feat(pbar): Add global progress bar to write to

This commit allows us to have a global progress bar to write data to
giving us the following benefits:

- Consistent ways to handle types of messages such as errors and
  warnings
- Easy interface to add progress bars of various types
- Easy to maintain, add new types of bars, or more while encapsulating
  the login in a single module

Cargo.lock

@@ -638,6 +638,7 @@ dependencies = [
  "console 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "failure 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "indicatif 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "quicli 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.27 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.27 (registry+https://github.com/rust-lang/crates.io-index)",

Cargo.toml

@@ -16,3 +16,4 @@ serde = "1.0"
 serde_derive = "1.0"
 serde_json = "1.0"
 toml = "0.4"
+lazy_static = "1.0.0"

src/bindgen.rs

@@ -1,6 +1,6 @@
+use PBAR;
 use console::style;
 use emoji;
-use progressbar;
 use std::process::Command;
 
 pub fn cargo_install_wasm_bindgen() {
@@ -9,22 +9,13 @@ pub fn cargo_install_wasm_bindgen() {
         style("[6/7]").bold().dim(),
         emoji::DOWN_ARROW
     );
-    let pb = progressbar::new(step);
+    let pb = PBAR.message(&step);
     let _output = Command::new("cargo")
         .arg("install")
         .arg("wasm-bindgen")
         .output()
         .unwrap_or_else(|e| panic!("{} failed to execute process: {}", emoji::ERROR, e));
     pb.finish();
-    //if !output.status.success() {
-    //    let s = String::from_utf8_lossy(&output.stderr);
-
-    //      print!(
-    //         "{}  cargo_install_wasm_bindgen failed and stderr was:\n{}",
-    //         emoji::ERROR,
-    //         s
-    //     );
-    // }
 }
 
 pub fn wasm_bindgen_build(path: &str, name: &str) {
@@ -33,7 +24,7 @@ pub fn wasm_bindgen_build(path: &str, name: &str) {
         style("[7/7]").bold().dim(),
         emoji::RUNNER
     );
-    let pb = progressbar::new(step);
+    let pb = PBAR.message(&step);
     let binary_name = name.replace("-", "_");
     let wasm_path = format!("target/wasm32-unknown-unknown/release/{}.wasm", binary_name);
     let _output = Command::new("wasm-bindgen")
@@ -44,9 +35,4 @@ pub fn wasm_bindgen_build(path: &str, name: &str) {
         .output()
         .unwrap_or_else(|e| panic!("{} failed to execute process: {}", emoji::ERROR, e));
     pb.finish();
-    //if !output.status.success() {
-    //    let s = String::from_utf8_lossy(&output.stderr);
-
-    //    print!("  wasm_bindgen_build failed and stderr was:\n{}", emoji::ERROR, s);
-    //}
 }

src/build.rs

@@ -1,6 +1,6 @@
+use PBAR;
 use console::style;
 use emoji;
-use progressbar;
 use std::process::Command;
 
 pub fn rustup_add_wasm_target() {
@@ -9,7 +9,7 @@ pub fn rustup_add_wasm_target() {
         style("[1/7]").bold().dim(),
         emoji::TARGET
     );
-    let pb = progressbar::new(step);
+    let pb = PBAR.message(&step);
     let output = Command::new("rustup")
         .arg("target")
         .arg("add")
@@ -34,7 +34,7 @@ pub fn cargo_build_wasm(path: &str) {
         style("[2/7]").bold().dim(),
         emoji::CYCLONE
     );
-    let pb = progressbar::new(step);
+    let pb = PBAR.message(&step);
     let output = Command::new("cargo")
         .current_dir(path)
         .arg("build")

src/lib.rs

@@ -2,6 +2,8 @@ extern crate console;
 extern crate failure;
 extern crate indicatif;
 #[macro_use]
+extern crate lazy_static;
+#[macro_use]
 extern crate serde_derive;
 extern crate serde_json;
 extern crate toml;
@@ -18,6 +20,11 @@ use std::fs;
 
 use console::style;
 use failure::Error;
+use progressbar::ProgressOutput;
+
+lazy_static! {
+    pub static ref PBAR: ProgressOutput = { ProgressOutput::new() };
+}
 
 pub fn create_pkg_dir(path: &str) -> Result<(), Error> {
     let step = format!(
@@ -25,7 +32,7 @@ pub fn create_pkg_dir(path: &str) -> Result<(), Error> {
         style("[3/7]").bold().dim(),
         emoji::FOLDER
     );
-    let pb = progressbar::new(step);
+    let pb = PBAR.message(&step);
     let pkg_dir_path = format!("{}/pkg", path);
     fs::create_dir_all(pkg_dir_path)?;
     pb.finish();

src/main.rs

@@ -8,7 +8,7 @@ use std::time::Instant;
 
 use indicatif::HumanDuration;
 use quicli::prelude::*;
-use wasm_pack::{bindgen, build, emoji, manifest, npm, readme};
+use wasm_pack::{bindgen, build, emoji, manifest, npm, readme, PBAR};
 
 /// 📦 ✨  pack and publish your wasm!
 #[derive(Debug, StructOpt)]
@@ -54,16 +54,17 @@ main!(|args: Cli, log_level: verbosity| match args.cmd {
         bindgen::cargo_install_wasm_bindgen();
         let name = manifest::get_crate_name(&crate_path)?;
         bindgen::wasm_bindgen_build(&crate_path, &name);
-        println!(
+        PBAR.one_off_message(&format!(
             "{} Done in {}",
             emoji::SPARKLE,
             HumanDuration(started.elapsed())
-        );
+        ));
-        println!(
+        PBAR.one_off_message(&format!(
             "{} Your WASM pkg is ready to publish at {}/pkg",
             emoji::PACKAGE,
             &crate_path
-        )
+        ));
+        PBAR.done()?;
     }
     Command::Pack { path } => {
         let crate_path = match path {

src/manifest.rs

@@ -1,11 +1,10 @@
 use std::fs::File;
 use std::io::prelude::*;
 
+use PBAR;
 use console::style;
 use emoji;
 use failure::Error;
-use indicatif::MultiProgress;
-use progressbar;
 use serde_json;
 use toml;
 
@@ -82,40 +81,32 @@ pub fn write_package_json(path: &str, scope: Option<String>) -> Result<(), Error
         emoji::MEMO
     );
 
-    let warn = |field| {
+    let warn_fmt = |field| {
         format!(
-            "{} {}: Field {} is missing from Cargo.toml. It is not necessary, but recommended",
+            "Field {} is missing from Cargo.toml. It is not necessary, but recommended",
-            emoji::WARN,
-            style("[WARN]").bold().dim(),
             field
         )
     };
 
-    let m = MultiProgress::new();
+    let pb = PBAR.message(&step);
-    let pb = m.add(progressbar::new(step));
-
     let pkg_file_path = format!("{}/pkg/package.json", path);
     let mut pkg_file = File::create(pkg_file_path)?;
     let crate_data = read_cargo_toml(path)?;
     let npm_data = crate_data.into_npm(scope);
 
     if npm_data.description.is_none() {
-        let warn_pb = m.add(progressbar::new(warn("description")));
+        PBAR.warn(&warn_fmt("description"));
-        warn_pb.finish();
     }
     if npm_data.repository.is_none() {
-        let warn_pb = m.add(progressbar::new(warn("repository")));
+        PBAR.warn(&warn_fmt("repository"));
-        warn_pb.finish();
     }
     if npm_data.license.is_none() {
-        let warn_pb = m.add(progressbar::new(warn("license")));
+        PBAR.warn(&warn_fmt("license"));
-        warn_pb.finish();
     }
 
     let npm_json = serde_json::to_string_pretty(&npm_data)?;
     pkg_file.write_all(npm_json.as_bytes())?;
     pb.finish();
-    m.join_and_clear()?;
     Ok(())
 }
 

src/progressbar.rs

@@ -1,6 +1,51 @@
-use indicatif::{ProgressBar, ProgressStyle};
+use console::style;
+use emoji;
+use failure::Error;
+use indicatif::{MultiProgress, ProgressBar, ProgressStyle};
 
-pub fn new(msg: String) -> ProgressBar {
+pub struct ProgressOutput {
+    bar: MultiProgress,
+}
+
+impl ProgressOutput {
+    pub fn new() -> Self {
+        Self {
+            bar: MultiProgress::new(),
+        }
+    }
+
+    pub fn message(&self, message: &str) -> ProgressBar {
+        self.bar.add(Self::progressbar(message))
+    }
+
+    pub fn one_off_message(&self, message: &str) {
+        let bar = self.bar.add(Self::progressbar(message));
+        bar.finish();
+    }
+
+    pub fn warn(&self, message: &str) {
+        let warn = format!(
+            "{} {}: {}",
+            style("[WARN]").bold().dim(),
+            emoji::WARN,
+            message
+        );
+        let bar = self.bar.add(Self::progressbar(&warn));
+        bar.finish();
+    }
+
+    pub fn error(&self, message: &str) {
+        let err = format!(
+            "{} {}: {}",
+            emoji::ERROR,
+            style("[Error]").bold().dim(),
+            message
+        );
+        let bar = self.bar.add(Self::progressbar(&err));
+        bar.finish();
+    }
+
+    fn progressbar(msg: &str) -> ProgressBar {
         let pb = ProgressBar::new_spinner();
         pb.enable_steady_tick(200);
         pb.set_style(
@@ -11,3 +56,8 @@ pub fn new(msg: String) -> ProgressBar {
         pb.set_message(&msg);
         pb
     }
+
+    pub fn done(&self) -> Result<(), Error> {
+        self.bar.join_and_clear().map_err(|e| Error::from(e))
+    }
+}

src/readme.rs

@@ -1,31 +1,22 @@
 use console::style;
 use failure::Error;
-use indicatif::MultiProgress;
 use std::fs;
 
+use PBAR;
 use emoji;
-use progressbar;
 
 pub fn copy_from_crate(path: &str) -> Result<(), Error> {
-    let m = MultiProgress::new();
     let step = format!(
         "{} {}Copying over your README...",
         style("[5/7]").bold().dim(),
         emoji::DANCERS
     );
-    let pb = m.add(progressbar::new(step));
+    let pb = PBAR.message(&step);
     let crate_readme_path = format!("{}/README.md", path);
     let new_readme_path = format!("{}/pkg/README.md", path);
     if let Err(_) = fs::copy(&crate_readme_path, &new_readme_path) {
-        let warn = format!(
+        PBAR.warn("origin crate has no README");
-            "{} {}: origin crate has no README",
-            emoji::WARN,
-            style("[WARN]").bold().dim()
-        );
-        let warn_pb = m.add(progressbar::new(warn));
-        warn_pb.finish();
     };
     pb.finish();
-    m.join_and_clear()?;
     Ok(())
 }