Merge pull request #90 from DeterminateSystems/elixir-init

Add Elixir detection

src/cli/cmd/init/handlers/elixir.rs

@@ -0,0 +1,22 @@
+use crate::cli::cmd::init::{project::Project, prompt::Prompt};
+
+use super::{Flake, Handler};
+
+const ELIXIR_LATEST: &str = "elixir_1_15";
+const ERLANG_LATEST: &str = "erlang_26";
+
+pub(crate) struct Elixir;
+
+impl Handler for Elixir {
+    fn handle(project: &Project, flake: &mut Flake) {
+        if project.has_file("mix.exs") && Prompt::for_language("Elixir") {
+            flake.dev_shell_packages.push(String::from(ELIXIR_LATEST));
+            flake.dev_shell_packages.push(String::from("elixir_ls"));
+            flake.dev_shell_packages.push(String::from(ERLANG_LATEST));
+
+            if Prompt::bool("Would you like to add Livebook to the environment?") {
+                flake.dev_shell_packages.push(String::from("livebook"));
+            }
+        }
+    }
+}

src/cli/cmd/init/handlers/elm.rs

@@ -1,11 +1,11 @@
 use crate::cli::cmd::init::{project::Project, prompt::Prompt};
 
-use super::Handler;
+use super::{Flake, Handler};
 
 pub(crate) struct Elm;
 
 impl Handler for Elm {
-    fn handle(project: &Project, flake: &mut super::Flake) {
+    fn handle(project: &Project, flake: &mut Flake) {
         if project.has_file("elm.json") && Prompt::for_language("Elm") {
             flake
                 .dev_shell_packages

src/cli/cmd/init/handlers/mod.rs

@@ -1,6 +1,7 @@
 use serde::Serialize;
 use std::collections::HashMap;
 
+pub(crate) mod elixir;
 pub(crate) mod elm;
 pub(crate) mod go;
 pub(crate) mod java;
@@ -13,6 +14,7 @@ pub(crate) mod system;
 pub(crate) mod tools;
 pub(crate) mod zig;
 
+pub(crate) use elixir::Elixir;
 pub(crate) use elm::Elm;
 pub(crate) use go::Go;
 pub(crate) use java::Java;

src/cli/cmd/init/mod.rs

@@ -22,7 +22,8 @@ use super::FlakeHubClient;
 use self::{
     dev_shell::DevShell,
     handlers::{
-        Flake, Go, Handler, Input, Java, JavaScript, Php, Python, Ruby, Rust, System, Tools, Zig,
+        Elixir, Flake, Go, Handler, Input, Java, JavaScript, Php, Python, Ruby, Rust, System,
+        Tools, Zig,
     },
     project::Project,
     template::TemplateData,
@@ -137,6 +138,7 @@ impl CommandExecute for InitSubcommand {
             );
 
             // Languages
+            Elixir::handle(&project, &mut flake);
             Elm::handle(&project, &mut flake);
             Go::handle(&project, &mut flake);
             Java::handle(&project, &mut flake);