1 files changed, 103 insertions, 0 deletions
diff --git a/vendor/clap/src/util/color.rs b/vendor/clap/src/util/color.rs
new file mode 100644
index 000000000..4d59b2eb2
--- /dev/null
+++ b/vendor/clap/src/util/color.rs
@@ -0,0 +1,103 @@
+use crate::builder::PossibleValue;
+use crate::derive::ValueEnum;
+
+/// Represents the color preferences for program output
+#[derive(Debug, Copy, Clone, Eq, PartialEq)]
+pub enum ColorChoice {
+    /// Enables colored output only when the output is going to a terminal or TTY.
+    ///
+    /// **NOTE:** This is the default behavior of `clap`.
+    ///
+    /// # Platform Specific
+    ///
+    /// This setting only applies to Unix, Linux, and macOS (i.e. non-Windows platforms).
+    ///
+    /// # Examples
+    ///
+    #[cfg_attr(not(feature = "color"), doc = " ```ignore")]
+    #[cfg_attr(feature = "color", doc = " ```no_run")]
+    /// # use clap::{Command, ColorChoice};
+    /// Command::new("myprog")
+    ///     .color(ColorChoice::Auto)
+    ///     .get_matches();
+    /// ```
+    Auto,
+
+    /// Enables colored output regardless of whether or not the output is going to a terminal/TTY.
+    ///
+    /// # Platform Specific
+    ///
+    /// This setting only applies to Unix, Linux, and macOS (i.e. non-Windows platforms).
+    ///
+    /// # Examples
+    ///
+    #[cfg_attr(not(feature = "color"), doc = " ```ignore")]
+    #[cfg_attr(feature = "color", doc = " ```no_run")]
+    /// # use clap::{Command, ColorChoice};
+    /// Command::new("myprog")
+    ///     .color(ColorChoice::Always)
+    ///     .get_matches();
+    /// ```
+    Always,
+
+    /// Disables colored output no matter if the output is going to a terminal/TTY, or not.
+    ///
+    /// # Platform Specific
+    ///
+    /// This setting only applies to Unix, Linux, and macOS (i.e. non-Windows platforms)
+    ///
+    /// # Examples
+    ///
+    #[cfg_attr(not(feature = "color"), doc = " ```ignore")]
+    #[cfg_attr(feature = "color", doc = " ```no_run")]
+    /// # use clap::{Command, ColorChoice};
+    /// Command::new("myprog")
+    ///     .color(ColorChoice::Never)
+    ///     .get_matches();
+    /// ```
+    Never,
+}
+
+impl Default for ColorChoice {
+    fn default() -> Self {
+        Self::Auto
+    }
+}
+
+impl std::fmt::Display for ColorChoice {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        self.to_possible_value()
+            .expect("no values are skipped")
+            .get_name()
+            .fmt(f)
+    }
+}
+
+impl std::str::FromStr for ColorChoice {
+    type Err = String;
+
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
+        for variant in Self::value_variants() {
+            if variant.to_possible_value().unwrap().matches(s, false) {
+                return Ok(*variant);
+            }
+        }
+        Err(format!("invalid variant: {}", s))
+    }
+}
+
+impl ValueEnum for ColorChoice {
+    fn value_variants<'a>() -> &'a [Self] {
+        &[Self::Auto, Self::Always, Self::Never]
+    }
+
+    fn to_possible_value(&self) -> Option<PossibleValue> {
+        Some(match self {
+            Self::Auto => {
+                PossibleValue::new("auto").help("Use colored output if writing to a terminal/TTY")
+            }
+            Self::Always => PossibleValue::new("always").help("Always use colored output"),
+            Self::Never => PossibleValue::new("never").help("Never use colored output"),
+        })
+    }
+}