yamlrmtag.awk

#!/usr/bin/awk -f

BEGIN {
    if (!Tag) { print "must set Tag!"; exit 1 }
}

$1 == (Tag ":") {
    StartedSkip = 1
    Spaces = index($0, Tag)
    next
}

StartedSkip {
    match($0,/^\s+/)
    spaces1 = RLENGTH
    if (spaces1 > Spaces) {
        # skipping
    } else {
        # stop skipping
        print
        StartedSkip = 0
    }
    next
}

1

yamlrmtag_usage.sh

# usage
awk -v Tag='x-code-samples' -f ./yamlrmtag.awk swagger.yaml > swagger_1.yaml