cleaner diff with tanka/kubectl

diff.sh

#!/usr/bin/env sh
# Usage: export KUBECTL_EXTERNAL_DIFF=/path/to/diff.sh

function warning() {
    ORANGE='\033[0;33m'
    NC='\033[0m' # No Color
    >&2 printf "${ORANGE}WARNING: ${1}${NC}\n"
}

warning "last-applied-configuration <redacted>"
find $1 -type f | xargs sed -i '/kubectl.kubernetes.io\/last-applied-configuration/!b;n;c<redacted>'
find $2 -type f | xargs sed -i '/kubectl.kubernetes.io\/last-applied-configuration/!b;n;c<redacted>'

warning "ignoring fluxcd.io/* annotations"
find $1 -type f | xargs sed -i '/fluxcd.io\//d'

warning "ignoring generation: [0-9]+"
find $1 -type f | xargs sed -i '/generation: [0-9]\+/d'
find $2 -type f | xargs sed -i '/generation: [0-9]\+/d'

#icdiff -r --no-bold --head=5000 --line-numbers --cols $(tput cols) $@
diff --minimal -u -N $@

tk-d

#!/usr/bin/env sh
# Put his on your PATH - see https://github.com/grafana/tanka/pull/412
export KUBECTL_EXTERNAL_DIFF=/path/to/diff.sh
${EXECUTABLE} diff $@