load plugins from a config file

Cargo.lock

@@ -1432,8 +1432,7 @@ dependencies = [
 [[package]]
 name = "deno_config"
 version = "0.39.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ce717af3fe6788dae63965d58d5637fd62be8fe4f345f189137ffc06c51837d2"
+source = "git+https://github.com/denoland/deno_config.git?branch=deno_lint_rules#13f6ff94ce36896b29c2a84386e2173bb18a036d"
 dependencies = [
  "anyhow",
  "deno_package_json",

Cargo.toml

@@ -339,3 +339,6 @@ opt-level = 3
 opt-level = 3
 [profile.release.package.zstd-sys]
 opt-level = 3
+
+[patch.crates-io]
+deno_config = { git = "https://github.com/denoland/deno_config.git", branch = "deno_lint_rules" }

cli/args/mod.rs

@@ -471,6 +471,7 @@ pub struct LintOptions {
   pub rules: LintRulesConfig,
   pub files: FilePatterns,
   pub fix: bool,
+  pub plugins: Vec<String>,
 }
 
 impl Default for LintOptions {
@@ -485,6 +486,7 @@ impl LintOptions {
       rules: Default::default(),
       files: FilePatterns::new_with_base(base),
       fix: false,
+      plugins: vec![],
     }
   }
 
@@ -498,6 +500,13 @@ impl LintOptions {
         lint_flags.maybe_rules_exclude.clone(),
       ),
       fix: lint_flags.fix,
+      plugins: if !lint_config.options.plugins.is_empty() {
+        lint_config.options.plugins.clone()
+      } else if let Some(plugins) = lint_flags.maybe_plugins.as_ref() {
+        plugins.clone()
+      } else {
+        vec![]
+      },
     }
   }
 }

cli/tools/lint/mod.rs

@@ -295,6 +295,15 @@ impl WorkspaceLinter {
         ))
       });
 
+    let maybe_plugins = if maybe_plugins.is_some() {
+      maybe_plugins
+    } else {
+      if lint_options.plugins.is_empty() {
+        None
+      } else {
+        Some(lint_options.plugins.clone())
+      }
+    };
     let plugin_specifiers = if let Some(plugins) = maybe_plugins {
       let mut plugin_specifiers = Vec::with_capacity(plugins.len());
       let cwd = cli_options.initial_cwd();

deno.json

@@ -0,0 +1,7 @@
+{
+  "lint": {
+    "plugins": [
+      "./plugin.js"
+    ]
+  }
+}