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fix(hooks): replace BASH_SOURCE with POSIX-safe $0

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Replace ${BASH_SOURCE[0]:-$0} with $0 in hooks/session-start and the
polyglot-hooks docs example. BASH_SOURCE uses bash array syntax that
causes 'Bad substitution' on systems where /bin/sh is dash (Ubuntu).

Since session-start is always executed (never sourced), $0 and
BASH_SOURCE give the same result. Tested on Linux (bash + dash) and
Windows (Git Bash via CMD and direct).

Based on #553, closes #553.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
jesse
2026-03-15 18:40:33 +00:00
parent ea472dedf0
commit fd318b1b79
2 changed files with 2 additions and 2 deletions
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hooks/session-start
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@@ -4,7 +4,7 @@
set -euo pipefail
# Determine plugin root directory
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]:-$0}")" && pwd)"
SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
PLUGIN_ROOT="$(cd "${SCRIPT_DIR}/.." && pwd)"
# Check if legacy skills directory exists and build warning