89 lines
2.1 KiB
Go
89 lines
2.1 KiB
Go
package main
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import (
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"database/sql"
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"fmt"
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"github.com/boramalper/magnetico/pkg/persistence"
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_ "github.com/mattn/go-sqlite3"
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"go.uber.org/zap"
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"gopkg.in/alecthomas/kingpin.v2"
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"net/url"
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)
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var (
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goDatabaseUrl = kingpin.Flag("go-database", "magneticod Go version database URL.").Short('g').String()
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pyDatabaseUrl = kingpin.Flag("py-database", "Python version database URL.").Short('p').Required().String()
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)
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func main() {
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logger, _ := zap.NewDevelopment()
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defer logger.Sync()
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zap.ReplaceGlobals(logger)
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kingpin.Parse()
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goDatabase, err := persistence.MakeDatabase(*goDatabaseUrl, logger)
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if err != nil {
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logger.Panic("Could not open Go database.", zap.String("url", *goDatabaseUrl), zap.Error(err))
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}
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defer goDatabase.Close()
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oldSqliteUrl, err := url.Parse(*pyDatabaseUrl)
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if err != nil {
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logger.Panic("Can't parse Python database URL.", zap.String("url", *pyDatabaseUrl), zap.Error(err))
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}
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pyDatabase, err := openSqliteDb(*oldSqliteUrl)
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if err != nil {
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logger.Panic("Couldn't open Python database.", zap.String("url", *pyDatabaseUrl), zap.Error(err))
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}
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defer pyDatabase.Close()
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err = process(*pyDatabase, goDatabase)
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if err != nil {
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logger.Error("Error while processing data", zap.Error(err))
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}
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}
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func process(pyDb sql.DB, goDb persistence.Database) error {
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//torrentsTotal, err := getNumberOfTorrents(pyDb)
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//if err != nil {
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// zap.L().Panic("Couldn't count torrents", zap.Error(err))
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//}
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//
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//bar := pb.StartNew(int(torrentsTotal))
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// TODO
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return nil
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}
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func getNumberOfTorrents(db sql.DB) (uint, error) {
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rows, err := db.Query("SELECT COUNT(id) FROM torrents;")
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if err != nil {
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return 0, err
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}
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defer rows.Close()
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if rows.Next() != true {
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return 0, fmt.Errorf("No rows returned from `SELECT COUNT(id)`")
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}
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var n *uint
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if err = rows.Scan(&n); err != nil {
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return 0, err
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}
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// If the database is empty (i.e. 0 entries in 'torrents') then the query will return nil.
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if n == nil {
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return 0, nil
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} else {
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return *n, nil
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}
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}
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func openSqliteDb(url_ url.URL) (*sql.DB, error) {
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url_.Scheme = ""
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return sql.Open("sqlite3", url_.String())
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}
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