Improvements in event compilation (#659)

* Make compiling chrono conditional

It's not necessary for all event types.

Signed-off-by: David Calavera <david.calavera@gmail.com>

* Make compiling query_map conditional.

It's not used in all events.

Signed-off-by: David Calavera <david.calavera@gmail.com>

* Test individual features

- Convert package to 2021 edition.
- Format imports.

Signed-off-by: David Calavera <david.calavera@gmail.com>

* Remove old idioms

So people don't have to learn 2015 idioms like `extern crate` and implicit macro imports.

Signed-off-by: David Calavera <david.calavera@gmail.com>

* Bump crate version

Signed-off-by: David Calavera <david.calavera@gmail.com>

---------

Signed-off-by: David Calavera <david.calavera@gmail.com>

Author: calavera

.github/workflows/build-events.yml

@@ -26,3 +26,12 @@ jobs:
         with:
           package: aws_lambda_events
           toolchain: ${{ matrix.toolchain}}
+  check-event-features:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: dtolnay/rust-toolchain@stable
+      - uses: Swatinem/rust-cache@v2
+
+      - name: Test individual event features
+        run: make check-event-features

Makefile

@@ -60,3 +60,47 @@ invoke-integration-api-%:
 	curl -X POST -d '{"command": "hello"}' $(API_URL)/trait/post
 	curl -X POST -d '{"command": "hello"}' $(API_URL)/al2/post
 	curl -X POST -d '{"command": "hello"}' $(API_URL)/al2-trait/post
+
+# Test individual event features to ensure optional dependencies
+# are correctly loaded when all default features are disabled.
+check-event-features:
+	cargo test --package aws_lambda_events --no-default-features --features activemq
+	cargo test --package aws_lambda_events --no-default-features --features alb
+	cargo test --package aws_lambda_events --no-default-features --features apigw
+	cargo test --package aws_lambda_events --no-default-features --features appsync
+	cargo test --package aws_lambda_events --no-default-features --features autoscaling
+	cargo test --package aws_lambda_events --no-default-features --features chime_bot
+	cargo test --package aws_lambda_events --no-default-features --features clientvpn
+	cargo test --package aws_lambda_events --no-default-features --features cloudwatch_events
+	cargo test --package aws_lambda_events --no-default-features --features cloudwatch_logs
+	cargo test --package aws_lambda_events --no-default-features --features code_commit
+	cargo test --package aws_lambda_events --no-default-features --features codebuild
+	cargo test --package aws_lambda_events --no-default-features --features codedeploy
+	cargo test --package aws_lambda_events --no-default-features --features codepipeline_cloudwatch
+	cargo test --package aws_lambda_events --no-default-features --features codepipeline_job
+	cargo test --package aws_lambda_events --no-default-features --features cognito
+	cargo test --package aws_lambda_events --no-default-features --features config
+	cargo test --package aws_lambda_events --no-default-features --features connect
+	cargo test --package aws_lambda_events --no-default-features --features dynamodb
+	cargo test --package aws_lambda_events --no-default-features --features ecr_scan
+	cargo test --package aws_lambda_events --no-default-features --features firehose
+	cargo test --package aws_lambda_events --no-default-features --features iam
+	cargo test --package aws_lambda_events --no-default-features --features iot
+	cargo test --package aws_lambda_events --no-default-features --features iot_1_click
+	cargo test --package aws_lambda_events --no-default-features --features iot_button
+	cargo test --package aws_lambda_events --no-default-features --features iot_deprecated
+	cargo test --package aws_lambda_events --no-default-features --features kafka
+	cargo test --package aws_lambda_events --no-default-features --features kinesis
+	cargo test --package aws_lambda_events --no-default-features --features kinesis_analytics
+	cargo test --package aws_lambda_events --no-default-features --features lambda_function_urls
+	cargo test --package aws_lambda_events --no-default-features --features lex
+	cargo test --package aws_lambda_events --no-default-features --features rabbitmq
+	cargo test --package aws_lambda_events --no-default-features --features s3
+	cargo test --package aws_lambda_events --no-default-features --features s3_batch_job
+	cargo test --package aws_lambda_events --no-default-features --features ses
+	cargo test --package aws_lambda_events --no-default-features --features sns
+	cargo test --package aws_lambda_events --no-default-features --features sqs
+	cargo test --package aws_lambda_events --no-default-features --features streams
+
+fmt:
+	cargo +nightly fmt --all

lambda-events/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "aws_lambda_events"
-version = "0.9.0"
+version = "0.10.0"
 description = "AWS Lambda event definitions"
 authors = [
   "Christian Legnitto <christian@legnitto.com>",
@@ -13,29 +13,26 @@ repository = "https://github.com/awslabs/aws-lambda-rust-runtime"
 readme = "README.md"
 keywords = ["lambda", "aws", "amazon", "events", "S3"]
 categories = ["api-bindings", "encoding", "web-programming"]
+edition = "2021"
 
 [dependencies]
 base64 = "0.21"
-http = "0.2"
-http-body = "0.4"
-http-serde = "^1"
-serde = "^1"
-serde_derive = "^1"
+http = { version = "0.2", optional = true }
+http-body = { version = "0.4", optional = true }
+http-serde = { version = "^1", optional = true }
+serde = { version = "^1", features = ["derive"] }
 serde_with = { version = "^3", features = ["json"], optional = true }
 serde_json = "^1"
 serde_dynamo = { version = "^4.1", optional = true }
-bytes = { version = "1", features = ["serde"] }
+bytes = { version = "1", features = ["serde"], optional = true }
 chrono = { version = "0.4.23", default-features = false, features = [
   "clock",
   "serde",
   "std",
-] }
-query_map = { version = "^0.6", features = ["serde", "url-query"] }
+], optional = true }
+query_map = { version = "^0.6", features = ["serde", "url-query"], optional = true }
 flate2 = { version = "1.0.24", optional = true }
 
-[dev-dependencies]
-pretty_assertions = "1.3"
-
 [features]
 default = [
   "activemq",
@@ -78,40 +75,40 @@ default = [
 ]
 
 activemq = []
-alb = []
-apigw = []
+alb = ["bytes", "http", "http-body", "http-serde", "query_map"]
+apigw = ["bytes", "http", "http-body", "http-serde", "query_map"]
 appsync = []
-autoscaling = []
-chime_bot = []
+autoscaling = ["chrono"]
+chime_bot = ["chrono"]
 clientvpn = []
-cloudwatch_events = []
+cloudwatch_events = ["chrono"]
 cloudwatch_logs = ["flate2"]
-code_commit = []
-codebuild = []
-codedeploy = []
+code_commit = ["chrono"]
+codebuild = ["chrono"]
+codedeploy = ["chrono"]
 codepipeline = []
-codepipeline_cloudwatch = []
+codepipeline_cloudwatch = ["chrono"]
 codepipeline_job = []
 cognito = []
 config = []
 connect = []
-dynamodb = ["streams", "serde_dynamo"]
+dynamodb = ["chrono", "serde_dynamo", "streams"]
 ecr_scan = []
-firehose = []
+firehose = ["chrono"]
 iam = []
-iot = ["iam"]
+iot = ["bytes", "http", "http-body", "http-serde", "iam"]
 iot_1_click = []
 iot_button = []
 iot_deprecated = ["iot"]
-kafka = []
-kinesis = []
+kafka = ["chrono"]
+kinesis = ["chrono"]
 kinesis_analytics = ["kinesis"]
-lambda_function_urls = []
+lambda_function_urls = ["bytes", "http", "http-body", "http-serde"]
 lex = []
 rabbitmq = []
-s3 = []
+s3 = ["bytes", "chrono", "http", "http-body", "http-serde"]
 s3_batch_job = ["s3"]
-ses = []
-sns = ["serde_with"]
+ses = ["chrono"]
+sns = ["chrono", "serde_with"]
 sqs = ["serde_with"]
 streams = []

lambda-events/src/custom_serde/codebuild_time.rs

@@ -1,6 +1,9 @@
 use chrono::{DateTime, TimeZone, Utc};
-use serde::de::{Deserialize, Deserializer, Error as DeError, Visitor};
 use serde::ser::Serializer;
+use serde::{
+    de::{Deserializer, Error as DeError, Visitor},
+    Deserialize,
+};
 use std::fmt;
 
 // Jan 2, 2006 3:04:05 PM
@@ -10,7 +13,7 @@ struct TimeVisitor;
 impl<'de> Visitor<'de> for TimeVisitor {
     type Value = DateTime<Utc>;
 
-    fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
+    fn expecting(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
         write!(formatter, "valid codebuild time: {}", CODEBUILD_TIME_FORMAT)
     }
 
@@ -74,7 +77,7 @@ mod tests {
             #[serde(with = "str_time")]
             pub date: TestTime,
         }
-        let data = json!({
+        let data = serde_json::json!({
             "date": "Sep 1, 2017 4:12:29 PM"
         });
 
@@ -92,7 +95,7 @@ mod tests {
             #[serde(with = "optional_time")]
             pub date: Option<TestTime>,
         }
-        let data = json!({
+        let data = serde_json::json!({
             "date": "Sep 1, 2017 4:12:29 PM"
         });
 

lambda-events/src/custom_serde/float_unix_epoch.rs

@@ -14,13 +14,13 @@ fn ne_timestamp<T: fmt::Display>(ts: T) -> SerdeError<T, u8> {
 }
 
 impl<V: fmt::Display, D: fmt::Display> fmt::Debug for SerdeError<V, D> {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         write!(f, "ChronoSerdeError({})", self)
     }
 }
 
 impl<V: fmt::Display, D: fmt::Display> fmt::Display for SerdeError<V, D> {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         match *self {
             SerdeError::NonExistent { ref timestamp } => {
                 write!(f, "value is not a legal timestamp: {}", timestamp)
@@ -77,7 +77,7 @@ where
 impl<'de> de::Visitor<'de> for SecondsFloatTimestampVisitor {
     type Value = DateTime<Utc>;
 
-    fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
+    fn expecting(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
         formatter.write_str("a unix timestamp as a float")
     }
 

lambda-events/src/custom_serde/headers.rs

@@ -49,7 +49,7 @@ impl<'de> Visitor<'de> for HeaderMapVisitor {
     type Value = HeaderMap;
 
     // Format a message stating what data this Visitor expects to receive.
-    fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
+    fn expecting(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
         formatter.write_str("lots of things can go wrong with HeaderMap")
     }
 
@@ -81,7 +81,7 @@ impl<'de> Visitor<'de> for HeaderMapVisitor {
         let mut map = HeaderMap::with_capacity(access.size_hint().unwrap_or(0));
 
         if !self.is_human_readable {
-            while let Some((key, arr)) = access.next_entry::<Cow<str>, Vec<Cow<[u8]>>>()? {
+            while let Some((key, arr)) = access.next_entry::<Cow<'_, str>, Vec<Cow<'_, [u8]>>>()? {
                 let key = HeaderName::from_bytes(key.as_bytes())
                     .map_err(|_| de::Error::invalid_value(Unexpected::Str(&key), &self))?;
                 for val in arr {
@@ -91,7 +91,7 @@ impl<'de> Visitor<'de> for HeaderMapVisitor {
                 }
             }
         } else {
-            while let Some((key, val)) = access.next_entry::<Cow<str>, OneOrMore>()? {
+            while let Some((key, val)) = access.next_entry::<Cow<'_, str>, OneOrMore<'_>>()? {
                 let key = HeaderName::from_bytes(key.as_bytes())
                     .map_err(|_| de::Error::invalid_value(Unexpected::Str(&key), &self))?;
                 match val {
@@ -135,6 +135,7 @@ where
 #[cfg(test)]
 mod tests {
     use super::*;
+    use serde::{Deserialize, Serialize};
 
     #[test]
     fn test_deserialize_missing_http_headers() {
@@ -143,7 +144,7 @@ mod tests {
             #[serde(deserialize_with = "deserialize_headers", default)]
             pub headers: HeaderMap,
         }
-        let data = json!({
+        let data = serde_json::json!({
             "not_headers": {}
         });
 
@@ -161,7 +162,7 @@ mod tests {
             #[serde(serialize_with = "serialize_multi_value_headers")]
             headers: HeaderMap,
         }
-        let data = json!({
+        let data = serde_json::json!({
             "headers": {
                 "Accept": ["*/*"]
             }
@@ -181,7 +182,7 @@ mod tests {
             #[serde(deserialize_with = "deserialize_headers")]
             headers: HeaderMap,
         }
-        let data = json!({ "headers": null });
+        let data = serde_json::json!({ "headers": null });
 
         let decoded: Test = serde_json::from_value(data).unwrap();
         assert!(decoded.headers.is_empty());

lambda-events/src/custom_serde/http_method.rs

@@ -11,7 +11,7 @@ struct MethodVisitor;
 impl<'de> Visitor<'de> for MethodVisitor {
     type Value = Method;
 
-    fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
+    fn expecting(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
         write!(formatter, "valid method name")
     }
 
@@ -56,6 +56,7 @@ pub fn serialize_optional<S: Serializer>(method: &Option<Method>, ser: S) -> Res
 #[cfg(test)]
 mod tests {
     use super::*;
+    use serde::{Deserialize, Serialize};
 
     #[test]
     fn test_http_method_serializer() {
@@ -64,7 +65,7 @@ mod tests {
             #[serde(with = "crate::custom_serde::http_method")]
             pub method: http::Method,
         }
-        let data = json!({
+        let data = serde_json::json!({
             "method": "DELETE"
         });
         let decoded: Test = serde_json::from_value(data.clone()).unwrap();
@@ -83,7 +84,7 @@ mod tests {
             #[serde(default)]
             pub method: Option<http::Method>,
         }
-        let data = json!({
+        let data = serde_json::json!({
             "method": "DELETE"
         });
         let decoded: Test = serde_json::from_value(data.clone()).unwrap();
@@ -92,11 +93,11 @@ mod tests {
         let recoded = serde_json::to_value(decoded).unwrap();
         assert_eq!(data, recoded);
 
-        let data = json!({ "method": null });
+        let data = serde_json::json!({ "method": null });
         let decoded: Test = serde_json::from_value(data).unwrap();
         assert_eq!(None, decoded.method);
 
-        let data = json!({});
+        let data = serde_json::json!({});
         let decoded: Test = serde_json::from_value(data).unwrap();
         assert_eq!(None, decoded.method);
     }