mirror of
https://github.com/charmbracelet/gum.git
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01a66511a1
* refactor: hide style flags on error to not clutter usage * docs(style): add comment regarding dynamically hiding flags
142 lines
3.5 KiB
Go
142 lines
3.5 KiB
Go
package filter
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import (
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"errors"
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"fmt"
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"os"
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"strings"
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"github.com/charmbracelet/bubbles/textinput"
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"github.com/charmbracelet/bubbles/viewport"
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tea "github.com/charmbracelet/bubbletea"
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"github.com/mattn/go-isatty"
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"github.com/sahilm/fuzzy"
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"github.com/charmbracelet/gum/ansi"
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"github.com/charmbracelet/gum/internal/exit"
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"github.com/charmbracelet/gum/internal/files"
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"github.com/charmbracelet/gum/internal/stdin"
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)
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// Run provides a shell script interface for filtering through options, powered
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// by the textinput bubble.
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func (o Options) Run() error {
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i := textinput.New()
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i.Focus()
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i.Prompt = o.Prompt
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i.PromptStyle = o.PromptStyle.ToLipgloss()
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i.Placeholder = o.Placeholder
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i.Width = o.Width
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v := viewport.New(o.Width, o.Height)
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if len(o.Options) == 0 {
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if input, _ := stdin.Read(); input != "" {
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o.Options = strings.Split(strings.TrimSuffix(input, "\n"), "\n")
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} else {
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o.Options = files.List()
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}
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}
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if len(o.Options) == 0 {
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return errors.New("no options provided, see `gum filter --help`")
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}
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if o.SelectIfOne && len(o.Options) == 1 {
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if isatty.IsTerminal(os.Stdout.Fd()) {
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fmt.Print(o.Options[0])
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} else {
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fmt.Print(ansi.Strip(o.Options[0]))
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}
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return nil
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}
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options := []tea.ProgramOption{tea.WithOutput(os.Stderr)}
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if o.Height == 0 {
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options = append(options, tea.WithAltScreen())
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}
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var matches []fuzzy.Match
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if o.Value != "" {
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i.SetValue(o.Value)
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}
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switch {
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case o.Value != "" && o.Fuzzy:
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matches = fuzzy.Find(o.Value, o.Options)
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case o.Value != "" && !o.Fuzzy:
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matches = exactMatches(o.Value, o.Options)
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default:
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matches = matchAll(o.Options)
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}
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if o.NoLimit {
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o.Limit = len(o.Options)
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}
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p := tea.NewProgram(model{
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choices: o.Options,
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indicator: o.Indicator,
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matches: matches,
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header: o.Header,
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textinput: i,
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viewport: &v,
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indicatorStyle: o.IndicatorStyle.ToLipgloss(),
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selectedPrefixStyle: o.SelectedPrefixStyle.ToLipgloss(),
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selectedPrefix: o.SelectedPrefix,
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unselectedPrefixStyle: o.UnselectedPrefixStyle.ToLipgloss(),
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unselectedPrefix: o.UnselectedPrefix,
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matchStyle: o.MatchStyle.ToLipgloss(),
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headerStyle: o.HeaderStyle.ToLipgloss(),
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textStyle: o.TextStyle.ToLipgloss(),
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cursorTextStyle: o.CursorTextStyle.ToLipgloss(),
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height: o.Height,
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selected: make(map[string]struct{}),
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limit: o.Limit,
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reverse: o.Reverse,
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fuzzy: o.Fuzzy,
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timeout: o.Timeout,
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hasTimeout: o.Timeout > 0,
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sort: o.Sort,
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}, options...)
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tm, err := p.Run()
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if err != nil {
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return fmt.Errorf("unable to run filter: %w", err)
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}
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m := tm.(model)
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if m.aborted {
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return exit.ErrAborted
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}
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isTTY := isatty.IsTerminal(os.Stdout.Fd())
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// allSelections contains values only if limit is greater
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// than 1 or if flag --no-limit is passed, hence there is
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// no need to further checks
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if len(m.selected) > 0 {
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o.checkSelected(m, isTTY)
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} else if len(m.matches) > m.cursor && m.cursor >= 0 {
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if isTTY {
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fmt.Println(m.matches[m.cursor].Str)
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} else {
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fmt.Println(ansi.Strip(m.matches[m.cursor].Str))
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}
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}
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if !o.Strict && len(m.textinput.Value()) != 0 && len(m.matches) == 0 {
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fmt.Println(m.textinput.Value())
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}
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return nil
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}
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func (o Options) checkSelected(m model, isTTY bool) {
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for k := range m.selected {
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if isTTY {
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fmt.Println(k)
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} else {
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fmt.Println(ansi.Strip(k))
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}
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}
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}
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