From d27d5e9094f0f5916266e0460ff0877ef330bd2d Mon Sep 17 00:00:00 2001
From: Federico Igne <git@federicoigne.com>
Date: Fri, 30 Dec 2022 16:14:19 +0000
Subject: feat(list): add flag to list valid entry points

---
 src/main.rs | 25 ++++++++++++++++---------
 1 file changed, 16 insertions(+), 9 deletions(-)

(limited to 'src')

diff --git a/src/main.rs b/src/main.rs
index 1d6bdd4..acb08ad 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -17,14 +17,17 @@ const BASE: &str = "./";
 #[derive(Parser, Debug)]
 #[clap(author, version, about, long_about = None)]
 struct Config {
+  /// Simply list entry points and exit
+  #[clap(short, long)]
+  list: bool,
   /// Maximum substitution depth
-  #[clap(short, long, default_value_t = 10)]
+  #[clap(short, long, default_value_t = 10, value_name = "N")]
   depth: u32,
   /// Base output directory [default: './']
-  #[clap(short, long)]
+  #[clap(short, long, value_name = "PATH")]
   output: Option<PathBuf>,
-  /// Target files prefix
-  #[clap(short, long)]
+  /// Limit entry points to those matching the provided prefix
+  #[clap(short, long, value_name = "PREFIX")]
   target: Option<PathBuf>,
   /// Input files
   input: Vec<PathBuf>,
@@ -122,10 +125,7 @@ fn write_to_file(
     fs::create_dir_all(path.parent().unwrap())?;
     fs::write(path, content)?;
   } else { 
-    eprintln!(
-      "Absolute paths not supported: {}",
-      path.to_string_lossy()
-    )
+    eprintln!("Absolute paths not supported: {}", path.display())
   }
   Ok(())
 }
@@ -186,7 +186,14 @@ fn main() -> Result<()> {
             }
           }
         );
-        build(&config.output, &blocks, config.depth);
+        if config.list {
+          blocks.keys().for_each(|k| match k {
+            Key::Entry(s) => println!("{}", s.display()),
+            Key::Macro(_) => {}
+          });
+        } else {
+          build(&config.output, &blocks, config.depth);
+        }
         pandoc
       }
     )
-- 
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