duckscriptsdk 0.1.8

The duckscript SDK.
Documentation 
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
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170

use duckscript::types::error::{ErrorInfo, ScriptError};
use std::fs::{create_dir_all, remove_file, File};
use std::io::{Read, Write};
use std::path::Path;

#[cfg(test)]
#[path = "./io_test.rs"]
mod io_test;

pub(crate) fn get_canonical_path(path: &str) -> String {
    let path_obj = Path::new(path);

    match path_obj.canonicalize() {
        Ok(path_buf) => path_buf.to_string_lossy().into_owned(),
        _ => path.to_string(),
    }
}

pub(crate) fn get_base_name(path: &str) -> Option<String> {
    let canonical_path = get_canonical_path(path);
    let path = Path::new(&canonical_path);

    match path.file_name() {
        Some(name) => Some(name.to_string_lossy().into_owned()),
        None => None,
    }
}

pub(crate) fn get_parent_directory_name(path: &str) -> Option<String> {
    let file_path = Path::new(path);

    let directory = file_path.parent();
    match directory {
        Some(directory_path) => {
            let directory = directory_path.to_string_lossy().into_owned();

            if directory.is_empty() {
                None
            } else {
                Some(directory)
            }
        }
        None => None,
    }
}

pub(crate) fn create_directory(directory: &str) -> Result<(), String> {
    let directory_path = Path::new(directory);

    create_directory_for_path(&directory_path)
}

pub(crate) fn create_parent_directory(file: &str) -> Result<(), String> {
    match get_parent_directory_name(file) {
        Some(parent) => create_directory(&parent),
        None => Ok(()),
    }
}

fn create_directory_for_path(directory_path: &Path) -> Result<(), String> {
    if directory_path.is_dir() && directory_path.exists() {
        return Ok(());
    }

    match create_dir_all(&directory_path) {
        Ok(_) => Ok(()),
        Err(error) => Err(error.to_string()),
    }
}

pub(crate) fn read_text_file(file: &str) -> Result<String, ScriptError> {
    let file_path = Path::new(file);

    match File::open(&file_path) {
        Ok(mut fd) => {
            let mut content = String::new();
            fd.read_to_string(&mut content).unwrap();

            Ok(content)
        }
        Err(error) => Err(ScriptError {
            info: ErrorInfo::ErrorReadingFile(file.to_string(), Some(error)),
        }),
    }
}

pub(crate) fn write_text_file(file: &str, text: &str) -> Result<(), ScriptError> {
    let file_path = Path::new(file);

    // create parent directory
    match create_parent_directory(file) {
        Ok(_) => (),
        Err(_) => {
            return Err(ScriptError {
                info: ErrorInfo::Runtime(
                    format!("Error creating parent directory for file: {}", file).to_string(),
                    None,
                ),
            });
        }
    }

    match File::create(&file_path) {
        Ok(mut fd) => match fd.write_all(text.as_bytes()) {
            Err(_) => Err(ScriptError {
                info: ErrorInfo::Runtime(
                    format!("Error writing to file: {}", file).to_string(),
                    None,
                ),
            }),
            Ok(_) => match fd.sync_all() {
                _ => Ok(()),
            },
        },
        Err(_) => Err(ScriptError {
            info: ErrorInfo::Runtime(
                format!("Error opening file: {} for writing.", file).to_string(),
                None,
            ),
        }),
    }
}

pub(crate) fn create_empty_file(file: &str) -> Result<(), String> {
    let file_path = Path::new(file);

    if file_path.exists() {
        if file_path.is_file() {
            Ok(())
        } else {
            Err(format!(
                "Unable to create file: {} directory with that path exists.",
                file
            )
            .to_string())
        }
    } else {
        // create parent directory
        let directory = file_path.parent();
        match directory {
            Some(directory_path) => match create_directory_for_path(&directory_path) {
                _ => (),
            },
            None => (),
        };

        match File::create(&file_path) {
            Ok(_) => Ok(()),
            _ => Err(format!("Unable to create file: {}", file).to_string()),
        }
    }
}

pub(crate) fn delete_file(file: &str) -> Result<(), String> {
    let file_path = Path::new(file);

    if file_path.exists() {
        match remove_file(file) {
            Ok(_) => Ok(()),
            Err(error) => Err(format!(
                "Unable to delete file: {} error: {}",
                file,
                error.to_string()
            )
            .to_string()),
        }
    } else {
        Ok(())
    }
}