compat

compat/.gitignore

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+/target
+**/*.rs.bk
+.DS_Store
+.vscode

compat/Cargo.toml

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+[package]
+name = "compat"
+version = "0.1.0"
+authors = ["Aiden McClelland <me@drbonez.dev>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+clap = "2.33.3"
+serde = { version="1.0.118", features=["derive", "rc"] }
+serde_yaml = "0.8.17"
+embassy-os = { path="../appmgr", default-features=false }

compat/Dockerfile

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+FROM alpine:latest
+
+ADD ./target/aarch64-unknown-linux-musl/release/compat /usr/local/bin/compat
+
+ENTRYPOINT ["compat"]

compat/src/main.rs

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+use std::{fs::File, io::stdout, path::Path};
+
+use clap::{App, Arg, SubCommand};
+use embassy::config::action::{ConfigRes, SetResult};
+
+fn main() {
+    let app = App::new("compat").subcommand(
+        SubCommand::with_name("config").subcommand(
+            SubCommand::with_name("get")
+                .arg(
+                    Arg::with_name("mountpoint")
+                        .help("The `mount` field from manifest.yaml")
+                        .required(true),
+                )
+                .arg(
+                    Arg::with_name("spec")
+                        .help("The path to the config spec in the container")
+                        .required(true),
+                ),
+        ),
+    );
+    let matches = app.get_matches();
+    match matches.subcommand() {
+        ("config", Some(sub_m)) => match sub_m.subcommand() {
+            ("get", Some(sub_m)) => {
+                let cfg_path =
+                    Path::new(sub_m.value_of("mountpoint").unwrap()).join("start9/config.yaml");
+                let cfg = if cfg_path.exists() {
+                    Some(serde_yaml::from_reader(File::open(cfg_path).unwrap()).unwrap())
+                } else {
+                    None
+                };
+                let spec_path = Path::new(sub_m.value_of("spec").unwrap());
+                let spec = serde_yaml::from_reader(File::open(spec_path).unwrap()).unwrap();
+                serde_yaml::to_writer(stdout(), &ConfigRes { config: cfg, spec }).unwrap();
+            }
+            (subcmd, _) => {
+                panic!("unknown subcommand: {}", subcmd);
+            }
+        },
+        (subcmd, _) => {
+            panic!("unknown subcommand: {}", subcmd);
+        }
+    }
+}