1 files changed, 0 insertions, 263 deletions
diff --git a/vendor/supports-color/src/lib.rs b/vendor/supports-color/src/lib.rs
deleted file mode 100644
index f877d9b..0000000
--- a/vendor/supports-color/src/lib.rs
+++ /dev/null
@@ -1,263 +0,0 @@
-//! Detects whether a terminal supports color, and gives details about that
-//! support. It takes into account the `NO_COLOR` environment variable.
-//!
-//! This crate is a Rust port of [@sindresorhus](https://github.com/sindresorhus)'
-//! [NPM package by the same name](https://npm.im/supports-color).
-//!
-//! ## Example
-//!
-//! ```rust
-//! use supports_color::Stream;
-//!
-//! if let Some(support) = supports_color::on(Stream::Stdout) {
-//!     if support.has_16m {
-//!         println!("16 million (RGB) colors are supported");
-//!     } else if support.has_256 {
-//!         println!("256-bit colors are supported.");
-//!     } else if support.has_basic {
-//!         println!("Only basic ANSI colors are supported.");
-//!     }
-//! } else {
-//!     println!("No color support.");
-//! }
-//! ```
-#![allow(clippy::bool_to_int_with_if)]
-
-use std::cell::UnsafeCell;
-use std::env;
-use std::sync::Once;
-
-/// possible stream sources
-#[derive(Clone, Copy, Debug)]
-pub enum Stream {
-    Stdout,
-    Stderr,
-}
-
-fn env_force_color() -> usize {
-    if let Ok(force) = env::var("FORCE_COLOR") {
-        match force.as_ref() {
-            "true" | "" => 1,
-            "false" => 0,
-            f => std::cmp::min(f.parse().unwrap_or(1), 3),
-        }
-    } else if let Ok(cli_clr_force) = env::var("CLICOLOR_FORCE") {
-        if cli_clr_force != "0" {
-            1
-        } else {
-            0
-        }
-    } else {
-        0
-    }
-}
-
-fn env_no_color() -> bool {
-    match as_str(&env::var("NO_COLOR")) {
-        Ok("0") | Err(_) => false,
-        Ok(_) => true,
-    }
-}
-
-// same as Option::as_deref
-fn as_str<E>(option: &Result<String, E>) -> Result<&str, &E> {
-    match option {
-        Ok(inner) => Ok(inner),
-        Err(e) => Err(e),
-    }
-}
-
-fn translate_level(level: usize) -> Option<ColorLevel> {
-    if level == 0 {
-        None
-    } else {
-        Some(ColorLevel {
-            level,
-            has_basic: true,
-            has_256: level >= 2,
-            has_16m: level >= 3,
-        })
-    }
-}
-
-fn is_a_tty(stream: Stream) -> bool {
-    use is_terminal::*;
-    match stream {
-        Stream::Stdout => std::io::stdout().is_terminal(),
-        Stream::Stderr => std::io::stderr().is_terminal(),
-    }
-}
-
-fn supports_color(stream: Stream) -> usize {
-    let force_color = env_force_color();
-    if force_color > 0 {
-        force_color
-    } else if env_no_color()
-        || as_str(&env::var("TERM")) == Ok("dumb")
-        || !(is_a_tty(stream) || env::var("IGNORE_IS_TERMINAL").map_or(false, |v| v != "0"))
-    {
-        0
-    } else if env::var("COLORTERM").map(|colorterm| check_colorterm_16m(&colorterm)) == Ok(true)
-        || env::var("TERM").map(|term| check_term_16m(&term)) == Ok(true)
-        || as_str(&env::var("TERM_PROGRAM")) == Ok("iTerm.app")
-    {
-        3
-    } else if as_str(&env::var("TERM_PROGRAM")) == Ok("Apple_Terminal")
-        || env::var("TERM").map(|term| check_256_color(&term)) == Ok(true)
-    {
-        2
-    } else if env::var("COLORTERM").is_ok()
-        || env::var("TERM").map(|term| check_ansi_color(&term)) == Ok(true)
-        || env::consts::OS == "windows"
-        || env::var("CLICOLOR").map_or(false, |v| v != "0")
-        || is_ci::uncached()
-    {
-        1
-    } else {
-        0
-    }
-}
-
-fn check_ansi_color(term: &str) -> bool {
-    term.starts_with("screen")
-        || term.starts_with("xterm")
-        || term.starts_with("vt100")
-        || term.starts_with("vt220")
-        || term.starts_with("rxvt")
-        || term.contains("color")
-        || term.contains("ansi")
-        || term.contains("cygwin")
-        || term.contains("linux")
-}
-
-fn check_colorterm_16m(colorterm: &str) -> bool {
-    colorterm == "truecolor" || colorterm == "24bit"
-}
-
-fn check_term_16m(term: &str) -> bool {
-    term.ends_with("direct") || term.ends_with("truecolor")
-}
-
-fn check_256_color(term: &str) -> bool {
-    term.ends_with("256") || term.ends_with("256color")
-}
-
-/**
-Returns a [ColorLevel] if a [Stream] supports terminal colors.
-*/
-pub fn on(stream: Stream) -> Option<ColorLevel> {
-    translate_level(supports_color(stream))
-}
-
-struct CacheCell(UnsafeCell<Option<ColorLevel>>);
-
-unsafe impl Sync for CacheCell {}
-
-static INIT: [Once; 2] = [Once::new(), Once::new()];
-static ON_CACHE: [CacheCell; 2] = [
-    CacheCell(UnsafeCell::new(None)),
-    CacheCell(UnsafeCell::new(None)),
-];
-
-macro_rules! assert_stream_in_bounds {
-    ($($variant:ident)*) => {
-        $(
-            const _: () = [(); 2][Stream::$variant as usize];
-        )*
-    };
-}
-
-// Compile-time assertion that the below indexing will never panic
-assert_stream_in_bounds!(Stdout Stderr);
-
-/**
-Returns a [ColorLevel] if a [Stream] supports terminal colors, caching the result to
-be returned from then on.
-
-If you expect your environment to change between calls, use [`on`]
-*/
-pub fn on_cached(stream: Stream) -> Option<ColorLevel> {
-    let stream_index = stream as usize;
-    INIT[stream_index].call_once(|| unsafe {
-        *ON_CACHE[stream_index].0.get() = translate_level(supports_color(stream));
-    });
-
-    unsafe { *ON_CACHE[stream_index].0.get() }
-}
-
-/**
-Color level support details.
-
-This type is returned from [on]. See documentation for its fields for more details.
-*/
-#[derive(Debug, Clone, Copy, Eq, PartialEq, Hash)]
-pub struct ColorLevel {
-    level: usize,
-    /// Basic ANSI colors are supported.
-    pub has_basic: bool,
-    /// 256-bit colors are supported.
-    pub has_256: bool,
-    /// 16 million (RGB) colors are supported.
-    pub has_16m: bool,
-}
-
-#[cfg(test)]
-mod tests {
-    use std::sync::Mutex;
-
-    use super::*;
-
-    // needed to prevent race conditions when mutating the environment
-    static TEST_LOCK: Mutex<()> = Mutex::new(());
-
-    fn set_up() {
-        // clears process env variable
-        env::vars().for_each(|(k, _v)| env::remove_var(k));
-    }
-
-    #[test]
-    #[cfg_attr(miri, ignore)]
-    fn test_empty_env() {
-        let _test_guard = TEST_LOCK.lock().unwrap();
-        set_up();
-
-        assert_eq!(on(Stream::Stdout), None);
-    }
-
-    #[test]
-    #[cfg_attr(miri, ignore)]
-    fn test_clicolor_ansi() {
-        let _test_guard = TEST_LOCK.lock().unwrap();
-        set_up();
-
-        env::set_var("IGNORE_IS_TERMINAL", "1");
-        env::set_var("CLICOLOR", "1");
-        let expected = Some(ColorLevel {
-            level: 1,
-            has_basic: true,
-            has_256: false,
-            has_16m: false,
-        });
-        assert_eq!(on(Stream::Stdout), expected);
-
-        env::set_var("CLICOLOR", "0");
-        assert_eq!(on(Stream::Stdout), None);
-    }
-
-    #[test]
-    #[cfg_attr(miri, ignore)]
-    fn test_clicolor_force_ansi() {
-        let _test_guard = TEST_LOCK.lock().unwrap();
-        set_up();
-
-        env::set_var("CLICOLOR", "0");
-        env::set_var("CLICOLOR_FORCE", "1");
-        let expected = Some(ColorLevel {
-            level: 1,
-            has_basic: true,
-            has_256: false,
-            has_16m: false,
-        });
-        assert_eq!(on(Stream::Stdout), expected);
-    }
-}