Add language list command to CLI

Author: zharinov

Cargo.lock

@@ -3,7 +3,62 @@ name = "plotnik-cli"
 version = "0.1.0"
 edition = "2024"
 
+[features]
+default = [
+    "bash",
+    "c",
+    "cpp",
+    "csharp",
+    "css",
+    "elixir",
+    "go",
+    "haskell",
+    "hcl",
+    "html",
+    "java",
+    "javascript",
+    "json",
+    "kotlin",
+    "lua",
+    "nix",
+    "php",
+    "python",
+    "ruby",
+    "rust",
+    "scala",
+    "solidity",
+    "swift",
+    "typescript",
+    "yaml",
+]
+bash = ["plotnik-langs/bash"]
+c = ["plotnik-langs/c"]
+cpp = ["plotnik-langs/cpp"]
+csharp = ["plotnik-langs/csharp"]
+css = ["plotnik-langs/css"]
+elixir = ["plotnik-langs/elixir"]
+go = ["plotnik-langs/go"]
+haskell = ["plotnik-langs/haskell"]
+hcl = ["plotnik-langs/hcl"]
+html = ["plotnik-langs/html"]
+java = ["plotnik-langs/java"]
+javascript = ["plotnik-langs/javascript"]
+json = ["plotnik-langs/json"]
+kotlin = ["plotnik-langs/kotlin"]
+lua = ["plotnik-langs/lua"]
+nix = ["plotnik-langs/nix"]
+php = ["plotnik-langs/php"]
+python = ["plotnik-langs/python"]
+ruby = ["plotnik-langs/ruby"]
+rust = ["plotnik-langs/rust"]
+scala = ["plotnik-langs/scala"]
+solidity = ["plotnik-langs/solidity"]
+swift = ["plotnik-langs/swift"]
+typescript = ["plotnik-langs/typescript"]
+yaml = ["plotnik-langs/yaml"]
+
 [dependencies]
 clap = { version = "4.5.51", features = ["derive"] }
+plotnik-langs = { path = "../plotnik-langs", default-features = false }
 plotnik-lib = { path = "../plotnik-lib" }
-rowan = "0.16"
+rowan = "0.16"

crates/plotnik-cli/Cargo.toml

@@ -1,4 +1,5 @@
 use clap::{Args, Parser, Subcommand};
+use plotnik_langs::Lang;
 use plotnik_lib::Query;
 use std::fs;
 use std::io::{self, Read};
@@ -61,6 +62,9 @@ EXAMPLES:
         /// Topic to display (e.g., "reference", "examples")
         topic: Option<String>,
     },
+
+    /// List supported languages
+    Langs,
 }
 
 #[derive(Args)]
@@ -133,6 +137,17 @@ fn main() {
         } => {
             run_debug(query, source, lang, output);
         }
+        Command::Langs => {
+            list_langs();
+        }
+    }
+}
+
+fn list_langs() {
+    let langs = Lang::all();
+    println!("Supported languages ({}):", langs.len());
+    for lang in langs {
+        println!("  {}", lang.name());
     }
 }
 

crates/plotnik-cli/src/main.rs

@@ -236,6 +236,63 @@ impl Lang {
         }
     }
 
+    pub fn all() -> &'static [Self] {
+        &[
+            #[cfg(feature = "bash")]
+            Self::Bash,
+            #[cfg(feature = "c")]
+            Self::C,
+            #[cfg(feature = "cpp")]
+            Self::Cpp,
+            #[cfg(feature = "csharp")]
+            Self::CSharp,
+            #[cfg(feature = "css")]
+            Self::Css,
+            #[cfg(feature = "elixir")]
+            Self::Elixir,
+            #[cfg(feature = "go")]
+            Self::Go,
+            #[cfg(feature = "haskell")]
+            Self::Haskell,
+            #[cfg(feature = "hcl")]
+            Self::Hcl,
+            #[cfg(feature = "html")]
+            Self::Html,
+            #[cfg(feature = "java")]
+            Self::Java,
+            #[cfg(feature = "javascript")]
+            Self::JavaScript,
+            #[cfg(feature = "json")]
+            Self::Json,
+            #[cfg(feature = "kotlin")]
+            Self::Kotlin,
+            #[cfg(feature = "lua")]
+            Self::Lua,
+            #[cfg(feature = "nix")]
+            Self::Nix,
+            #[cfg(feature = "php")]
+            Self::Php,
+            #[cfg(feature = "python")]
+            Self::Python,
+            #[cfg(feature = "ruby")]
+            Self::Ruby,
+            #[cfg(feature = "rust")]
+            Self::Rust,
+            #[cfg(feature = "scala")]
+            Self::Scala,
+            #[cfg(feature = "solidity")]
+            Self::Solidity,
+            #[cfg(feature = "swift")]
+            Self::Swift,
+            #[cfg(feature = "typescript")]
+            Self::TypeScript,
+            #[cfg(feature = "typescript")]
+            Self::Tsx,
+            #[cfg(feature = "yaml")]
+            Self::Yaml,
+        ]
+    }
+
     pub fn name(&self) -> &'static str {
         match self {
             #[cfg(feature = "bash")]