zhenyi
109 lines
3.7 KiB
Rust
109 lines
3.7 KiB
Rust
//! Copyright (c) 2022-2026 GitDataAi All rights reserved.
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use crate::bare::GitBare;
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use crate::error::GitResult;
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use crate::pb::*;
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impl GitBare {
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/// Detect license by reading LICENSE/COPYING files and doing basic matching.
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pub fn find_license(&self) -> GitResult<FindLicenseResponse> {
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let possible_paths = [
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"LICENSE",
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"LICENSE.md",
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"LICENSE.txt",
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"LICENCE",
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"LICENCE.md",
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"LICENCE.txt",
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"COPYING",
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"COPYING.md",
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"COPYING.txt",
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"UNLICENSE",
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];
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for path in &possible_paths {
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let output = std::process::Command::new("git")
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.args([
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"--git-dir",
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&self.bare_dir.to_string_lossy(),
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"show",
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&format!("HEAD:{path}"),
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])
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.stdout(std::process::Stdio::piped())
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.stderr(std::process::Stdio::null())
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.output()
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.map_err(|e| crate::error::GitError::CommandFailed {
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status_code: None,
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stderr: e.to_string(),
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})?;
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if output.status.success() {
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let content = String::from_utf8_lossy(&output.stdout);
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let (spdx, name, conf) = detect_license(&content);
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if conf > 0.0 {
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return Ok(FindLicenseResponse {
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license_spdx: spdx.to_string(),
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license_name: name.to_string(),
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confidence: conf,
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license_path: path.to_string(),
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});
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}
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}
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}
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Ok(FindLicenseResponse::default())
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}
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}
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/// Very basic license detection by keyword matching.
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/// Returns (SPDX identifier, human-readable name, confidence).
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fn detect_license(content: &str) -> (&'static str, &'static str, f64) {
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let lower = content.to_lowercase();
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if lower.contains("permission is hereby granted, free of charge") && lower.contains("mit") {
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return ("MIT", "MIT License", 0.95);
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}
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if lower.contains("apache license, version 2.0") || lower.contains("apache-2.0") {
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return ("Apache-2.0", "Apache License 2.0", 0.95);
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}
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if lower.contains("gnu general public license") && lower.contains("version 3") {
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return ("GPL-3.0", "GNU General Public License v3.0", 0.90);
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}
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if lower.contains("gnu general public license") && lower.contains("version 2") {
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return ("GPL-2.0", "GNU General Public License v2.0", 0.90);
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}
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if lower.contains("redistribution and use in source and binary forms")
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&& lower.contains("neither the name of")
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{
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return ("BSD-3-Clause", "BSD 3-Clause License", 0.85);
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}
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if lower.contains("redistribution and use in source and binary forms") {
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return ("BSD-2-Clause", "BSD 2-Clause License", 0.80);
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}
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if lower.contains("gnu affero general public license") {
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return ("AGPL-3.0", "GNU Affero General Public License v3.0", 0.90);
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}
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if lower.contains("gnu lesser general public license") {
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return ("LGPL-3.0", "GNU Lesser General Public License v3.0", 0.85);
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}
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if lower.contains("mozilla public license") {
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return ("MPL-2.0", "Mozilla Public License 2.0", 0.90);
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}
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if lower.contains("this is free and unencumbered software released into the public domain") {
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return ("Unlicense", "The Unlicense", 0.95);
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}
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if lower.contains("permission to use, copy, modify, and/or distribute") && lower.contains("isc")
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{
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return ("ISC", "ISC License", 0.80);
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}
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("", "", 0.0)
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}
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