From 3432bf5ef17e38864f52a61a6b7e3dc06946c48d Mon Sep 17 00:00:00 2001
From: Murat Eken <meken@google.com>
Date: Fri, 26 Jun 2026 09:14:21 +0200
Subject: [PATCH 1/2] ql sync improvements...

---
 tools/setup-qwiklabs.sh | 46 +++++++++++++++++++++++++++++++----------
 1 file changed, 35 insertions(+), 11 deletions(-)

diff --git a/tools/setup-qwiklabs.sh b/tools/setup-qwiklabs.sh
index 518cbd24..d2a0fa73 100755
--- a/tools/setup-qwiklabs.sh
+++ b/tools/setup-qwiklabs.sh
@@ -17,24 +17,46 @@ while :; do
     shift
 done
 
-if [ -z ${HACK} ] || [ -z ${SLUG} ]; then
-    echo "Usage: ${0} --hack=<string> --slug=<string>" 1>&2; exit 1
-fi
-
-if [[ ${SLUG} =~ ^ghacks[0-9]{3}$ ]]; then
-    SLUG=${SLUG}-${HACK}
-fi
-
-if [[ ! ${SLUG} =~ ^ghacks[0-9]{3}-${HACK}$ ]]; then
-    echo "Slug '${SLUG}' has to match pattern 'ghacks[0-9]{3}-${HACK}'" 1>&2; exit 1
+if [ -z "${HACK}" ]; then
+    echo "Usage: ${0} --hack=<string> [--slug=<string>]" 1>&2; exit 1
 fi
 
 HACK_DIR="${SRC_DIR}/hacks/${HACK}"
 
-if [ ! -d ${HACK_DIR} ] || [ ! -d ${DST_DIR} ]; then
+if [ ! -d "${HACK_DIR}" ] || [ ! -d "${DST_DIR}" ]; then
     echo "${HACK_DIR} and/or ${DST_DIR} missing, are you in the right directory?" 1>&2; exit 1
 fi
 
+if [ -z "${SLUG}" ]; then
+    # Check if there is an existing directory matching ghacks[0-9]{3}-${HACK}
+    EXISTING_DIR=$(ls "${DST_DIR}/labs" | grep -E "ghacks[0-9]{3}-${HACK}" | head -n 1)
+
+    if [ -n "${EXISTING_DIR}" ]; then
+        SLUG="${EXISTING_DIR}"
+        echo "Found existing directory for hack '${HACK}': ${SLUG}"
+    else
+        # Detect the latest ghacks number in the target repository and increment it
+        LATEST_NUM=$(ls "${DST_DIR}/labs" | grep -E "ghacks[0-9]{3}-*" | \
+            sed -E 's/^ghacks([0-9]{3})-.*/\1/' | sort -n | tail -n 1)
+        if [ -z "${LATEST_NUM}" ]; then
+            NEXT_NUM=1
+        else
+            NEXT_NUM=$((10#${LATEST_NUM} + 1))
+        fi
+        SLUG=$(printf "ghacks%03d-${HACK}" ${NEXT_NUM})
+        echo "Detected next slug: ${SLUG}"
+    fi
+else
+    if [[ ${SLUG} =~ ^ghacks[0-9]{3}$ ]]; then
+        SLUG=${SLUG}-${HACK}
+    fi
+
+    if [[ ! ${SLUG} =~ ^ghacks[0-9]{3}-${HACK}$ ]]; then
+        echo "Slug '${SLUG}' has to match pattern 'ghacks[0-9]{3}-${HACK}'" 1>&2; exit 1
+    fi
+fi
+
+
 LAB_DIR="${DST_DIR}/labs/${SLUG}"
 mkdir -p ${LAB_DIR}
 
@@ -58,6 +80,8 @@ BLOCK=`cat<<EOF
 ## Lab resources for the participants
 
 <ql-code-block bash templated noWrap>
+Latest instructions: https://ghacks.dev/hacks/${HACK}
+
 $OUTPUTS
 </ql-code-block>
 EOF

From ae75d8d392337dac731d0682168dc74749b9b382 Mon Sep 17 00:00:00 2001
From: Murat Eken <meken@google.com>
Date: Wed, 1 Jul 2026 09:51:33 +0200
Subject: [PATCH 2/2] improving the sync script...

---
 tools/setup-qwiklabs.sh | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/tools/setup-qwiklabs.sh b/tools/setup-qwiklabs.sh
index d2a0fa73..00af09bd 100755
--- a/tools/setup-qwiklabs.sh
+++ b/tools/setup-qwiklabs.sh
@@ -17,16 +17,22 @@ while :; do
     shift
 done
 
+HACK="${HACK:-$1}"
+
 if [ -z "${HACK}" ]; then
-    echo "Usage: ${0} --hack=<string> [--slug=<string>]" 1>&2; exit 1
+    echo "Usage: ${0} <hack> [--slug=<string>]" 1>&2; exit 1
 fi
 
+# Sanitize in case a path is passed
+HACK=$(basename "${HACK}")
+
 HACK_DIR="${SRC_DIR}/hacks/${HACK}"
 
 if [ ! -d "${HACK_DIR}" ] || [ ! -d "${DST_DIR}" ]; then
     echo "${HACK_DIR} and/or ${DST_DIR} missing, are you in the right directory?" 1>&2; exit 1
 fi
 
+# If slug is not provided, find it or generate it (for new hacks)
 if [ -z "${SLUG}" ]; then
     # Check if there is an existing directory matching ghacks[0-9]{3}-${HACK}
     EXISTING_DIR=$(ls "${DST_DIR}/labs" | grep -E "ghacks[0-9]{3}-${HACK}" | head -n 1)
@@ -81,7 +87,6 @@ BLOCK=`cat<<EOF
 
 <ql-code-block bash templated noWrap>
 Latest instructions: https://ghacks.dev/hacks/${HACK}
-
 $OUTPUTS
 </ql-code-block>
 EOF