s3find 0.16.1

A command line utility to walk an Amazon S3 hierarchy. s3find is an analog of find for Amazon S3.
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

use std::fmt;
use std::ops::Add;

use aws_sdk_s3::types::Object;
use humansize::*;

pub fn default_stats(summarize: bool) -> Option<FindStat> {
    if summarize {
        Some(FindStat::default())
    } else {
        None
    }
}

#[derive(Debug, Clone, PartialEq)]
pub struct FindStat {
    pub total_files: usize,
    pub total_space: i64,
    pub max_size: Option<i64>,
    pub min_size: Option<i64>,
    pub max_key: String,
    pub min_key: String,
    pub average_size: i64,
}

impl fmt::Display for FindStat {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        let file_size = make_format(BINARY);
        let total_space = file_size(self.total_space as u64);
        let max_size = file_size(self.max_size.unwrap_or_default() as u64);
        let min_size = file_size(self.min_size.unwrap_or_default() as u64);
        let average_size = file_size(self.average_size as u64);

        writeln!(f)?;
        writeln!(f, "Summary")?;
        writeln!(f, "{:19} {}", "Total files:", &self.total_files)?;
        writeln!(f, "Total space:        {total_space}")?;
        writeln!(f, "{:19} {}", "Largest file:", &self.max_key)?;
        writeln!(f, "{:19} {}", "Largest file size:", max_size)?;
        writeln!(f, "{:19} {}", "Smallest file:", &self.min_key)?;
        writeln!(f, "{:19} {}", "Smallest file size:", min_size)?;
        writeln!(f, "{:19} {}", "Average file size:", average_size)?;
        Ok(())
    }
}

impl Add<&[Object]> for FindStat {
    type Output = FindStat;

    #[allow(clippy::suspicious_arithmetic_impl)]
    fn add(mut self: FindStat, list: &[Object]) -> Self {
        for x in list {
            self.total_files += 1;
            let size = x.size;
            self.total_space += size.unwrap_or_default();

            match self.max_size {
                None => {
                    self.max_size = size;
                    self.max_key = x.key.clone().unwrap_or_default();
                }
                Some(max_size) if max_size <= size.unwrap_or_default() => {
                    self.max_size = size;
                    self.max_key = x.key.clone().unwrap_or_default();
                }
                _ => {}
            }

            match self.min_size {
                None => {
                    self.min_size = size;
                    self.min_key = x.key.clone().unwrap_or_default();
                }
                Some(min_size) if min_size > size.unwrap_or_default() => {
                    self.min_size = size;
                    self.min_key = x.key.clone().unwrap_or_default();
                }
                _ => {}
            }

            self.average_size = self.total_space / (self.total_files as i64);
        }
        self
    }
}

impl Default for FindStat {
    fn default() -> Self {
        FindStat {
            total_files: 0,
            total_space: 0,
            max_size: None,
            min_size: None,
            max_key: "".to_owned(),
            min_key: "".to_owned(),
            average_size: 0,
        }
    }
}