fix: SIGPIPE false negatives in pipefail shell tests

cardano_node_tests/cluster_scripts/testnets/start-cluster

@@ -179,7 +179,11 @@ tn_start_node() {
 
   echo "Waiting until replay is finished"
   sleep 10
-  while tail -n 10 "${STATE_CLUSTER}/relay1.stdout" | grep -E -q "replay progress|IPSubscriptionTarget"; do
+  # No `-q`: it exits on the first match, leaving `tail` writing into a closed pipe, and
+  # `pipefail` would promote that SIGPIPE status and end the wait early. Plain `grep` scans
+  # all of its input, so `tail` always finishes writing.
+  while tail -n 10 "${STATE_CLUSTER}/relay1.stdout" |
+    grep -E "replay progress|IPSubscriptionTarget" > /dev/null; do
     sleep 10
   done
 

pyproject.toml

@@ -26,7 +26,7 @@ classifiers = [
 dependencies = [
     "allure-pytest (>=2.15.2,<3.0.0)",
     "cardano-clusterlib (>=0.10.5,<0.11.0)",
-    "cardonnay (>=0.4.3,<0.5.0)",
+    "cardonnay (>=0.4.4,<0.5.0)",
     "cbor2 (>=5.7.1,<6.0.0)",
     "filelock (>=3.20.0,<4.0.0)",
     "hypothesis (>=6.148.7,<7.0.0)",

runner/runc.sh

@@ -142,7 +142,9 @@ add_worktree_git_mount() {
   local gitdir main_git_dir
 
   [ -f "$repo_dir/.git" ] || return 0
-  gitdir="$(sed -n 's/^gitdir: //p' "$repo_dir/.git" | head -n 1)"
+  # `exit` after the first match keeps this to the first `gitdir:` line. One process, so the
+  # status is awk's own and an unreadable `.git` still aborts under `errexit`.
+  gitdir="$(awk '/^gitdir: /{print substr($0, 9); exit}' "$repo_dir/.git")"
   if [ -z "$gitdir" ]; then
     echo "Warning: '$repo_dir/.git' has no 'gitdir:' line; git will not work inside the container." >&2
     return 0

scripts/postgres-start.sh

@@ -23,8 +23,9 @@ is_postgres_pid() {
   local cmdline
   cmdline="$(ps -o args= -p "$pid" 2>/dev/null || echo "")"
   # verify process is postgres serving expected data directory
-  # use grep -F for literal string match (glob metacharacters in pg_dir are safe)
-  [[ "$cmdline" == *postgres* ]] && printf '%s' "$cmdline" | grep -qF "$pg_dir/data"
+  # the quoted right-hand side makes this a literal match, so glob metacharacters in
+  # pg_dir are safe
+  [[ "$cmdline" == *postgres* && "$cmdline" == *"$pg_dir/data"* ]]
 }
 
 kill_postgres() {