WIP on SLEEP read/write

1 files changed, 80 insertions, 0 deletions

diff --git a/src/bin/geniza-sleep.rs b/src/bin/geniza-sleep.rs
new file mode 100644
index 0000000..168f803
--- /dev/null
+++ b/src/bin/geniza-sleep.rs
@@ -0,0 +1,80 @@
+
+#[macro_use]
+extern crate clap;
+
+extern crate geniza;
+
+// TODO: more careful import
+use geniza::*;
+use std::path::Path;
+
+use clap::{App, SubCommand};
+
+fn run() -> Result<()> {
+ 
+    let matches = App::new("geniza-sleep")
+        .version(env!("CARGO_PKG_VERSION"))
+        .subcommand(SubCommand::with_name("info")
+            .about("Reads a SLEEP file and shows some basic metadata")
+            .arg_from_usage("<FILE> 'SLEEP file to read'"))
+        .subcommand(SubCommand::with_name("create")
+            .about("Creates an empty SLEEP file (with header)")
+            .arg_from_usage("<FILE> 'SLEEP file to write (can't exist)'")
+            .arg_from_usage("<magic> 'Magic word to use (eg, 0x5025700)'")
+            .arg_from_usage("<entry_size> 'Size of each entry (bytes)'")
+            .arg_from_usage("<algo_name> 'Name of algorithm (empty string for none)'"))
+        .get_matches();
+
+
+    match matches.subcommand() {
+        ("info", Some(subm)) => {
+            let path = Path::new(subm.value_of("FILE").unwrap());
+            let sf = SleepFile::open(path, false)?;
+            //debug!(println!("{:?}", sf));
+            println!("Magic: 0x{:X}", sf.get_magic());
+            println!("Algorithm: '{}'", sf.get_algorithm().or(Some("".to_string())).unwrap());
+            println!("Entry Size (bytes): {}", sf.get_entry_size());
+            println!("Entry count: {}", sf.length()?);
+        },
+        ("create", Some(subm)) => {
+            let path = Path::new(subm.value_of("FILE").unwrap());
+            let algo_name = subm.value_of("algo_name").unwrap();
+            let algo_name = if algo_name.len() == 0 {
+                None
+            } else {
+                Some(algo_name.to_string())
+            };
+            SleepFile::create(
+                path,
+                value_t_or_exit!(subm, "magic", u32),
+                value_t_or_exit!(subm, "entry_size", u16),
+                algo_name)?;
+            println!("Done!");
+        },
+        _ => {
+            println!("Missing or unimplemented command!");
+            println!("{}", matches.usage());
+            ::std::process::exit(-1);
+        },
+    }
+    Ok(())
+}
+
+// TODO: is there a shorter error_chain 'main()' to use here?
+fn main() {
+    if let Err(ref e) = run() {
+        println!("error: {}", e);
+
+        for e in e.iter().skip(1) {
+            println!("caused by: {}", e);
+        }
+
+        // The backtrace is not always generated. Try to run this example
+        // with `RUST_BACKTRACE=1`.
+        if let Some(backtrace) = e.backtrace() {
+            println!("backtrace: {:?}", backtrace);
+        }
+
+        ::std::process::exit(1);
+    }
+}