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89 lines
3.1 KiB
Python
Executable File
89 lines
3.1 KiB
Python
Executable File
#!/usr/bin/env python3
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import fileinput
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import glob
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import os
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import re
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import sys
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from typing import List
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def validate_order(order: List[int], length: int) -> None:
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if len(order) != length:
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print("Please enter the sequence of all the conflicting files at once")
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sys.exit(1)
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for i in order:
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if i > length or i < 1 or order.count(i) > 1:
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print("Incorrect input")
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sys.exit(1)
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def renumber_migration(conflicts: List[str], order: List[int], last_correct_migration: str) -> None:
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stack: List[str] = []
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for i in order:
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if conflicts[i - 1][0:4] not in stack:
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stack.append(conflicts[i - 1][0:4])
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else:
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# Replace dependencies with the last correct migration
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file = fileinput.FileInput("zerver/migrations/" + conflicts[i - 1], inplace=True)
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for line in file:
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print(re.sub(r"[\d]+(_[a-z0-9]+)+", last_correct_migration, line), end="")
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# Rename the migration indexing at the end
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new_name = conflicts[i - 1].replace(
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conflicts[i - 1][0:4], f"{int(last_correct_migration[0:4]) + 1:04}"
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)
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os.rename("zerver/migrations/" + conflicts[i - 1], "zerver/migrations/" + new_name)
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last_correct_migration = new_name.replace(".py", "")
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def resolve_conflicts(conflicts: List[str], files_list: List[str]) -> None:
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print("Conflicting migrations:")
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for i in range(0, len(conflicts)):
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print(str(i + 1) + ". " + conflicts[i])
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order_input = input("Enter the order in which these migrations should be arranged: ")
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order = list(map(int, order_input.split()))
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validate_order(order, len(conflicts))
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last_correct_migration = conflicts[order[0] - 1]
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last_correct_migration = last_correct_migration.replace(".py", "")
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renumber_migration(conflicts, order, last_correct_migration)
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if __name__ == "__main__":
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MIGRATIONS_TO_SKIP = {"0209", "0261"}
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while True:
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conflicts: List[str] = []
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stack: List[str] = []
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files_list = [os.path.basename(path) for path in glob.glob("zerver/migrations/????_*.py")]
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file_index = [file[0:4] for file in files_list]
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for file in file_index:
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migration_number = file[0:4]
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counter = file_index.count(migration_number)
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if counter > 1 and file[0:4] not in stack:
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# When we need to backport migrations to a previous
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# release, we sometimes end up with multiple having
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# the same ID number (which isn't a problem; the
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# migrations graph structure, not the IDs, is what
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# matters).
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if migration_number not in MIGRATIONS_TO_SKIP:
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conflicts += [
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file_name
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for file_name in files_list
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if file_name.startswith(migration_number)
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]
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stack.append(migration_number)
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if len(conflicts) > 0:
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resolve_conflicts(conflicts, files_list)
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else:
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break
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print("All conflicts resolved")
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