fallow-cli 2.100.0

CLI for fallow, Rust-native codebase intelligence for TypeScript and JavaScript
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

#![allow(
    clippy::unwrap_used,
    clippy::expect_used,
    reason = "integration tests keep fixture setup concise"
)]

#[path = "common/mod.rs"]
mod common;

use common::{parse_json, run_fallow_in_root};
use tempfile::tempdir;

fn write_project(root: &std::path::Path) {
    std::fs::create_dir_all(root.join("src")).unwrap();
    std::fs::write(
        root.join("package.json"),
        r#"{"name":"inspect-fixture","type":"module"}"#,
    )
    .unwrap();
    std::fs::write(root.join("tsconfig.json"), r#"{"include":["src"]}"#).unwrap();
    std::fs::write(root.join(".fallowrc.json"), r#"{"entry":["src/index.ts"]}"#).unwrap();
    std::fs::write(
        root.join("src/index.ts"),
        "import { fetchUser } from './api';\nexport const boot = () => fetchUser('1');\n",
    )
    .unwrap();
    std::fs::write(
        root.join("src/api.ts"),
        "export const fetchUser = (id: string) => ({ id });\n",
    )
    .unwrap();
}

#[test]
fn inspect_file_outputs_typed_evidence_bundle() {
    let dir = tempdir().unwrap();
    write_project(dir.path());

    let output = run_fallow_in_root(
        "inspect",
        dir.path(),
        &["--file", "src/api.ts", "--format", "json", "--quiet"],
    );
    assert_eq!(output.code, 0, "inspect should exit 0: {}", output.stderr);

    let json = parse_json(&output);
    assert_eq!(json["kind"].as_str(), Some("inspect_target"));
    assert_eq!(json["target"]["type"].as_str(), Some("file"));
    assert_eq!(json["target"]["file"].as_str(), Some("src/api.ts"));
    assert_eq!(json["identity"]["file"].as_str(), Some("src/api.ts"));
    assert_eq!(
        json["evidence"]["trace_file"]["status"].as_str(),
        Some("ok")
    );
    assert_eq!(
        json["evidence"]["dead_code"]["scope"].as_str(),
        Some("file")
    );
    assert_eq!(
        json["evidence"]["duplication"]["scope"].as_str(),
        Some("project_filtered_to_file")
    );
}

#[test]
fn inspect_file_accepts_absolute_path_inside_root() {
    let dir = tempdir().unwrap();
    write_project(dir.path());

    let file = dir.path().join("src/api.ts");
    let output = run_fallow_in_root(
        "inspect",
        dir.path(),
        &[
            "--file",
            file.to_str().unwrap(),
            "--format",
            "json",
            "--quiet",
        ],
    );
    assert_eq!(output.code, 0, "inspect should exit 0: {}", output.stderr);

    let json = parse_json(&output);
    assert_eq!(json["target"]["file"].as_str(), Some("src/api.ts"));
    assert_eq!(json["identity"]["file"].as_str(), Some("src/api.ts"));
}

#[test]
fn inspect_symbol_outputs_trace_export_section() {
    let dir = tempdir().unwrap();
    write_project(dir.path());

    let output = run_fallow_in_root(
        "inspect",
        dir.path(),
        &[
            "--symbol",
            "src/api.ts:fetchUser",
            "--format",
            "json",
            "--quiet",
        ],
    );
    assert_eq!(output.code, 0, "inspect should exit 0: {}", output.stderr);

    let json = parse_json(&output);
    assert_eq!(json["kind"].as_str(), Some("inspect_target"));
    assert_eq!(json["target"]["type"].as_str(), Some("symbol"));
    assert_eq!(json["target"]["export_name"].as_str(), Some("fetchUser"));
    assert_eq!(json["identity"]["export_name"].as_str(), Some("fetchUser"));
    assert_eq!(
        json["evidence"]["trace_export"]["status"].as_str(),
        Some("ok")
    );
    assert!(
        json["warnings"]
            .as_array()
            .is_some_and(|items| !items.is_empty())
    );
}

#[test]
fn inspect_human_output_includes_evidence_summary() {
    let dir = tempdir().unwrap();
    write_project(dir.path());

    let output = run_fallow_in_root("inspect", dir.path(), &["--file", "src/api.ts"]);
    assert_eq!(output.code, 0, "inspect should exit 0: {}", output.stderr);

    assert!(output.stdout.contains("Evidence"));
    assert!(output.stdout.contains("trace_file: ok [file]"));
    assert!(
        output
            .stdout
            .contains("duplication: ok [project filtered to file]")
    );
}