feat(06-01): add pgx/v5 store with connection pool and migrations
- Store struct wrapping pgxpool.Pool with NewStore/Close/Pool - RunMigrations creates conversations + messages tables idempotently - DSN never logged to avoid credential exposure (T-06-01-02) - All queries parameterized (T-06-01-01)
This commit is contained in:
parent
7a304c8cc4
commit
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4 changed files with 103 additions and 0 deletions
5
go.mod
5
go.mod
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@ -18,6 +18,10 @@ require (
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github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect
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github.com/fsnotify/fsnotify v1.9.0 // indirect
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github.com/go-viper/mapstructure/v2 v2.4.0 // indirect
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github.com/jackc/pgpassfile v1.0.0 // indirect
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github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 // indirect
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github.com/jackc/pgx/v5 v5.9.1 // indirect
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github.com/jackc/puddle/v2 v2.2.2 // indirect
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github.com/pelletier/go-toml/v2 v2.2.4 // indirect
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github.com/sagikazarmark/locafero v0.11.0 // indirect
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github.com/skip2/go-qrcode v0.0.0-20200617195104-da1b6568686e // indirect
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@ -30,6 +34,7 @@ require (
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go.uber.org/atomic v1.11.0 // indirect
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go.yaml.in/yaml/v3 v3.0.4 // indirect
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golang.org/x/image v0.39.0 // indirect
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golang.org/x/sync v0.20.0 // indirect
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golang.org/x/sys v0.29.0 // indirect
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golang.org/x/text v0.36.0 // indirect
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gopkg.in/validator.v2 v2.0.1 // indirect
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15
go.sum
15
go.sum
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@ -6,6 +6,7 @@ github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UF
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github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
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github.com/creack/goselect v0.1.2 h1:2DNy14+JPjRBgPzAd1thbQp4BSIihxcBf0IXhQXDRa0=
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github.com/creack/goselect v0.1.2/go.mod h1:a/NhLweNvqIYMuxcMOuWY516Cimucms3DglDzQP3hKY=
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github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
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github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f h1:lO4WD4F/rVNCu3HqELle0jiPLLBs70cWOduZpkS1E78=
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@ -22,6 +23,14 @@ github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
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github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
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github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
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github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
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github.com/jackc/pgpassfile v1.0.0 h1:/6Hmqy13Ss2zCq62VdNG8tM1wchn8zjSGOBJ6icpsIM=
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github.com/jackc/pgpassfile v1.0.0/go.mod h1:CEx0iS5ambNFdcRtxPj5JhEz+xB6uRky5eyVu/W2HEg=
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github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 h1:iCEnooe7UlwOQYpKFhBabPMi4aNAfoODPEFNiAnClxo=
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github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761/go.mod h1:5TJZWKEWniPve33vlWYSoGYefn3gLQRzjfDlhSJ9ZKM=
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github.com/jackc/pgx/v5 v5.9.1 h1:uwrxJXBnx76nyISkhr33kQLlUqjv7et7b9FjCen/tdc=
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github.com/jackc/pgx/v5 v5.9.1/go.mod h1:mal1tBGAFfLHvZzaYh77YS/eC6IX9OWbRV1QIIM0Jn4=
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github.com/jackc/puddle/v2 v2.2.2 h1:PR8nw+E/1w0GLuRFSmiioY6UooMp6KJv0/61nB7icHo=
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github.com/jackc/puddle/v2 v2.2.2/go.mod h1:vriiEXHvEE654aYKXXjOvZM39qJ0q+azkZFrfEOc3H4=
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github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
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github.com/joho/godotenv v1.5.1/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4=
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github.com/klauspost/cpuid/v2 v2.0.9 h1:lgaqFMSdTdQYdZ04uHyN2d/eKdOMyi2YLSvlQIBFYa4=
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@ -56,6 +65,9 @@ github.com/spf13/pflag v1.0.10 h1:4EBh2KAYBwaONj6b2Ye1GiHfwjqyROoF4RwYO+vPwFk=
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github.com/spf13/pflag v1.0.10/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
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github.com/spf13/viper v1.21.0 h1:x5S+0EU27Lbphp4UKm1C+1oQO+rKx36vfCoaVebLFSU=
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github.com/spf13/viper v1.21.0/go.mod h1:P0lhsswPGWD/1lZJ9ny3fYnVqxiegrlNrEmgLjbTCAY=
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github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
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github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
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github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
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github.com/stretchr/testify v1.11.1 h1:7s2iGBzp5EwR7/aIZr8ao5+dra3wiQyKjjFuvgVKu7U=
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github.com/stretchr/testify v1.11.1/go.mod h1:wZwfW3scLgRK+23gO65QZefKpKQRnfz6sD981Nm4B6U=
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github.com/subosito/gotenv v1.6.0 h1:9NlTDc1FTs4qu0DDq7AEtTPNw6SVm7uBMsUCUjABIf8=
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@ -70,6 +82,8 @@ go.yaml.in/yaml/v3 v3.0.4 h1:tfq32ie2Jv2UxXFdLJdh3jXuOzWiL1fo0bu/FbuKpbc=
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go.yaml.in/yaml/v3 v3.0.4/go.mod h1:DhzuOOF2ATzADvBadXxruRBLzYTpT36CKvDb3+aBEFg=
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golang.org/x/image v0.39.0 h1:skVYidAEVKgn8lZ602XO75asgXBgLj9G/FE3RbuPFww=
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golang.org/x/image v0.39.0/go.mod h1:sIbmppfU+xFLPIG0FoVUTvyBMmgng1/XAMhQ2ft0hpA=
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golang.org/x/sync v0.20.0 h1:e0PTpb7pjO8GAtTs2dQ6jYa5BWYlMuX047Dco/pItO4=
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golang.org/x/sync v0.20.0/go.mod h1:9xrNwdLfx4jkKbNva9FpL6vEN7evnE43NNNJQ2LF3+0=
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golang.org/x/sys v0.29.0 h1:TPYlXGxvx1MGTn2GiZDhnjPA9wZzZeGKHHmKhHYvgaU=
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golang.org/x/sys v0.29.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
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golang.org/x/text v0.28.0 h1:rhazDwis8INMIwQ4tpjLDzUhx6RlXqZNPEM0huQojng=
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gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
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gopkg.in/validator.v2 v2.0.1 h1:xF0KWyGWXm/LM2G1TrEjqOu4pa6coO9AlWSf3msVfDY=
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gopkg.in/validator.v2 v2.0.1/go.mod h1:lIUZBlB3Im4s/eYp39Ry/wkR02yOPhZ9IwIRBjuPuG8=
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gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
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gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
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gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
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40
internal/store/migrations.go
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40
internal/store/migrations.go
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@ -0,0 +1,40 @@
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package store
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import (
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"context"
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"fmt"
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"github.com/jackc/pgx/v5/pgxpool"
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)
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// RunMigrations creates the conversations and messages tables idempotently.
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// It is safe to call multiple times; existing tables are left untouched.
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//
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// Schema:
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//
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// conversations(id UUID PK, started_at TIMESTAMPTZ, model TEXT)
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// messages(id UUID PK, conversation_id UUID FK, role TEXT CHECK, content TEXT, created_at TIMESTAMPTZ)
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func RunMigrations(ctx context.Context, pool *pgxpool.Pool) error {
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statements := []string{
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`CREATE TABLE IF NOT EXISTS conversations (
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id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
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started_at TIMESTAMPTZ NOT NULL DEFAULT now(),
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model TEXT NOT NULL DEFAULT ''
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)`,
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`CREATE TABLE IF NOT EXISTS messages (
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id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
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conversation_id UUID NOT NULL REFERENCES conversations(id) ON DELETE CASCADE,
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role TEXT NOT NULL CHECK (role IN ('user','assistant','system')),
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content TEXT NOT NULL,
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created_at TIMESTAMPTZ NOT NULL DEFAULT now()
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)`,
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}
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for i, stmt := range statements {
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if _, err := pool.Exec(ctx, stmt); err != nil {
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return fmt.Errorf("store: migration statement %d: %w", i, err)
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}
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}
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return nil
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}
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43
internal/store/store.go
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internal/store/store.go
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package store
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import (
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"context"
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"fmt"
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"github.com/jackc/pgx/v5/pgxpool"
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)
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// Store holds the PostgreSQL connection pool and exposes methods for
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// chat persistence. All operations are parameterized (T-06-01-01).
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type Store struct {
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pool *pgxpool.Pool
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}
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// NewStore creates a new Store by connecting to PostgreSQL via pgxpool.
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// It pings the pool to verify connectivity before returning.
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// The DSN is sourced from the HWLAB_DATABASE_URL env var — it is never
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// logged here to avoid leaking credentials (T-06-01-02).
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func NewStore(ctx context.Context, dsn string) (*Store, error) {
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pool, err := pgxpool.New(ctx, dsn)
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if err != nil {
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return nil, fmt.Errorf("store: open pool: %w", err)
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}
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if err := pool.Ping(ctx); err != nil {
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pool.Close()
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return nil, fmt.Errorf("store: ping: %w", err)
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}
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return &Store{pool: pool}, nil
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}
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// Pool returns the underlying pgxpool.Pool for direct use in migrations
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// and tests.
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func (s *Store) Pool() *pgxpool.Pool {
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return s.pool
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}
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// Close releases all connections in the pool. Safe to call more than once.
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func (s *Store) Close() {
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s.pool.Close()
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}
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