improves the build script with SOURCE_DIR env var, adds Dockerfile …

…and example docker-compose.yml

tools/od_ref_bot/.dockerignore

@@ -0,0 +1 @@
+src/content.rs

tools/od_ref_bot/Dockerfile

@@ -0,0 +1,18 @@
+# syntax=docker/dockerfile:labs
+
+FROM rust:1.82 AS builder
+
+WORKDIR /usr/src/app
+COPY src/ src/
+COPY build.rs build.rs
+COPY Cargo.toml Cargo.toml
+
+ADD https://github.com/OpenDreamProject/od-dm-reference.git#main /usr/ref
+
+RUN SOURCE_DIR=/usr/ref/content cargo install --path .
+
+FROM debian:bookworm-slim
+# RUN apt-get update && apt-get install -y libssl-dev ca-certificates && rm -rf /var/lib/apt/lists/*
+COPY --from=builder /usr/local/cargo/bin/od_ref_bot /usr/local/bin/od_ref_bot
+
+CMD ["od_ref_bot"]

tools/od_ref_bot/build.rs

@@ -9,29 +9,31 @@ const SOURCE_DIR: &str = "../../content";
 
 fn main() -> Result<(), Box<dyn Error>> {
     let dest_path = Path::new("./src/content.rs");
+    let from_path = std::env::var("SOURCE_DIR").unwrap_or(SOURCE_DIR.to_string());
+
     let mut out_files = File::create(dest_path)?;
 
     writeln!(
         &mut out_files,
         r##"use std::collections::HashMap;pub fn get_all() -> HashMap<&'static str, &'static str> {{ let mut out = HashMap::new();"##,
     )?;
 
-    let _ = visit_dir(&mut out_files, SOURCE_DIR);
+    let _ = visit_dir(&mut out_files, from_path.as_str(), &from_path);
 
     writeln!(&mut out_files, r##"out}}"##,)?;
 
     Ok(())
 }
 
-fn visit_dir(file: &mut File, dir: &str) -> Result<(), Box<dyn Error>> {
+fn visit_dir(file: &mut File, dir: &str, from_dir: &String) -> Result<(), Box<dyn Error>> {
     for inner_file in fs::read_dir(dir)? {
         let inner_file = inner_file?;
 
         let file_type = inner_file.file_type()?;
 
         if !file_type.is_file() {
             if file_type.is_dir() {
-                let _ = visit_dir(file, inner_file.path().to_str().unwrap());
+                let _ = visit_dir(file, inner_file.path().to_str().unwrap(), from_dir);
             }
 
             continue;
@@ -42,7 +44,7 @@ fn visit_dir(file: &mut File, dir: &str) -> Result<(), Box<dyn Error>> {
             r##"out.insert("{name}", include_str!(r#"{path}"#));"##,
             name = inner_file
                 .path()
-                .strip_prefix(SOURCE_DIR)
+                .strip_prefix(from_dir)
                 .unwrap()
                 .to_string_lossy()
                 .replace("\\", "/"),
@@ -52,3 +54,4 @@ fn visit_dir(file: &mut File, dir: &str) -> Result<(), Box<dyn Error>> {
 
     Ok(())
 }
+

tools/od_ref_bot/docker-compose.yml

@@ -0,0 +1,9 @@
+services:
+  od_ref_bot:
+    image: od_ref_bot
+    build:
+      context: .
+      dockerfile: Dockerfile
+
+      environment:
+        GITHUB_TOKEN: "some_token"