From 042cc90fad9f88e8834052441110c1dae5ffa809 Mon Sep 17 00:00:00 2001
From: Silvio Rhatto <rhatto@riseup.net>
Date: Tue, 26 Dec 2023 01:56:46 -0300
Subject: Fix: hydractl: trac-upgrade: check for Trac installation

---
 share/hydractl/trac-upgrade | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/share/hydractl/trac-upgrade b/share/hydractl/trac-upgrade
index 31e8f52..c5774f9 100755
--- a/share/hydractl/trac-upgrade
+++ b/share/hydractl/trac-upgrade
@@ -30,6 +30,15 @@ fi
 
 # Upgrade
 for instance in `find $BASE -maxdepth 2 -name trac`; do
+  # Check for Trac
+  #
+  # Do this inside the loop to avoid giving an error
+  # message if there's no trac instance
+  if ! which trac-admin &> /dev/null; then
+    echo "Could not find a trac-admin executable, aborting"
+    exit 1
+  fi
+
   (
     echo "Upgrading trac instance $instance..."
     cd $instance
-- 
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