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package table
import (
"encoding/csv"
"fmt"
"os"
"github.com/charmbracelet/bubbles/help"
"github.com/charmbracelet/bubbles/table"
tea "github.com/charmbracelet/bubbletea"
"github.com/charmbracelet/gum/internal/stdin"
"github.com/charmbracelet/gum/internal/timeout"
"github.com/charmbracelet/gum/style"
"github.com/charmbracelet/lipgloss"
ltable "github.com/charmbracelet/lipgloss/table"
"golang.org/x/text/encoding"
"golang.org/x/text/encoding/unicode"
"golang.org/x/text/transform"
)
// Run provides a shell script interface for rendering tabular data (CSV).
func (o Options) Run() error {
var input *os.File
if o.File != "" {
var err error
input, err = os.Open(o.File)
if err != nil {
return fmt.Errorf("could not render file: %w", err)
}
} else {
if stdin.IsEmpty() {
return fmt.Errorf("no data provided")
}
input = os.Stdin
}
defer input.Close() //nolint: errcheck
transformer := unicode.BOMOverride(encoding.Nop.NewDecoder())
reader := csv.NewReader(transform.NewReader(input, transformer))
reader.LazyQuotes = o.LazyQuotes
reader.FieldsPerRecord = o.FieldsPerRecord
separatorRunes := []rune(o.Separator)
if len(separatorRunes) != 1 {
return fmt.Errorf("separator must be single character")
}
reader.Comma = separatorRunes[0]
writer := csv.NewWriter(os.Stdout)
writer.Comma = separatorRunes[0]
var columnNames []string
var err error
// If no columns are provided we'll use the first row of the CSV as the
// column names.
if len(o.Columns) <= 0 {
columnNames, err = reader.Read()
if err != nil {
return fmt.Errorf("unable to parse columns")
}
} else {
columnNames = o.Columns
}
data, err := reader.ReadAll()
if err != nil {
return fmt.Errorf("invalid data provided")
}
columns := make([]table.Column, 0, len(columnNames))
for i, title := range columnNames {
width := lipgloss.Width(title)
if len(o.Widths) > i {
width = o.Widths[i]
}
columns = append(columns, table.Column{
Title: title,
Width: width,
})
}
defaultStyles := table.DefaultStyles()
top, right, bottom, left := style.ParsePadding(o.Padding)
styles := table.Styles{
Cell: defaultStyles.Cell.Inherit(o.CellStyle.ToLipgloss()),
Header: defaultStyles.Header.Inherit(o.HeaderStyle.ToLipgloss()),
Selected: o.SelectedStyle.ToLipgloss(),
}
rows := make([]table.Row, 0, len(data))
for row := range data {
if len(data[row]) > len(columns) {
return fmt.Errorf("invalid number of columns")
}
// fixes the data in case we have more columns than rows:
for len(data[row]) < len(columns) {
data[row] = append(data[row], "")
}
for i, col := range data[row] {
if len(o.Widths) == 0 {
width := lipgloss.Width(col)
if width > columns[i].Width {
columns[i].Width = width
}
}
}
rows = append(rows, table.Row(data[row]))
}
if o.Print {
table := ltable.New().
Headers(columnNames...).
Rows(data...).
BorderStyle(o.BorderStyle.ToLipgloss()).
Border(style.Border[o.Border]).
StyleFunc(func(row, _ int) lipgloss.Style {
if row == 0 {
return styles.Header
}
return styles.Cell
})
fmt.Println(table.Render())
return nil
}
opts := []table.Option{
table.WithColumns(columns),
table.WithFocused(true),
table.WithRows(rows),
table.WithStyles(styles),
}
if o.Height > 0 {
opts = append(opts, table.WithHeight(o.Height-top-bottom))
}
table := table.New(opts...)
ctx, cancel := timeout.Context(o.Timeout)
defer cancel()
m := model{
table: table,
showHelp: o.ShowHelp,
hideCount: o.HideCount,
help: help.New(),
keymap: defaultKeymap(),
padding: []int{top, right, bottom, left},
}
tm, err := tea.NewProgram(
m,
tea.WithOutput(os.Stderr),
tea.WithContext(ctx),
).Run()
if err != nil {
return fmt.Errorf("failed to start tea program: %w", err)
}
if tm == nil {
return fmt.Errorf("failed to get selection")
}
m = tm.(model)
if o.ReturnColumn > 0 && o.ReturnColumn <= len(m.selected) {
if err = writer.Write([]string{m.selected[o.ReturnColumn-1]}); err != nil {
return fmt.Errorf("failed to write col %d of selected row: %w", o.ReturnColumn, err)
}
} else {
if err = writer.Write([]string(m.selected)); err != nil {
return fmt.Errorf("failed to write selected row: %w", err)
}
}
writer.Flush()
return nil
}
|
