# Modify the git2cpp emscripten-forge recipe to build from the local repo.
# This can be called repeatedly and will produce the same output.

import argparse
from pathlib import Path
import shutil
import yaml


parser = argparse.ArgumentParser()
parser.add_argument("input_directory", type=Path)
parser.add_argument("--no-patches", action="store_true")
args = parser.parse_args()

input_dir = args.input_directory
if not input_dir.is_dir():
    quit(f"{input_dir} should exist and be a directory")

input_filename = input_dir / "recipe.yaml"
if not input_filename.is_file():
    quit(f"{input_filename} should exist and be a file")

# If backup does not exist create it.
input_backup = input_dir / "recipe_original.yaml"
backup_exists = input_backup.exists()
if not backup_exists:
    shutil.copy(input_filename, input_backup)

# Read and parse input backup file which is the original recipe file.
with open(input_backup) as f:
    recipe = yaml.safe_load(f)

build_number = recipe["build"]["number"]
print(f"  Changing build number from {build_number} to {build_number + 1}")
recipe["build"]["number"] = build_number + 1

source = recipe["source"]
if not ("sha256" in source and "url" in source):
    raise RuntimeError("Expected recipe to have both a source sha256 and url")
del source["sha256"]
del source["url"]
print("  Changing source to point to local git2cpp repo")
source["path"] = "../../../../../../"

if args.no_patches:
    print("  Deleting patches")
    del source["patches"]

# Overwrite recipe file.
with open(input_filename, "w") as f:
    yaml.dump(recipe, f)