From 8fd27831751c40c796a6c97a5c831b1302ca2134 Mon Sep 17 00:00:00 2001 From: Garry Tan Date: Fri, 28 Aug 2026 19:59:06 +0000 Subject: [PATCH] =?UTF-8?q?fix(config):=20portable=20sha256=20=E2=80=94=20?= =?UTF-8?q?Linux=20ships=20sha256sum,=20not=20shasum?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit resolve-user-slug and endpoint hashing exited 127 on Amazon Linux (shasum is a macOS/perl tool). New _sha256_hex helper prefers sha256sum and falls back to shasum, matching gstack-verify-gate's existing pattern; both call sites converted. Co-Authored-By: Claude Fable 5 --- bin/gstack-config | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/bin/gstack-config b/bin/gstack-config index 6c23b5d8d..13afa99ea 100755 --- a/bin/gstack-config +++ b/bin/gstack-config @@ -192,9 +192,14 @@ lookup_default() { # Brain-integration helpers (T5+T10+T16) # ────────────────────────────────────────────────────────────────────── +# Portable sha256 hex on stdin: Linux ships sha256sum, macOS ships shasum. +_sha256_hex() { + if command -v sha256sum >/dev/null 2>&1; then sha256sum | awk '{print $1}'; else shasum -a 256 | awk '{print $1}'; fi +} + # Compute sha8 of a string. Used for endpoint hashing. sha8_of() { - printf '%s' "$1" | shasum -a 256 | cut -c1-8 + printf '%s' "$1" | _sha256_hex | cut -c1-8 } # Detect the active brain endpoint hash. Reads ~/.claude.json for the gbrain @@ -228,7 +233,7 @@ endpoint_hash_with_collision_check() { _claude_json="$HOME/.claude.json" if [ -n "$_matching" ] && [ -f "$_claude_json" ] && command -v jq >/dev/null 2>&1; then _url=$(jq -r '.mcpServers.gbrain.url // .mcpServers.gbrain.transport.url // empty' "$_claude_json" 2>/dev/null) - _sha16=$(printf '%s' "$_url" | shasum -a 256 | cut -c1-16) + _sha16=$(printf '%s' "$_url" | _sha256_hex | cut -c1-16) # Look for any sha16-namespaced key that conflicts. If a stored sha16 exists # and differs from current sha16, that's the collision evidence; emit sha16. _stored16=$(grep -E "^(brain_trust_policy|user_slug_at)@${_sha16}" "$CONFIG_FILE" 2>/dev/null | head -1 || true)