Add unfinished path command

brood/src/commands.rs

@@ -1,5 +1,7 @@
 mod ingest;
+mod path;
 mod reexport;
 
 pub use ingest::ingest;
+pub use path::path;
 pub use reexport::reexport;

brood/src/commands/path.rs

@@ -0,0 +1,33 @@
+use std::fs::File;
+use std::io::{self, BufReader};
+use std::path::Path;
+
+use crate::data::AdjacencyList;
+use crate::util;
+
+pub fn path(datafile: &Path, from: &str, to: &str) -> io::Result<()> {
+    eprintln!(">> Import");
+    let mut databuf = BufReader::new(File::open(datafile)?);
+    let mut data = AdjacencyList::read(&mut databuf)?.change_page_data(f32::INFINITY);
+
+    eprintln!(">> Locate from and to");
+    let from = util::normalize_link(from);
+    let to = util::normalize_link(to);
+    let (from_i, from_p) = data
+        .pages
+        .iter()
+        .enumerate()
+        .filter(|(_, p)| !p.redirect)
+        .find(|(_, p)| util::normalize_link(&p.title) == from)
+        .unwrap_or_else(|| panic!("no article called {from}"));
+    let (to_i, to_p) = data
+        .pages
+        .iter()
+        .enumerate()
+        .filter(|(_, p)| !p.redirect)
+        .find(|(_, p)| util::normalize_link(&p.title) == to)
+        .unwrap_or_else(|| panic!("no article called {to}"));
+    dbg!(from_i, from_p, to_i, to_p);
+
+    Ok(())
+}

brood/src/main.rs

@@ -13,6 +13,8 @@ enum Command {
     Ingest,
     /// Read and reexport brood data.
     Reexport { to: PathBuf },
+    /// Find a path from one article to another.
+    Path { from: String, to: String },
 }
 
 #[derive(Debug, Parser)]
@@ -27,5 +29,6 @@ fn main() -> io::Result<()> {
     match args.command {
         Command::Ingest => commands::ingest(&args.datafile),
         Command::Reexport { to } => commands::reexport(&args.datafile, &to),
+        Command::Path { from, to } => commands::path(&args.datafile, &from, &to),
     }
 }