extract-vcs-exact

#!/usr/bin/gawk -f

function usage() {
  print("Extract the vcs --exact output from a build log to create a repos file.")
  exit 0
}

BEGIN {
  ORS="\n"
  in_vcs_exact=0
  for (i = 0; i < ARGC; i++) {
    if (ARGV[i] == "--help" || ARGV[i] == "-h") {
      usage()
    }
  }
}

/^# BEGIN SUBSECTION: vcs export --exact/ {
  in_vcs_exact=1
  next
}

# Consume (venv) printout
in_vcs_exact == 1 && /^\(venv\)/ {
  next
}

# Consume command print line `==> vcs export --exact "src"`
in_vcs_exact == 1 && /==>/ {
  next
}

in_vcs_exact == 1 && /# END SUBSECTION/ {
  exit(0)
}

in_vcs_exact == 1 && /^$/ {
  exit(0)
}

in_vcs_exact == 1 {
  print $0
}