From 79ba0ae913e71ada60db71c45fd535f1423319d1 Mon Sep 17 00:00:00 2001
From: lachtan <martin.blazik@gmail.com>
Date: Sun, 15 Mar 2026 16:28:34 +0100
Subject: [PATCH] Add shellcheck hook and configuration

---
 .claude/hooks/shellcheck.sh | 22 ++++++++++++++++++++++
 .claude/settings.json       | 15 +++++++++++++++
 .shellcheckrc               | 12 ++++++++++++
 3 files changed, 49 insertions(+)
 create mode 100755 .claude/hooks/shellcheck.sh
 create mode 100644 .claude/settings.json
 create mode 100644 .shellcheckrc

diff --git a/.claude/hooks/shellcheck.sh b/.claude/hooks/shellcheck.sh
new file mode 100755
index 0000000..9bb3609
--- /dev/null
+++ b/.claude/hooks/shellcheck.sh
@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+
+set -E -o errexit -o nounset -o pipefail
+
+# Exit silently if required tools are missing
+command -v shellcheck > /dev/null 2>&1 || exit 0
+command -v file > /dev/null 2>&1 || exit 0
+command -v jq > /dev/null 2>&1 || exit 0
+
+input=$(cat)
+file_path=$(printf '%s' "$input" | jq -r '.tool_input.file_path // empty')
+
+[[ -z "$file_path" || ! -f "$file_path" ]] && exit 0
+
+file_type=$(file --brief "$file_path")
+case "$file_type" in
+  *"Bourne-Again shell"*|*"bash"*|*"/bin/bash"*) ;;
+  *"shell script"*|*"/bin/sh"*) ;;
+  *) exit 0 ;;
+esac
+
+shellcheck --format=gcc "$file_path" >&2
diff --git a/.claude/settings.json b/.claude/settings.json
new file mode 100644
index 0000000..ca95610
--- /dev/null
+++ b/.claude/settings.json
@@ -0,0 +1,15 @@
+{
+  "hooks": {
+    "PostToolUse": [
+      {
+        "matcher": "Edit|Write",
+        "hooks": [
+          {
+            "type": "command",
+            "command": ".claude/hooks/shellcheck.sh"
+          }
+        ]
+      }
+    ]
+  }
+}
diff --git a/.shellcheckrc b/.shellcheckrc
new file mode 100644
index 0000000..e4dafde
--- /dev/null
+++ b/.shellcheckrc
@@ -0,0 +1,12 @@
+# Default shell for sourced files without shebang (SC2148)
+shell=bash
+
+# Sourced files define variables used by other files after source
+disable=SC2034
+
+# Non-constant and external source paths are intentional
+disable=SC1090
+disable=SC1091
+
+# Functions invoked indirectly via trap/callback
+disable=SC2317