zulip/tools/renumber-migrations

77 lines
2.6 KiB
Python
Executable File

#!/usr/bin/env python3
from six.moves import input, map, range
import glob
import os
import sys
import fileinput
import re
from typing import List
def validate_order(order, length):
# type: (List[int], int) -> None
if len(order) != length:
print("Please enter the sequence of all the conflicting files at once")
sys.exit(1)
for i in order:
if i > length or i < 1 or order.count(i) > 1:
print("Incorrect input")
sys.exit(1)
def renumber_migration(conflicts, order, last_correct_migration):
# type: (List[str], List[int], str) -> None
stack = [] # type: List[str]
for i in order:
if conflicts[i-1][0:4] not in stack:
stack.append(conflicts[i-1][0:4])
else:
# Replace dependencies with the last correct migration
file = fileinput.FileInput('zerver/migrations/' + conflicts[i-1], inplace=True)
for line in file:
print(re.sub(r'[\d]+(_[a-z0-9]+)+', last_correct_migration, line), end='')
# Rename the migration indexing at the end
new_name = conflicts[i-1].replace(conflicts[i-1][0:4],
'%04d' % (int(last_correct_migration[0:4]) + 1,))
os.rename('zerver/migrations/' + conflicts[i-1], 'zerver/migrations/' + new_name)
last_correct_migration = new_name.replace('.py', '')
def resolve_conflicts(conflicts, files_list):
# type: (List[str], List[str]) -> None
print("Conflicting migrations:")
for i in range(0, len(conflicts)):
print(str(i+1) + '. ' + conflicts[i])
order_input = input("Enter the order in which these migrations should be arranged: ")
order = list(map(int, order_input.split()))
validate_order(order, len(conflicts))
last_correct_migration = conflicts[order[0] - 1]
last_correct_migration = last_correct_migration.replace('.py', '')
renumber_migration(conflicts, order, last_correct_migration)
if __name__ == '__main__':
while True:
conflicts = [] # type: List[str]
stack = [] # type: List[str]
files_list = [os.path.basename(path) for path in glob.glob("zerver/migrations/????_*.py")]
file_index = [file[0:4] for file in files_list]
for file in file_index:
counter = file_index.count(file[0:4])
if counter > 1 and file[0:4] not in stack:
conflicts += [file_name for file_name in files_list if file[0:4] in file_name]
stack.append(file[0:4])
if len(conflicts) > 0:
resolve_conflicts(conflicts, files_list)
else:
break
print("All conflicts resolved")