add lambda.

.drone.yml

@@ -20,6 +20,19 @@ steps:
       - mkdir output/
       - cargo run --release
 
+  - name: lambda-build
+    image: rust:1.50.0-slim
+    depends_on: [compile-samples]
+    commands:
+      - cd ./src/rust/namegen-lambda
+      - apt-get update
+      - apt-get install -y python3-pip
+      - pip3 install cargo-lambda
+      - cargo lambda build --release
+      - cd ./target/lambda/namegen_lambda
+      - cp ../../output/_combined.json names.json
+      - zip /code.zip *
+
   - name: website-build
     image: node:14.14.0
     depends_on: [compile-samples]
@@ -39,6 +52,7 @@ steps:
     image: amazon/aws-cli:latest
     depends_on:
       - website-build
+      - lambda-build
     environment:
       AWS_ACCESS_KEY_ID:
         from_secret: aws_access_key_id
@@ -54,3 +68,4 @@ steps:
       - cd __sapper__/export
       - aws s3 sync --delete . s3://$S3_WEBUI_BUCKET
       - aws cloudfront create-invalidation --distribution-id $CF_DISTRIBUTION_ID --paths "/*"
+      - aws lambda update-function-code --function-name namegen_lambda --zip-file fileb://../../code.zip

compiler/src/main.rs

@@ -9,7 +9,7 @@ use namegen_compiler::input::SourceCollection;
 use glob::glob;
 use std::io::{Read};
 use namegen::{Name, NamePart};
-use namegen_compiler::output::{Output, Collection, CollectionItem};
+use namegen_compiler::output::{Output, Collection, CollectionItem, CombinedOutput};
 
 const COMMON_FORMAT_NAMES: &'static [&str] = &[
     "full_name", "full_name:female", "full_name:male",
@@ -33,7 +33,8 @@ fn main() {
     };
 
     let mut data = String::with_capacity(2048);
-    let mut collection = Collection{items: Vec::new()};
+    let mut collection = Collection { items: Vec::with_capacity(64) };
+    let mut combined = CombinedOutput { map: HashMap::with_capacity(64) };
 
     for entry in read_dir(&source_dir).unwrap() {
         let entry = entry.unwrap();
@@ -89,13 +90,13 @@ fn main() {
                     part.rules.lrs, part.rules.lrm, part.rules.lre, part.rules.rlf,
                 ),
                 "wordlist" => NamePart::new_wordlist(
-                    &part.name, &part.format_rules
+                    &part.name, &part.format_rules,
                 ),
 
                 _ => {
                     eprintln!("Unknown part kind {}", &part.kind);
                     process::exit(1);
-                },
+                }
             };
 
             for set in source.sets() {
@@ -155,8 +156,10 @@ fn main() {
             eprint!("\n");
         }
 
+        combined.map.insert(manifest.name.clone(), name.clone());
+
         let path = Path::new(&dest_dir).join(format!("{}.json", &manifest.name));
-        let mut output = Output{
+        let mut output = Output {
             name: manifest.name.clone(),
             metadata: manifest.metadata.clone(),
             data: name,
@@ -167,11 +170,14 @@ fn main() {
 
         serde_json::to_writer(File::create(path).expect("Opening output filed failed"), &output).expect("Writing output failed.");
 
-        collection.items.push(CollectionItem{name: output.name.clone(), metadata: output.metadata.clone()});
+        collection.items.push(CollectionItem { name: output.name.clone(), metadata: output.metadata.clone() });
 
         eprint!("\n\n");
     }
 
     let path = Path::new(&dest_dir).join("_collection.json");
-    serde_json::to_writer(File::create(path).expect("Opening output filed failed"), &collection).expect("Writing collection failed.");
+    serde_json::to_writer(File::create(path).expect("Opening _collection.json failed"), &collection).expect("Writing collection failed.");
+
+    let path = Path::new(&dest_dir).join("_combined.json");
+    serde_json::to_writer(File::create(path).expect("Opening _combined.json failed"), &combined).expect("Writing combined failed.");
 }

compiler/src/output.rs

@@ -10,6 +10,12 @@ pub struct Output {
     pub examples: HashMap<String, Vec<String>>,
 }
 
+#[derive(Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct CombinedOutput {
+    pub map: HashMap<String, Name>,
+}
+
 #[derive(Serialize)]
 #[serde(rename_all = "camelCase")]
 pub struct Collection {

src/rust/namegen-lambda/.gitignore

@@ -0,0 +1 @@
+/target

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src/rust/namegen-lambda/Cargo.toml

@@ -0,0 +1,26 @@
+[package]
+name = "namegen_lambda"
+version = "0.1.0"
+edition = "2021"
+
+# Starting in Rust 1.62 you can use `cargo add` to add dependencies 
+# to your project.
+#
+# If you're using an older Rust version,
+# download cargo-edit(https://github.com/killercup/cargo-edit#installation) 
+# to install the `add` subcommand.
+#
+# Running `cargo add DEPENDENCY_NAME` will
+# add the latest version of a dependency to the list,
+# and it will keep the alphabetic ordering for you.
+
+[dependencies]
+lambda_http = { version = "0.6.0", default-features = false, features = ["apigw_http"] }
+lambda_runtime = "0.6.0"
+tokio = { version = "1", features = ["macros"] }
+tracing = { version = "0.1", features = ["log"] }
+tracing-subscriber = { version = "0.3", default-features = false, features = ["fmt"] }
+serde = "1.0.143"
+serde_derive = "1.0.143"
+serde_json = "1.0.83"
+namegen = {version = "0.1.3", features = ["serde"]}

src/rust/namegen-lambda/src/main.rs

@@ -0,0 +1,88 @@
+#![feature(async_closure)]
+
+use std::collections::HashMap;
+use std::fs::File;
+use std::io::Read;
+use lambda_http::{run, service_fn, Error, Request, RequestExt, Response};
+use namegen::Name;
+use serde::{Deserialize};
+
+type EndpointResult = Result::<Response<String>, Error>;
+
+#[tokio::main]
+async fn main() -> Result<(), Error> {
+    tracing_subscriber::fmt()
+        .with_max_level(tracing::Level::INFO)
+        // disable printing the name of the module in every log line.
+        .with_target(false)
+        // disabling time is handy because CloudWatch will add the ingestion time.
+        .without_time()
+        .init();
+
+    let mut file = File::open("names.json").unwrap();
+    let mut data = String::new();
+    file.read_to_string(&mut data).unwrap();
+
+    let json = serde_json::from_str::<NameGeneratorData>(&data).unwrap();
+    let json_ref = &json;
+
+    run(service_fn(move |event: Request| async move {
+        let path = event.raw_http_path();
+        let keys: Vec<String> = path.split('/').filter(|f| !f.is_empty()).map(|f| f.into()).collect();
+
+        let key = if let Some(key) = keys.get(1) {
+            key.clone()
+        } else {
+            return EndpointResult::Ok(
+                Response::builder()
+                    .status(400)
+                    .header("content-type", "text/plain")
+                    .body("Missing path".into())
+                    .expect("failed to render response")
+            )
+        };
+
+        if let Some(name) = json_ref.map.get(&key) {
+            let format_name = if let Some(key) = keys.get(2) {
+                key.as_str()
+            } else {
+                name.first_format_name().unwrap()
+            };
+
+            if let Some(gen) = name.generate(format_name) {
+                let vec: Vec<String> = gen.take(64).collect();
+
+                EndpointResult::Ok(
+                    Response::builder()
+                        .status(200)
+                        .header("content-type", "application/json")
+                        .body(serde_json::to_string(&vec).unwrap().into())
+                        .expect("failed to render response")
+                )
+            } else {
+                EndpointResult::Ok(
+                    Response::builder()
+                        .status(404)
+                        .header("content-type", "text/plain")
+                        .body("Format not found".into())
+                        .expect("failed to render response")
+                )
+            }
+        } else {
+            EndpointResult::Ok(
+                Response::builder()
+                    .status(404)
+                    .header("content-type", "text/plain")
+                    .body("Generator not found".into())
+                    .expect("failed to render response")
+            )
+        }
+    })).await?;
+
+    Ok(())
+}
+
+#[derive(Deserialize)]
+struct NameGeneratorData {
+    map: HashMap<String, Name>,
+}