feat: conditional suggestions

README.md

@@ -48,8 +48,10 @@ suggest = "{{command[0]}} fix {{command[2:]}}"
 pattern = [
 	"pattern 1",
 ]
-# this will add a `sudo` before the command, without touching the rest
-suggest = "sudo {{command}}"
+# this will add a `sudo` before the command if the `sudo` is found by `which`
+suggest = '''
+#[executable(sudo)]
+sudo {{command}}'''
 ```
 
 The placeholder is evaluated as following:

rule_parser/src/lib.rs

@@ -20,7 +20,7 @@ struct Rule {
 #[derive(serde::Deserialize)]
 struct MatchOutput {
 	pattern: Vec<String>,
-	suggest: String,
+	suggest: Vec<String>,
 }
 
 fn get_rules(directory: String) -> Vec<Rule> {
@@ -51,9 +51,9 @@ fn gen_string_hashmap(rules: Vec<Rule>) -> String {
 				.collect::<Vec<String>>();
 			let suggest = match_output.suggest;
 			string_hashmap.push_str(&format!(
-				"(vec![\"{}\"], \"{}\"),",
+				"(vec![\"{}\"], vec![\"{}\"]),",
 				pattern.join("\", \""),
-				suggest
+				suggest.join("\", \"")
 			));
 		}
 		string_hashmap.push_str("]),");

rules/sudo-doas.toml

@@ -27,4 +27,11 @@ pattern = [
 	"you don't have access to the history db.",
 	"you don't have write permissions",
 ]
-suggest = 'sudo {{command}}'
+suggest = [
+'''
+#[executable(sudo)]
+sudo {{command}}''',
+'''
+#[executable(doas)]
+doas {{command}}''',
+]

src/corrections.rs

@@ -39,7 +39,11 @@ fn match_pattern(command: &str, error_msg: &str) -> Option<String> {
 		for (pattern, suggest) in suggest {
 			for pattern in pattern {
 				if error_msg.contains(pattern) {
-					return Some(suggest.to_owned().to_string());
+					for suggest in suggest {
+						if let Some(suggest) = check_suggest(suggest) {
+							return Some(suggest);
+						}
+					}
 				}
 			}
 		}
@@ -49,6 +53,39 @@ fn match_pattern(command: &str, error_msg: &str) -> Option<String> {
 	}
 }
 
+fn check_suggest(suggest: &str) -> Option<String> {
+	if !suggest.starts_with('#') {
+		return Some(suggest.to_owned());
+	}
+	let lines = suggest.lines().collect::<Vec<&str>>();
+	let conditions = lines.first().unwrap();
+	let conditions = conditions.trim_matches(|c| c == '#' || c == '[' || c == ']');
+	let conditions = conditions.split(',').collect::<Vec<&str>>();
+	for condition in conditions {
+		let condition = condition.trim();
+		let (condition, arg) = condition.split_once('(').unwrap();
+		let arg = arg.trim_matches(|c| c == '(' || c == ')');
+
+		if eval_condition(condition, arg) == false {
+			return None;
+		}
+	}
+	Some(lines[1..].join("\n"))
+}
+
+fn eval_condition(condition: &str, arg: &str) -> bool {
+	match condition {
+		"executable" => {
+			let output = std::process::Command::new("which")
+				.arg(arg)
+				.output()
+				.expect("failed to execute process");
+			output.status.success()
+		}
+		_ => false,
+	}
+}
+
 fn eval_suggest(suggest: &str, last_command: &str) -> String {
 	let mut suggest = suggest.to_owned();
 	if suggest.contains("{{command}}") {
@@ -95,7 +132,6 @@ pub fn confirm_correction(shell: &str, command: &str, last_command: &str) {
 	for p in PRIVILEGE_LIST {
 		if command.starts_with(p) {
 			let command = command.replace(p, "");
-			println!("{} {}", p, command);
 			std::process::Command::new(p.trim())
 				.arg(shell)
 				.arg("-c")

src/main.rs

@@ -2,8 +2,6 @@ mod corrections;
 mod shell;
 mod style;
 
-use shell::get_privilege;
-
 fn main() {
 	std::env::set_var("LC_ALL", "C");
 
@@ -11,15 +9,7 @@ fn main() {
 	let last_command = shell::find_last_command(&shell);
 	let corrected_command = corrections::correct_command(&shell, &last_command);
 
-	if let Some(mut corrected_command) = corrected_command {
-		if corrected_command.starts_with("sudo ") {
-			let privilege = get_privilege();
-			if let Some(privilege) = privilege {
-				if privilege != "sudo" {
-					corrected_command = corrected_command.replacen("sudo", &privilege, 1);
-				}
-			}
-		}
+	if let Some(corrected_command) = corrected_command {
 		corrections::confirm_correction(&shell, &corrected_command, &last_command);
 	} else {
 		println!(