From 7e5590cf8ff732a946629b6f766c7a2c9b2ac425 Mon Sep 17 00:00:00 2001
From: Darren Tucker <dtucker@dtucker.net>
Date: Tue, 2 Jun 2026 18:49:02 +1000
Subject: [PATCH] Replace shell-level timeout with dedicated command.

It turns out the systems we run this workflow on all have timeout(1),
---
 .github/setup_ci.sh         | 25 ++++---------------------
 .github/workflows/c-cpp.yml |  4 +++-
 2 files changed, 7 insertions(+), 22 deletions(-)

diff --git a/.github/setup_ci.sh b/.github/setup_ci.sh
index 22f0a6668..63c61f9a0 100755
--- a/.github/setup_ci.sh
+++ b/.github/setup_ci.sh
@@ -2,29 +2,14 @@
 
 config="$1"
 target="$2"
-retry="$3"
-
-timeout=3600
-
-fail ()		{ trap '' 0; exit 1; }
-success ()	{ trap '' 0; exit 0; }
-
-if [ "${retry}" != "retry" ]; then
-	echo Set trap for single retry with timeout at $timeout seconds.
-	trap "exec $0 $1 $2 retry" HUP
-	(sleep $timeout; kill -HUP $$) &
-	trap "kill $!; sleep 120; exec $0 $1 $2 retry" 0
-else
-	echo "$0: retrying"
-fi
 
 PACKAGES="tmux"
 
 echo Running as:
 id
 
-echo Environment saved to env.txt
-set >env.txt
+echo Saving environment to runner-env.txt
+set >runner-env.txt
 
  . .github/configs ${config}
 
@@ -84,7 +69,7 @@ if [ ! -z "$SUDO" ]; then
 	fi
 	if ! "$SUDO" -u nobody -S test -x ~ </dev/null; then
 		echo "Still can't sudo to nobody."
-		fail
+		exit 1
 	fi
 fi
 
@@ -193,7 +178,7 @@ for TARGET in $TARGETS; do
     zlib-*)
        ;;
     *) echo "Invalid option '${TARGET}'"
-        fail
+        exit 1
         ;;
     esac
 done
@@ -316,5 +301,3 @@ if [ ! -z "${EPHEMERAL_VM}" ]; then
 	;;
     esac
 fi
-
-success
diff --git a/.github/workflows/c-cpp.yml b/.github/workflows/c-cpp.yml
index 64300b45b..1136f1e27 100644
--- a/.github/workflows/c-cpp.yml
+++ b/.github/workflows/c-cpp.yml
@@ -139,7 +139,9 @@ jobs:
         CYGWIN: "winsymlinks:native"
     - uses: actions/checkout@main
     - name: setup CI system
-      run: sh ./.github/setup_ci.sh ${{ matrix.config }} ${{ matrix.target }}
+      run: |
+        timeout 1200 sh .github/setup_ci.sh ${{ matrix.config }} ${{ matrix.target }} || \
+        sh .github/setup_ci.sh ${{ matrix.config }} ${{ matrix.target }}
       env:
         CYGWIN_SETUP: ${{ steps.cygwin_install.outputs.setup }}
     - name: autoreconf