refactor: put every filesystem write behind one module

src/main.rs

@@ -4,12 +4,15 @@ mod cli;
 mod cmd;
 mod compose;
 mod ctx;
+mod fsops;
+mod output;
 mod scripts;
 
 use anyhow::Result;
 use clap::Parser;
 
 use crate::ctx::Ctx;
+use crate::output::note;
 
 fn main() -> ExitCode {
     let args = cli::Ahab::parse();
@@ -19,8 +22,10 @@ fn main() -> ExitCode {
         dry_run: args.dry_run,
     };
 
+    // said once here rather than by each command, so every line that follows
+    // reads as the plan it is
     if ctx.dry_run {
-        cli::reject_unsupported_dry_run(&args.command);
+        note!("dry run, nothing will be changed");
     }
 
     match run(&ctx, args.command) {
@@ -41,7 +46,7 @@ fn run(ctx: &Ctx, command: cli::Commands) -> Result<ExitCode> {
                 cli::Django::Bash => scripts::django::bash(ctx),
                 cli::Django::Run { rest } => scripts::django::run(ctx, &rest),
                 cli::Django::MakeCommand { app, name } => {
-                    scripts::django::make_command(&app, &name)
+                    scripts::django::make_command(ctx, &app, &name)
                 }
                 cli::Django::Makemigrations => scripts::django::makemigrations(ctx),
                 cli::Django::Manage { rest } => scripts::django::manage(ctx, &rest),