From 275d6256bb4e14be9afdc9e50eaa18cd06285589 Mon Sep 17 00:00:00 2001
From: camc314 <18101008+camc314@users.noreply.github.com>
Date: Mon, 2 Dec 2024 03:17:56 +0000
Subject: [PATCH] feat(linter): output rules to json array (#7574)

closes #7517

cc @Sysix
---
 apps/oxlint/src/lint.rs      |  6 +++++-
 crates/oxc_linter/src/lib.rs | 25 +++++++++++++++++++++++++
 2 files changed, 30 insertions(+), 1 deletion(-)

diff --git a/apps/oxlint/src/lint.rs b/apps/oxlint/src/lint.rs
index f5649f919..70d3f70b4 100644
--- a/apps/oxlint/src/lint.rs
+++ b/apps/oxlint/src/lint.rs
@@ -36,7 +36,11 @@ impl Runner for LintRunner {
     fn run(self) -> CliRunResult {
         if self.options.list_rules {
             let mut stdout = BufWriter::new(std::io::stdout());
-            Linter::print_rules(&mut stdout);
+            if self.options.output_options.format == OutputFormat::Json {
+                Linter::print_rules_json(&mut stdout);
+            } else {
+                Linter::print_rules(&mut stdout);
+            }
             return CliRunResult::None;
         }
 
diff --git a/crates/oxc_linter/src/lib.rs b/crates/oxc_linter/src/lib.rs
index 03a89a6e3..fa42f867c 100644
--- a/crates/oxc_linter/src/lib.rs
+++ b/crates/oxc_linter/src/lib.rs
@@ -26,6 +26,7 @@ pub mod table;
 use std::{io::Write, path::Path, rc::Rc, sync::Arc};
 
 use oxc_semantic::{AstNode, Semantic};
+use rules::RULES;
 
 pub use crate::{
     builder::{LinterBuilder, LinterBuilderError},
@@ -211,6 +212,30 @@ impl Linter {
         writeln!(writer, "Default: {}", table.turned_on_by_default_count).unwrap();
         writeln!(writer, "Total: {}", table.total).unwrap();
     }
+
+    /// # Panics
+    pub fn print_rules_json<W: Write>(writer: &mut W) {
+        #[derive(Debug, serde::Serialize)]
+        struct RuleInfoJson<'a> {
+            scope: &'a str,
+            value: &'a str,
+            category: RuleCategory,
+        }
+
+        let rules_info = RULES.iter().map(|rule| RuleInfoJson {
+            scope: rule.plugin_name(),
+            value: rule.name(),
+            category: rule.category(),
+        });
+
+        writer
+            .write_all(
+                serde_json::to_string_pretty(&rules_info.collect::<Vec<_>>())
+                    .expect("Failed to serialize")
+                    .as_bytes(),
+            )
+            .unwrap();
+    }
 }
 
 #[cfg(test)]