Add pkg version

.changepacks/changepack_log_KcdLl0PBqSzwXJah8jSDB.json

@@ -0,0 +1 @@
+{"changes":{"crates/vespera_core/Cargo.toml":"Patch","crates/vespera_macro/Cargo.toml":"Patch","crates/vespera/Cargo.toml":"Patch"},"note":"Apply automatic sync to Cargo.toml package version","date":"2026-01-04T08:11:58.130989600Z"}

README.md

@@ -248,7 +248,7 @@ let app = vespera!(
     dir = "routes",              // Route folder name (default: "routes")
     openapi = "openapi.json",    // OpenAPI JSON file path (optional)
     title = "My API",            // API title (optional, default: "API")
-    version = "1.0.0",           // API version (optional, default: "1.0.0")
+    version = "1.0.0",           // API version (optional, default: Cargo.toml version)
     docs_url = "/docs"           // Swagger UI documentation URL (optional)
 );
 ```
@@ -268,13 +268,53 @@ let app = vespera!(
 - **`title`**: API title (optional, default: `"API"`)
   - Used in the `info.title` field of the OpenAPI document
 
-- **`version`**: API version (optional, default: `"1.0.0"`)
+- **`version`**: API version (optional, default: your `Cargo.toml` version)
   - Used in the `info.version` field of the OpenAPI document
+  - If not specified, automatically uses the version from your project's `Cargo.toml` (`CARGO_PKG_VERSION`)
 
 - **`docs_url`**: Swagger UI documentation URL (optional)
   - If specified, you can view the API documentation through Swagger UI at that path
   - Example: Setting `docs_url = "/docs"` allows viewing documentation at `http://localhost:3000/docs`
 
+- **`redoc_url`**: ReDoc documentation URL (optional)
+  - If specified, you can view the API documentation through ReDoc at that path
+  - Example: Setting `redoc_url = "/redoc"` allows viewing documentation at `http://localhost:3000/redoc`
+
+#### Environment Variables
+
+All macro parameters can also be configured via environment variables. Environment variables are used as fallbacks when the corresponding macro parameter is not specified.
+
+| Macro Parameter | Environment Variable | Description |
+|-----------------|---------------------|-------------|
+| `dir` | `VESPERA_DIR` | Route folder name |
+| `openapi` | `VESPERA_OPENAPI` | OpenAPI JSON file path |
+| `title` | `VESPERA_TITLE` | API title |
+| `version` | `VESPERA_VERSION` | API version |
+| `docs_url` | `VESPERA_DOCS_URL` | Swagger UI documentation URL |
+| `redoc_url` | `VESPERA_REDOC_URL` | ReDoc documentation URL |
+
+**Priority Order** (highest to lowest):
+1. Macro parameter (e.g., `version = "1.0.0"`)
+2. Environment variable (e.g., `VESPERA_VERSION`)
+3. `CARGO_PKG_VERSION` (for `version` only)
+4. Default value
+
+**Example:**
+
+```bash
+# Set environment variables
+export VESPERA_TITLE="My Production API"
+export VESPERA_VERSION="2.0.0"
+export VESPERA_DOCS_URL="/api-docs"
+```
+
+```rust
+// These will use the environment variables as defaults
+let app = vespera!(
+    openapi = "openapi.json"
+);
+```
+
 ### `#[route]` Attribute Macro
 
 Specify HTTP method and path for handler functions.

crates/vespera_macro/src/lib.rs

@@ -175,11 +175,17 @@ impl Parse for AutoRouterInput {
                     .map(|f| LitStr::new(&f, Span::call_site()))
                     .ok()
             }),
-            version: version.or_else(|| {
-                std::env::var("VESPERA_VERSION")
-                    .map(|f| LitStr::new(&f, Span::call_site()))
-                    .ok()
-            }),
+            version: version
+                .or_else(|| {
+                    std::env::var("VESPERA_VERSION")
+                        .map(|f| LitStr::new(&f, Span::call_site()))
+                        .ok()
+                })
+                .or_else(|| {
+                    std::env::var("CARGO_PKG_VERSION")
+                        .map(|f| LitStr::new(&f, Span::call_site()))
+                        .ok()
+                }),
             docs_url: docs_url.or_else(|| {
                 std::env::var("VESPERA_DOCS_URL")
                     .map(|f| LitStr::new(&f, Span::call_site()))

examples/axum-example/openapi.json

@@ -2,7 +2,7 @@
   "openapi": "3.1.0",
   "info": {
     "title": "API",
-    "version": "1.0.0"
+    "version": "0.1.0"
   },
   "servers": [
     {

examples/axum-example/tests/snapshots/integration_test__openapi.snap

@@ -6,7 +6,7 @@ expression: "std::fs::read_to_string(\"openapi.json\").unwrap()"
   "openapi": "3.1.0",
   "info": {
     "title": "API",
-    "version": "1.0.0"
+    "version": "0.1.0"
   },
   "servers": [
     {

openapi.json

@@ -2,7 +2,7 @@
   "openapi": "3.1.0",
   "info": {
     "title": "API",
-    "version": "1.0.0"
+    "version": "0.1.0"
   },
   "servers": [
     {