CDK without Tags: awk script to hide Tag-only changes in CDK

gistfile1.txt

#!/usr/bin/env
# strict mode
set -euo pipefail
IFS=$'\n\t'

# from https://github.com/aws/aws-cdk/issues/25742
# why am i debugging^Wworking in awk
format_cdk_diff() {
    DEBUGGING=$1;
    awk 'BEGIN{ inTagBlock=0; previousLine=""; debugging='$DEBUGGING'; }
    {
        if (debugging){print "pre    " previousLine " / " $0;}
        if (intTagBlock = 1) {
           if (debugging){
              print "exit?   : " (!(previousLine ~ /^ .. \[~] Tags/)) " && \
                (" (previousLine ~ /^\[~]/) " || "( previousLine ~ /^ .. \[~]/ )" || "( previousLine == "") ")";
              print "why  : " previousLine;
          }

          if ( \
              !(previousLine ~ /^ .. \[~] Tags/) && \
              (previousLine ~ /^\[~]/ || previousLine ~ /^ .. \[~]/ || previousLine == "") \
              )
          {
              if (debugging){print "exit";}
              inTagBlock=0;
          }
        }
        if (inTagBlock == 0 && (previousLine ~ /\[~] (AWS|Custom)::/ && $0 ~ /Tags/ || $0 ~ /Tags/ ))
        {
            if (debugging){print "enter";}
            print previousLine " / " $0;
            inTagBlock=1;
        }
        if (inTagBlock == 0) {
            if (debugging){
              print "show : " previousLine;
            } else {
              print previousLine;
            }
        } else if (debugging) {
            print "hide  : " previousline;
        }
        if (debugging){print "line " inTagBlock " " $0;}
        previousLine=$0;
    }'
}

# actually, permit unset $2 so we can do `all` case
set +u
DEBUGGING=$1
shift
echo '"'$*'"'
# note color breaks the matching
cdk diff $* 2>&1 >/dev/null | format_cdk_diff $DEBUGGING

no debug version

#!/usr/bin/env
# strict mode
set -euo pipefail
IFS=$'\n\t'

# from https://github.com/aws/aws-cdk/issues/25742
format_cdk_diff() {
  
    awk 'BEGIN{ inTagBlock=0; previousLine=""; }
    {
        if (intTagBlock = 1) {
          if ( \
              !(previousLine ~ /^ .. \[~] Tags/) && \
              (previousLine ~ /^\[~]/ || previousLine ~ /^ .. \[~]/ || previousLine == "") \
              )
          {
              inTagBlock=0;
          }
        }
        if (inTagBlock == 0 && (previousLine ~ /\[~] (AWS|Custom)::/ && $0 ~ /Tags/ || $0 ~ /Tags/ ))
        {
            print previousLine " / " $0;
            inTagBlock=1;
        }
        if (inTagBlock == 0) {
            print previousLine;
        }
        previousLine=$0;
    }'
}
# actually, permit unset so we can do `all` case
set +u
echo '"'$@'"'
cdk diff $@ 2>&1 >/dev/null