From 31d0e05dfd7d4a4a3c2dd7a2ac2e01c13902f3d7 Mon Sep 17 00:00:00 2001
From: Aneurin Barker Snook <aneurin@aneur.in>
Date: Mon, 30 Mar 2026 21:51:48 +0100
Subject: [PATCH] add readme

---
 README.md       | 19 +++++++++++++++++++
 internal/cli.go |  4 ++--
 internal/csv.go |  2 ++
 main.go         |  7 +------
 4 files changed, 24 insertions(+), 8 deletions(-)
 create mode 100644 README.md

diff --git a/README.md b/README.md
new file mode 100644
index 0000000..b9db8a4
--- /dev/null
+++ b/README.md
@@ -0,0 +1,19 @@
+# Ultrashorty
+
+Really simple HTTP redirection using a CSV file.
+
+## Usage
+
+Create a CSV file with the following headings and add in as many redirects as you like:
+
+```csv
+From,To,Status Code
+```
+
+Start Ultrashorty:
+
+```sh
+ultrashorty /path/to/redirects.csv
+```
+
+To load changes to the CSV, just stop and restart Ultrashorty.
diff --git a/internal/cli.go b/internal/cli.go
index 6045b6a..e56bb96 100644
--- a/internal/cli.go
+++ b/internal/cli.go
@@ -2,6 +2,6 @@ package internal
 
 type CLI struct {
 	File string `arg:"" name:"file" short:"f" help:"Path to CSV redirects file." type:"path"`
-	Host string `name:"host" help:"HTTP listen host." default:"${host}"`
-	Port string `name:"port" short:"p" help:"HTTP listen port." default:"${port}"`
+	Host string `name:"host" help:"HTTP listen host." default:"localhost"`
+	Port string `name:"port" short:"p" help:"HTTP listen port." default:"4000"`
 }
diff --git a/internal/csv.go b/internal/csv.go
index d22ea45..d2b5877 100644
--- a/internal/csv.go
+++ b/internal/csv.go
@@ -41,7 +41,9 @@ func ReadCsvRedirects(file string) (Redirects, error) {
 		return nil, errors.New("CSV must contain From, To, and Status Code headings")
 	}
 
+	// Read data
 	redirects := Redirects{}
+
 	for {
 		row, err := csvReader.Read()
 		if err != nil {
diff --git a/main.go b/main.go
index 09e4b1f..88aae22 100644
--- a/main.go
+++ b/main.go
@@ -10,13 +10,8 @@ import (
 )
 
 func main() {
-	vars := kong.Vars{
-		"host": "localhost",
-		"port": "4000",
-	}
-
 	cli := &internal.CLI{}
-	kong.Parse(cli, vars)
+	kong.Parse(cli, kong.Name("ultrashorty"), kong.Description("Really simple HTTP redirection using a CSV file."))
 
 	redirects, err := internal.ReadCsvRedirects(cli.File)
 	if err != nil {