Add simplification logging

Signed-off-by: Evan Lloyd New-Schmidt <evan@new-schmidt.com>

src/html.rs

@@ -52,10 +52,12 @@ pub fn simplify(html: &str, lang: &str) -> String {
             if bad_sections.contains(&title.trim()) {
                 to_remove.push(header.id());
                 let header_level = header.value().name();
+                trace!("Removing section for header {header_level} {title:?}");
                 // Strip trailing nodes.
                 for sibling in header.next_siblings() {
                     if let Some(element) = sibling.value().as_element() {
                         if element.name() == header_level {
+                            trace!("Stopping removal at {}", element.name(),);
                             // TODO: Should this check for a higher level?
                             break;
                         }

src/main.rs

@@ -3,6 +3,7 @@ use std::{
     io::{stdin, stdout, BufReader, Read, Write},
     num::NonZeroUsize,
     path::PathBuf,
+    time::Instant,
 };
 
 use clap::{CommandFactory, Parser, Subcommand};
@@ -89,7 +90,18 @@ fn main() -> anyhow::Result<()> {
             let mut input = String::new();
             stdin().read_to_string(&mut input)?;
 
+            let start = Instant::now();
             let output = om_wikiparser::html::simplify(&input, &lang);
+            let stop = Instant::now();
+            let time = stop.duration_since(start);
+
+            {
+                let input_size = input.len() as isize;
+                let output_size = output.len() as isize;
+                let difference = input_size - output_size;
+                let scale = input_size as f64 / output_size as f64;
+                info!("Reduced size by {difference} bytes ({scale:.4}x) in {time:?}");
+            }
 
             stdout().write_all(output.as_bytes())?;