P4: contrib/store — second module (pure-Go SQLite), budget store
Establish the nested persistence module — the architectural reason the core stays lean: a SEPARATE go.mod carrying modernc.org/sqlite (pure Go, no cgo), so the SQLite driver NEVER enters the executus core go.sum. A static-binary host (gadfly) importing only the core stays static; a host wanting turnkey persistence imports contrib/store. - sqlite.go: store.Open(dsn) -> *DB (one SQLite file), accessor-per-seam. - budget_store.go: db.Budget() satisfies budget.BudgetStorage; Add() does the 7-day window rollover atomically inside a transaction (concurrent Adds can't race the read-modify-write — the in-memory store's one weak spot). - Conformance test: budget.NewDBBudget over the SQLite store passes the SAME rolling-window contract as the in-memory store. - CI: a new step builds + tests contrib/store on its own AND asserts it carries the sqlite driver the core forbids (proof the split works). Verified: core go.sum has 0 sqlite refs; contrib/store go.sum has it. persona/skill/audit SQLite stores follow next (same JSON-blob + indexed-columns pattern, sidestepping the three-layer field-loss footgun). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
@@ -103,3 +103,15 @@ jobs:
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exit 1
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fi
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echo "OK: core go.sum is free of host/DB dependencies."
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- name: contrib/store (nested SQLite module — isolated from core)
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run: |
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# contrib/store is a SEPARATE module carrying modernc.org/sqlite; the
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# core's `go test ./...` doesn't reach it. Build + test it on its own,
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# and confirm it DOES carry the driver the core forbids (proof the
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# split works: persistence lives here, not in the core go.sum).
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cd contrib/store
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go build ./...
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go test -race -count=1 -timeout 5m ./...
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grep -qE 'modernc.org/sqlite' go.sum || { echo "ERROR: contrib/store should carry the sqlite driver"; exit 1; }
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echo "OK: contrib/store builds, tests pass, and owns the SQLite dep."
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@@ -75,8 +75,10 @@ BATTERIES (opt-in siblings, each nil-safe + a default):
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budget/ DBBudget rolling-7d + NoOp (run.Budget); [P4 ✓]
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BudgetStorage iface + Memory default
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contrib/store/ SECOND module (+ modernc.org/sqlite): [P4]
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in-memory + pure-Go SQLite impls of every *Store seam
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contrib/store/ SECOND module (+ modernc.org/sqlite): [P4 ~]
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pure-Go SQLite impls of the *Store seams. budget ✓
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(conformance-tested); persona/skill/audit pending.
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CI proves the driver lands HERE, not in the core go.sum.
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```
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### The one architectural move
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@@ -61,7 +61,7 @@ Two tiers in one module (`go.mod` = majordomo + stdlib only):
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ships a default, so you add only what you use.
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Persistence that needs a real database lives in a **separate** nested module
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(`contrib/store`, pure-Go SQLite) so the core never drags in a DB driver — a
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(`contrib/store`, pure-Go SQLite — the `budget` store landed first, conformance-tested) so the core never drags in a DB driver — a
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static-binary host (gadfly) stays static.
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## License
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@@ -0,0 +1,99 @@
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package store
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import (
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"context"
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"database/sql"
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"errors"
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"fmt"
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"time"
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"gitea.stevedudenhoeffer.com/steve/executus/budget"
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)
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// budgetStore is the SQLite-backed budget.BudgetStorage.
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type budgetStore struct{ db *sql.DB }
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// Budget returns a durable budget.BudgetStorage backed by this database.
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func (d *DB) Budget() budget.BudgetStorage { return &budgetStore{db: d.sql} }
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var _ budget.BudgetStorage = (*budgetStore)(nil)
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func (s *budgetStore) Initialize(ctx context.Context) error {
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_, err := s.db.ExecContext(ctx, `
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CREATE TABLE IF NOT EXISTS skill_budgets (
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user_id TEXT PRIMARY KEY,
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window_start INTEGER NOT NULL, -- unix seconds
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seconds_used REAL NOT NULL,
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runs_count INTEGER NOT NULL,
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updated_at INTEGER NOT NULL
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)`)
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if err != nil {
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return fmt.Errorf("budgetStore.Initialize: %w", err)
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}
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return nil
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}
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func (s *budgetStore) Get(ctx context.Context, userID string) (*budget.SkillBudget, error) {
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row := s.db.QueryRowContext(ctx,
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`SELECT window_start, seconds_used, runs_count, updated_at FROM skill_budgets WHERE user_id = ?`, userID)
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var ws, ua int64
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var used float64
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var runs int
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switch err := row.Scan(&ws, &used, &runs, &ua); {
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case errors.Is(err, sql.ErrNoRows):
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return nil, nil // no row yet — documented (nil, nil)
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case err != nil:
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return nil, fmt.Errorf("budgetStore.Get: %w", err)
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}
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return &budget.SkillBudget{
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UserID: userID,
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WindowStart: time.Unix(ws, 0).UTC(),
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SecondsUsed: used,
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RunsCount: runs,
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UpdatedAt: time.Unix(ua, 0).UTC(),
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}, nil
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}
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// Add increments usage atomically, rolling the 7-day window over inside one
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// transaction so concurrent Adds can't race the read-modify-write.
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func (s *budgetStore) Add(ctx context.Context, userID string, secondsUsed float64, now time.Time) error {
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tx, err := s.db.BeginTx(ctx, nil)
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if err != nil {
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return fmt.Errorf("budgetStore.Add: begin: %w", err)
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}
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defer tx.Rollback() //nolint:errcheck // no-op after Commit
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var ws int64
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var used float64
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var runs int
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err = tx.QueryRowContext(ctx,
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`SELECT window_start, seconds_used, runs_count FROM skill_budgets WHERE user_id = ?`, userID).
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Scan(&ws, &used, &runs)
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switch {
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case errors.Is(err, sql.ErrNoRows):
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ws, used, runs = now.Unix(), 0, 0
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case err != nil:
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return fmt.Errorf("budgetStore.Add: select: %w", err)
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}
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// Roll the window over if older than 7 days.
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if now.Sub(time.Unix(ws, 0)) >= 7*24*time.Hour {
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ws, used, runs = now.Unix(), 0, 0
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}
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used += secondsUsed
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runs++
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if _, err := tx.ExecContext(ctx, `
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INSERT INTO skill_budgets (user_id, window_start, seconds_used, runs_count, updated_at)
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VALUES (?, ?, ?, ?, ?)
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ON CONFLICT(user_id) DO UPDATE SET
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window_start = excluded.window_start,
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seconds_used = excluded.seconds_used,
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runs_count = excluded.runs_count,
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updated_at = excluded.updated_at`,
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userID, ws, used, runs, now.Unix()); err != nil {
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return fmt.Errorf("budgetStore.Add: upsert: %w", err)
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}
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if err := tx.Commit(); err != nil {
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return fmt.Errorf("budgetStore.Add: commit: %w", err)
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}
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return nil
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}
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@@ -0,0 +1,65 @@
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package store
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import (
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"context"
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"errors"
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"testing"
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"time"
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"gitea.stevedudenhoeffer.com/steve/executus/budget"
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)
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// TestSQLiteBudgetConformance runs the budget battery over the SQLite store and
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// asserts the same rolling-window contract the in-memory store must satisfy.
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func TestSQLiteBudgetConformance(t *testing.T) {
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ctx := context.Background()
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db, err := Open(":memory:")
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if err != nil {
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t.Fatal(err)
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}
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defer db.Close()
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st := db.Budget()
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if err := st.Initialize(ctx); err != nil {
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t.Fatal(err)
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}
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now := time.Now().UTC()
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b := budget.NewDBBudget(st, func() float64 { return 100 }, nil, func() time.Time { return now })
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if err := b.Check(ctx, "u"); err != nil {
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t.Fatalf("fresh caller should pass: %v", err)
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}
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b.Commit(ctx, "u", 60)
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if err := b.Check(ctx, "u"); err != nil {
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t.Fatalf("60/100 should pass: %v", err)
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}
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b.Commit(ctx, "u", 50) // 110 total
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if err := b.Check(ctx, "u"); !errors.Is(err, budget.ErrBudgetExceeded) {
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t.Fatalf("110/100 should be ErrBudgetExceeded, got %v", err)
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}
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// Direct Get reflects the persisted row.
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row, err := st.Get(ctx, "u")
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if err != nil || row == nil {
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t.Fatalf("Get: %v %+v", err, row)
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}
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if row.SecondsUsed != 110 || row.RunsCount != 2 {
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t.Errorf("row = %+v, want seconds=110 runs=2", row)
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}
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// Window rolls over after 7 days.
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now = now.Add(8 * 24 * time.Hour)
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b.Commit(ctx, "u", 1)
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if err := b.Check(ctx, "u"); err != nil {
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t.Fatalf("after rollover should pass: %v", err)
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}
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row, _ = st.Get(ctx, "u")
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if row.SecondsUsed != 1 || row.RunsCount != 1 {
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t.Errorf("post-rollover row = %+v, want seconds=1 runs=1", row)
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}
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// Unknown user -> (nil, nil).
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if r, err := st.Get(ctx, "nobody"); err != nil || r != nil {
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t.Errorf("Get(unknown) = %+v %v, want nil,nil", r, err)
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}
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}
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@@ -0,0 +1,29 @@
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module gitea.stevedudenhoeffer.com/steve/executus/contrib/store
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go 1.26.2
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require (
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gitea.stevedudenhoeffer.com/steve/executus v0.0.0
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modernc.org/sqlite v1.34.4
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)
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require (
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gitea.stevedudenhoeffer.com/steve/majordomo v0.0.0-20260626223738-1fd7109a42f3 // indirect
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github.com/dustin/go-humanize v1.0.1 // indirect
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github.com/google/uuid v1.6.0 // indirect
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github.com/hashicorp/golang-lru/v2 v2.0.7 // indirect
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github.com/mattn/go-isatty v0.0.20 // indirect
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github.com/ncruces/go-strftime v0.1.9 // indirect
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||||
github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect
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golang.org/x/crypto v0.53.0 // indirect
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golang.org/x/sys v0.46.0 // indirect
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modernc.org/gc/v3 v3.0.0-20240107210532-573471604cb6 // indirect
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modernc.org/libc v1.55.3 // indirect
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modernc.org/mathutil v1.6.0 // indirect
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modernc.org/memory v1.8.0 // indirect
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modernc.org/strutil v1.2.0 // indirect
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modernc.org/token v1.1.0 // indirect
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)
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// Co-developed against the local checkout; dropped (pinned) at executus v0.1.0.
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replace gitea.stevedudenhoeffer.com/steve/executus => ../../
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@@ -0,0 +1,53 @@
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||||
gitea.stevedudenhoeffer.com/steve/majordomo v0.0.0-20260626223738-1fd7109a42f3 h1:KYKIFFRsXzbbBJVDa99+Fhy0zxl9G0xV/MCrLipsLL4=
|
||||
gitea.stevedudenhoeffer.com/steve/majordomo v0.0.0-20260626223738-1fd7109a42f3/go.mod h1:UZLveG17SmENt4sne2RSLIbioix30RZbRIQUzBAnOyY=
|
||||
github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
|
||||
github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
|
||||
github.com/google/pprof v0.0.0-20240409012703-83162a5b38cd h1:gbpYu9NMq8jhDVbvlGkMFWCjLFlqqEZjEmObmhUy6Vo=
|
||||
github.com/google/pprof v0.0.0-20240409012703-83162a5b38cd/go.mod h1:kf6iHlnVGwgKolg33glAes7Yg/8iWP8ukqeldJSO7jw=
|
||||
github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
|
||||
github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
|
||||
github.com/hashicorp/golang-lru/v2 v2.0.7 h1:a+bsQ5rvGLjzHuww6tVxozPZFVghXaHOwFs4luLUK2k=
|
||||
github.com/hashicorp/golang-lru/v2 v2.0.7/go.mod h1:QeFd9opnmA6QUJc5vARoKUSoFhyfM2/ZepoAG6RGpeM=
|
||||
github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
|
||||
github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
|
||||
github.com/ncruces/go-strftime v0.1.9 h1:bY0MQC28UADQmHmaF5dgpLmImcShSi2kHU9XLdhx/f4=
|
||||
github.com/ncruces/go-strftime v0.1.9/go.mod h1:Fwc5htZGVVkseilnfgOVb9mKy6w1naJmn9CehxcKcls=
|
||||
github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 h1:Jamvg5psRIccs7FGNTlIRMkT8wgtp5eCXdBlqhYGL6U=
|
||||
github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
|
||||
github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec h1:W09IVJc94icq4NjY3clb7Lk8O1qJ8BdBEF8z0ibU0rE=
|
||||
github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec/go.mod h1:qqbHyh8v60DhA7CoWK5oRCqLrMHRGoxYCSS9EjAz6Eo=
|
||||
golang.org/x/crypto v0.53.0 h1:QZ4Muo8THX6CizN2vPPd5fBGHyogrdK9fG4wLPFUsto=
|
||||
golang.org/x/crypto v0.53.0/go.mod h1:DNLU434OwVakk9PzuwV8w62mAJpRJL3vsgcfp4Qnsio=
|
||||
golang.org/x/mod v0.16.0 h1:QX4fJ0Rr5cPQCF7O9lh9Se4pmwfwskqZfq5moyldzic=
|
||||
golang.org/x/mod v0.16.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
|
||||
golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
|
||||
golang.org/x/sys v0.46.0 h1:noSf2Fq6F8DBgS+LysIkx7rIExoNHJsxOAtPp4rthXw=
|
||||
golang.org/x/sys v0.46.0/go.mod h1:4GL1E5IUh+htKOUEOaiffhrAeqysfVGipDYzABqnCmw=
|
||||
golang.org/x/tools v0.19.0 h1:tfGCXNR1OsFG+sVdLAitlpjAvD/I6dHDKnYrpEZUHkw=
|
||||
golang.org/x/tools v0.19.0/go.mod h1:qoJWxmGSIBmAeriMx19ogtrEPrGtDbPK634QFIcLAhc=
|
||||
modernc.org/cc/v4 v4.21.4 h1:3Be/Rdo1fpr8GrQ7IVw9OHtplU4gWbb+wNgeoBMmGLQ=
|
||||
modernc.org/cc/v4 v4.21.4/go.mod h1:HM7VJTZbUCR3rV8EYBi9wxnJ0ZBRiGE5OeGXNA0IsLQ=
|
||||
modernc.org/ccgo/v4 v4.19.2 h1:lwQZgvboKD0jBwdaeVCTouxhxAyN6iawF3STraAal8Y=
|
||||
modernc.org/ccgo/v4 v4.19.2/go.mod h1:ysS3mxiMV38XGRTTcgo0DQTeTmAO4oCmJl1nX9VFI3s=
|
||||
modernc.org/fileutil v1.3.0 h1:gQ5SIzK3H9kdfai/5x41oQiKValumqNTDXMvKo62HvE=
|
||||
modernc.org/fileutil v1.3.0/go.mod h1:XatxS8fZi3pS8/hKG2GH/ArUogfxjpEKs3Ku3aK4JyQ=
|
||||
modernc.org/gc/v2 v2.4.1 h1:9cNzOqPyMJBvrUipmynX0ZohMhcxPtMccYgGOJdOiBw=
|
||||
modernc.org/gc/v2 v2.4.1/go.mod h1:wzN5dK1AzVGoH6XOzc3YZ+ey/jPgYHLuVckd62P0GYU=
|
||||
modernc.org/gc/v3 v3.0.0-20240107210532-573471604cb6 h1:5D53IMaUuA5InSeMu9eJtlQXS2NxAhyWQvkKEgXZhHI=
|
||||
modernc.org/gc/v3 v3.0.0-20240107210532-573471604cb6/go.mod h1:Qz0X07sNOR1jWYCrJMEnbW/X55x206Q7Vt4mz6/wHp4=
|
||||
modernc.org/libc v1.55.3 h1:AzcW1mhlPNrRtjS5sS+eW2ISCgSOLLNyFzRh/V3Qj/U=
|
||||
modernc.org/libc v1.55.3/go.mod h1:qFXepLhz+JjFThQ4kzwzOjA/y/artDeg+pcYnY+Q83w=
|
||||
modernc.org/mathutil v1.6.0 h1:fRe9+AmYlaej+64JsEEhoWuAYBkOtQiMEU7n/XgfYi4=
|
||||
modernc.org/mathutil v1.6.0/go.mod h1:Ui5Q9q1TR2gFm0AQRqQUaBWFLAhQpCwNcuhBOSedWPo=
|
||||
modernc.org/memory v1.8.0 h1:IqGTL6eFMaDZZhEWwcREgeMXYwmW83LYW8cROZYkg+E=
|
||||
modernc.org/memory v1.8.0/go.mod h1:XPZ936zp5OMKGWPqbD3JShgd/ZoQ7899TUuQqxY+peU=
|
||||
modernc.org/opt v0.1.3 h1:3XOZf2yznlhC+ibLltsDGzABUGVx8J6pnFMS3E4dcq4=
|
||||
modernc.org/opt v0.1.3/go.mod h1:WdSiB5evDcignE70guQKxYUl14mgWtbClRi5wmkkTX0=
|
||||
modernc.org/sortutil v1.2.0 h1:jQiD3PfS2REGJNzNCMMaLSp/wdMNieTbKX920Cqdgqc=
|
||||
modernc.org/sortutil v1.2.0/go.mod h1:TKU2s7kJMf1AE84OoiGppNHJwvB753OYfNl2WRb++Ss=
|
||||
modernc.org/sqlite v1.34.4 h1:sjdARozcL5KJBvYQvLlZEmctRgW9xqIZc2ncN7PU0P8=
|
||||
modernc.org/sqlite v1.34.4/go.mod h1:3QQFCG2SEMtc2nv+Wq4cQCH7Hjcg+p/RMlS1XK+zwbk=
|
||||
modernc.org/strutil v1.2.0 h1:agBi9dp1I+eOnxXeiZawM8F4LawKv4NzGWSaLfyeNZA=
|
||||
modernc.org/strutil v1.2.0/go.mod h1:/mdcBmfOibveCTBxUl5B5l6W+TTH1FXPLHZE6bTosX0=
|
||||
modernc.org/token v1.1.0 h1:Xl7Ap9dKaEs5kLoOQeQmPWevfnk/DM5qcLcYlA8ys6Y=
|
||||
modernc.org/token v1.1.0/go.mod h1:UGzOrNV1mAFSEB63lOFHIpNRUVMvYTc6yu1SMY/XTDM=
|
||||
@@ -0,0 +1,47 @@
|
||||
// Package store provides durable, pure-Go SQLite implementations of executus's
|
||||
// battery store seams (audit, budget, persona, skill). It is a SEPARATE nested
|
||||
// module so the SQLite driver (modernc.org/sqlite — pure Go, no cgo) never
|
||||
// enters the executus core go.sum: a static-binary host (gadfly) that imports
|
||||
// only the core stays static, while a host that wants turnkey persistence
|
||||
// imports this module and gets every *Store seam backed by one SQLite file.
|
||||
//
|
||||
// db, _ := store.Open("file:executus.db?_pragma=busy_timeout(5000)")
|
||||
// defer db.Close()
|
||||
// budgetStore := db.Budget() // satisfies budget.BudgetStorage
|
||||
package store
|
||||
|
||||
import (
|
||||
"database/sql"
|
||||
"fmt"
|
||||
|
||||
_ "modernc.org/sqlite" // pure-Go driver, registered as "sqlite"
|
||||
)
|
||||
|
||||
// DB is a handle to one SQLite database backing the executus store seams. Each
|
||||
// accessor (Budget(), …) returns a seam implementation sharing this connection.
|
||||
// Safe for concurrent use (SQLite serializes writes; busy_timeout handles
|
||||
// contention). Construct with Open; close with Close.
|
||||
type DB struct {
|
||||
sql *sql.DB
|
||||
}
|
||||
|
||||
// Open opens (creating if absent) a SQLite database at dsn and returns a DB. A
|
||||
// dsn of ":memory:" yields an ephemeral in-memory database. The caller owns the
|
||||
// returned DB and must Close it.
|
||||
func Open(dsn string) (*DB, error) {
|
||||
sqldb, err := sql.Open("sqlite", dsn)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("store: open %q: %w", dsn, err)
|
||||
}
|
||||
if err := sqldb.Ping(); err != nil {
|
||||
sqldb.Close()
|
||||
return nil, fmt.Errorf("store: ping %q: %w", dsn, err)
|
||||
}
|
||||
return &DB{sql: sqldb}, nil
|
||||
}
|
||||
|
||||
// Close closes the underlying database.
|
||||
func (d *DB) Close() error { return d.sql.Close() }
|
||||
|
||||
// SQL exposes the underlying *sql.DB for hosts that need direct access.
|
||||
func (d *DB) SQL() *sql.DB { return d.sql }
|
||||
Reference in New Issue
Block a user