add-to-custom-scenery.py

#!/usr/bin/env python3
import os
import tempfile
import shutil
import difflib
from pathlib import Path

# Define source and destination paths
source = Path(__file__).resolve().parent
dest = Path('/opt/X-Plane 12/Custom Scenery')
spack = dest / 'scenery_packs.ini'

print('Taking Ortho from directory', source)
print('Installing into', dest)

def eligible(tile):
    skipme = tile / '.skipme'
    if skipme.exists():
        print('Skipping pack because skipme file exists:', skipme)
        return False
    return True

# Find directories (tiles) in the source directory
tiles = [tile for tile in source.iterdir() if tile.is_dir() and eligible(tile)]
scenery_packs = [f'SCENERY_PACK Custom Scenery/{tile.name}/\n' for tile in tiles]

# Iterate over the tiles and append scenery pack info
for tile in tiles:
    dest_tile = dest / tile.name
    if not dest_tile.exists():
        os.symlink(tile, dest_tile)

# Create a temporary file
with tempfile.NamedTemporaryFile(mode='w+') as tmpf:
    # Write the contents of scenery_packs.ini excluding lines containing 'zOrtho'
    with spack.open('r') as spack_file:
        for line in spack_file:
            if line in scenery_packs:
                scenery_packs.remove(line)
            tmpf.write(line)

    # Iterate over the tiles and append scenery pack info
    for sp_line in scenery_packs:
        tmpf.write(sp_line)

    tmpf.seek(0)
    with spack.open('r') as spack_file:
        spack_lines = spack_file.readlines()
        tmpf_lines = tmpf.readlines()

        diff = difflib.unified_diff(spack_lines, tmpf_lines, fromfile=str(spack), tofile=tmpf.name)
        for line in diff:
            print(line, end='')

    # Backup the original `scenery_packs.ini` and replace it with the temporary file (equivalent to `cp -b "${TMPF}" "${SPACK}"`)
    backup_path = spack.with_suffix('.bak')
    shutil.copy2(spack, backup_path)  # Backup original file
    shutil.copy2(tmpf.name, spack)  # Replace original with the modified file