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apply.go
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apply.go
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package schemaherocli
import (
"bufio"
"fmt"
"os"
"path/filepath"
"github.com/schemahero/schemahero/pkg/database"
"github.com/spf13/cobra"
"github.com/spf13/viper"
)
func Apply() *cobra.Command {
cmd := &cobra.Command{
Use: "apply",
Short: "apply a spec to a database",
Long: `...`,
PreRun: func(cmd *cobra.Command, args []string) {
viper.BindPFlags(cmd.Flags())
},
RunE: func(cmd *cobra.Command, args []string) error {
v := viper.GetViper()
// to support automaticenv, we can't use cobra required flags
driver := v.GetString("driver")
ddl := v.GetString("ddl")
uri := v.GetString("uri")
vaultUriRef := v.GetString("vault-uri-ref")
if driver == "" || ddl == "" || (uri == "" && vaultUriRef == "") {
missing := []string{}
if driver == "" {
missing = append(missing, "driver")
}
if ddl == "" {
missing = append(missing, "ddl")
}
if uri == "" && vaultUriRef == "" {
missing = append(missing, "uri or vault-uri-ref")
}
return fmt.Errorf("missing required params: %v", missing)
}
fi, err := os.Stat(v.GetString("ddl"))
if err != nil {
return err
}
db := database.Database{
InputDir: v.GetString("input-dir"),
OutputDir: v.GetString("output-dir"),
Driver: v.GetString("driver"),
URI: v.GetString("uri"),
VaultURIRef: v.GetString("vault-uri-ref"),
}
if fi.Mode().IsDir() {
commands := []string{}
err := filepath.Walk(v.GetString("ddl"), func(path string, info os.FileInfo, err error) error {
if info.IsDir() {
return nil
}
f, err := os.Open(path)
if err != nil {
return err
}
defer f.Close()
commands := []string{}
scanner := bufio.NewScanner(f)
for scanner.Scan() {
commands = append(commands, scanner.Text())
}
if err := scanner.Err(); err != nil {
return err
}
return nil
})
if err != nil {
return err
}
if err := db.ApplySync(commands); err != nil {
return err
}
return nil
} else {
f, err := os.Open(v.GetString("ddl"))
if err != nil {
return err
}
defer f.Close()
commands := []string{}
scanner := bufio.NewScanner(f)
for scanner.Scan() {
commands = append(commands, scanner.Text())
}
if err := scanner.Err(); err != nil {
return err
}
return db.ApplySync(commands)
}
},
}
cmd.Flags().String("driver", "", "name of the database driver to use")
cmd.Flags().String("uri", "", "connection string uri to use")
cmd.Flags().String("vault-uri-ref", "", "URI-reference to Vault-injected connection URI")
cmd.Flags().String("ddl", "", "filename or directory name containing the rendered DDL commands to execute")
return cmd
}