fpr_cli/
i.rs

1use crate::com::*;
2
3#[derive(Clone, Debug, Default)]
4pub struct FileExist {
5    pub p: PathBuf,
6    pub s: String,
7}
8#[derive(Clone, Debug, Default)]
9pub struct DirExist {
10    pub p: PathBuf,
11    pub s: String,
12}
13
14macro_rules! from_str {
15    ($a:ty) => {
16        impl<'a> Parse<'a> for $a {
17            fn parse(i: Arg) -> Result<Self, ErrVal> {
18                <$a>::from_str(i).map_err(|e| ErrVal::Err {
19                    input: i.into(),
20                    typename: Self::desc().into(),
21                    error: format!("{e}"),
22                })
23            }
24
25            fn desc() -> &'static str {
26                stringify!($a)
27            }
28        }
29    };
30}
31
32from_str!(i8);
33from_str!(i16);
34from_str!(i32);
35from_str!(i64);
36from_str!(i128);
37from_str!(u8);
38from_str!(u16);
39from_str!(u32);
40from_str!(u64);
41from_str!(u128);
42from_str!(f32);
43from_str!(f64);
44from_str!(String);
45from_str!(bool);
46from_str!(char);
47from_str!(usize);
48from_str!(isize);
49
50fn file_exist(i: &str) -> Result<PathBuf, String> {
51    let p = PathBuf::from_str(i).map_err(|e| e.to_string())?;
52    if !p.exists() {
53        return Err(format!("Does not exist"));
54    };
55    if !p.is_file() {
56        return Err(format!("Not a file"));
57    };
58    Ok(p)
59}
60
61impl<'a> Parse<'a> for FileExist {
62    fn parse(i: Arg) -> Result<Self, ErrVal> {
63        match file_exist(i) {
64            Ok(p) => Ok(FileExist { p, s: i.to_owned() }),
65            Err(e) => Err(ErrVal::Err {
66                input: i.into(),
67                typename: Self::desc().into(),
68                error: e,
69            }),
70        }
71    }
72
73    fn desc() -> &'static str {
74        stringify!(FileExist)
75    }
76}
77
78fn dir_exist(i: &str) -> Result<PathBuf, String> {
79    let p = PathBuf::from_str(i).map_err(|e| e.to_string())?;
80    if !p.exists() {
81        return Err(format!("Does not exist"));
82    };
83    if !p.is_dir() {
84        return Err(format!("Not a dir"));
85    };
86    Ok(p)
87}
88
89impl<'a> Parse<'a> for DirExist {
90    fn parse(i: Arg) -> Result<Self, ErrVal> {
91        match dir_exist(i) {
92            Ok(p) => Ok(DirExist { p, s: i.to_owned() }),
93            Err(e) => Err(ErrVal::Err {
94                input: i.into(),
95                typename: Self::desc().into(),
96                error: e,
97            }),
98        }
99    }
100
101    fn desc() -> &'static str {
102        stringify!(DirExist)
103    }
104}
fpr_cli/i.rs

fpr_cli/
i.rs
