graftfs 1.2.0

A Rust implementation of the GNU stow utility for managing dotfiles. It is a symlink farm manager that takes separate packages of software and/or data and makes them appear to be installed in the same place. Features include stow, delete, and restow operations, simulation mode, directory folding, and regex-based ignore/override patterns.
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
132
133
134
135
136

/*
 * graftfs
 * Copyright (C) 2026 Chris Tisdale
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

use crate::shell_converter_error::ShellConverterError;
use clap::builder::PossibleValue;
use clap::{Command, ValueEnum};
use clap_complete::Generator;
use std::fmt::{Display, Formatter};
use std::io::{Error, Write};

#[derive(Clone, Copy, Debug, Eq, Hash, PartialEq)]
#[allow(clippy::enum_variant_names)]
pub enum Shell {
    Bash,
    Fish,
    Elvish,
    PowerShell,
    Zsh,
    #[cfg(feature = "nushell")]
    Nushell,
}

impl TryFrom<clap_complete::Shell> for Shell {
    type Error = ShellConverterError;

    fn try_from(value: clap_complete::Shell) -> Result<Self, Self::Error> {
        match value {
            clap_complete::Shell::Bash => Ok(Self::Bash),
            clap_complete::Shell::Elvish => Ok(Self::Elvish),
            clap_complete::Shell::Fish => Ok(Self::Fish),
            clap_complete::Shell::PowerShell => Ok(Self::PowerShell),
            clap_complete::Shell::Zsh => Ok(Self::Zsh),
            _ => Err(ShellConverterError),
        }
    }
}

impl Shell {
    #[must_use]
    pub fn from_env() -> Option<Self> {
        clap_complete::Shell::from_env().and_then(|s| s.try_into().ok())
    }
}

impl ValueEnum for Shell {
    fn value_variants<'a>() -> &'a [Self] {
        &[
            Self::Bash,
            Self::Elvish,
            Self::Fish,
            Self::PowerShell,
            Self::Zsh,
            #[cfg(feature = "nushell")]
            Self::Nushell,
        ]
    }

    fn to_possible_value(&self) -> Option<PossibleValue> {
        Some(match self {
            Self::Bash => PossibleValue::new("bash"),
            Self::Elvish => PossibleValue::new("elvish"),
            Self::Fish => PossibleValue::new("fish"),
            Self::PowerShell => PossibleValue::new("powershell"),
            Self::Zsh => PossibleValue::new("zsh"),
            #[cfg(feature = "nushell")]
            Self::Nushell => PossibleValue::new("nushell").alias("nu"),
        })
    }
}

impl Display for Shell {
    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
        match self {
            Self::Bash => write!(f, "bash"),
            Self::Fish => write!(f, "fish"),
            Self::Elvish => write!(f, "elvish"),
            Self::PowerShell => write!(f, "powershell"),
            Self::Zsh => write!(f, "zsh"),
            #[cfg(feature = "nushell")]
            Self::Nushell => write!(f, "nushell"),
        }
    }
}

impl Generator for Shell {
    fn file_name(&self, name: &str) -> String {
        match self {
            Self::Bash => clap_complete::Shell::Bash.file_name(name),
            Self::Fish => clap_complete::Shell::Fish.file_name(name),
            Self::Elvish => clap_complete::Shell::Elvish.file_name(name),
            Self::PowerShell => clap_complete::Shell::PowerShell.file_name(name),
            Self::Zsh => clap_complete::Shell::Zsh.file_name(name),
            #[cfg(feature = "nushell")]
            Self::Nushell => clap_complete_nushell::Nushell.file_name(name),
        }
    }

    fn generate(&self, cmd: &Command, buf: &mut dyn Write) {
        match self {
            Self::Bash => clap_complete::Shell::Bash.generate(cmd, buf),
            Self::Fish => clap_complete::Shell::Fish.generate(cmd, buf),
            Self::Elvish => clap_complete::Shell::Elvish.generate(cmd, buf),
            Self::PowerShell => clap_complete::Shell::PowerShell.generate(cmd, buf),
            Self::Zsh => clap_complete::Shell::Zsh.generate(cmd, buf),
            #[cfg(feature = "nushell")]
            Self::Nushell => clap_complete_nushell::Nushell.generate(cmd, buf),
        }
    }

    fn try_generate(&self, cmd: &Command, buf: &mut dyn Write) -> Result<(), Error> {
        match self {
            Self::Bash => clap_complete::Shell::Bash.try_generate(cmd, buf),
            Self::Fish => clap_complete::Shell::Fish.try_generate(cmd, buf),
            Self::Elvish => clap_complete::Shell::Elvish.try_generate(cmd, buf),
            Self::PowerShell => clap_complete::Shell::PowerShell.try_generate(cmd, buf),
            Self::Zsh => clap_complete::Shell::Zsh.try_generate(cmd, buf),
            #[cfg(feature = "nushell")]
            Self::Nushell => clap_complete_nushell::Nushell.try_generate(cmd, buf),
        }
    }
}