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#!/usr/bin/env bash
#Clyhtsuriva
PURPLE=$(tput setaf 5)
RED=$(tput setaf 1)
NC=$(tput sgr0)
#just for aesthetic when printing on stdout
[ -z "$1" ] && printf "%s\n" "${RED}Image name required${NC}" && exit 1 #the user should give us the image name
image="$1"
host="localhost"
port=5000
request="curl -s $host:$port/v2/$image/tags/list"
json=$($request) #actually do the request
printf "%s\n" "${PURPLE}request: $request"
printf "%s\n" "json response: $json${NC}"
grep -q "error" <<< "$json" && printf "%s\n" "${RED}Image not found${NC}" && exit 1
parsed=$(cut -d: -f3 <<< "$json") #only takes what's after "tags"
i=1
max_found=0
buffer=0
while [ $max_found -eq 0 ]; do
if ! grep -q "v" <<< "$(cut -d'"' -f$i <<< "$parsed")" ; then
#if there is a v when cutting with the delimiter "
latest=$(cut -d'"' -f$i <<< "$parsed") #since it's ok, we're saving it
[ "$(sed 's/v//g' <<< "$latest")" -gt $buffer ] && \
buffer=$(sed 's/v//g' <<< "$latest")
#save in buffer in greater than anything else
fi
((i++)) # incrementing
if [ -z "$(cut -d'"' -f"$i" <<< "$parsed")" ]; then
max_found=1 #if it's empty, it means we are out of tags
fi
done
latest=$buffer
version=$latest
((version++))
printf "%s\n" "${PURPLE}latest version: v$latest"
printf "%s\n" "new tag: v$version"
printf "%s\n" "Tagging ...${NC}"
docker tag "$image" localhost/"$image":v"$version"
printf "%s\n" "${PURPLE}Pushing ...${NC}"
docker push localhost/"$image":v"$version"
printf "%s\n" "${PURPLE}Looking at the registry ...${NC}"
$request
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