85 lines
2.7 KiB
Rust

// Copyright (c) The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or https://opensource.org/license/mit/.
use std::env;
use std::path::PathBuf;
use std::process::Command;
/// A possible error returned by any of the linters.
///
/// The error string should explain the failure type and list all violations.
pub type LintError = String;
pub type LintResult = Result<(), LintError>;
pub type LintFn = fn() -> LintResult;
/// Return the git command
///
/// Lint functions should use this command, so that only files tracked by git are considered and
/// temporary and untracked files are ignored. For example, instead of 'grep', 'git grep' should be
/// used.
pub fn git() -> Command {
let mut git = Command::new("git");
git.arg("--no-pager");
git
}
/// Return stdout on success and a LintError on failure, when invalid UTF8 was detected or the
/// command did not succeed.
pub fn check_output(cmd: &mut Command) -> Result<String, LintError> {
let out = cmd.output().expect("command error");
if !out.status.success() {
return Err(String::from_utf8_lossy(&out.stderr).to_string());
}
Ok(String::from_utf8(out.stdout)
.map_err(|e| {
format!("All path names, source code, messages, and output must be valid UTF8!\n{e}")
})?
.trim()
.to_string())
}
/// Return the git root as utf8, or panic
pub fn get_git_root() -> PathBuf {
PathBuf::from(check_output(git().args(["rev-parse", "--show-toplevel"])).unwrap())
}
/// Return the commit range, or panic
pub fn commit_range() -> String {
// Use the env var, if set. E.g. COMMIT_RANGE='HEAD~n..HEAD' for the last 'n' commits.
env::var("COMMIT_RANGE").unwrap_or_else(|_| {
// Otherwise, assume that a merge commit exists. This merge commit is assumed
// to be the base, after which linting will be done. If the merge commit is
// HEAD, the range will be empty.
format!(
"{}..HEAD",
check_output(git().args(["rev-list", "--max-count=1", "--merges", "HEAD"]))
.expect("check_output failed")
)
})
}
/// Return all subtree paths
pub fn get_subtrees() -> Vec<&'static str> {
// Keep in sync with [test/lint/README.md#git-subtree-checksh]
vec![
"src/crc32c",
"src/crypto/ctaes",
"src/ipc/libmultiprocess",
"src/leveldb",
"src/minisketch",
"src/secp256k1",
]
}
/// Return the pathspecs to exclude by default
pub fn get_pathspecs_default_excludes() -> Vec<String> {
get_subtrees()
.iter()
.chain(&[
"doc/release-notes/release-notes-*", // archived notes
])
.map(|s| format!(":(exclude){s}"))
.collect()
}