feat!: respect COMPOSE_FILE env and remove docker command

Read COMPOSE_FILE from env and use it if it is set. Default is still
docker/local/docker-compose.yaml.

BREAKING CHANGE: Removed docker subcommand. Added deprecation notice to
compose subcommand.

src/command_builder.rs

@@ -1,6 +1,7 @@
 use anyhow::{anyhow, Context, Result};
 use std::{
     collections::VecDeque,
+    env,
     ffi::OsStr,
     fmt::Display,
     fs::{File, OpenOptions},
@@ -27,10 +28,15 @@ impl From<&String> for Args {
 
 impl From<&[String]> for Args {
     fn from(value: &[String]) -> Self {
-        Self(Vec::from_iter(value.iter().map(|x| x.to_string())))
+        Self(value.to_vec())
     }
 }
 
+fn get_compose_file() -> Result<String> {
+    let cf = env::var("COMPOSE_FILE")?;
+    Ok(cf)
+}
+
 #[derive(Default)]
 pub struct CommandBuilder {
     args: Vec<String>,
@@ -52,7 +58,9 @@ impl CommandBuilder {
     }
 
     pub fn docker_compose() -> Self {
-        Self::default().args("docker compose -f docker/local/docker-compose.yaml")
+        let cf =
+            get_compose_file().unwrap_or_else(|_| "docker/local/docker-compose.yaml".to_string());
+        Self::default().args("docker compose -f").args(&cf)
     }
 
     pub fn args<T>(mut self, args: T) -> Self
@@ -64,7 +72,7 @@ impl CommandBuilder {
     }
 
     pub fn build(self) -> Result<Command> {
-        debug_eprintln!("-----\n{self}\n-----");
+        debug_eprintln!("running `{self}`");
 
         let (first, rest) = self.args.split_first().context("empty args")?;
         let mut command = Command::new(first);