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|
// Debby is a command line tool that links your dolt database to visidata
package main
import (
"fmt"
"os"
"os/exec"
"strings"
"sync"
)
var once = sync.Once{}
func main() {
// Menu loop. 1. Read tale names 2. Run query 3. Run and save query 4. Execute Dolt command 5. Exit
for {
// Print menu
fmt.Println("1. Read table names")
fmt.Println("2. Run query")
fmt.Println("3. Edit table")
fmt.Println("4. Execute Dolt command")
fmt.Println("5. Exit")
fmt.Print("Enter your choice: ")
// Read user input
var choice int
fmt.Scanln(&choice)
// Execute choice
switch choice {
case 1:
// Read table names
ReadTableNames()
case 2:
// Request query
fmt.Print("Enter your query: ")
var query string
fmt.Scanln(&query)
// Table name will be empty. Run query
RunSQL(query, "")
case 3:
// Request table name
fmt.Print("Enter your table name: ")
var table string
fmt.Scanln(&table)
// Run query
RunSQL("select * from " + table + ";", table)
case 4:
// Request command
fmt.Print("dolt ")
var args string
fmt.Scanln(&args)
// Execute command
ExecuteDoltCommand(args)
case 5:
// Exit
return
default:
// Invalid choice
fmt.Println("Invalid choice")
}
}
}
func ExecuteDoltCommand(args ...string) {
cmd := exec.Command("dolt", args...)
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
cmd.Stdin = os.Stdin
cmd.Run()
}
func SaveToTable(table, file string) error {
// Run dolt table import -r table file
cmd := exec.Command("dolt", "table", "import", "-r", table, file)
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
cmd.Stdin = os.Stdin
return cmd.Run()
}
func ReadTableNames() {
// Run dolt ls
cmd := exec.Command("dolt", "ls")
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
cmd.Stdin = os.Stdin
cmd.Run()
}
func RunSQL(query, table string) error {
// Create a temporary file to open in visidata
f, err := os.CreateTemp("", "debby-*.sql")
if err != nil {
return err
}
defer os.Remove(f.Name())
// Run the query and write the output to the file
cmd := exec.Command("dolt", "sql", "-q", query, "-r", "csv")
cmd.Stdout = f
err = cmd.Run()
if err != nil {
return err
}
// Open the file in visidata
OpenVisidata(f.Name(), "-f", "csv")
// If table is not empty, save the file to the table
if table != "" {
err = SaveToTable(table, f.Name())
if err != nil {
return err
}
}
// Read the file back into memory
return nil
}
func OpenVisidata(args ...string) {
vdcmd := os.Getenv("EDITOR")
once.Do(func() {
// run with --version and check if it returns saul.pw/Visidata, if not try the same with visidata instead
for _, cmd := range []string{"vd", "visidata"} {
out, err := exec.Command(cmd, "--version").Output()
if err != nil {
continue
}
if strings.Contains(string(out), "saul.pw/Visidata") {
vdcmd = cmd
break
}
}
})
cmd := exec.Command(vdcmd, args...)
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
cmd.Stdin = os.Stdin
cmd.Run()
}
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