gergely/taskwarrior-2.x
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Apply snapshots automatically on empty taskdbs

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This commit is contained in:
Dustin J. Mitchell
2021-10-19 22:01:37 -04:00
parent 636862f8c5
commit c72cae648d
7 changed files with 86 additions and 18 deletions
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12
taskchampion/src/taskdb/snapshot.rs
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@@ -70,7 +70,6 @@ impl SnapshotTasks {
}
}
#[allow(dead_code)]
/// Generate a snapshot (compressed, unencrypted) for the current state of the taskdb in the given
/// storage.
pub(super) fn make_snapshot(txn: &mut dyn StorageTxn) -> anyhow::Result<Vec<u8>> {
@@ -78,7 +77,6 @@ pub(super) fn make_snapshot(txn: &mut dyn StorageTxn) -> anyhow::Result<Vec<u8>>
all_tasks.encode()
}
#[allow(dead_code)]
/// Apply the given snapshot (compressed, unencrypted) to the taskdb's storage.
pub(super) fn apply_snapshot(
txn: &mut dyn StorageTxn,
@@ -87,14 +85,8 @@ pub(super) fn apply_snapshot(
) -> anyhow::Result<()> {
let all_tasks = SnapshotTasks::decode(snapshot)?;
// first, verify that the taskdb truly is empty
let mut empty = true;
empty = empty && txn.all_tasks()?.is_empty();
empty = empty && txn.get_working_set()? == vec![None];
empty = empty && txn.base_version()? == Uuid::nil();
empty = empty && txn.operations()?.is_empty();
if !empty {
// double-check emptiness
if !txn.is_empty()? {
anyhow::bail!("Cannot apply snapshot to a non-empty task database");
}