mz_catalog_protos/
lib.rs

1// Copyright Materialize, Inc. and contributors. All rights reserved.
2//
3// Use of this software is governed by the Business Source License
4// included in the LICENSE file.
5//
6// As of the Change Date specified in that file, in accordance with
7// the Business Source License, use of this software will be governed
8// by the Apache License, Version 2.0.
9
10//! All types we durably persist in the Catalog.
11
12pub mod audit_log;
13pub mod objects;
14pub mod objects_v74;
15pub mod objects_v75;
16pub mod objects_v76;
17pub mod objects_v77;
18pub mod objects_v78;
19pub mod objects_v79;
20pub mod objects_v80;
21pub mod objects_v81;
22pub mod serialization;
23
24/// The current version of the `Catalog`.
25///
26/// We will initialize new `Catalog`s with this version, and migrate existing `Catalog`s to this
27/// version. Whenever the `Catalog` changes, e.g. the types we serialize in the `Catalog`
28/// change, we need to bump this version.
29pub const CATALOG_VERSION: u64 = 81;
30
31/// The minimum `Catalog` version number that we support migrating from.
32///
33/// After bumping this we can delete the old migrations.
34pub const MIN_CATALOG_VERSION: u64 = 74;
35
36#[cfg(test)]
37mod tests {
38    use std::collections::BTreeSet;
39    use std::fs;
40    use std::path::PathBuf;
41
42    use crate::{CATALOG_VERSION, MIN_CATALOG_VERSION};
43
44    #[mz_ore::test]
45    fn test_assert_snapshots_exist() {
46        let src_dir: PathBuf = [env!("CARGO_MANIFEST_DIR"), "src"].iter().collect();
47
48        // Get all the versioned object definition files.
49        let mut filenames: BTreeSet<_> = fs::read_dir(src_dir)
50            .expect("failed to read src dir")
51            .map(|entry| entry.expect("failed to read dir entry").file_name())
52            .map(|filename| filename.to_str().expect("utf8").to_string())
53            .filter(|filename| filename.starts_with("objects_v"))
54            .collect();
55
56        // Assert snapshots exist for all of the versions we support.
57        for version in MIN_CATALOG_VERSION..=CATALOG_VERSION {
58            let filename = format!("objects_v{version}.rs");
59            assert!(
60                filenames.remove(&filename),
61                "Missing snapshot for v{version}."
62            );
63        }
64
65        // Common case. Check to make sure the user bumped the CATALOG_VERSION.
66        if !filenames.is_empty()
67            && filenames.remove(&format!("objects_v{}.proto", CATALOG_VERSION + 1))
68        {
69            panic!(
70                "Found snapshot for v{}, please also bump `CATALOG_VERSION`.",
71                CATALOG_VERSION + 1
72            )
73        }
74
75        // Assert there aren't any extra snapshots.
76        assert!(
77            filenames.is_empty(),
78            "Found snapshots for unsupported catalog versions {filenames:?}.\n\
79             If you just increased `MIN_CATALOG_VERSION`, then please delete the old snapshots. \
80             If you created a new snapshot, please bump `CATALOG_VERSION`."
81        );
82    }
83
84    #[mz_ore::test]
85    fn test_assert_current_snapshot() {
86        let src_dir: PathBuf = [env!("CARGO_MANIFEST_DIR"), "src"].iter().collect();
87        let current_rs = src_dir.join("objects.rs");
88        let snapshot_rs = src_dir.join(format!("objects_v{CATALOG_VERSION}.rs"));
89
90        let current = fs::read_to_string(current_rs).expect("read current");
91        let snapshot = fs::read_to_string(snapshot_rs).expect("read snapshot");
92
93        // Note: objects.rs and objects_v<CATALOG_VERSION>.rs should be exactly the same. The
94        // reason being, when bumping the catalog to the next version, CATALOG_VERSION + 1, we need a
95        // snapshot to migrate _from_, which should be a snapshot of how the types are today.
96        // Hence why the two files should be exactly the same.
97        similar_asserts::assert_eq!(current, snapshot);
98    }
99}
mz_catalog_protos/lib.rs

mz_catalog_protos/
lib.rs
