62 lines
2.5 KiB
Rust
62 lines
2.5 KiB
Rust
use std::fs;
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use std::io::{self, ErrorKind};
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use std::path::Path;
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/// The name of the file that contains the version of the database.
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pub const VERSION_FILE_NAME: &str = "VERSION";
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static VERSION_MAJOR: &str = env!("CARGO_PKG_VERSION_MAJOR");
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static VERSION_MINOR: &str = env!("CARGO_PKG_VERSION_MINOR");
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static VERSION_PATCH: &str = env!("CARGO_PKG_VERSION_PATCH");
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/// Persists the version of the current Meilisearch binary to a VERSION file
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pub fn create_version_file(db_path: &Path) -> io::Result<()> {
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let version_path = db_path.join(VERSION_FILE_NAME);
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fs::write(version_path, format!("{}.{}.{}", VERSION_MAJOR, VERSION_MINOR, VERSION_PATCH))
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}
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/// Ensures Meilisearch version is compatible with the database, returns an error versions mismatch.
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pub fn check_version_file(db_path: &Path) -> anyhow::Result<()> {
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let version_path = db_path.join(VERSION_FILE_NAME);
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match fs::read_to_string(version_path) {
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Ok(version) => {
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let version_components = version.split('.').collect::<Vec<_>>();
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let (major, minor, patch) = match &version_components[..] {
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[major, minor, patch] => (major.to_string(), minor.to_string(), patch.to_string()),
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_ => return Err(VersionFileError::MalformedVersionFile.into()),
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};
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if major != VERSION_MAJOR || minor != VERSION_MINOR {
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return Err(VersionFileError::VersionMismatch { major, minor, patch }.into());
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}
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}
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Err(error) => {
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return match error.kind() {
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ErrorKind::NotFound => Err(VersionFileError::MissingVersionFile.into()),
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_ => Err(error.into()),
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}
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}
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}
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Ok(())
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}
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#[derive(thiserror::Error, Debug)]
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pub enum VersionFileError {
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#[error(
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"Meilisearch (v{}) failed to infer the version of the database.
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To update Meilisearch please follow our guide on https://docs.meilisearch.com/learn/advanced/updating.html.",
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env!("CARGO_PKG_VERSION").to_string()
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)]
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MissingVersionFile,
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#[error("Version file is corrupted and thus Meilisearch is unable to determine the version of the database.")]
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MalformedVersionFile,
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#[error(
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"Expected Meilisearch engine version: {major}.{minor}.{patch}, current engine version: {}.
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To update Meilisearch please follow our guide on https://docs.meilisearch.com/learn/advanced/updating.html.",
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env!("CARGO_PKG_VERSION").to_string()
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)]
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VersionMismatch { major: String, minor: String, patch: String },
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}
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