fix: config file completion completing files

src/cli.rs

@@ -1,9 +1,12 @@
+use clap::ValueHint;
+
 #[derive(clap::Parser)]
 #[clap(author, version)]
 /// Pings configured hosts in a configurable intervals and exposes metrics for prometheus.
 pub struct Cli {
     /// Set config file
-    pub config: String,
+    #[clap(value_hint = ValueHint::FilePath)]
+    pub config: std::path::PathBuf,
     #[clap(short, long, parse(from_occurrences))]
     /// Be verbose (you can add this up to 4 times for more logs).
     /// By default, only errors are logged, so no output is a good thing.

src/config.rs

@@ -103,7 +103,7 @@ fn setup_fern(level: log::LevelFilter) {
     }
 }
 
-fn read_config(path: &str) -> Result<Config> {
+fn read_config(path: &std::path::Path) -> Result<Config> {
     let config_file_content = std::fs::read_to_string(path).context("Couldn't read config file")?;
     toml::from_str(&config_file_content).context("Couldn't parse config file")
 }