scripts/lib/render-timing.awk


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# scripts/lib/render-timing.awk
# Render a per-test timing HTML report from sorted TSV rows.
# Input TSV (already sorted slowest-first): "<seconds>\t<suite>\t<test>".
# Variables: -v TITLE="..."

function esc(s) {
  gsub(/&/, "\\&amp;", s); gsub(/</, "\\&lt;", s); gsub(/>/, "\\&gt;", s)
  return s
}

BEGIN { FS = "\t"; n = 0; total = 0 }

{
  n++
  sec[n]   = $1 + 0
  suite[n] = $2
  name[n]  = $3
  total   += $1 + 0
  if (n == 1) maxv = $1 + 0
}

END {
  print "<!DOCTYPE html><html lang=\"en\"><head><meta charset=\"utf-8\">"
  print "<title>" esc(TITLE) "</title>"
  print "<style>body{font:14px/1.5 sans-serif;margin:0;padding:1.5rem;color:#111}"
  print "h1{font-size:18px}.meta{color:#555;margin-bottom:1rem}"
  print "table{border-collapse:collapse;width:100%}"
  print "th,td{padding:.3rem .5rem;text-align:left;border-bottom:1px solid #eee}"
  print "td.num{text-align:right;font-variant-numeric:tabular-nums}"
  print ".bar{height:.7em;background:#4c8bf5;border-radius:2px}"
  print "</style></head><body>"
  print "<h1>" esc(TITLE) "</h1>"
  printf "<div class=\"meta\">%d tests &middot; %.3f s total</div>\n", n, total
  print "<table><thead><tr><th>#</th><th>seconds</th><th>test</th><th></th></tr></thead><tbody>"
  for (i = 1; i <= n; i++) {
    w = (maxv > 0 ? (sec[i] * 100.0 / maxv) : 0)
    printf "<tr><td class=\"num\">%d</td><td class=\"num\">%.3f</td><td>%s</td>", i, sec[i], esc(name[i])
    printf "<td><div class=\"bar\" style=\"width:%.1f%%\"></div></td></tr>\n", w
  }
  print "</tbody></table></body></html>"
}