mirror of
https://github.com/ProvableHQ/leo.git
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83 lines
2.9 KiB
Rust
83 lines
2.9 KiB
Rust
// Copyright (C) 2019-2023 Aleo Systems Inc.
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// This file is part of the Leo library.
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// The Leo library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// The Leo library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with the Leo library. If not, see <https://www.gnu.org/licenses/>.
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use std::{
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fs::File,
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io::{BufRead, BufReader},
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path::Path,
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};
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use walkdir::WalkDir;
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// The following license text that should be present at the beginning of every source file.
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const EXPECTED_LICENSE_TEXT: &str = include_str!(".resources/license_header");
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// The following directories will be excluded from the license scan.
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const DIRS_TO_SKIP: [&str; 9] =
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[".cargo", ".circleci", ".git", ".github", ".resources", "docs", "examples", "target", "tests"];
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fn compare_license_text(path: &Path, expected_lines: &[&str]) {
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let file = File::open(path).unwrap();
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let reader = BufReader::new(file);
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for (i, (file_line, expected_line)) in reader.lines().zip(expected_lines).enumerate() {
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let file_line =
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file_line.unwrap_or_else(|_| panic!("Can't read line {} in file \"{}\"!", i + 1, path.display()));
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assert_eq!(
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&file_line,
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expected_line,
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"Line {} in file \"{}\" was expected to contain the license text \"{}\", but contains \"{}\" instead! \
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Consult the expected license text in \".resources/license_header\"",
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i + 1,
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path.display(),
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expected_line,
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file_line
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);
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}
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}
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fn check_file_licenses<P: AsRef<Path>>(path: P) {
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let path = path.as_ref();
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let license_lines: Vec<_> = EXPECTED_LICENSE_TEXT.lines().collect();
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let mut iter = WalkDir::new(path).into_iter();
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while let Some(entry) = iter.next() {
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let entry = entry.unwrap();
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let entry_type = entry.file_type();
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// Skip the specified directories.
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if entry_type.is_dir() && DIRS_TO_SKIP.contains(&entry.file_name().to_str().unwrap_or("")) {
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iter.skip_current_dir();
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continue;
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}
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// Check all files with the ".rs" extension.
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if entry_type.is_file() && entry.file_name().to_str().unwrap_or("").ends_with(".rs") {
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compare_license_text(entry.path(), &license_lines);
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}
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}
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// Re-run upon any changes to the workspace.
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println!("cargo:rerun-if-changed=.");
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}
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// The build script; it currently only checks the licenses.
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fn main() {
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// Check licenses in the current folder.
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check_file_licenses(".");
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}
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