Add list-pages command

brood/src/commands.rs

@@ -1,7 +1,4 @@
-mod ingest;
-mod path;
-mod reexport;
-
-pub use ingest::ingest;
-pub use path::path;
-pub use reexport::reexport;
+pub mod ingest;
+pub mod list_pages;
+pub mod path;
+pub mod reexport;

brood/src/commands/list_pages.rs

@@ -0,0 +1,23 @@
+use std::fs::File;
+use std::io::{self, BufReader};
+use std::path::Path;
+
+use crate::data::AdjacencyList;
+
+pub fn run(datafile: &Path) -> io::Result<()> {
+    let mut databuf = BufReader::new(File::open(datafile)?);
+    let data = AdjacencyList::read(&mut databuf)?;
+
+    for (page_idx, page) in data.pages.iter().enumerate() {
+        if page.data.redirect {
+            for link_idx in data.link_range(page_idx as u32) {
+                let target_page = data.page(data.link(link_idx).to);
+                println!("{:?} -> {:?}", page.data.title, target_page.data.title);
+            }
+        } else {
+            println!("{:?}", page.data.title);
+        }
+    }
+
+    Ok(())
+}

brood/src/main.rs

@@ -12,9 +12,16 @@ enum Command {
     /// Read sift data on stdin and output brood data.
     Ingest,
     /// Read and reexport brood data.
-    Reexport { to: PathBuf },
+    Reexport {
+        to: PathBuf,
+    },
     /// Find a path from one article to another.
-    Path { from: String, to: String },
+    Path {
+        from: String,
+        to: String,
+    },
+    // Print all page titles.
+    ListPages,
 }
 
 #[derive(Debug, Parser)]
@@ -27,8 +34,9 @@ struct Args {
 fn main() -> io::Result<()> {
     let args = Args::parse();
     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),
+        Command::Ingest => commands::ingest::ingest(&args.datafile),
+        Command::Reexport { to } => commands::reexport::reexport(&args.datafile, &to),
+        Command::Path { from, to } => commands::path::path(&args.datafile, &from, &to),
+        Command::ListPages => commands::list_pages::run(&args.datafile),
     }
 }