Merge pull request #216 from csmoe/build

Split init into init and build

README.md

@@ -29,9 +29,10 @@ visiting that repo!
 
 ## 🎙️ Commands
 
+- [`init`](docs/init.md): [**Deprecated**] Initialize an npm wasm pkg from a rustwasm crate
+- [`build`](docs/build.md): Generate an npm wasm pkg from a rustwasm crate
 - [`init`](docs/init.md): Generate an npm wasm pkg from a rustwasm crate
-- [`pack`](docs/pack-and-publish.md): Create a tarball of your rustwasm pkg
+- [`pack` and `publish`](docs/pack-and-publish.md): Create a tarball of your rustwasm pkg and/or publish to a registry
-- [`publish`](docs/publish.md): Publish your rustwasm pkg to a registry
 
 ## 📝 Logging
 
@@ -89,7 +90,7 @@ check out our [contribution policy].
   ```
 
 5. Install this tool: `cargo install wasm-pack`
-6. Run `wasm-pack init`, optionally, pass a path to a dir or a scope (see above for details)
+6. Run `wasm-pack build`, optionally, pass a path to a dir or a scope (see above for details)
 7. This tool generates files in a `pkg` dir
 8. To publish to npm, run `wasm-pack publish`. You may need to login to the
   registry you want to publish to. You can login using `wasm-pack login`.

docs/build.md

@@ -0,0 +1,73 @@
+# wasm-pack build
+
+The `wasm-pack build` command creates the files neccessary for JavaScript
+interoperability and for publishing a package to npm. This involves compiling
+your code to wasm and generating a pkg folder. This pkg folder will contain the
+wasm binary, a JS wrapper file, your `README`, and a `package.json` file.
+
+## Path
+
+The `wasm-pack build` command can be given an optional path argument, e.g.:
+
+```
+wasm-pack build examples/js-hello-world
+```
+
+This path should point to a directory that contains a `Cargo.toml` file. If no
+path is given, the `build` command will run in the current directory.
+
+## Debug
+
+The init command accepts an optional `--debug` argument. This will build the
+output package using cargo's
+[default non-release profile][cargo-profile-sections-documentation]. Building
+this way is faster but applies few optimizations to the output, and enables
+debug assertions and other runtime correctness checks.
+
+The exact meaning of this flag may evolve as the platform matures.
+
+[cargo-profile-sections-documentation]: https://doc.rust-lang.org/cargo/reference/manifest.html#the-profile-sections
+
+## Target
+
+The `build` command accepts a `--target` argument. This will customize the output files
+to align with a particular type of JS module. This allows wasm-pack to generate either
+ES6 modules or CommonJS modules for use in browser and in NodeJS. Defaults to `browser`.
+The options are:
+
+```
+wasm-pack build --target nodejs
+```
+
+| Option    | Description                                                                                                     |
+|-----------|-----------------------------------------------------------------------------------------------------------------|
+| `nodejs`  | Outputs JS that uses CommonJS modules, for use with a `require` statement.                                      |
+| `browser` | Outputs JS that uses ES6 modules, primarily for use with `import` statements and/or bundlers such as `webpack`. |
+
+## Scope
+
+The init command also accepts an optional `--scope` argument. This will scope
+your package name, which is useful if your package name might conflict with
+something in the public registry. For example:
+
+```
+wasm-pack build examples/js-hello-world --scope test
+```
+
+This command would create a `package.json` file for a package called
+`@test/js-hello-world`. For more information about scoping, you can refer to
+the npm documentation [here][npm-scope-documentation].
+
+[npm-scope-documentation]: https://docs.npmjs.com/misc/scope
+
+## Mode
+
+The `build` command accepts an optional `--mode` argument.
+```
+wasm-pack build examples/js-hello-world --mode no-install
+```
+
+| Option        | Description                                                                              |
+|---------------|------------------------------------------------------------------------------------------|
+| `no-install`  | `wasm-pack init` implicitly and create wasm binding  without installing `wasm-bindgen`.  |
+| `normal`      | do all the stuffs of `no-install` with installed `wasm-bindgen`.                         |

docs/init.md

@@ -1,9 +1,9 @@
-# wasm-pack init
+# wasm-pack init(Deprecated)
 
 The `wasm-pack init` command creates the files neccessary for JavaScript
-interoperability and for publishing a package to npm. This involves compiling
+interoperability and for publishing a package to npm. This involves
-your code to wasm and generating a pkg folder. This pkg folder will contain the
+generating a pkg folder. This pkg folder will contain the
-wasm binary, a JS wrapper file, your `README`, and a `package.json` file.
+`README` and a `package.json` file.
 
 ## Path
 
@@ -46,27 +46,4 @@ This command would create a `package.json` file for a package called
 `@test/js-hello-world`. For more information about scoping, you can refer to
 the npm documentation [here][npm-scope-documentation].
 
-## Debug
-
-The init command accepts an optional `--debug` argument. This will build the
-output package using cargo's
-[default non-release profile][cargo-profile-sections-documentation]. Building
-this way is faster but applies few optimizations to the output, and enables
-debug assertions and other runtime correctness checks.
-
-The exact meaning of this flag may evolve as the platform matures.
-
 [npm-scope-documentation]: https://docs.npmjs.com/misc/scope
-[cargo-profile-sections-documentation]: https://doc.rust-lang.org/cargo/reference/manifest.html#the-profile-sections
-
-## Skipping build
-
-The init command accepts an optional `--skip-build` argument.
-
-This will deactivate those steps:
-- installing wasm target (via cargo)
-- compiling the code to wasm
-- installing wasm-bindgen (via rustup)
-- running wasm-bindgen on the built wasm
-
-Basically it will remains only the steps that update the metadata of `package.json`.

src/command/build.rs

@@ -1,8 +1,6 @@
-//! Initializing a crate for packing `.wasm`s.
-
 use bindgen;
 use build;
-use command::utils::set_crate_path;
+use command::utils::{create_pkg_dir, set_crate_path};
 use emoji;
 use error::Error;
 use indicatif::HumanDuration;
@@ -10,104 +8,85 @@ use manifest;
 use progressbar::Step;
 use readme;
 use slog::Logger;
-use std::fs;
+use std::path::PathBuf;
-use std::path::{Path, PathBuf};
 use std::time::Instant;
 use PBAR;
 
-/// Construct our `pkg` directory in the crate.
+/// Everything required to configure and run the `wasm-pack init` command.
-pub fn create_pkg_dir(path: &Path, step: &Step) -> Result<(), Error> {
+pub(crate) struct Build {
-    let msg = format!("{}Creating a pkg directory...", emoji::FOLDER);
+    pub crate_path: PathBuf,
-    PBAR.step(step, &msg);
+    pub scope: Option<String>,
-    let pkg_dir_path = path.join("pkg");
+    pub disable_dts: bool,
-    fs::create_dir_all(pkg_dir_path)?;
+    pub target: String,
-    Ok(())
+    pub debug: bool,
+    // build_config: Option<BuildConfig>,
+    pub crate_name: String,
 }
 
-/// The `InitMode` determines which mode of initialization we are running, and
+/// The `BuildMode` determines which mode of initialization we are running, and
 /// what build and install steps we perform.
-pub enum InitMode {
+pub enum BuildMode {
     /// Perform all the build and install steps.
     Normal,
-    /// Don't build the crate as a `.wasm` but do install tools and create
-    /// meta-data.
-    Nobuild,
     /// Don't install tools like `wasm-bindgen`, just use the global
     /// environment's existing versions to do builds.
     Noinstall,
 }
 
-/// Everything required to configure and run the `wasm-pack init` command.
+/// Everything required to configure and run the `wasm-pack build` command.
-pub struct Init {
+#[derive(Debug, StructOpt)]
-    crate_path: PathBuf,
+pub struct BuildOptions {
-    scope: Option<String>,
+    /// The path to the Rust crate.
-    disable_dts: bool,
+    #[structopt(parse(from_os_str))]
-    target: String,
+    pub path: Option<PathBuf>,
+
+    /// The npm scope to use in package.json, if any.
+    #[structopt(long = "scope", short = "s")]
+    pub scope: Option<String>,
+
+    #[structopt(long = "mode", short = "m", default_value = "normal")]
+    /// Sets steps to be run. [possible values: no-install, normal]
+    pub mode: String,
+
+    #[structopt(long = "no-typescript")]
+    /// By default a *.d.ts file is generated for the generated JS file, but
+    /// this flag will disable generating this TypeScript file.
+    pub disable_dts: bool,
+
+    #[structopt(long = "target", short = "t", default_value = "browser")]
+    /// Sets the target environment. [possible values: browser, nodejs]
+    pub target: String,
+
+    #[structopt(long = "debug")]
+    /// Build without --release.
     debug: bool,
-    crate_name: String,
+    // build config from manifest
+    // build_config: Option<BuildConfig>,
 }
 
-type InitStep = fn(&mut Init, &Step, &Logger) -> Result<(), Error>;
+impl From<BuildOptions> for Build {
-
+    fn from(build_opts: BuildOptions) -> Self {
-impl Init {
+        let crate_path = set_crate_path(build_opts.path);
-    /// Construct a new `Init` command.
+        let crate_name = manifest::get_crate_name(&crate_path).unwrap();
-    pub fn new(
+        // let build_config = manifest::xxx(&crate_path).xxx();
-        path: Option<PathBuf>,
+        Build {
-        scope: Option<String>,
-        disable_dts: bool,
-        target: String,
-        debug: bool,
-    ) -> Result<Init, Error> {
-        let crate_path = set_crate_path(path);
-        let crate_name = manifest::get_crate_name(&crate_path)?;
-        Ok(Init {
             crate_path,
-            scope,
+            scope: build_opts.scope,
-            disable_dts,
+            disable_dts: build_opts.disable_dts,
-            target,
+            target: build_opts.target,
-            debug,
+            debug: build_opts.debug,
+            // build_config,
             crate_name,
-        })
-    }
-
-    fn get_process_steps(mode: InitMode) -> Vec<(&'static str, InitStep)> {
-        macro_rules! steps {
-            ($($name:ident),+) => {
-                {
-                    let mut steps: Vec<(&'static str, InitStep)> = Vec::new();
-                    $(steps.push((stringify!($name), Init::$name));)*
-                    steps
-                }
-            };
-            ($($name:ident,)*) => (steps![$($name),*])
-        }
-
-        match mode {
-            InitMode::Normal => steps![
-                step_check_crate_config,
-                step_add_wasm_target,
-                step_build_wasm,
-                step_create_dir,
-                step_create_json,
-                step_copy_readme,
-                step_install_wasm_bindgen,
-                step_run_wasm_bindgen,
-            ],
-            InitMode::Nobuild => steps![step_create_dir, step_create_json, step_copy_readme,],
-            InitMode::Noinstall => steps![
-                step_check_crate_config,
-                step_build_wasm,
-                step_create_dir,
-                step_create_json,
-                step_copy_readme,
-                step_run_wasm_bindgen
-            ],
         }
     }
+}
+
+type BuildStep = fn(&mut Build, &Step, &Logger) -> Result<(), Error>;
 
-    /// Execute this `Init` command.
+impl Build {
-    pub fn process(&mut self, log: &Logger, mode: InitMode) -> Result<(), Error> {
+    /// Execute this `Build` command.
-        let process_steps = Init::get_process_steps(mode);
+    pub fn run(&mut self, log: &Logger, mode: &BuildMode) -> Result<(), Error> {
+        let process_steps = Build::get_process_steps(mode);
 
         let mut step_counter = Step::new(process_steps.len());
 
@@ -136,6 +115,39 @@ impl Init {
         Ok(())
     }
 
+    fn get_process_steps(mode: &BuildMode) -> Vec<(&'static str, BuildStep)> {
+        macro_rules! steps {
+            ($($name:ident),+) => {
+                {
+                let mut steps: Vec<(&'static str, BuildStep)> = Vec::new();
+                    $(steps.push((stringify!($name), Build::$name));)*
+                        steps
+                    }
+                };
+            ($($name:ident,)*) => (steps![$($name),*])
+        }
+        match &mode {
+            BuildMode::Normal => steps![
+                step_check_crate_config,
+                step_add_wasm_target,
+                step_build_wasm,
+                step_create_dir,
+                step_create_json,
+                step_copy_readme,
+                step_install_wasm_bindgen,
+                step_run_wasm_bindgen,
+            ],
+            BuildMode::Noinstall => steps![
+                step_check_crate_config,
+                step_build_wasm,
+                step_create_dir,
+                step_create_json,
+                step_copy_readme,
+                step_run_wasm_bindgen
+            ],
+        }
+    }
+
     fn step_check_crate_config(&mut self, step: &Step, log: &Logger) -> Result<(), Error> {
         info!(&log, "Checking crate configuration...");
         manifest::check_crate_config(&self.crate_path, step)?;
@@ -235,60 +247,3 @@ impl Init {
         Ok(())
     }
 }
-
-#[cfg(test)]
-mod test {
-    use super::*;
-
-    #[test]
-    fn init_normal_build() {
-        let steps: Vec<&str> = Init::get_process_steps(InitMode::Normal)
-            .into_iter()
-            .map(|(n, _)| n)
-            .collect();
-        assert_eq!(
-            steps,
-            [
-                "step_check_crate_config",
-                "step_add_wasm_target",
-                "step_build_wasm",
-                "step_create_dir",
-                "step_create_json",
-                "step_copy_readme",
-                "step_install_wasm_bindgen",
-                "step_run_wasm_bindgen"
-            ]
-        );
-    }
-
-    #[test]
-    fn init_skip_build() {
-        let steps: Vec<&str> = Init::get_process_steps(InitMode::Nobuild)
-            .into_iter()
-            .map(|(n, _)| n)
-            .collect();
-        assert_eq!(
-            steps,
-            ["step_create_dir", "step_create_json", "step_copy_readme"]
-        );
-    }
-
-    #[test]
-    fn init_skip_install() {
-        let steps: Vec<&str> = Init::get_process_steps(InitMode::Noinstall)
-            .into_iter()
-            .map(|(n, _)| n)
-            .collect();
-        assert_eq!(
-            steps,
-            [
-                "step_check_crate_config",
-                "step_build_wasm",
-                "step_create_dir",
-                "step_create_json",
-                "step_copy_readme",
-                "step_run_wasm_bindgen"
-            ]
-        );
-    }
-}

src/command/mod.rs

@@ -1,12 +1,12 @@
 //! CLI command structures, parsing, and execution.
 
-pub mod init;
+mod build;
 mod login;
 mod pack;
 mod publish;
 pub mod utils;
 
-use self::init::{Init, InitMode};
+use self::build::{Build, BuildMode, BuildOptions};
 use self::login::login;
 use self::pack::pack;
 use self::publish::publish;
@@ -19,34 +19,9 @@ use PBAR;
 /// The various kinds of commands that `wasm-pack` can execute.
 #[derive(Debug, StructOpt)]
 pub enum Command {
-    #[structopt(name = "init")]
+    /// 🏗️  build your npm package!
-    /// 🐣  initialize a package.json based on your compiled wasm!
+    #[structopt(name = "build", alias = "init")]
-    Init {
+    Build(BuildOptions),
-        /// The path to the Rust crate.
-        #[structopt(parse(from_os_str))]
-        path: Option<PathBuf>,
-
-        /// The npm scope to use in package.json, if any.
-        #[structopt(long = "scope", short = "s")]
-        scope: Option<String>,
-
-        #[structopt(long = "mode", short = "m", default_value = "normal")]
-        /// Sets steps to be run. [possible values: no-build, no-install, normal]
-        mode: String,
-
-        #[structopt(long = "no-typescript")]
-        /// By default a *.d.ts file is generated for the generated JS file, but
-        /// this flag will disable generating this TypeScript file.
-        disable_dts: bool,
-
-        #[structopt(long = "target", short = "t", default_value = "browser")]
-        /// Sets the target environment. [possible values: browser, nodejs]
-        target: String,
-
-        #[structopt(long = "debug")]
-        /// Build without --release.
-        debug: bool,
-    },
 
     #[structopt(name = "pack")]
     /// 🍱  create a tar of your npm package but don't publish!
@@ -102,32 +77,14 @@ pub fn run_wasm_pack(command: Command, log: &Logger) -> result::Result<(), Error
     // Run the correct command based off input and store the result of it so that we can clear
     // the progress bar then return it
     let status = match command {
-        Command::Init {
+        Command::Build(build_opts) => {
-            path,
+            info!(&log, "Running build command...");
-            scope,
+            let build_mode = match build_opts.mode.as_str() {
-            mode,
+                "no-install" => BuildMode::Noinstall,
-            disable_dts,
+                "normal" => BuildMode::Normal,
-            target,
+                _ => BuildMode::Normal,
-            debug,
-        } => {
-            info!(&log, "Running init command...");
-            info!(
-                &log,
-                "Path: {:?}, Scope: {:?}, Skip build: {}, Disable Dts: {}, Target: {}, Debug: {}",
-                &path,
-                &scope,
-                &mode,
-                &disable_dts,
-                &target,
-                debug
-            );
-            let modetype = match &*mode {
-                "no-build" => InitMode::Nobuild,
-                "no-install" => InitMode::Noinstall,
-                "normal" => InitMode::Normal,
-                _ => InitMode::Normal,
             };
-            Init::new(path, scope, disable_dts, target, debug)?.process(&log, modetype)
+            Build::from(build_opts).run(&log, &build_mode)
         }
         Command::Pack { path } => {
             info!(&log, "Running pack command...");

src/command/utils.rs

@@ -1,6 +1,11 @@
 //! Utility functions for commands.
 
+use emoji;
+use error::Error;
+use progressbar::Step;
+use std::fs;
 use std::path::{Path, PathBuf};
+use PBAR;
 
 /// If an explicit path is given, then use it, otherwise assume the current
 /// directory is the crate path.
@@ -13,6 +18,15 @@ pub fn set_crate_path(path: Option<PathBuf>) -> PathBuf {
     crate_path
 }
 
+/// Construct our `pkg` directory in the crate.
+pub fn create_pkg_dir(path: &Path, step: &Step) -> Result<(), Error> {
+    let msg = format!("{}Creating a pkg directory...", emoji::FOLDER);
+    PBAR.step(step, &msg);
+    let pkg_dir_path = path.join("pkg");
+    fs::create_dir_all(pkg_dir_path)?;
+    Ok(())
+}
+
 /// Locates the pkg directory from a specific path
 /// Returns None if unable to find the 'pkg' directory
 pub fn find_pkg_directory(path: &Path) -> Option<PathBuf> {

src/logger.rs

@@ -33,7 +33,7 @@ pub fn new(cmd: &Command, verbosity: u8) -> Result<Logger, Error> {
 /// Figure out where to stick the log based off the command arguments given
 fn log_file_path(cmd: &Command) -> PathBuf {
     let path = match cmd {
-        Command::Init { path, .. } => path,
+        Command::Build(build_opts) => &build_opts.path,
         Command::Pack { path } => path,
         Command::Publish { path } => path,
         Command::Login { .. } => &None,

src/main.rs

@@ -5,6 +5,7 @@ extern crate structopt;
 extern crate wasm_pack;
 
 use failure::Fail;
+use std::env;
 use structopt::StructOpt;
 use wasm_pack::{command::run_wasm_pack, error::Error, logger, Cli};
 
@@ -20,6 +21,11 @@ fn main() {
 }
 
 fn run() -> Result<(), Error> {
+    // Deprecate `init`
+    if let Some("init") = env::args().nth(1).as_ref().map(|arg| arg.as_str()) {
+        println!("wasm-pack init is deprecated, consider using wasm-pack build");
+    }
+
     let args = Cli::from_args();
     let log = logger::new(&args.cmd, args.verbosity)?;
     run_wasm_pack(args.cmd, &log)?;

tests/all/manifest.rs

@@ -55,7 +55,7 @@ fn it_recognizes_a_map_during_depcheck() {
 fn it_creates_a_package_json_default_path() {
     let fixture = fixture::fixture(".");
     let step = wasm_pack::progressbar::Step::new(1);
-    wasm_pack::command::init::create_pkg_dir(&fixture.path, &step).unwrap();
+    wasm_pack::command::utils::create_pkg_dir(&fixture.path, &step).unwrap();
     assert!(manifest::write_package_json(&fixture.path, &None, false, "", &step).is_ok());
     let package_json_path = &fixture.path.join("pkg").join("package.json");
     assert!(fs::metadata(package_json_path).is_ok());
@@ -83,7 +83,7 @@ fn it_creates_a_package_json_default_path() {
 fn it_creates_a_package_json_provided_path() {
     let fixture = fixture::fixture("tests/fixtures/js-hello-world");
     let step = wasm_pack::progressbar::Step::new(1);
-    wasm_pack::command::init::create_pkg_dir(&fixture.path, &step).unwrap();
+    wasm_pack::command::utils::create_pkg_dir(&fixture.path, &step).unwrap();
     assert!(manifest::write_package_json(&fixture.path, &None, false, "", &step).is_ok());
     let package_json_path = &fixture.path.join("pkg").join("package.json");
     assert!(fs::metadata(package_json_path).is_ok());
@@ -104,7 +104,7 @@ fn it_creates_a_package_json_provided_path() {
 fn it_creates_a_package_json_provided_path_with_scope() {
     let fixture = fixture::fixture("tests/fixtures/scopes");
     let step = wasm_pack::progressbar::Step::new(1);
-    wasm_pack::command::init::create_pkg_dir(&fixture.path, &step).unwrap();
+    wasm_pack::command::utils::create_pkg_dir(&fixture.path, &step).unwrap();
     assert!(
         manifest::write_package_json(&fixture.path, &Some("test".to_string()), false, "", &step)
             .is_ok()
@@ -128,7 +128,7 @@ fn it_creates_a_package_json_provided_path_with_scope() {
 fn it_creates_a_pkg_json_with_correct_files_on_node() {
     let fixture = fixture::fixture(".");
     let step = wasm_pack::progressbar::Step::new(1);
-    wasm_pack::command::init::create_pkg_dir(&fixture.path, &step).unwrap();
+    wasm_pack::command::utils::create_pkg_dir(&fixture.path, &step).unwrap();
     assert!(manifest::write_package_json(&fixture.path, &None, false, "nodejs", &step).is_ok());
     let package_json_path = &fixture.path.join("pkg").join("package.json");
     assert!(fs::metadata(package_json_path).is_ok());
@@ -157,7 +157,7 @@ fn it_creates_a_pkg_json_with_correct_files_on_node() {
 fn it_creates_a_package_json_with_correct_keys_when_types_are_skipped() {
     let fixture = fixture::fixture(".");
     let step = wasm_pack::progressbar::Step::new(1);
-    wasm_pack::command::init::create_pkg_dir(&fixture.path, &step).unwrap();
+    wasm_pack::command::utils::create_pkg_dir(&fixture.path, &step).unwrap();
     assert!(manifest::write_package_json(&fixture.path, &None, true, "", &step).is_ok());
     let package_json_path = &fixture.path.join("pkg").join("package.json");
     assert!(fs::metadata(package_json_path).is_ok());