move to script

.travis.yml

@@ -9,10 +9,7 @@ env:
   - PLATFORMS="linux/amd64 linux/arm64"
   - ARM64_EXCLUDE="(prowler|semgrep|zap)"   # Regex with the check names to exclude from arm64 build
 go_import_path: github.com/adevinta/vulcan-checks
-before_deploy: 
-  - sudo mkdir -m 0755 -p /etc/apt/keyrings && curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg
-  - echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
-  - sudo apt-get update && sudo apt-get install docker-buildx-plugin
+before_deploy: _scripts/setup_buildx.sh
 deploy:
   - provider: script
     script: bash release.sh

_scripts/setup_buildx.sh

@@ -0,0 +1,14 @@
+#!/bin/bash
+
+set -e
+
+if docker buildx version; then
+    exit 0
+fi
+
+sudo mkdir -m 0755 -p /etc/apt/keyrings && curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg &&
+echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null &&
+sudo apt-get update
+sudo apt-get install docker-buildx-plugin
+
+docker buildx version