcodes():

if tag == "equal":

print("both have", dprint["excludes"][i:j])

if tag in ("delete", "replace"):

print(" dprint excludes has", dprint["excludes"][i:j])

if tag in ("insert", "replace"):

print(" .prettierrc has", prettierignore[k:l])

raise Exception(".prettierignore and dprint.json settings don't match!")

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