chore: standardize Nim builds to out/ subdir, simplify .gitignore

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.gitignore

@@ -22,14 +22,8 @@ __pycache__/
 devbox.json
 devbox.lock
 
-# Compiled bot binaries and output directories
-# Nim compiles to bot root (executable, no extension) and to out/ subdirectories
+# Compiled bot binaries — all builds go to *_garage/out/
 *_garage/out/
-GotoTest_garage/GotoTest
-OscillatorBot_garage/OscillatorBot
-PPO_Bot_garage/PPO_Bot
-QBot_garage/QBot
-SAC_LSTM_Bot_garage/SAC_LSTM_Bot
 
 # Java compiled classes
 *.class

GotoTest_garage/config.nims

@@ -1,3 +1,4 @@
+switch("outdir", "out")
 # begin Nimble config (version 2)
 when withDir(thisDir(), system.fileExists("nimble.paths")):
   include "nimble.paths"

OscillatorBot_garage/OscillatorBot.sh

@@ -1,3 +1,3 @@
 #!/bin/sh
 cd "$(dirname "$0")"
-exec ./OscillatorBot 2>> /tmp/oscillatorbot_stderr.log
+exec ./out/OscillatorBot 2>> /tmp/oscillatorbot_stderr.log

OscillatorBot_garage/config.nims

@@ -1 +1,2 @@
 --path:"../common_libs"
+switch("outdir", "out")

PPO_Bot_garage/PPO_Bot.sh

@@ -4,4 +4,4 @@
 # which deadlock when called from within a multi-threaded Nim bot process.
 export OPENBLAS_NUM_THREADS=1
 cd -- "$(dirname -- "$0")"
-exec "./PPO_Bot"
+exec "./out/PPO_Bot"

PPO_Bot_garage/config.nims

@@ -2,6 +2,7 @@
 # ponytail: adjust path per machine, or use pkg-config
 switch("passL", "-L/nix/store/v07svn2y92bvzjl51aj7c9ca1cwg7rw7-openblas-0.3.32/lib -lopenblas")
 switch("threads", "on")
+switch("outdir", "out")
 # begin Nimble config (version 2)
 when withDir(thisDir(), system.fileExists("nimble.paths")):
   include "nimble.paths"

QBot_garage/QBot.sh

@@ -1,3 +1,3 @@
 #!/bin/sh
 cd "$(dirname "$0")"
-exec ./QBot 2>> /tmp/qbot_stderr.log
+exec ./out/QBot 2>> /tmp/qbot_stderr.log

QBot_garage/config.nims

@@ -1 +1,2 @@
 --path:"../common_libs"
+switch("outdir", "out")

SAC_LSTM_Bot_garage/SAC_LSTM_Bot.sh

@@ -1,4 +1,4 @@
 #!/bin/sh
 # Launch config for tools/training_runner/RunTraining.java (#49): the runner
 # executes <json-basename>.sh inside the bot dir (sample-bots convention).
-exec "$(dirname "$0")/SAC_LSTM_Bot"
+exec "$(dirname "$0")/out/SAC_LSTM_Bot"

SAC_LSTM_Bot_garage/config.nims

@@ -5,6 +5,7 @@ switch("passL", "-L/nix/store/v07svn2y92bvzjl51aj7c9ca1cwg7rw7-openblas-0.3.32/l
 # ponytail: nix store path; adjust per machine, or use pkg-config
 switch("passL", "-L/nix/store/wqvz31s598bvj3zb747943xhl38hjc6h-libzip-1.11.4/lib -lzip")
 switch("threads", "on")
+switch("outdir", "out")
 # Submodules import each other as SAC_LSTM_Bot/<mod>; make that resolvable for
 # the binary build too (tests already add ../src via tests/config.nims).
 switch("path", thisDir() & "/src")

SAC_LSTM_Bot_garage/make_twin.sh

@@ -17,7 +17,7 @@ set -euo pipefail
 
 SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
 TARGET="${1:-${SAMPLE_BOTS_DIR:-/home/davide/Projects/tank-royale/sample-bots/java/build/archive}}/SacTwin"
-BIN="$SCRIPT_DIR/SAC_LSTM_Bot"          # nimble build -d:release output
+BIN="$SCRIPT_DIR/out/SAC_LSTM_Bot"      # nimble build -d:release output (out/ subdir)
 SEED="$SCRIPT_DIR/weights/sac_best.zip" # frozen baseline
 
 [ -x "$BIN" ]   || { echo ">>> $BIN missing — run 'nimble build -d:release' first"; exit 1; }

tools/battle_runner/run.sh

@@ -11,7 +11,7 @@ export PPO_BOT_DIR="$PPO_BOT_SRC"
 export SAMPLE_BOTS_DIR="${SAMPLE_BOTS_DIR:-/home/davide/Projects/tank-royale/sample-bots/java/build/archive}"
 
 # ── 1. Compile PPO_Bot if binary is missing ──────────────────────────────────
-if [ ! -x "$PPO_BOT_SRC/PPO_Bot" ]; then
+if [ ! -x "$PPO_BOT_SRC/out/PPO_Bot" ]; then
     echo ">>> Compiling PPO_Bot..."
     (cd "$PPO_BOT_SRC" && nimble build -d:release)
 fi