feat(lib): reorg manifest work into mod

src/lib.rs

@@ -7,92 +7,14 @@ extern crate toml;
 pub mod build;
 pub mod bindgen;
 pub mod readme;
+pub mod manifest;
 
 use std::fs;
-use std::fs::File;
-use std::io::prelude::*;
 
 use failure::Error;
 
-#[derive(Deserialize)]
-struct CargoManifest {
-    package: CargoPackage,
-}
-
-#[derive(Deserialize)]
-struct CargoPackage {
-    name: String,
-    description: String,
-    version: String,
-    license: String,
-    repository: String,
-}
-
-#[derive(Serialize)]
-struct NpmPackage {
-    name: String,
-    description: String,
-    version: String,
-    license: String,
-    repository: Repository,
-    files: Vec<String>,
-}
-
-#[derive(Serialize)]
-struct Repository {
-    #[serde(rename = "type")]
-    ty: String,
-    url: String,
-}
-
-fn read_cargo_toml(path: &str) -> Result<CargoManifest, Error> {
-    let path_to_manifest = format!("{}/Cargo.toml", path);
-    println!("👩‍🍳  reading {}", path_to_manifest);
-    let mut cargo_file = File::open(path_to_manifest)?;
-    let mut cargo_contents = String::new();
-    cargo_file.read_to_string(&mut cargo_contents)?;
-
-    Ok(toml::from_str(&cargo_contents)?)
-}
-
-impl CargoManifest {
-    fn into_npm(self) -> NpmPackage {
-        let filename = self.package.name.replace("-", "_");
-        let js_file = format!("{}.js", filename);
-        let wasm_file = format!("{}_bg.wasm", filename);
-        NpmPackage {
-            name: self.package.name,
-            description: self.package.description,
-            version: self.package.version,
-            license: self.package.license,
-            repository: Repository {
-                ty: "git".to_string(),
-                url: self.package.repository,
-            },
-            files: vec![js_file, wasm_file],
-        }
-    }
-}
-
-fn create_pkg_dir(path: &str) -> Result<(), Error> {
+pub fn create_pkg_dir(path: &str) -> Result<(), Error> {
     let path_to_pkg_dir = format!("{}/pkg", path);
     fs::create_dir_all(path_to_pkg_dir)?;
     Ok(())
 }
-
-/// Generate a package.json file inside in `./pkg`.
-pub fn write_package_json(path: &str) -> Result<(), Error> {
-    create_pkg_dir(path)?;
-    let path_to_pkg_file = format!("{}/pkg/package.json", path);
-    let mut pkg_file = File::create(path_to_pkg_file)?;
-    let crate_data = read_cargo_toml(path)?;
-    let npm_data = crate_data.into_npm();
-    let npm_json = serde_json::to_string(&npm_data)?;
-    pkg_file.write_all(npm_json.as_bytes())?;
-    println!("✍️  wrote a package.json!");
-    Ok(())
-}
-
-pub fn get_crate_name(path: &str) -> Result<String, Error> {
-    Ok(read_cargo_toml(path)?.package.name)
-}

src/main.rs

@@ -3,7 +3,7 @@ extern crate failure;
 extern crate quicli;
 extern crate wasm_pack;
 
-use wasm_pack::{build, bindgen, readme};
+use wasm_pack::{bindgen, build, manifest, readme};
 
 use quicli::prelude::*;
 
@@ -38,10 +38,11 @@ main!(|args: Cli, log_level: verbosity| match args.cmd {
         };
         build::rustup_add_wasm_target();
         build::cargo_build_wasm(&crate_path);
-        wasm_pack::write_package_json(&crate_path)?;
+        wasm_pack::create_pkg_dir(&crate_path)?;
+        manifest::write_package_json(&crate_path)?;
         readme::copy_from_crate(&crate_path)?;
         bindgen::cargo_install_wasm_bindgen();
-        let name = wasm_pack::get_crate_name(&crate_path)?;
+        let name = manifest::get_crate_name(&crate_path)?;
         bindgen::wasm_bindgen_build(&crate_path, &name);
     }
     Command::Pack { .. } => {

src/manifest.rs

@@ -0,0 +1,82 @@
+use std::fs::File;
+use std::io::prelude::*;
+
+use failure::Error;
+use serde_json;
+use toml;
+
+#[derive(Deserialize)]
+struct CargoManifest {
+    package: CargoPackage,
+}
+
+#[derive(Deserialize)]
+struct CargoPackage {
+    name: String,
+    description: String,
+    version: String,
+    license: String,
+    repository: String,
+}
+
+#[derive(Serialize)]
+struct NpmPackage {
+    name: String,
+    description: String,
+    version: String,
+    license: String,
+    repository: Repository,
+    files: Vec<String>,
+}
+
+#[derive(Serialize)]
+struct Repository {
+    #[serde(rename = "type")]
+    ty: String,
+    url: String,
+}
+
+fn read_cargo_toml(path: &str) -> Result<CargoManifest, Error> {
+    let path_to_manifest = format!("{}/Cargo.toml", path);
+    println!("👩<200d>🍳  reading {}", path_to_manifest);
+    let mut cargo_file = File::open(path_to_manifest)?;
+    let mut cargo_contents = String::new();
+    cargo_file.read_to_string(&mut cargo_contents)?;
+
+    Ok(toml::from_str(&cargo_contents)?)
+}
+
+impl CargoManifest {
+    fn into_npm(self) -> NpmPackage {
+        let filename = self.package.name.replace("-", "_");
+        let js_file = format!("{}.js", filename);
+        let wasm_file = format!("{}_bg.wasm", filename);
+        NpmPackage {
+            name: self.package.name,
+            description: self.package.description,
+            version: self.package.version,
+            license: self.package.license,
+            repository: Repository {
+                ty: "git".to_string(),
+                url: self.package.repository,
+            },
+            files: vec![js_file, wasm_file],
+        }
+    }
+}
+
+/// Generate a package.json file inside in `./pkg`.
+pub fn write_package_json(path: &str) -> Result<(), Error> {
+    let path_to_pkg_file = format!("{}/pkg/package.json", path);
+    let mut pkg_file = File::create(path_to_pkg_file)?;
+    let crate_data = read_cargo_toml(path)?;
+    let npm_data = crate_data.into_npm();
+    let npm_json = serde_json::to_string(&npm_data)?;
+    pkg_file.write_all(npm_json.as_bytes())?;
+    println!("✍️  wrote a package.json!");
+    Ok(())
+}
+
+pub fn get_crate_name(path: &str) -> Result<String, Error> {
+    Ok(read_cargo_toml(path)?.package.name)
+}

tests/manifest.rs

@@ -1,30 +1,32 @@
 extern crate dir_diff;
 extern crate wasm_pack;
 
+use wasm_pack::manifest;
+
 #[test]
 fn it_gets_the_crate_name_default_path() {
-    assert!(wasm_pack::get_crate_name(".").is_ok());
-    assert_eq!(wasm_pack::get_crate_name(".").unwrap(), "wasm-pack");
+    assert!(manifest::get_crate_name(".").is_ok());
+    assert_eq!(manifest::get_crate_name(".").unwrap(), "wasm-pack");
 }
 
 #[test]
 fn it_gets_the_crate_name_provided_path() {
-    assert!(wasm_pack::get_crate_name("./examples/js-hello-world").is_ok());
+    assert!(manifest::get_crate_name("./examples/js-hello-world").is_ok());
     assert_eq!(
-        wasm_pack::get_crate_name("./examples/js-hello-world").unwrap(),
+        manifest::get_crate_name("./examples/js-hello-world").unwrap(),
         "js-hello-world"
     );
 }
 
 #[test]
 fn it_creates_a_package_json_default_path() {
-    assert!(wasm_pack::write_package_json(".").is_ok());
+    assert!(manifest::write_package_json(".").is_ok());
     assert!(!dir_diff::is_different("./pkg", "./test/fixtures/package-json").unwrap());
 }
 
 #[test]
 fn it_creates_a_package_json_provided_path() {
-    assert!(wasm_pack::write_package_json("./examples/js-hello-world").is_ok());
+    assert!(manifest::write_package_json("./examples/js-hello-world").is_ok());
     assert!(!dir_diff::is_different(
         "./examples/js-hello-world/pkg",
         "./test/fixtures/package-json"