feat: Add env_logger backend

Cargo.toml

@@ -13,6 +13,7 @@ edition = "2021"
 [dependencies]
 anyhow = "1.0"
 clap = { version = "4.3", features = ["derive"] }
+env_logger = "0.10"
 flate2 = "1.0"
 log = "0.4"
 regex = "1.9"

src/main.rs

@@ -82,18 +82,18 @@ fn gen_shell(
 }
 
 fn main() -> Result<()> {
+  env_logger::init();
+
   let args = CLI::parse();
 
   let mut cfg = ManParseConfig::new()
     .exclude_dirs(args.dirs_exclude.unwrap_or_default())
     .exclude_sections(args.sections_exclude)
-    .exclude_commands(args.exclude_cmds);
+    .exclude_commands(args.exclude_cmds)
+    .search_subcommands(args.search_subcommands);
   if let Some(cmds) = args.cmds {
     cfg = cfg.restrict_to_commands(cmds);
   }
-  if args.search_subcommands {
-    cfg = cfg.search_subcommands();
-  }
 
   let res = cfg.parse()?;
   gen_shell(args.shell, res, &args.out)?;

src/parse/mod.rs

@@ -2,7 +2,7 @@ mod type1;
 
 use anyhow::{anyhow, Result};
 use flate2::bufread::GzDecoder;
-use log::{debug, error, warn};
+use log::{debug, error, trace, warn};
 use regex::Regex;
 use std::{
   collections::{HashMap, HashSet},
@@ -85,9 +85,9 @@ impl ManParseConfig {
     Ok(self)
   }
 
-  /// Search for subcommands (off by default)
-  pub fn search_subcommands(mut self) -> Self {
-    self.search_subcommands = true;
+  /// Whether to search for subcommands (false by default)
+  pub fn search_subcommands(mut self, search: bool) -> Self {
+    self.search_subcommands = search;
     self
   }
 
@@ -191,9 +191,10 @@ fn parse_all_manpages(
 
   for (cmd, manpage) in manpages {
     if let Ok(text) = read_manpage(&manpage) {
-      let cmd_name = get_cmd_name(manpage.as_ref());
+      let cmd_name = get_cmd_name(&manpage);
       match parse_manpage_text(&cmd_name, &text) {
         Some(parsed) => {
+          trace!("Parsing man page for {} at {}", cmd_name, manpage.display());
           // todo merge subcommands later instead
           res.insert(
             cmd_name,

src/parse/type1.rs

@@ -83,7 +83,11 @@ fn make_arg(options: &str, desc: &str) -> Option<Arg> {
   }
 
   if forms.is_empty() {
-    debug!("No options found in {}", options);
+    debug!(
+      "No options found in '{}', desc: {}",
+      options.trim(),
+      &desc.trim()[..40]
+    );
     return None;
   }