improve error handling

Fixes #4

src/main.rs

@@ -140,6 +140,11 @@ fn publish() -> Result<(), Box<dyn std::error::Error>> {
             let post = fs::read_to_string(format!("{}/{}", dirpath, &filename))?;
             let post_lines: Vec<&str> = post.lines().collect();
             let title = post_lines[0].strip_prefix("# ");
+            if title.is_none() {
+                println!("ABORTING: Your latest post does not have a title.");
+                println!("Use a '# Heading' on the first line.");
+                return Ok(())
+            }
             let entry_string = format!("=> {} {} ({})", filename, sliced, title.unwrap());
             let home_entry_string = format!("=> /{}/{} {} ({})", &year, filename, sliced, title.unwrap());
             if let Ok(index) = fs::read_to_string(&indexfilepath) {
@@ -279,21 +284,26 @@ fn sync(args: &Vec<String>) -> Result<(), Box<dyn std::error::Error>> {
     }
 }
 
-fn write() -> Result<(), Box<dyn std::error::Error>> {
-    println!("Checking server for latest post...");
+fn write(args: &Vec<String>) -> Result<(), Box<dyn std::error::Error>> {
+
     let config = read_config()?;
     let dt = Local::now();
     let year = &dt.format("%Y").to_string();
     let local_dir: std::path::PathBuf = expanduser(&config.local_dir)?;
-    let remote_dir: std::path::PathBuf = expanduser(&config.remote_dir)?;
     fs::create_dir_all(format!("{}{}", &local_dir.display(), &year))?;
     let filepath = format!("{}{}/{}.gmi", local_dir.display(), year, dt.format("%Y-%m-%d"));
+
+    match args.len() {
+        2 => {
+                let remote_dir: std::path::PathBuf = expanduser(&config.remote_dir)?;
                 let spath = format!("{}", remote_dir.display());
                 let remote_vec = spath.split(':').collect::<Vec<_>>();
                 let server_name = remote_vec[0];
                 let server_path = remote_vec[1];
                 let remote_filepath = format!("{}{}/{}.gmi", server_path, year, dt.format("%Y-%m-%d"));
                 let cmd = format!("[[ -f {} ]] && echo 'true' || echo 'false';", &remote_filepath);
+
+                println!("Checking server for latest post...");
                 let check = Command::new("ssh")
                         .args(["-q", &server_name, &cmd])
                         .stdout(Stdio::piped())
@@ -308,7 +318,8 @@ fn write() -> Result<(), Box<dyn std::error::Error>> {
                     "true" => {
                     // user has already published today
                     println!("\x1B[1;31mYou have already published today!\x1B[0m");
-            println!("To edit your post, run 'sync down' first.");
+                    println!("To edit a post published with soyuz-web, run 'soyuz sync down' first.");
+                    println!("To edit a published post already saved locally, use 'soyuz write --edit'");
                     Ok(())
                     },
                     "false" => {
@@ -321,11 +332,27 @@ fn write() -> Result<(), Box<dyn std::error::Error>> {
                     Ok(())
                     }
                 }
+        },
+        3 => {
+            match args[2].as_str() {
+                "--edit" => Ok(open_file(filepath.into())),
+                _ => {
+                    println!("Unknown command. Try 'soyuz help'.");
+                    Ok(())
+                }
+            }
+        },
+        _ => {
+            println!("Unknown command. Try 'soyuz help'.");
+            Ok(())
+        }
+    }
+
 }
 
 fn match_single_arg(args: &Vec<String>) -> Result<(), Box<dyn std::error::Error>> {
   match args[1].as_str() {
-        "write" => write(),
+        "write" => write(args),
         "settings" => settings(),
         "publish" => publish(),
         "sync" => sync(args),
@@ -338,7 +365,13 @@ fn main() -> Result<(), Box<dyn std::error::Error>>{
     match &args.len() {
         1 => Ok(help()),
         2 => match_single_arg(&args),
-        3 | 4  => sync(&args),
+        3 | 4  => {
+            match args[1].as_str() {
+                "sync" => sync(&args),
+                "write" => write(&args),
+                &_ => Ok(help())
+            }
+        },
         _ => Ok(help())
     }
 }