From fdb4c7564d00a2442ff89816469d0e225f5b5c8d Mon Sep 17 00:00:00 2001
From: Endercheif <reet22singh@gmail.com>
Date: Fri, 29 Dec 2023 15:32:32 -0800
Subject: [PATCH] feat: quick cli for bundle and serve

---
 README.md                  | 24 +++++++++++++++++-------
 gleam.toml                 |  4 +++-
 src/esgleam/bundle.gleam   |  9 +++++++++
 src/esgleam/internal.gleam | 21 +++++++++++++++++++++
 src/esgleam/serve.gleam    | 10 ++++++++++
 5 files changed, 60 insertions(+), 8 deletions(-)
 create mode 100644 src/esgleam/bundle.gleam
 create mode 100644 src/esgleam/serve.gleam

diff --git a/README.md b/README.md
index 4719266..874d0a2 100644
--- a/README.md
+++ b/README.md
@@ -7,13 +7,28 @@
 
 ## Quick start
 
-1. Create a Gleam project as you would normally.
+1. Create a Gleam project as you would normally and make sure you have a file in `src` with the name of your project (as specified in `gleam.toml`)
 
 2. Install `esbuild`
 ```sh
 $ gleam run -m esgleam/install
 ```
 
+3.
+```sh
+$ gleam run -m esgleam/bundle
+```
+See `/dist` for your bundled code
+
+4. To start a development server
+```sh
+$ gleam run -m esgleam/serve
+```
+
+## Advanced Usage
+
+(Follow steps 1-2)
+
 3. Create `/src/build.gleam` with the following
 ```gleam
 import esgleam
@@ -27,12 +42,7 @@ pub fn main() {
 }
 ```
 
-4. Build for JavaScript
-```sh
-$ gleam build --target=javascript
-```
-
-5. Run your build script (in any target)
+5. Run your build script
 ```sh
 $ gleam run -m build
 ```
diff --git a/gleam.toml b/gleam.toml
index 4a1797a..551f92e 100644
--- a/gleam.toml
+++ b/gleam.toml
@@ -1,5 +1,5 @@
 name = "esgleam"
-version = "0.1.0"
+version = "0.2.0"
 gleam = ">= 0.32.0"
 
 description = "esbuild for Gleam"
@@ -7,6 +7,8 @@ licences = ["Apache-2.0"]
 repository = { type = "github", user = "Enderchief", repo = "esgleam" }
 # links = [{ title = "Website", href = "https://gleam.run" }]
 
+target = "javascript"
+
 [dependencies]
 gleam_stdlib = "~> 0.34"
 simplifile = "~> 1.1"
diff --git a/src/esgleam/bundle.gleam b/src/esgleam/bundle.gleam
new file mode 100644
index 0000000..88508df
--- /dev/null
+++ b/src/esgleam/bundle.gleam
@@ -0,0 +1,9 @@
+import esgleam
+import esgleam/internal
+
+/// Bundles using ESM to the `./dist` directory.
+pub fn main() {
+  esgleam.new(outdir: "./dist")
+  |> esgleam.entry(internal.get_project_name() <> ".gleam")
+  |> esgleam.bundle
+}
diff --git a/src/esgleam/internal.gleam b/src/esgleam/internal.gleam
index 8054117..08ed8e3 100644
--- a/src/esgleam/internal.gleam
+++ b/src/esgleam/internal.gleam
@@ -1,3 +1,8 @@
+import gleam/regex
+import gleam/result
+import gleam/list
+import gleam/option.{type Option, Some}
+import simplifile
 @target(javascript)
 import gleam/string
 
@@ -34,3 +39,19 @@ pub fn exec_shell(command: String, cwd: String) -> Nil {
   |> os_cmd
   Nil
 }
+
+pub fn get_project_name() -> String {
+  let assert Ok(project_name) =
+    simplifile.read("./gleam.toml")
+    |> result.map(with: fn(file) {
+      let assert Ok(re) = regex.from_string("name *= *\"(\\w[\\w_]*)\"")
+      let assert Ok(match) =
+        regex.scan(re, file)
+        |> list.first
+
+      let assert Ok(first_maybe) = list.first(match.submatches)
+      let assert Some(name): Option(String) = first_maybe
+      name
+    })
+  project_name
+}
diff --git a/src/esgleam/serve.gleam b/src/esgleam/serve.gleam
new file mode 100644
index 0000000..ab6d9de
--- /dev/null
+++ b/src/esgleam/serve.gleam
@@ -0,0 +1,10 @@
+import esgleam
+import esgleam/internal
+
+/// Serves the `/dist` directory as `/` on http://127.0.0.1:8000.
+pub fn main() {
+  esgleam.new(outdir: "./dist")
+  |> esgleam.entry(internal.get_project_name() <> ".gleam")
+  |> esgleam.serve(dir: "./dist")
+  |> esgleam.bundle
+}