f00 0.7.2

f00 — a modern, friendly directory lister (ls rewrite)
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
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233

//! GNU ls parity smoke / golden-ish tests.
//!
//! We do not require byte-identical output to coreutils (locales, time zones, padding),
//! but we assert structural compatibility for common flags.

use std::fs;
use std::path::{Path, PathBuf};
use std::process::Command;

fn bin() -> PathBuf {
    PathBuf::from(env!("CARGO_BIN_EXE_f00"))
}

fn temp_dir(label: &str) -> PathBuf {
    let base = std::env::temp_dir().join(format!(
        "f00-gnu-{}-{}-{}",
        label,
        std::process::id(),
        std::time::SystemTime::now()
            .duration_since(std::time::UNIX_EPOCH)
            .map(|d| d.as_nanos())
            .unwrap_or(0)
    ));
    fs::create_dir_all(&base).expect("mkdir");
    base
}

fn empty_config(dir: &Path) -> PathBuf {
    let p = dir.join("empty.toml");
    fs::write(&p, "").unwrap();
    p
}

fn f00(config: &Path) -> Command {
    let mut c = Command::new(bin());
    c.args(["--color=never", "--git=false", "--config"]);
    c.arg(config);
    c
}

#[test]
fn directory_flag_lists_dir_itself() {
    let dir = temp_dir("d");
    let sub = dir.join("sub");
    fs::create_dir(&sub).unwrap();
    fs::write(sub.join("inside.txt"), b"x").unwrap();
    let cfg = empty_config(&dir);

    let out = f00(&cfg).args(["-1", "-d"]).arg(&sub).output().unwrap();
    assert_eq!(out.status.code(), Some(0));
    let stdout = String::from_utf8_lossy(&out.stdout);
    assert!(
        stdout.contains("sub") || stdout.contains(sub.to_string_lossy().as_ref()),
        "stdout={stdout}"
    );
    assert!(
        !stdout.contains("inside.txt"),
        "-d must not list children: {stdout}"
    );
    let _ = fs::remove_dir_all(&dir);
}

#[test]
fn ignore_backups_and_pattern() {
    let dir = temp_dir("ignore");
    fs::write(dir.join("keep.txt"), b"k").unwrap();
    fs::write(dir.join("drop.txt~"), b"b").unwrap();
    fs::write(dir.join("skip.o"), b"o").unwrap();
    let cfg = empty_config(&dir);

    let out = f00(&cfg)
        .args(["-1", "-B", "-I", "*.o"])
        .arg(&dir)
        .output()
        .unwrap();
    assert_eq!(out.status.code(), Some(0));
    let stdout = String::from_utf8_lossy(&out.stdout);
    assert!(stdout.contains("keep.txt"), "{stdout}");
    assert!(!stdout.contains("drop.txt~"), "{stdout}");
    assert!(!stdout.contains("skip.o"), "{stdout}");
    let _ = fs::remove_dir_all(&dir);
}

#[test]
fn size_sort_largest_first() {
    let dir = temp_dir("S");
    fs::write(dir.join("small"), b"a").unwrap();
    fs::write(dir.join("big"), vec![b'x'; 4096]).unwrap();
    fs::write(dir.join("mid"), vec![b'y'; 64]).unwrap();
    let cfg = empty_config(&dir);

    let out = f00(&cfg).args(["-1", "-S"]).arg(&dir).output().unwrap();
    assert_eq!(out.status.code(), Some(0));
    let stdout = String::from_utf8_lossy(&out.stdout);
    let big = stdout.find("big").expect("big");
    let mid = stdout.find("mid").expect("mid");
    let small = stdout.find("small").expect("small");
    assert!(big < mid && mid < small, "order stdout={stdout}");
    let _ = fs::remove_dir_all(&dir);
}

#[test]
fn long_format_has_owner_group_nlink() {
    let dir = temp_dir("l");
    fs::write(dir.join("file.txt"), b"hello").unwrap();
    let cfg = empty_config(&dir);

    let out = f00(&cfg).args(["-l", "--gnu"]).arg(&dir).output().unwrap();
    assert_eq!(out.status.code(), Some(0));
    let stdout = String::from_utf8_lossy(&out.stdout);
    // Permissions start with type + rwx style
    assert!(
        stdout.contains("file.txt")
            && (stdout.contains("-rw") || stdout.contains("rw-") || stdout.contains("r--")),
        "stdout={stdout}"
    );
    // No git decoration column spacing with triple spaces from git when --gnu
    assert!(
        !stdout.contains(" M "),
        "git should be off under --gnu: {stdout}"
    );
    let _ = fs::remove_dir_all(&dir);
}

#[test]
fn classify_and_slash() {
    let dir = temp_dir("F");
    fs::create_dir(dir.join("d")).unwrap();
    let file = dir.join("x");
    fs::write(&file, b"#!/bin/sh\n").unwrap();
    #[cfg(unix)]
    {
        use std::os::unix::fs::PermissionsExt;
        let mut perms = fs::metadata(&file).unwrap().permissions();
        perms.set_mode(0o755);
        fs::set_permissions(&file, perms).unwrap();
    }
    let cfg = empty_config(&dir);

    let out = f00(&cfg).args(["-1", "-F"]).arg(&dir).output().unwrap();
    let stdout = String::from_utf8_lossy(&out.stdout);
    assert!(stdout.contains("d/"), "dirs get /: {stdout}");
    #[cfg(unix)]
    assert!(
        stdout.contains("x*") || stdout.contains("x"),
        "stdout={stdout}"
    );

    let out2 = f00(&cfg).args(["-1", "-p"]).arg(&dir).output().unwrap();
    let s2 = String::from_utf8_lossy(&out2.stdout);
    assert!(s2.contains("d/"), "-p: {s2}");
    let _ = fs::remove_dir_all(&dir);
}

#[test]
fn commas_format() {
    let dir = temp_dir("m");
    fs::write(dir.join("a"), b"1").unwrap();
    fs::write(dir.join("b"), b"2").unwrap();
    let cfg = empty_config(&dir);
    let out = f00(&cfg).args(["-m"]).arg(&dir).output().unwrap();
    assert_eq!(out.status.code(), Some(0));
    let stdout = String::from_utf8_lossy(&out.stdout);
    assert!(stdout.contains(',') || stdout.contains("a"), "{stdout}");
    let _ = fs::remove_dir_all(&dir);
}

#[test]
fn unsorted_all_f_flag() {
    let dir = temp_dir("f");
    fs::write(dir.join(".hid"), b"h").unwrap();
    fs::write(dir.join("vis"), b"v").unwrap();
    let cfg = empty_config(&dir);
    let out = f00(&cfg).args(["-1", "-f"]).arg(&dir).output().unwrap();
    assert_eq!(out.status.code(), Some(0));
    let stdout = String::from_utf8_lossy(&out.stdout);
    assert!(stdout.contains(".hid"), "-f implies -a: {stdout}");
    let _ = fs::remove_dir_all(&dir);
}

#[test]
fn group_directories_first() {
    let dir = temp_dir("gdf");
    fs::write(dir.join("zzz"), b"f").unwrap();
    fs::create_dir(dir.join("aaa_dir")).unwrap();
    let cfg = empty_config(&dir);
    let out = f00(&cfg)
        .args(["-1", "--group-directories-first"])
        .arg(&dir)
        .output()
        .unwrap();
    let stdout = String::from_utf8_lossy(&out.stdout);
    let d = stdout.find("aaa_dir").expect("dir");
    let f = stdout.find("zzz").expect("file");
    assert!(d < f, "dirs first: {stdout}");
    let _ = fs::remove_dir_all(&dir);
}

#[test]
fn gnu_disables_icons_even_if_requested() {
    let dir = temp_dir("gnu-icons");
    fs::write(dir.join("a.rs"), b"fn main(){}").unwrap();
    let cfg = empty_config(&dir);
    let out = f00(&cfg)
        .args(["-1", "--icons", "--gnu"])
        .arg(&dir)
        .output()
        .unwrap();
    let stdout = String::from_utf8_lossy(&out.stdout);
    // Emoji icons should not appear under --gnu
    assert!(
        !stdout.contains('🦀') && !stdout.contains('📁'),
        "no icons under --gnu: {stdout}"
    );
    let _ = fs::remove_dir_all(&dir);
}

#[test]
fn almost_all_hides_dot_dotdot() {
    let dir = temp_dir("A");
    fs::write(dir.join(".hid"), b"h").unwrap();
    let cfg = empty_config(&dir);
    let out = f00(&cfg).args(["-1", "-A"]).arg(&dir).output().unwrap();
    let stdout = String::from_utf8_lossy(&out.stdout);
    assert!(stdout.contains(".hid"), "{stdout}");
    // lines that are exactly . or ..
    for line in stdout.lines() {
        let t = line.trim();
        assert_ne!(t, ".");
        assert_ne!(t, "..");
    }
    let _ = fs::remove_dir_all(&dir);
}