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from pathlib import Path
from typing import Optional
import shutil
import jinja2
from dots_manager.config import Constants, Environment
from dots_manager.utils import is_some, parallelize
def is_template(path: Path) -> bool:
return path.suffix == Constants.template_extension
def find_templates_under(destination: Path) -> list[Path]:
return [
t
for t in destination.glob("**/*" + Constants.template_extension)
if t.is_file() and is_template(t)
]
def render_template_to(
template: Path, destination: Path, env: Environment
) -> Optional[Path]:
env.logger.debug(f"rendering template {template} to {destination} ✧*ฺ")
if not is_template(template):
env.logger.error(f"{template} is not a valid template D:")
return None
jinja_env = jinja2.Environment(
loader=jinja2.BaseLoader(),
undefined=jinja2.StrictUndefined,
trim_blocks=True,
lstrip_blocks=True,
)
rendered = render(template, jinja_env, env)
if not rendered:
env.logger.error(f"failed to render template {template}")
return None
destination.write_text(rendered)
destination.chmod(template.stat().st_mode)
return destination
def render(
source: Path, jinja_env: jinja2.Environment, env: Environment
) -> Optional[str]:
try:
env.logger.debug(f"rendering template {source} <_mood.happy>")
return jinja_env.from_string(source.read_text()).render(**env.context)
except Exception as e:
env.logger.error(f"couldn’t render {source}: {e} <_mood.sad>")
return None
def compile_dotfiles(source: Path, output: Path, env: Environment) -> bool:
env.logger.info(f"compiling {source} to {output} <_mood.anxious>")
output.mkdir(exist_ok=True, parents=True)
shutil.copytree(source, output, dirs_exist_ok=True)
tasks = parallelize(
lambda template: is_some(
render_template_to,
template,
template.with_suffix(""),
env,
)[0]
and (template.unlink() is None),
find_templates_under(output),
env.logger,
)
return all(tasks)
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