Add robotrumble exec build insts; use REPO_DIR for logs parent

Author: john-b-yang

codeclash/constants.py

@@ -1,9 +1,9 @@
 from pathlib import Path
 
-from codeclash import PACKAGE_DIR
+from codeclash import REPO_DIR
 
 DIR_LOGS = Path("logs")  # this is used also for parts of the paths in the environment
-LOCAL_LOG_DIR = PACKAGE_DIR / DIR_LOGS  # this one is always relative to the location of this code
+LOCAL_LOG_DIR = REPO_DIR / DIR_LOGS  # this one is always relative to the location of this code
 DIR_WORK = Path("/testbed")
 FILE_RESULTS = "results.json"
 GH_ORG = "emagedoc"

codeclash/games/robotrumble/README.md

@@ -0,0 +1,44 @@
+# RobotRumble
+
+* Website: https://robotrumble.org/
+* GitHub: https://github.com/robot-rumble/
+
+### To rebuild `./robotrumble` executable from scratch
+From within a dockerfile...
+```dockerfile
+# Ensure awscli is installed w/ apt-get
+RUN apt-get update && apt-get install -y awscli curl
+
+# Install Rust via rustup
+RUN curl https://sh.rustup.rs -sSf | sh -s -- -y \
+ && . "$HOME/.cargo/env" \
+ && echo 'source $HOME/.cargo/env' >> /etc/bash.bashrc
+ENV PATH="/root/.cargo/bin:${PATH}"
+
+# Use a newer toolchain required by deps, and default to it
+RUN rustup toolchain install 1.82.0 && rustup default 1.82.0
+
+# Force Cargo to use system linker (gcc) instead of rust-lld
+RUN mkdir -p /root/.cargo \
+ && printf '[target.x86_64-unknown-linux-gnu]\nlinker = "cc"\n' > /root/.cargo/config.toml
+
+# Clone the repo... (OMITTED)
+
+# Pull public S3 assets
+RUN cd /testbed/cli && aws --no-sign-request s3 sync s3://rr-public-assets/lang-runners ../logic/wasm-dist/lang-runners
+RUN cd /testbed/cli && aws --no-sign-request s3 sync s3://rr-public-assets/cli-assets dist/
+
+# Build without updating deps; use Cargo.lock as-is
+RUN cd /testbed/cli && cargo build --locked --release
+
+# Place the built binary at /testbed/rumblebot
+RUN install -Dm755 /testbed/cli/target/release/rumblebot /testbed/rumblebot
+
+# Remove some unnecessary bloat
+RUN rm -rf /testbed/cli/target
+
+# Remove rust toolchains & caches
+RUN rm -rf /root/.cargo /root/.rustup /root/.cache \
+ && sed -i '/source \$HOME\/\.cargo\/env/d' /etc/bash.bashrc || true \
+ && true
+```