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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,49 @@ | ||
package pgkit | ||
|
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import ( | ||
"context" | ||
"os" | ||
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"github.com/NTHU-LSALAB/NTHU-Distributed-System/pkg/logkit" | ||
"github.com/go-pg/pg/v10" | ||
"go.uber.org/zap" | ||
) | ||
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type PGConfig struct { | ||
URL string `long:"url" env:"URL" description:"the URL of PostgreSQL" required:"true"` | ||
} | ||
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type PGClient struct { | ||
*pg.DB | ||
closeFunc func() | ||
} | ||
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func (c *PGClient) Close() error { | ||
if c.closeFunc != nil { | ||
c.closeFunc() | ||
} | ||
return c.DB.Close() | ||
} | ||
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func NewPGClient(ctx context.Context, conf *PGConfig) *PGClient { | ||
if url := os.ExpandEnv(conf.URL); url != "" { | ||
conf.URL = url | ||
} | ||
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logger := logkit.FromContext(ctx).With(zap.String("url", conf.URL)) | ||
opts, err := pg.ParseURL(conf.URL) | ||
if err != nil { | ||
logger.Fatal("failed to parse PostgreSQL url", zap.Error(err)) | ||
} | ||
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db := pg.Connect(opts).WithContext(ctx) | ||
if err := db.Ping(ctx); err != nil { | ||
logger.Fatal("failed to ping PostgreSQL", zap.Error(err)) | ||
} | ||
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logger.Info("create PostgreSQL client successfully") | ||
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return &PGClient{ | ||
DB: db, | ||
} | ||
} |
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,47 @@ | ||
package pgkit | ||
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import ( | ||
"context" | ||
"os" | ||
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"github.com/NTHU-LSALAB/NTHU-Distributed-System/pkg/logkit" | ||
. "github.com/onsi/ginkgo/v2" | ||
. "github.com/onsi/gomega" | ||
) | ||
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var _ = Describe("PGClient", func() { | ||
Describe("NewPGClient", func() { | ||
var ( | ||
ctx context.Context | ||
pgConf *PGConfig | ||
pgClient *PGClient | ||
) | ||
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BeforeEach(func() { | ||
ctx = logkit.NewLogger(&logkit.LoggerConfig{ | ||
Development: true, | ||
}).WithContext(context.Background()) | ||
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pgConf = &PGConfig{ | ||
URL: "postgres://postgres@postgres:5432/postgres?sslmode=disable", | ||
} | ||
if url := os.Getenv("POSTGRES_URL"); url != "" { | ||
pgConf.URL = url | ||
} | ||
}) | ||
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JustBeforeEach(func() { | ||
pgClient = NewPGClient(ctx, pgConf) | ||
}) | ||
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AfterEach(func() { | ||
Expect(pgClient.Close()).NotTo(HaveOccurred()) | ||
}) | ||
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When("success", func() { | ||
It("returns new PGClient without error", func() { | ||
Expect(pgClient).NotTo(BeNil()) | ||
}) | ||
}) | ||
}) | ||
}) |
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,13 @@ | ||
package pgkit | ||
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import ( | ||
"testing" | ||
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. "github.com/onsi/ginkgo/v2" | ||
. "github.com/onsi/gomega" | ||
) | ||
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func TestPGKit(t *testing.T) { | ||
RegisterFailHandler(Fail) | ||
RunSpecs(t, "Test PG Kit") | ||
} |