chore: prepare for automatic release

.github/workflows/lint-pr.yml

@@ -0,0 +1,42 @@
+name: 'Lint PR'
+
+on:
+  pull_request_target:
+    types:
+      - opened
+      - edited
+      - synchronize
+
+jobs:
+  main:
+    name: Validate PR title
+    runs-on: ubuntu-latest
+    steps:
+      - uses: amannn/action-semantic-pull-request@v5
+        id: lint_pr_title
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - uses: marocchino/sticky-pull-request-comment@v2
+        # When the previous steps fails, the workflow would stop. By adding this
+        # condition you can continue the execution with the populated error message.
+        if: always() && (steps.lint_pr_title.outputs.error_message != null)
+        with:
+          header: pr-title-lint-error
+          message: |
+            Hey there and thank you for opening this pull request! 👋🏼
+
+            We require pull request titles to follow the [Conventional Commits specification](https://www.conventionalcommits.org/en/v1.0.0/) and it looks like your proposed title needs to be adjusted.
+
+            Details:
+
+            ```
+            ${{ steps.lint_pr_title.outputs.error_message }}
+            ```
+
+      # Delete a previous comment when the issue has been resolved
+      - if: ${{ steps.lint_pr_title.outputs.error_message == null }}
+        uses: marocchino/sticky-pull-request-comment@v2
+        with:   
+          header: pr-title-lint-error
+          delete: true

.github/workflows/release-please.yml

@@ -0,0 +1,47 @@
+# This workflow creates a running release please PR, which tracks all changes
+# based on semantic PR titles. When that PR is merged, a publish occurs after
+# release please increments the version.
+
+on:
+  push:
+    branches:
+      - main
+
+name: Run Release Please
+permissions:
+  contents: read
+
+jobs:
+  release-please:
+    permissions:
+      contents: write  # for google-github-actions/release-please-action to create release commit
+      pull-requests: write  # for google-github-actions/release-please-action to create release PR
+    runs-on: ubuntu-latest
+
+    # Release-please creates a PR that tracks all changes
+    steps:
+      - uses: google-github-actions/release-please-action@v3
+        id: release
+        with:
+          command: manifest
+          token: ${{secrets.GITHUB_TOKEN}}
+          default-branch: main
+    outputs:
+      release_created: ${{ steps.release.outputs.release_created }}
+      release_tag_name: ${{ steps.release.outputs.tag_name }}
+
+  cargo-publish:
+    needs: release-please
+    runs-on: ubuntu-latest
+    if: ${{ needs.release-please.outputs.release_created }}
+    steps:
+      - name: checkout
+        uses: actions/checkout@v3
+        with:
+          ref: ${{ needs.release-please.outputs.release_tag_name }}
+
+      - name: Publish
+        run: |
+          cargo publish
+        env:
+          CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}

.github/workflows/rust.yml

@@ -17,5 +17,7 @@ jobs:
     - uses: actions/checkout@v4
     - name: Build
       run: cargo build --verbose
+    - name: Check formats
+      run: cargo fmt --check
     - name: Run tests
       run: cargo test --verbose

.release-please-manifest.json

@@ -0,0 +1 @@
+{ ".": "0.1.0" }

Cargo.toml

@@ -2,6 +2,16 @@
 name = "open-feature"
 version = "0.1.0"
 edition = "2021"
+rust-version = "1.67.1"
+description = "The official OpenFeature Rust SDK."
+documentation = "https://docs.rs/open-feature"
+readme = "README.md"
+homepage = "https://openfeature.dev/"
+repository = "https://github.com/open-feature/rust-sdk"
+license = "Apache License, Version 2.0"
+
+[badges]
+maintenance = { status = "actively-developed" }
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 

README.md

@@ -19,8 +19,8 @@
   <!-- x-release-please-start-version -->
 
 <!-- TODO: update with your SDK repo and the latest release version
-  <a href="https://github.com/open-feature/my-sdk/releases/tag/v0.0.1">
-    <img alt="Release" src="https://img.shields.io/static/v1?label=release&message=v0.0.1&color=blue&style=for-the-badge" />
+  <a href="https://github.com/open-feature/rust-sdk/releases/tag/v0.1.0">
+    <img alt="Release" src="https://img.shields.io/static/v1?label=release&message=v0.1.0&color=blue&style=for-the-badge" />
   </a>  
 -->
 
@@ -47,9 +47,11 @@ This package was built with Rust version `1.70.0`. Earlier versions might work,
 
 Add the following content to the `Cargo.toml` file:
 
+<!-- x-release-please-start-version -->
 ```toml
-open-feature = { git = "https://github.com/open-feature/rust-sdk", branch = "main" }
+open-feature = "0.1.0"
 ```
+<!-- x-release-please-end -->
 
 ### Usage
 

release-please-config.json

@@ -0,0 +1,65 @@
+{
+  "packages": {
+    ".": {
+      "release-type": "rust",
+      "prerelease": false,
+      "bump-minor-pre-major": true,
+      "bump-patch-for-minor-pre-major": true,
+      "extra-files": ["README.md"],
+      "changelog-sections": [
+        {
+          "type": "fix",
+          "section": "🐛 Bug Fixes"
+        },
+        {
+          "type": "feat",
+          "section": "✨ New Features"
+        },
+        {
+          "type": "chore",
+          "section": "🧹 Chore"
+        },
+        {
+          "type": "docs",
+          "section": "📚 Documentation"
+        },
+        {
+          "type": "perf",
+          "section": "🚀 Performance"
+        },
+        {
+          "type": "build",
+          "hidden": true,
+          "section": "🛠️ Build"
+        },
+        {
+          "type": "deps",
+          "section": "📦 Dependencies"
+        },
+        {
+          "type": "ci",
+          "hidden": true,
+          "section": "🚦 CI"
+        },
+        {
+          "type": "refactor",
+          "section": "🔄 Refactoring"
+        },
+        {
+          "type": "revert",
+          "section": "🔙 Reverts"
+        },
+        {
+          "type": "style",
+          "hidden": true,
+          "section": "🎨 Styling"
+        },
+        {
+          "type": "test",
+          "hidden": true,
+          "section": "🧪 Tests"
+        }
+      ]
+    }
+  }
+}

src/api/api.rs

@@ -66,10 +66,10 @@ impl OpenFeature {
 
     /// Return the metadata of named provider (a provider bound to clients with this name).
     pub async fn named_provider_metadata(&self, name: &str) -> Option<ProviderMetadata> {
-        match self.provider_registry.get_named(name).await {
-            Some(provider) => Some(provider.get().metadata().clone()),
-            None => None,
-        }
+        self.provider_registry
+            .get_named(name)
+            .await
+            .map(|provider| provider.get().metadata().clone())
     }
 
     /// Create a new client with default name.

src/api/client.rs

@@ -12,6 +12,7 @@ use super::{
 
 /// The metadata of OpenFeature client.
 pub struct ClientMetadata {
+    /// The name of client.
     pub name: String,
 }
 
@@ -24,7 +25,10 @@ pub struct Client {
     global_evaluation_context: GlobalEvaluationContext,
 }
 
+/// The trait that converts a [`StructValue`] to a custom type.
+/// It is used to return a custom type from `get_struct_value` and `get_string_details`.
 pub trait FromStructValue<Out = Self> {
+    /// Construct type with given `value`.
     fn from_struct_value(value: &StructValue) -> anyhow::Result<Out>;
 }
 
@@ -48,6 +52,7 @@ impl Client {
         &self.metadata
     }
 
+    /// Set evaluation context to the client.
     pub fn set_evaluation_context(&mut self, evaluation_context: EvaluationContext) {
         self.evaluation_context = evaluation_context;
     }
@@ -174,7 +179,7 @@ impl Client {
             .await
             .resolve_bool_value(flag_key, &context)
             .await?
-            .to_evaluation_details(flag_key))
+            .into_evaluation_details(flag_key))
     }
 
     /// Return the [`EvaluationDetails`] with given `flag_key`, `evaluation_context` and
@@ -193,7 +198,7 @@ impl Client {
             .await
             .resolve_int_value(flag_key, &context)
             .await?
-            .to_evaluation_details(flag_key))
+            .into_evaluation_details(flag_key))
     }
 
     /// Return the [`EvaluationDetails`] with given `flag_key`, `evaluation_context` and
@@ -212,7 +217,7 @@ impl Client {
             .await
             .resolve_float_value(flag_key, &context)
             .await?
-            .to_evaluation_details(flag_key))
+            .into_evaluation_details(flag_key))
     }
 
     /// Return the [`EvaluationDetails`] with given `flag_key`, `evaluation_context` and
@@ -231,7 +236,7 @@ impl Client {
             .await
             .resolve_string_value(flag_key, &context)
             .await?
-            .to_evaluation_details(flag_key))
+            .into_evaluation_details(flag_key))
     }
 
     /// Return the [`EvaluationDetails`] with given `flag_key`, `evaluation_context` and
@@ -292,7 +297,7 @@ impl Client {
 }
 
 impl<T> ResolutionDetails<T> {
-    fn to_evaluation_details(self, flag_key: impl Into<String>) -> EvaluationDetails<T> {
+    fn into_evaluation_details(self, flag_key: impl Into<String>) -> EvaluationDetails<T> {
         EvaluationDetails {
             flag_key: flag_key.into(),
             value: self.value,

src/api/provider_registry.rs

@@ -36,20 +36,20 @@ impl ProviderRegistry {
         map.remove("");
 
         provider
-            .initialize(&self.global_evaluation_context.get().await.borrow())
+            .initialize(self.global_evaluation_context.get().await.borrow())
             .await;
 
         map.insert(String::default(), FeatureProviderWrapper::new(provider));
     }
 
     pub async fn set_named<T: FeatureProvider>(&self, name: &str, mut provider: T) {
         // Drop the already registered provider if any.
-        if let Some(_) = self.get_named(name).await {
+        if self.get_named(name).await.is_some() {
             self.providers.write().await.remove(name);
         }
 
         provider
-            .initialize(&self.global_evaluation_context.get().await.borrow())
+            .initialize(self.global_evaluation_context.get().await.borrow())
             .await;
 
         self.providers
@@ -70,11 +70,7 @@ impl ProviderRegistry {
     }
 
     pub async fn get_named(&self, name: &str) -> Option<FeatureProviderWrapper> {
-        self.providers
-            .read()
-            .await
-            .get(name)
-            .map(|provider| provider.clone())
+        self.providers.read().await.get(name).cloned()
     }
 
     pub async fn clear(&self) {

src/evaluation/context.rs

@@ -29,6 +29,8 @@ pub struct EvaluationContext {
 }
 
 impl EvaluationContext {
+    /// Add `key` and `value` to the custom field of evaluation context.
+    #[must_use]
     pub fn with_custom_field(
         mut self,
         key: impl Into<String>,
@@ -38,6 +40,7 @@ impl EvaluationContext {
         self
     }
 
+    /// Add `key` and `value` to the custom field of evaluation context.
     pub fn add_custom_field(
         &mut self,
         key: impl Into<String>,
@@ -46,6 +49,8 @@ impl EvaluationContext {
         self.custom_fields.insert(key.into(), value.into());
     }
 
+    /// Merge `other` into `self` if corresponding field is not set.
+    /// Meaning values set into `self` has higher precedence.
     pub fn merge_missing(&mut self, other: &Self) {
         if self.targeting_key.is_none() {
             if let Some(targeting_key) = &other.targeting_key {