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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,114 @@ | ||
| package main | ||
|
|
||
| import ( | ||
| "context" | ||
| "encoding/json" | ||
| "log" | ||
| "os" | ||
| "time" | ||
|
|
||
| cursoriterator "github.com/Eun/go-pgx-cursor-iterator/v2" | ||
| "github.com/jackc/pgx/v5/pgxpool" | ||
| _ "github.com/jackc/pgx/v5/stdlib" | ||
| "github.com/jmoiron/sqlx" | ||
| ) | ||
|
|
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| const ( | ||
| upsertSnippetQuery = `INSERT INTO snippets (slug, json, query, options, created_at) VALUES (:slug, :json, :query, :options, :created_at) ON CONFLICT (slug) DO UPDATE SET json = :json, query = :query, options = :options, created_at = :created_at` | ||
| ) | ||
|
|
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| var optionsMap = map[string]string{ | ||
| "slurp": "-s", | ||
| "null-input": "-n", | ||
| "compact-output": "-c", | ||
| "raw-output": "-r", | ||
| "raw-input": "-R", | ||
| } | ||
|
|
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| type OldSnippet struct { | ||
| ID int `db:"id"` | ||
| J string `db:"j"` | ||
| Q string `db:"q"` | ||
| O string `db:"o"` | ||
| Slug string `db:"slug"` | ||
| CreatedAt time.Time `db:"created_at"` | ||
| } | ||
|
|
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| type OldSnippetOption struct { | ||
| Name string `json:"name"` | ||
| Enabled bool `json:"enabled"` | ||
| } | ||
|
|
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| type NewSnippet struct { | ||
| JSON string `db:"json"` | ||
| Query string `db:"query"` | ||
| Options []string `db:"options"` | ||
| Slug string `db:"slug"` | ||
| CreatedAt time.Time `db:"created_at"` | ||
| } | ||
|
|
||
| func main() { | ||
| sourceURL := os.Getenv("DATABASE_URL") | ||
| targetURL := os.Getenv("TARGET_DATABASE_URL") | ||
| if sourceURL == "" || targetURL == "" { | ||
| panic("DATABASE_URL and TARGET_DATABASE_URL must be set") | ||
| } | ||
|
|
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| ctx := context.Background() | ||
| pool, err := pgxpool.New(ctx, sourceURL) | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
|
|
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| db, err := sqlx.Connect("pgx", targetURL) | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
|
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| olds := make([]OldSnippet, 1000) | ||
| iter, err := cursoriterator.NewCursorIterator(pool, olds, "SELECT * FROM snippets") | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| defer iter.Close(ctx) | ||
|
|
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| for iter.Next(ctx) { | ||
| old := olds[iter.ValueIndex()] | ||
|
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| var oldOptions []OldSnippetOption | ||
| if err := json.Unmarshal([]byte(old.O), &oldOptions); err != nil { | ||
| log.Printf("error unmarshalling options: %v", err) | ||
| continue | ||
| } | ||
|
|
||
| var newOptions []string | ||
| for _, oldOption := range oldOptions { | ||
| if oldOption.Enabled { | ||
| newOpt, ok := optionsMap[oldOption.Name] | ||
| if ok { | ||
| newOptions = append(newOptions, newOpt) | ||
| } else { | ||
| log.Printf("unknown option: %s %s", old.Slug, oldOption.Name) | ||
| } | ||
| } | ||
| } | ||
|
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| new := NewSnippet{ | ||
| JSON: old.J, | ||
| Query: old.Q, | ||
| Options: newOptions, | ||
| Slug: old.Slug, | ||
| CreatedAt: old.CreatedAt, | ||
| } | ||
| _, err := db.NamedExec(upsertSnippetQuery, | ||
| new, | ||
| ) | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
| } | ||
|
|
||
| if err := iter.Error(); err != nil { | ||
| log.Fatal(err) | ||
| } | ||
| } |
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