feat: Initial rewrite of python render tool

src/main.rs

@@ -0,0 +1,51 @@
+mod cli;
+
+use clap::{CommandFactory, Parser};
+use clap_complete::{Shell, generate as generate_complete};
+use crete::cluster::get_clusters;
+use crete::environment::PathEnvironment;
+use crete::set_repo_path;
+use minijinja::context;
+
+use crate::cli::{Cli, Commands, GlobalOpts};
+
+fn generate(opts: &GlobalOpts) {
+    set_repo_path(&opts.repo);
+
+    let patch_env = PathEnvironment::new_patches();
+    let clusters = get_clusters(&patch_env);
+
+    let path = opts.repo.join("rendered");
+    if path.exists() {
+        std::fs::remove_dir_all(&path).unwrap();
+    }
+    std::fs::create_dir(&path).unwrap();
+
+    let template_env = PathEnvironment::new_templates(&opts.repo);
+    for template_name in &template_env {
+        let template = template_env.get_template(&template_name).unwrap();
+
+        let content = template
+            .render(context! {
+                clusters,
+                root => opts.repo
+            })
+            .unwrap();
+
+        std::fs::write(path.join(template_name), content).unwrap();
+    }
+}
+
+fn main() {
+    let cli = Cli::parse();
+
+    match cli.command {
+        Commands::Generate => generate(&cli.global_opts),
+        Commands::ShellCompletions => generate_complete(
+            Shell::from_env().unwrap_or(Shell::Bash),
+            &mut Cli::command(),
+            "crete",
+            &mut std::io::stdout(),
+        ),
+    }
+}