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package cmd
import (
"bufio"
"fmt"
"os"
"strings"
"git.db.org.ai/dborg/internal/utils"
"github.com/spf13/cobra"
)
func stdinPiped() bool {
fi, err := os.Stdin.Stat()
if err != nil {
return false
}
return (fi.Mode() & os.ModeCharDevice) == 0
}
func readStdinLines() ([]string, error) {
var lines []string
scanner := bufio.NewScanner(os.Stdin)
scanner.Buffer(make([]byte, 64*1024), 1024*1024)
for scanner.Scan() {
line := strings.TrimSpace(scanner.Text())
if line == "" || strings.HasPrefix(line, "#") {
continue
}
lines = append(lines, line)
}
if err := scanner.Err(); err != nil {
return nil, fmt.Errorf("failed to read stdin: %w", err)
}
return lines, nil
}
func argsOrStdin(n int) cobra.PositionalArgs {
return func(cmd *cobra.Command, args []string) error {
if len(args) == n {
return nil
}
if len(args) == 0 && stdinPiped() {
return nil
}
return fmt.Errorf("accepts %d arg(s), received %d", n, len(args))
}
}
func resolveQueries(args []string) ([]string, error) {
if len(args) > 0 {
return args, nil
}
if !stdinPiped() {
return nil, fmt.Errorf("no query provided")
}
lines, err := readStdinLines()
if err != nil {
return nil, err
}
if len(lines) == 0 {
return nil, fmt.Errorf("no queries read from stdin")
}
return lines, nil
}
func forEachQuery(args []string, fn func(query string) error) error {
queries, err := resolveQueries(args)
if err != nil {
return err
}
multi := len(queries) > 1
var firstErr error
for i, q := range queries {
if multi {
printQuerySeparator(i, q)
}
if err := fn(q); err != nil {
fmt.Fprintf(os.Stderr, "Error for %q: %v\n", q, err)
if firstErr == nil {
firstErr = err
}
}
}
return firstErr
}
func printQuerySeparator(i int, q string) {
if utils.IsTerminal() {
if i > 0 {
fmt.Println()
}
fmt.Printf("\033[1;36m━━━ %s ━━━\033[0m\n", q)
} else {
fmt.Printf("--- %s ---\n", q)
}
}
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