From 46654f8c5ae33ddbb994a8e36e41b06d3a31f032 Mon Sep 17 00:00:00 2001
From: RunasSudo <runassudo@yingtongli.me>
Date: Sun, 17 Oct 2021 16:32:35 +1100
Subject: [PATCH] Implement --omit-informal for `opentally convert`

---
 src/cli/convert.rs | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/cli/convert.rs b/src/cli/convert.rs
index 64974ad..17901f0 100644
--- a/src/cli/convert.rs
+++ b/src/cli/convert.rs
@@ -56,9 +56,13 @@ pub struct SubcmdOptions {
 	#[clap(help_heading=Some("PREFERENCE VALIDATION"), long)]
 	require_sequential: bool,
 	
-	/// Require strict ordering of preferences
+	/// Require strict ordering of preferences (disallow equal rankings)
 	#[clap(help_heading=Some("PREFERENCE VALIDATION"), long)]
 	require_strict_order: bool,
+	
+	/// Do not output wholly informal ballots
+	#[clap(help_heading=Some("PREFERENCE VALIDATION"), long)]
+	omit_informal: bool,
 }
 
 /// Entrypoint for subcommand
@@ -126,6 +130,11 @@ pub fn main(mut cmd_opts: SubcmdOptions) -> Result<(), i32> {
 		}
 	}
 	
+	if cmd_opts.omit_informal {
+		// Remove wholly informal ballots from output
+		election.ballots.retain(|b| !b.preferences.is_empty());
+	}
+	
 	// Write output file
 	let output = File::create(cmd_opts.outfile).expect("IO Error");