Import existing ~/.emacs as baseline, add tracking tooling

Byte-identical import of the live ~/.emacs (Emacs 31.1, loads clean
in batch and GUI apart from warnings noted in README).

Tooling: check.sh (batch-load validation), install.sh (backup +
symlink ~/.emacs -> emacs.el), Makefile, README.

1 files changed, 30 insertions, 0 deletions

diff --git a/check.sh b/check.sh
new file mode 100755
index 0000000..d243171
--- /dev/null
+++ b/check.sh
@@ -0,0 +1,30 @@
+#!/usr/bin/env bash
+# Validate emacs.el by loading it in a batch Emacs.
+# Run this before committing changes to your config.
+#
+# PASS = file loads with exit 0 and no errors.
+# Warnings are shown but do not fail the check.
+set -uo pipefail
+
+REPO_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+INIT="$REPO_DIR/emacs.el"
+OUTPUT=$(mktemp)
+trap 'rm -f "$OUTPUT"' EXIT
+
+timeout 180 emacs --batch -l "$INIT" >"$OUTPUT" 2>&1
+STATUS=$?
+
+echo "--- emacs --batch -l emacs.el (exit $STATUS) ---"
+cat "$OUTPUT"
+echo "--- end output ---"
+
+ERRORS=$(grep -cE "^(Error|error|Cannot open|File mode specification error)" "$OUTPUT")
+WARNINGS=$(grep -c "^Warning" "$OUTPUT" || true)
+
+if [ "$STATUS" -eq 0 ] && [ "$ERRORS" -eq 0 ]; then
+    echo "PASS: config loads cleanly ($WARNINGS warning(s))"
+    exit 0
+else
+    echo "FAIL: config has errors (see output above)"
+    exit 1
+fi