micro/.githooks/pre-commit

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#!/usr/bin/env sh
set -eu
failed=0
cr=$(printf '\r')
staged_shell_files=$(git diff --cached --name-only --diff-filter=ACMR | grep -E '\.sh$' || true)
staged_markdown_files=$(git diff --cached --name-only --diff-filter=ACMR | grep -E '\.md$' || true)
for file in $staged_shell_files; do
mode=$(git ls-files --stage -- "$file" | awk '{print $1}')
if [ "$mode" != "100755" ]; then
echo "ERROR: $file is not executable in Git index. Run: git add --chmod=+x $file" >&2
failed=1
fi
if git show ":$file" | grep -q "$cr"; then
echo "ERROR: $file contains CRLF in staged content. Use LF line endings." >&2
failed=1
fi
done
if [ -n "$staged_markdown_files" ]; then
if ! command -v markdownlint >/dev/null 2>&1; then
echo "ERROR: markdownlint is required to validate staged Markdown files (.md)." >&2
echo "Install with npm: npm install --global markdownlint-cli" >&2
failed=1
else
# Validate the staged markdown files currently present in the working tree.
# This keeps the hook simple and fast for standard project usage.
if ! markdownlint $staged_markdown_files; then
failed=1
fi
fi
fi
if [ "$failed" -ne 0 ]; then
echo "Pre-commit check failed." >&2
exit 1
fi