Add support for channels more broadly

Author: Brendan Molloy

Cargo.toml

@@ -2,19 +2,22 @@
 name = "pahkat"
 version = "0.6.0"
 authors = ["Brendan Molloy <brendan@bbqsrc.net>"]
+edition = "2018"
 
 [[bin]]
 name = "pahkat"
 path = "src/main.rs"
 required-features = ["binaries"]
 
 [dependencies]
-clap = { version = "*", optional = true }
-termcolor = { version = "0.3", optional = true }
+clap = { version = "2.32.0", optional = true }
+dialoguer = { version = "0.3.0", optional = true }
+termcolor = { version = "1.0.4", optional = true }
 pathdiff = { version = "0.1", optional = true }
-serde = "*"
-serde_derive = "*"
-serde_json = "*"
+url = { version = "1.7.2", optional = true}
+serde = "1.0.87"
+serde_derive = "1.0.87"
+serde_json = "1.0.38"
 
 [features]
-binaries = ["clap", "termcolor", "pathdiff"]
+binaries = ["clap", "termcolor", "pathdiff", "dialoguer", "url"]

src/cli.rs

@@ -2,79 +2,55 @@ use std::io;
 use std::io::Write;
 use std::collections::BTreeMap;
 use termcolor::{Color, ColorChoice, ColorSpec, StandardStream, WriteColor};
-
-#[cfg(target_os = "windows")]
-pub const INPUT_DEFAULT_LEN: usize = 2;
-#[cfg(not(target_os = "windows"))] 
-pub const INPUT_DEFAULT_LEN: usize = 1;
+use dialoguer::{Confirmation, Input, Checkboxes, Select, theme::ColorfulTheme};
 
 pub fn progress(color: Color, first: &str, rest: &str) -> Result<(), io::Error> {
-    let mut stdout = StandardStream::stdout(ColorChoice::Always);
-    try!(stdout.set_color(ColorSpec::new().set_fg(Some(color))
+    let mut stderr = StandardStream::stderr(ColorChoice::Always);
+    stderr.set_color(ColorSpec::new().set_fg(Some(color))
         .set_intense(true)
-        .set_bold(true)));
-    try!(write!(&mut stdout, "{:>12}", first));
-    stdout.reset()?;
-    writeln!(&mut stdout, " {}", rest)?;
+        .set_bold(true))?;
+    write!(&mut stderr, "{:>12}", first)?;
+    stderr.reset()?;
+    writeln!(&mut stderr, " {}", rest)?;
     Ok(())
 }
 
 pub fn prompt_question(prompt: &str, default: bool) -> bool {
-    let mut stdout = StandardStream::stdout(ColorChoice::Always);
-    stdout.set_color(ColorSpec::new().set_fg(Some(Color::Cyan))).unwrap();
-    write!(&mut stdout, "{}? ", prompt).unwrap();
-    stdout.reset().unwrap();
-
-    print!("({}) ", if default { "yes" } else { "no" });
-
-    let _ = io::stdout().flush();
-    let mut input = String::new();
-
-    fn parse(it: &str) -> bool {
-        let lower = it.to_lowercase();
-
-        if lower == "y" || lower == "yes" {
-            return true;
-        }
-
-        false
-    }
-
-    match io::stdin().read_line(&mut input) {
-        Ok(n) => {
-            match n {
-                0 => false,
-                INPUT_DEFAULT_LEN => default,
-                _ => parse(input.trim())
-            }
-        }
-        Err(error) => panic!(error)
-    }
+    Confirmation::with_theme(&ColorfulTheme::default())
+        .with_text(prompt)
+        .default(default)
+        .interact()
+        .unwrap_or(default)
 }
 
 pub fn prompt_line(prompt: &str, default: &str) -> Option<String> {
-    let mut stdout = StandardStream::stdout(ColorChoice::Always);
-    stdout.set_color(ColorSpec::new().set_fg(Some(Color::Cyan))).unwrap();
-    write!(&mut stdout, "{}: ", prompt).unwrap();
-    stdout.reset().unwrap();
-    
-    if default != "" {
-        print!("({}) ", default);
-    }
-    
-    let _ = io::stdout().flush();
-    let mut input = String::new();
+    Some(Input::with_theme(&ColorfulTheme::default())
+        .with_prompt(prompt)
+        .default(default.to_string())
+        .interact()
+        .unwrap_or(default.to_string())
+        .to_string())
+}
 
-    match io::stdin().read_line(&mut input) {
-        Ok(n) => {
-            match n {
-                0 => None,
-                INPUT_DEFAULT_LEN => Some(default.to_owned()),
-                _ => Some(input.trim().to_owned())
-            }
-        }
-        Err(error) => panic!(error)
-    }
+pub fn prompt_multi_select(prompt: &str, options: &[&str]) -> Vec<String> {
+    Checkboxes::with_theme(&ColorfulTheme::default())
+        .with_prompt(prompt)
+        .items(options)
+        .interact()
+        .unwrap_or(vec![])
+        .into_iter()
+        .map(|i| options[i].to_string())
+        .collect()
+}
+
+pub fn prompt_select(prompt: &str, options: &[String], default: usize) -> String {
+    Select::with_theme(&ColorfulTheme::default())
+        .with_prompt(prompt)
+        .items(options)
+        .default(default)
+        .interact()
+        .map(|i| options[i].to_string())
+        .unwrap_or_else(|_| options[default].to_string())
 }
 
 pub fn parse_platform_list(vec: &[String]) -> BTreeMap<String, String> {