sneak
72d052eac3
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Add the canonical .golangci.yml (v2 layout, default: all with the standard disable list) and pin golangci-lint v2.12.2 in the Makefile deps target using the v2 module path, replacing the @latest install on the old v1 path. The Dockerfile lint stage already pinned the v2.12.2 alpine image by digest and is unchanged. Fix all issues surfaced by the strict config: - err113: introduce wrapped static sentinel errors - gocognit/funlen/nestif: split ExtractDay, Run, DumpAndCompress, VerifyOutput, and the CLI flag parsing into smaller helpers - noctx: use ExecContext/QueryContext/BeginTx and CommandContext - noinlineerr: replace inline if-err assignments with plain ones - wsl_v5/nlreturn: add required blank lines - lll: wrap long lines and SQL strings - gosec: filepath.Clean on file open/create; bounded uint64 conversion in CheckFreeSpace; named output dir permission constant - mnd: use unix.FADV_* constants and named size constants - revive: add package and exported symbol comments - testpackage/paralleltest: move smoke test to bsdaily_test with t.Parallel() - nonamedreturns: drop non-error named returns The remaining nolint directives (gosec subprocess launches with internal paths, unqueryvet full-row SELECT * copies whose schema is defined by the source database) are each justified inline.
73 lines
1.5 KiB
Go
73 lines
1.5 KiB
Go
package bsdaily
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import (
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"errors"
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"fmt"
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"log/slog"
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"os"
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"path/filepath"
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"sort"
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"time"
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)
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var errNoSnapshots = errors.New("no daily snapshots found")
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// FindLatestDailySnapshot locates the newest daily ZFS snapshot that
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// contains the firehose database and returns its directory and date.
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func FindLatestDailySnapshot() (string, time.Time, error) {
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entries, err := os.ReadDir(SnapshotBase)
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if err != nil {
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return "", time.Time{}, fmt.Errorf(
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"reading snapshot directory %s: %w", SnapshotBase, err)
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}
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type snapshot struct {
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name string
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date time.Time
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}
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var snapshots []snapshot
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for _, e := range entries {
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if !e.IsDir() {
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continue
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}
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m := snapshotPattern.FindStringSubmatch(e.Name())
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if m == nil {
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continue
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}
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d, perr := time.Parse("2006-01-02", m[1])
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if perr != nil {
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slog.Warn("skipping snapshot with unparseable date",
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"name", e.Name(), "error", perr)
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continue
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}
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snapshots = append(snapshots, snapshot{name: e.Name(), date: d})
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}
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if len(snapshots) == 0 {
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return "", time.Time{}, fmt.Errorf("%w in %s", errNoSnapshots, SnapshotBase)
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}
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sort.Slice(snapshots, func(i, j int) bool {
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return snapshots[i].date.After(snapshots[j].date)
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})
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latest := snapshots[0]
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dir := filepath.Join(SnapshotBase, latest.name)
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dbPath := filepath.Join(dir, DBFilename)
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_, err = os.Stat(dbPath)
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if err != nil {
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return "", time.Time{}, fmt.Errorf(
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"database not found in snapshot %s: %w", dir, err)
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}
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return dir, latest.date, nil
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}
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