113505de95
Add PR checks command, iostreams/text packages for colored table output, top-level run/workflow aliases matching gh CLI structure. Enhance actions, issues, PRs, releases, repos, labels, milestones, and wiki commands with improved flags, JSON output, and error handling.
64 lines
1.6 KiB
Go
64 lines
1.6 KiB
Go
package iostreams
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import (
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"fmt"
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"strings"
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"text/tabwriter"
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)
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// TablePrinter prints TTY-aware tables. In TTY mode it uses aligned columns with
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// bold headers. In pipe mode it emits tab-separated values without headers.
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type TablePrinter struct {
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ios *IOStreams
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headers []string
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rows [][]string
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}
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// NewTablePrinter creates a TablePrinter that writes to ios.Out.
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func NewTablePrinter(ios *IOStreams) *TablePrinter {
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return &TablePrinter{
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ios: ios,
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}
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}
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// AddHeader sets the column headers. Headers are only displayed in TTY mode.
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func (t *TablePrinter) AddHeader(headers ...string) {
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t.headers = headers
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}
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// AddRow appends a row of fields to the table.
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func (t *TablePrinter) AddRow(fields ...string) {
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t.rows = append(t.rows, fields)
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}
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// Render writes the table to the IOStreams output. In TTY mode it uses tabwriter
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// with bold headers. In pipe mode it emits tab-separated values without headers.
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func (t *TablePrinter) Render() error {
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if !t.ios.IsStdoutTTY() {
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// Pipe mode: tab-separated, no headers
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for _, row := range t.rows {
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if _, err := fmt.Fprintln(t.ios.Out, strings.Join(row, "\t")); err != nil {
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return err
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}
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}
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return nil
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}
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// TTY mode: use tabwriter with aligned columns
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w := tabwriter.NewWriter(t.ios.Out, 0, 0, 2, ' ', 0)
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if len(t.headers) > 0 {
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cs := t.ios.ColorScheme()
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boldHeaders := make([]string, len(t.headers))
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for i, h := range t.headers {
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boldHeaders[i] = cs.Bold(h)
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}
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fmt.Fprintln(w, strings.Join(boldHeaders, "\t"))
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}
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for _, row := range t.rows {
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fmt.Fprintln(w, strings.Join(row, "\t"))
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}
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return w.Flush()
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}
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