commit-msg

#!/bin/sh
# Expectation-change guard (#640, QUALITY.md section 3).
#   Rejects a commit that changes test expectations (Golden Result*.txt, NUnit test removal / Ignore)
#   without an "Expectation-Change: <reason>" trailer in the commit message.
#   The detection itself is root/programs/CheckExpectationChange.ps1 (shared with the CI check).
#
#   Enable : git config core.hooksPath .githooks
#   Note   : keep this file ASCII and LF (see .gitattributes). sh runs it on every platform.

root=$(git rev-parse --show-toplevel) || exit 1
script="$root/root/programs/CheckExpectationChange.ps1"

# Windows PowerShell 5.1 first (what users run on Windows), then PowerShell 7.
if command -v powershell.exe >/dev/null 2>&1; then
    ps=powershell.exe
elif command -v pwsh >/dev/null 2>&1; then
    ps=pwsh
else
    echo "commit-msg: PowerShell not found; cannot check expectation changes (QUALITY.md section 3)." >&2
    exit 1
fi

"$ps" -NoProfile -ExecutionPolicy Bypass -File "$script" -Staged -MessageFile "$1"
status=$?
if [ $status -ne 0 ]; then
    echo "commit-msg: rejected by CheckExpectationChange.ps1 (exit $status). See QUALITY.md section 3." >&2
fi
exit $status