From 042ee681b2121dd4a8445457fb35abae2cf9bd77 Mon Sep 17 00:00:00 2001
From: Anurag <81210977+kranurag7@users.noreply.github.com>
Date: Sun, 28 Jan 2024 01:29:01 +0530
Subject: [PATCH] pin packer version to 1.9.5

if packer version is greater than 1.9.5 in semver terms then downgrade packer.

Signed-off-by: kranurag7 <81210977+kranurag7@users.noreply.github.com>
---
 images/capi/hack/ensure-packer.sh | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/images/capi/hack/ensure-packer.sh b/images/capi/hack/ensure-packer.sh
index 70c78b66ca..1bc0a49a29 100755
--- a/images/capi/hack/ensure-packer.sh
+++ b/images/capi/hack/ensure-packer.sh
@@ -38,8 +38,29 @@ source hack/utils.sh
 # invoked, so we are timeboxing it to 10 seconds. This shouldn't be the
 # case with Packer installed from Hashicorp releases, which should give
 # us a version number. This helps us distinguish the two Packer executables.
-if (command -v packer && timeout 10 packer version) >/dev/null 2>&1; then exit 0; fi
 
+if (command -v packer) >/dev/null 2>&1; then
+  echo "Packer is already installed, checking version..."
+  # if it's not the hashicorp packer, return "unexpected packer found"
+  if !(timeout 10 packer version) >/dev/null 2>&1; then
+    echo "unexpected packer found";
+    echo "downloading hashicorp packer version v1.9.5"
+    exit 0
+  fi
+  existing_packer_version=$(packer version | head -1 | cut -d 'v' -f 2; exit 0)
+  echo "existing packer version: $existing_packer_version"
+  if [ "$existing_packer_version" != "$_version" ]; then
+    echo "unsupported packer version ($existing_packer_version) found"
+    echo "current packer version: $existing_packer_version is not supported"
+    echo "Downgrading packer to ${_version}"
+  else
+    echo "Packer version is as expected"
+    echo "Packer version $existing_packer_version is already installed"
+    exit 0
+  fi
+fi
+
+echo "Installing packer v${_version} in .local/bin"
 mkdir -p .local/bin && cd .local/bin
 
 SED="sed"