1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131

use crate::{Action, Context, Flag};

/// Application command type
pub struct Command {
    /// Command name
    pub name: String,
    /// Command usage
    pub usage: String,
    /// Command action
    pub action: Action,
    /// Action flags
    pub flags: Option<Vec<Flag>>,
}

impl Default for Command {
    fn default() -> Self {
        Self {
            name: "".to_string(),
            usage: "".to_string(),
            action: |c: &Context| println!("{:?}", c.args),
            flags: None,
        }
    }
}

impl Command {
    /// Create new instance of `Command`
    ///
    /// Example
    ///
    /// ```
    /// use seahorse::Command;
    ///
    /// let command = Command::new();
    /// ```
    pub fn new() -> Self {
        Self::default()
    }

    /// Set name of the command
    ///
    /// Example
    ///
    /// ```
    /// use seahorse::Command;
    ///
    /// let command = Command::new()
    ///     .name("cmd");
    /// ```
    pub fn name<T: Into<String>>(mut self, name: T) -> Self {
        self.name = name.into();
        self
    }

    /// Set usage of the command
    ///
    /// Example
    ///
    /// ```
    /// use seahorse::Command;
    ///
    /// let command = Command::new()
    ///     .usage("cli cmd [arg]");
    /// ```
    pub fn usage<T: Into<String>>(mut self, usage: T) -> Self {
        self.usage = usage.into();
        self
    }

    /// Set action of the command
    ///
    /// Example
    ///
    /// ```
    /// use seahorse::{Command, Context, Action};
    ///
    /// let action: Action = |c: &Context| println!("{:?}", c.args);
    /// let command = Command::new()
    ///     .action(action);
    /// ```
    pub fn action(mut self, action: Action) -> Self {
        self.action = action;
        self
    }

    /// Set flag of the command
    ///
    /// Example
    ///
    /// ```
    /// use seahorse::{Command, Flag, FlagType};
    ///
    /// let command = Command::new()
    ///     .flag(Flag::new("bool", "cli [arg] --bool", FlagType::Bool))
    ///     .flag(Flag::new("int", "cli [arg] --int [int]", FlagType::Int));
    /// ```
    pub fn flag(mut self, flag: Flag) -> Self {
        if let Some(ref mut flags) = self.flags {
            (*flags).push(flag);
        } else {
            self.flags = Some(vec![flag]);
        }
        self
    }

    /// Run command
    /// Call this function only from `App`
    pub fn run(&self, v: Vec<String>) {
        (self.action)(&Context::new(v, self.flags.clone()))
    }
}

#[cfg(test)]
mod tests {
    use crate::{Action, Command, Context, Flag, FlagType};

    #[test]
    fn command_test() {
        let a: Action = |c: &Context| println!("Hello, {:?}", c.args);
        let c = Command::new()
            .name("hello")
            .usage("test hello user")
            .action(a)
            .flag(Flag::new("t", "t", FlagType::Bool));

        &c.flags.unwrap()[0].value(&vec!["--hoge".to_string()]);

        assert_eq!(c.name, "hello".to_string());
        assert_eq!(c.usage, "test hello user".to_string());
    }
}