cli: Refactor to make tests better.

src/cli.rs

@@ -0,0 +1,76 @@
+use colored::Colorize;
+use env_logger::{Builder, Env};
+
+pub const USAGE: &str = "
+
+Usage:
+    rookeries (-h | --help)
+    rookeries --version
+    rookeries init [<project>] [-q | --quiet | -v | --verbose]
+    rookeries build [<project>] [-q | --quiet | -v | --verbose]
+    rookeries serve [<project>] [--port=<port>] [-q | --quiet | -v | --verbose]
+
+Options:
+    -h --help       Show this help screen.
+    --version       Show version of the app.
+    --port=<port>   The port number to serve a built site on [defaults: 8000].
+    -q, --quiet     No output printed to console.
+    -v, --verbose   Use verbose output.
+
+Commands:
+    init [<project>]    Initialize a project in the selected directory [defaults: .].
+    build [<project>]   Builds the project into a static site [defaults: .].
+    serve [<project>]   Serves the static site built from the project [defaults: .].
+";
+
+const ROOKERIES_LOG_ENV: &str = "ROOKERIES_LOG_LEVEL";
+const ROOKERIES_LOG_DEFAULT: &str = "error,rookeries=info,actix_web=info";
+const ROOKERIES_LOG_VERBOSE: &str = "debug,rookeries=debug,actix_web=debug";
+
+#[derive(Debug, Deserialize)]
+pub struct Args {
+    pub flag_version: bool,
+    pub arg_project: Option<String>,
+    pub cmd_build: bool,
+    pub cmd_init: bool,
+    pub cmd_serve: bool,
+    pub flag_port: u16,
+    pub flag_quiet: bool,
+    pub flag_verbose: bool,
+}
+
+pub fn initialize_logging(args: &Args) {
+    if args.flag_quiet {
+        return;
+    }
+
+    let logging_defaults = if args.flag_verbose {
+        ROOKERIES_LOG_VERBOSE
+    } else {
+        ROOKERIES_LOG_DEFAULT
+    };
+
+    let env = Env::default().filter_or(ROOKERIES_LOG_ENV, logging_defaults);
+    let mut builder = Builder::from_env(env);
+    builder
+        .default_format_level(false)
+        .default_format_timestamp(false)
+        .default_format_module_path(false);
+    builder.init();
+}
+
+pub fn header_message(message: &str) {
+    info!("");
+    info!("{}  {}", "▶".bright_blue(), message);
+}
+
+pub fn success_message(message: &str) {
+    info!("    {}  {}", "✔".green(), message);
+}
+
+pub fn caution_message(message: &str) {
+    info!("    {}  {}", "✶".yellow(), message);
+}
+pub fn details_message(message: &str) {
+    debug!("    {}  {}", "➜".yellow(), message);
+}

src/files.rs

@@ -1,5 +1,4 @@
-use crate::errors::RookeriesError;
-use crate::success_message;
+use crate::{cli::success_message, errors::RookeriesError};
 use colored::Colorize;
 use copy_dir::copy_dir;
 use directories::ProjectDirs;

src/lib.rs

@@ -10,13 +10,12 @@ extern crate serde_json;
 extern crate uuid;
 extern crate zip;
 
-use std::collections::HashMap;
-use std::default::Default;
+use std::{collections::HashMap, default::Default};
 
 use chrono::{DateTime, Utc};
-use colored::Colorize;
 use serde_json::Value;
 
+pub mod cli;
 pub mod errors;
 pub mod files;
 pub mod template;
@@ -57,19 +56,3 @@ impl Default for Site {
         }
     }
 }
-
-pub fn header_message(message: &str) {
-    info!("");
-    info!("{}  {}", "▶".bright_blue(), message);
-}
-
-pub fn success_message(message: &str) {
-    info!("    {}  {}", "✔".green(), message);
-}
-
-pub fn caution_message(message: &str) {
-    info!("    {}  {}", "✶".yellow(), message);
-}
-pub fn details_message(message: &str) {
-    debug!("    {}  {}", "➜".yellow(), message);
-}

src/main.rs

@@ -1,5 +1,3 @@
-#[macro_use]
-extern crate serde_derive;
 extern crate chrono;
 extern crate copy_dir;
 extern crate docopt;
@@ -16,84 +14,36 @@ extern crate toml;
 
 extern crate rookeries;
 
-use actix_web::middleware::Logger;
-use actix_web::{App, HttpServer};
+use actix_web::{middleware::Logger, App, HttpServer};
 use chrono::prelude::*;
 use colored::Colorize;
 use docopt::Docopt;
-use env_logger::{Builder, Env};
-use rookeries::errors::{fatal_error, RookeriesError};
-use rookeries::files::{
-    build_path, copy_directory, copy_file, create_directory, get_rookeries_home_cache_dir, FileType,
+
+use rookeries::{
+    cli::caution_message,
+    cli::header_message,
+    cli::initialize_logging,
+    cli::success_message,
+    cli::Args,
+    cli::USAGE,
+    errors::{fatal_error, RookeriesError},
+    files::{
+        build_path, copy_directory, copy_file, create_directory, get_rookeries_home_cache_dir,
+        FileType,
+    },
+    template, Page, Site,
 };
-use rookeries::template;
-use rookeries::{caution_message, header_message, success_message, Page, Site};
 use serde_json::Value;
-use std::collections::HashMap;
-use std::ffi::OsString;
-use std::fs::{read_dir, read_to_string, remove_dir_all, write};
-use std::path::{Path, PathBuf};
-use std::process::Command;
+use std::{
+    collections::HashMap,
+    ffi::OsString,
+    fs::{read_dir, read_to_string, remove_dir_all, write},
+    path::{Path, PathBuf},
+    process::Command,
+};
 
-const USAGE: &str = "
-
-Usage:
-    rookeries (-h | --help)
-    rookeries --version
-    rookeries init [<project>] [-q | --quiet | -v | --verbose]
-    rookeries build [<project>] [-q | --quiet | -v | --verbose]
-    rookeries serve [<project>] [--port=<port>] [-q | --quiet | -v | --verbose]
-
-Options:
-    -h --help       Show this help screen.
-    --version       Show version of the app.
-    --port=<port>   The port number to serve a built site on [defaults: 8000].
-    -q, --quiet     No output printed to console.
-    -v, --verbose   Use verbose output.
-
-Commands:
-    init [<project>]    Initialize a project in the selected directory [defaults: .].
-    build [<project>]   Builds the project into a static site [defaults: .].
-    serve [<project>]   Serves the static site built from the project [defaults: .].
-";
-
-const ROOKERIES_LOG_ENV: &str = "ROOKERIES_LOG_LEVEL";
-const ROOKERIES_LOG_DEFAULT: &str = "error,rookeries=info,actix_web=info";
-const ROOKERIES_LOG_VERBOSE: &str = "debug,rookeries=debug,actix_web=debug";
 const ROOKERIES_UNKNOWN_PLACEHOLDER: &str = "???";
 
-#[derive(Debug, Deserialize)]
-struct Args {
-    flag_version: bool,
-    arg_project: Option<String>,
-    cmd_build: bool,
-    cmd_init: bool,
-    cmd_serve: bool,
-    flag_port: u16,
-    flag_quiet: bool,
-    flag_verbose: bool,
-}
-
-fn initialize_logging(args: &Args) {
-    if args.flag_quiet {
-        return;
-    }
-
-    let logging_defaults = if args.flag_verbose {
-        ROOKERIES_LOG_VERBOSE
-    } else {
-        ROOKERIES_LOG_DEFAULT
-    };
-
-    let env = Env::default().filter_or(ROOKERIES_LOG_ENV, logging_defaults);
-    let mut builder = Builder::from_env(env);
-    builder
-        .default_format_level(false)
-        .default_format_timestamp(false)
-        .default_format_module_path(false);
-    builder.init();
-}
-
 fn get_project_directory(args: &Args) -> std::result::Result<PathBuf, RookeriesError> {
     let project_directory = match &args.arg_project {
         None => String::from("."),

src/template.rs

@@ -1,7 +1,8 @@
 use crate::files::FileType;
 use crate::{
-    caution_message, details_message, errors::RookeriesError, files::get_rookeries_home_cache_dir,
-    header_message, success_message,
+    cli::{caution_message, details_message, header_message, success_message},
+    errors::RookeriesError,
+    files::get_rookeries_home_cache_dir,
 };
 use colored::Colorize;
 use std::fs;

tests/test_cli_interaction.rs

@@ -27,27 +27,7 @@ fn test_version_message_returned() {
 
 #[test]
 fn test_help_screen_returned() {
-    // TODO: Breakout usage string into a cli library module.
-    let expected_output = "Usage:
-    rookeries (-h | --help)
-    rookeries --version
-    rookeries init [<project>] [-q | --quiet | -v | --verbose]
-    rookeries build [<project>] [-q | --quiet | -v | --verbose]
-    rookeries serve [<project>] [--port=<port>] [-q | --quiet | -v | --verbose]
-
-Options:
-    -h --help       Show this help screen.
-    --version       Show version of the app.
-    --port=<port>   The port number to serve a built site on [defaults: 8000].
-    -q, --quiet     No output printed to console.
-    -v, --verbose   Use verbose output.
-
-Commands:
-    init [<project>]    Initialize a project in the selected directory [defaults: .].
-    build [<project>]   Builds the project into a static site [defaults: .].
-    serve [<project>]   Serves the static site built from the project [defaults: .].
-"
-    .to_string();
+    let expected_output = rookeries::cli::USAGE.trim_start().to_string();
 
     let actual_output = Command::new("cargo")
         .args(&["run", "--", "--help"])