syncable_cli/analyzer/hadolint/rules/
dl3037.rs

1//! DL3037: Pin versions in zypper install
2//!
3//! zypper packages should be pinned to specific versions.
4
5use crate::analyzer::hadolint::parser::instruction::Instruction;
6use crate::analyzer::hadolint::rules::{simple_rule, SimpleRule};
7use crate::analyzer::hadolint::shell::ParsedShell;
8use crate::analyzer::hadolint::types::Severity;
9
10pub fn rule() -> SimpleRule<impl Fn(&Instruction, Option<&ParsedShell>) -> bool + Send + Sync> {
11    simple_rule(
12        "DL3037",
13        Severity::Warning,
14        "Specify version with `zypper install <package>=<version>`.",
15        |instr, shell| {
16            match instr {
17                Instruction::Run(_) => {
18                    if let Some(shell) = shell {
19                        !shell.any_command(|cmd| {
20                            if cmd.name == "zypper" && cmd.has_any_arg(&["install", "in"]) {
21                                let packages = get_zypper_packages(cmd);
22                                packages.iter().any(|pkg| !is_pinned_zypper_package(pkg))
23                            } else {
24                                false
25                            }
26                        })
27                    } else {
28                        true
29                    }
30                }
31                _ => true,
32            }
33        },
34    )
35}
36
37fn get_zypper_packages(cmd: &crate::analyzer::hadolint::shell::Command) -> Vec<&str> {
38    let mut packages = Vec::new();
39    let mut found_install = false;
40
41    for arg in &cmd.arguments {
42        if arg == "install" || arg == "in" {
43            found_install = true;
44            continue;
45        }
46        if found_install && !arg.starts_with('-') {
47            packages.push(arg.as_str());
48        }
49    }
50
51    packages
52}
53
54fn is_pinned_zypper_package(pkg: &str) -> bool {
55    if pkg.starts_with('-') {
56        return true;
57    }
58    if pkg.ends_with(".rpm") {
59        return true;
60    }
61    // zypper uses = or >= for version pinning
62    pkg.contains('=') || pkg.contains(">=") || pkg.contains("<=")
63}
64
65#[cfg(test)]
66mod tests {
67    use super::*;
68    use crate::analyzer::hadolint::lint::{lint, LintResult};
69    use crate::analyzer::hadolint::config::HadolintConfig;
70
71    fn lint_dockerfile(content: &str) -> LintResult {
72        lint(content, &HadolintConfig::default())
73    }
74
75    #[test]
76    fn test_zypper_unpinned() {
77        let result = lint_dockerfile("FROM opensuse:latest\nRUN zypper -n install nginx");
78        assert!(result.failures.iter().any(|f| f.code.as_str() == "DL3037"));
79    }
80
81    #[test]
82    fn test_zypper_pinned() {
83        let result = lint_dockerfile("FROM opensuse:latest\nRUN zypper -n install nginx=1.20.0");
84        assert!(!result.failures.iter().any(|f| f.code.as_str() == "DL3037"));
85    }
86}