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package main
import (
"log"
"os"
"golang.org/x/term"
)
// getTerminalWidth returns the width of the active terminal.
// If the output is not an interactive terminal (e.g., it's being piped to a file
// or another command), it returns a default width and false.
func getTerminalWidth() (int, bool) {
// term.IsTerminal checks if the given file descriptor is connected to a terminal.
// We use os.Stdout.Fd() to check the standard output.
if term.IsTerminal(int(os.Stdout.Fd())) {
// term.GetSize returns the dimensions of the given terminal.
width, _, err := term.GetSize(int(os.Stdout.Fd()))
if err != nil {
// If we can't get the size for some reason, fall back to the default.
log.Printf("could not get terminal size: %v", err)
return 120, false
}
return width, true
}
// If it's not a terminal, return the default width.
return 120, false
}
// truncateString shortens a string to the specified length, adding an ellipsis if truncated.
func truncateString(s string, maxLength int) string {
if len(s) <= maxLength {
return s
}
// Subtract 3 to make room for the ellipsis "..."
if maxLength < 3 {
return "..."
}
return s[:maxLength-3] + "..."
}
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