src/template.rs


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use handlebars::Handlebars;

use crate::{task::*, util::error::*};

fn escape(s: &str) -> String {
	format!("'{}'", s.replace("'", "'\\''"))
}

#[derive(Debug)]
pub struct TemplateEngine(Handlebars<'static>);

impl TemplateEngine {
	pub fn new() -> Self {
		let mut tpl = Handlebars::new();

		tpl.set_strict_mode(true);
		tpl.register_escape_fn(escape);

		TemplateEngine(tpl)
	}

	pub fn eval(&self, task: &TaskDef, args: &TaskArgs) -> Result<String> {
		self.0
			.render_template(&task.action.run, args)
			.map_err(Error::new)
	}
}