From 1cee9136e0063c6ad378641b080cbd233079c9a9 Mon Sep 17 00:00:00 2001
From: PgBiel <9021226+PgBiel@users.noreply.github.com>
Date: Mon, 30 Sep 2024 20:42:37 -0300
Subject: [PATCH] Add Nix support to `compiler-wasm` (#22)

* add nix target to compiler-wasm

* fmt

* fix test-build

* fetch tags in test-build

* fetch tags: take 2
---
 .github/workflows/test-build.yaml | 14 +++++++++++---
 compiler-wasm/src/lib.rs          | 15 ++++++++++++++-
 2 files changed, 25 insertions(+), 4 deletions(-)

diff --git a/.github/workflows/test-build.yaml b/.github/workflows/test-build.yaml
index bfe2ceb7e..132af5360 100644
--- a/.github/workflows/test-build.yaml
+++ b/.github/workflows/test-build.yaml
@@ -40,6 +40,8 @@ jobs:
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
 
       - name: Install Rust toolchain
         uses: dtolnay/rust-toolchain@stable
@@ -62,7 +64,9 @@ jobs:
       - name: Build archive
         shell: bash
         run: |
-          VERSION="${GITHUB_REF#refs/tags/}"
+          # Get latest version
+          # https://stackoverflow.com/a/69708418
+          VERSION="$(git describe --tags "$(git rev-list --tags --max-count=1)")"
 
           if [ "${{ matrix.os }}" = "windows-latest" ]; then
             ARCHIVE="glistix-$VERSION-${{ matrix.target }}.zip"
@@ -105,12 +109,14 @@ jobs:
           retention-days: 3
 
   build-test-wasm:
-    name: build-release-wasm
+    name: build-test-wasm
     runs-on: ubuntu-latest
 
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
 
       - name: Install Rust toolchain
         uses: actions-rs/toolchain@v1
@@ -128,7 +134,9 @@ jobs:
 
       - name: Build wasm archive
         run: |
-          VERSION="${GITHUB_REF#refs/tags/}"
+          # Get latest version
+          # https://stackoverflow.com/a/69708418
+          VERSION="$(git describe --tags "$(git rev-list --tags --max-count=1)")"
           ARCHIVE="glistix-$VERSION-browser.tar.gz"
 
           tar -C compiler-wasm/pkg/ -czvf $ARCHIVE .
diff --git a/compiler-wasm/src/lib.rs b/compiler-wasm/src/lib.rs
index 6702f2d1f..f8a527181 100644
--- a/compiler-wasm/src/lib.rs
+++ b/compiler-wasm/src/lib.rs
@@ -116,8 +116,10 @@ pub fn compile_package(project_id: usize, target: &str) -> Result<(), String> {
     let target = match target.to_lowercase().as_str() {
         "erl" | "erlang" => Target::Erlang,
         "js" | "javascript" => Target::JavaScript,
+        "nix" => Target::Nix,
         _ => {
-            let msg = format!("Unknown target `{target}`, expected `erlang` or `javascript`");
+            let msg =
+                format!("Unknown target `{target}`, expected `erlang`, `javascript` or `nix`");
             return Err(msg);
         }
     };
@@ -150,6 +152,17 @@ pub fn read_compiled_erlang(project_id: usize, module_name: &str) -> Option<Stri
     fs.read(&Utf8PathBuf::from(path)).ok()
 }
 
+/// Get the compiled Nix output for a given module.
+///
+/// You need to call `compile_package` before calling this function.
+///
+#[wasm_bindgen]
+pub fn read_compiled_nix(project_id: usize, module_name: &str) -> Option<String> {
+    let fs = get_filesystem(project_id);
+    let path = format!("/build/{}.nix", module_name);
+    fs.read(&Utf8PathBuf::from(path)).ok()
+}
+
 /// Clear any stored warnings. This is performed automatically when before compilation.
 ///
 #[wasm_bindgen]