Merge branch 'main' into main

.github/workflows/ci.yaml

@@ -107,6 +107,21 @@ jobs:
           mix local.hex --force
         if: ${{ runner.os == 'macOS' }} # setup-beam does not support macOS
 
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: "22"
+
+      - name: Setup Deno
+        uses: denoland/setup-deno@v2
+        with:
+          deno-version: "2.2"
+
+      - name: Setup Bun
+        uses: oven-sh/setup-bun@v2
+        with:
+          bun-version: "1.2"
+
       - name: Handle Rust dependencies caching
         uses: Swatinem/rust-cache@v2
         with:
@@ -116,7 +131,7 @@ jobs:
         uses: clechasseur/rs-cargo@v3
         with:
           command: install
-          args: "--path compiler-cli --target ${{ matrix.target }} --debug --locked --force"
+          args: "--path gleam-bin --target ${{ matrix.target }} --debug --locked --force"
           tool: ${{ matrix.cargo-tool }}
         if: ${{ matrix.run-integration-tests }}
 
@@ -141,7 +156,17 @@ jobs:
         uses: clechasseur/rs-cargo@v3
         with:
           command: test
-          args: "--workspace --target ${{ matrix.target }}"
+          # We only want to run the `test-output` when running integration tests.
+          # There's a caveat though: when `cargo-tool` is `cross` it uses a container
+          # and would result in these integration tests failing due to not finding
+          # the escript binary. So, in case `cargo-tool != cargo` we'll skip the
+          # `test-output` tests as well.
+          args: >-
+            --workspace
+            --target ${{ matrix.target }}
+            ${{ ((matrix.run-integration-tests && matrix.cargo-tool == 'cargo')
+                  && ' ')
+                  || '--exclude test-output' }}
           tool: ${{ matrix.cargo-tool }}
 
       - name: test/project_erlang (non-windows)
@@ -293,7 +318,7 @@ jobs:
 
       - uses: actions/setup-node@v4
         with:
-          node-version: "20"
+          node-version: "22"
 
       - name: Install wasm-pack
         run: |

CHANGELOG.md

@@ -1,12 +1,51 @@
 # Changelog
 
-## Unreleased
+## v1.9.0-rc1 - 2025-03-04
 
 ### Compiler
 
 - Gleam will now warn when running a deprecated or internal module main function
 ([Lioncat2002](https://github.com/Lioncat2002))
 
+- You can now use the `echo` keyword to debug print any value: `echo` can be
+  followed by any expression and it will print it to stderr alongside the module
+  it comes from and its line number. This:
+
+  ```gleam
+  pub fn main() {
+    echo [1, 2, 3]
+  }
+  ```
+
+  Will output to stderr:
+
+  ```txt
+  /src/module.gleam:2
+  [1, 2, 3]
+  ```
+
+  `echo` can also be used in the middle of a pipeline. This:
+
+  ```gleam
+  pub fn main() {
+    [1, 2, 3]
+    |> echo
+    |> list.map(fn(x) { x * 2 })
+    |> echo
+  }
+  ```
+
+  Will output to stderr:
+
+  ```txt
+  /src/module.gleam:3
+  [1, 2, 3]
+  /src/module.gleam:5
+  [2, 4, 6]
+  ```
+
+  ([Giacomo Cavalieri](https://github.com/giacomocavalieri))
+
 - Generated Erlang `.app` files now include external modules written in Elixir
   and Erlang.
   ([LostKobrakai](https://github.com/lostkobrakai))
@@ -17,7 +56,8 @@
   ([Diemo Gebhardt](https://github.com/diemogebhardt))
 
 - Improved the styling of constructor argument descriptions in the generated
-  documentation. ([Nicd](https://git.ahlcode.fi/nicd))
+  documentation.
+  ([Nicd](https://git.ahlcode.fi/nicd))
 
 - Allow users to set the `GLEAM_CACERTS_PATH` environment variable to specify a
   path to a directory containing CA certificates to install Hex packages.
@@ -32,6 +72,10 @@
   now be up to twice as fast.
   ([yoshi~](https://github.com/yoshi-monster))
 
+- On the JavaScript target, bit array patterns can now match segments of dynamic
+  size.
+  ([Surya Rose](https://github.com/GearsDatapacks))
+
 ### Build tool
 
 - The build tool now supports Git dependencies. For example:
@@ -43,6 +87,10 @@
 
   ([Surya Rose](https://github.com/GearsDatapacks))
 
+- The build tool now refuses to publish any incomplete package that has any
+  `echo` debug printing left.
+  ([Giacomo Cavalieri](https://github.com/giacomocavalieri))
+
 ### Language server
 
 - The language server now has the ability to jump to the type definition of any
@@ -116,7 +164,7 @@
 
   ([Giacomo Cavalieri](https://github.com/giacomocavalieri))
 
-- The Language Server now suggests a code action to generate a function to
+- The language server now suggests a code action to generate a function to
   encode a custom type as JSON using the `gleam_json` package. For example:
 
   ```gleam
@@ -144,7 +192,7 @@
 
   ([Surya Rose](https://github.com/GearsDatapacks))
 
-- The Language Server now suggests a code action to inline a variable
+- The language server now suggests a code action to inline a variable
   which is only used once. For example, this code:
 
   ```gleam
@@ -231,8 +279,27 @@
 
   ([Giacomo Cavalieri](https://github.com/giacomocavalieri))
 
+- The language server now shows module documentation when hovering over a module
+  name.
+  ([Surya Rose](https://github.com/GearsDatapacks))
+
 ### Formatter
 
+- Redundant function captures that take no additional arguments are now
+  rewritten to not use the function capture syntax.
+
+  ```gleam
+  some_module.some_function(_)
+  ```
+
+  This code is reformatted like so:
+
+  ```gleam
+  some_module.some_function
+  ```
+
+  ([Giacomo Cavalieri](https://github.com/giacomocavalieri))
+
 ### Bug fixes
 
 - Fixed a bug where division and remainder operators would not work correctly
@@ -248,6 +315,20 @@
   private type used in the same module it's defined in.
   ([Giacomo Cavalieri](https://github.com/giacomocavalieri))
 
+- Fixed a bug where `gleam export package-interface` would not properly generate
+  the package interface file if some modules were cached.
+  ([Pedro Francisco](https://github.com/mine-tech-oficial)) and
+  ([Surya Rose](https://github.com/GearsDatapacks))
+
+- Fixed a bug where pattern matching using a UTF-8 string constant would not
+  work correctly on the JavaScript target when the string contained escape
+  characters.
+  ([Richard Viney](https://github.com/richard-viney))
+
+- Fixed a bug where `gleam publish` wouldn't include gitignored or nested native
+  files.
+  ([PgBiel](https://github.com/PgBiel))
+
 ## v1.8.1 - 2025-02-11
 
 ### Bug fixes

Cargo.toml

@@ -1,12 +1,14 @@
 [workspace]
 resolver = "2"
 members = [
-  "compiler-cli",
-  "compiler-core",
-  "compiler-wasm",
-  "test-helpers-rs",
-  "test-package-compiler",
-  "test-project-compiler",
+    "gleam-bin",
+    "compiler-cli",
+    "compiler-core",
+    "compiler-wasm",
+    "test-helpers-rs",
+    "test-output",
+    "test-package-compiler",
+    "test-project-compiler",
 ]
 
 # common dependencies
@@ -59,7 +61,7 @@ thiserror = "1"
 # Test assertion errors with diffs
 pretty_assertions = "1"
 # Snapshot testing to make test maintenance easier
-insta = {version = "1", features = ["glob"]}
+insta = { version = "1", features = ["glob"] }
 # A transitive dependency needed to compile into wasm32-unknown-unknown
 # See https://docs.rs/getrandom/latest/getrandom/index.html#webassembly-support
 getrandom = { version = "0", features = ["js"] }

Makefile

@@ -12,7 +12,7 @@ build: ## Build the compiler
 
 .PHONY: install
 install: ## Build the Gleam compiler and place it on PATH
-	cd compiler-cli && cargo install --path . --force --locked
+	cd gleam-bin && cargo install --path . --force --locked
 
 .PHONY: test
 test: ## Run the compiler unit tests